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Copyright 2018. All rights reserved. | rev.05172018 | page 1
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
1 Description
The RedRock™ RR121 Series is a magnetic sensor with digital push-
pull output ideal for use in medical, industrial, automotive, and con-
sumer applications. Based on patented Tunneling Magnetoresistance
(TMR) technology with seamless CMOS integration, the RR121 offers
multiple configurations of several parameters to enable applications
like proximity sensing, rotary sensing, and level detection.
The RR121 features available operate sensitivities from 9 G (0.9 mT) to
70 G (7 mT), and either omnipolar, unipolar, or bipolar magnetic field
response. It has the world’s lowest average current drain
(200 nA) for an active magnetic sensor, as well as operating
frequencies up to 10 kHz and high operating temperature ranges
from -40°C up to 125°C.
2 Features
u Operate sensitivity from 9 G to 70 G
u Lowest Average Current < 200 nA
u Omnipolar and Bipolar Latching Responses Available
u Operating Frequencies up to 10 kHz
u Temperature Rated up to 125°C
u RoHS & REACH Compliant
3 Applications
u Proximity Detection
u Rotary Sensing
u Fluid Level Detection
u Door & Lid Closure Detection
u Utility Meters
u Portable Medical Devices
u Motor Controllers
u Consumer Electronics
u Wake-Up mProcessor
Functional Block Diagram
V
DD
DIGITAL
PUSH-PULL
OUTPUT
GND
CURRENT
SOURCE DUTY CYCLE
CONTROL
OUTPUT
LOGIC &
LATCH
Bop/Brp
Comparators
TMR
SENSOR
VREF
SOT-23-3
LGA-4
Device Packages
Device Information
Part Series Package Body Size (mm)
RR121 SOT-23-3 2.9 x 1.6 x 1.2
LGA-4 1.4 x 1.4 x 0.45
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page 2 | Copyright 2018. All rights reserved. | rev.05172018
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
Table of Contents
1. Description ......................................................1
2. Features ....................................................... 1
3. Applications ................................................... 1
4. Specifications for all RR121 Series Sensors ....................... 3
4.1 Absolute Environmental Ratings for all RR121 Series Sensors .. 3
4.2 Absolute Electrical Ratings for all RR121 Series Sensors ....... 3
4.3 Operating Electrical Characteristics
for all RR121 Series Sensors .................................. 3
5. Operating Characteristics
for RR121-1B13-311 and RR121-1B13-312 ......................... 4
6. Graphs - Typical Electrical Characteristics for
RR121-1B13-311 and RR121-1B13-312 ............................. 4
6.1 Average Supply Current vs. Supply Voltage vs. Temperature . 4
6.2 Average Supply Current vs. Temperature vs. Supply Voltage . 4
6.3 Sampling Frequency vs. Supply Voltage vs. Temperature .... 5
7. Graphs - Typical Magnetic Characteristics
for RR121-1B13-311 and RR121-1B13-312 ......................... 5
7.1 B OPN (Red) and BOPS (Blue) vs. Supply Voltage at +25ºC ........ 5
7.2 BRPN (Red) and BRPS (Blue) vs. Supply Voltage at +25ºC . . . . . . . . . 5
7.3 BOPN (Orange) and BOPS (Green) vs.
Operating Temperature at VDD=3.0 V ........................ 6
7.4 B OPN (Red) and BOPS (Blue) vs. Supply Voltage at +25ºC ........ 6
8. Operate & Release Lobe Plots .................................. 6
8.1 RR121-1B13-311 ............................................ 6
8.2 RR121-1B13-312 ............................................ 6
9. Operating Characteristics for RR121-1A23-311 ................... 7
10. Operating Characteristics for RR121-1F23-311 ................... 7
11. Graphs - Typical Characteristics
for RR121-1A23-311 and RR121-1F23-311 ........................ 8
11.1 Average Supply Current vs. Supply Voltage vs. Temperature 8
11.2 Average Supply Current vs. Temperature vs. Supply Voltage 8
11.3 Sampling Frequency vs. Supply Voltage vs. Temperature ... 8
12. Graphs - Typical Magnetic Characteristics for RR121-1A23-311 ... 9
12.1 BOPN (Red) and BOPS (Blue) vs. Supply Voltage at +25ºC ....... 9
12.2 BRPN (Red) and BRPS (Blue) vs. Supply Voltage at +25ºC ....... 9
12.3 BOPN (Orange) and BOPS (Green) vs.
Operating Temperature at VDD=3.0 V ....................... 9
12.4 BOPN (Red) and BOPS (Blue) vs. Supply Voltage at +25ºC ....... 9
13. Operate & Release Lobe Plot .................................. 10
11.1 RR121-1A23-311 ........................................... 10
14. Operating Characteristics for RR121-1B53-311 .................. 10
15. Operating Characteristics for RR121-1A53-311 ................. 11
16. Graphs - Typical Characteristics
for RR121-1B53-311 and RR121-1A53-311 ....................... 11
16.1 Average Supply Current vs.
Supply Voltage vs. Temperature ........................... 11
16.2 Average Supply Current vs.
Temperature vs. Supply Voltage ........................... 11
16.3 Sampling Frequency vs. Supply Voltage vs. Temperature .. 12
17. Graphs - Typical Magnetic Characteristics for RR121-1B53-311 .. 12
17.1 B OPN (Red) and BOPS (Blue) vs. Supply Voltage at +25ºC ...... 12
17. 2 B RPN (Red) and BRPS (Blue) vs. Supply Voltage at +25ºC ...... 12
17. 3 B OPN (Orange) and BOPS (Green) vs.
Operating Temperature at VDD=3.0 V ...................... 13
17.4 BOPN (Red) and BOPS (Blue) vs. Supply Voltage at +25ºC ...... 13
18. Operate & Release Lobe Plots ................................. 13
18.1 RR121-1B53-311 ........................................... 13
19. Operating Characteristics for RR121-3C63-311 ................. 14
20. Graphs - Typical Characteristics for RR121-3C63-311 ............ 14
20.1 Average Supply Current vs. Supply Voltage
vs. Temperature .......................................... 14
20.2 Average Supply Current vs. Temperature
vs. Supply Voltage ........................................ 14
20.3 Sampling Frequency vs. Supply Voltage vs. Temperature .. 14
21. Operating Characteristics for RR121-1E73-311 .................. 15
22. Graphs - Typical Characteristics for RR121-1E73-311 ............ 15
22.1 Average Supply Current vs. Supply Voltage vs. Temperature 15
22.2 Average Supply Current vs. Temperature vs.
Supply Voltage ........................................... 15
22.3 Sampling Frequency vs. Supply Voltage vs. Temperature .. 16
23. Operating Characteristics for RR121-1B93-312 .................. 16
24. Graphs - Typical Characteristics for RR121-1B93-312 ............ 17
24.1 Sampling Frequency vs. Supply Voltage vs. Temperature .. 17
25. Graphs - Typical Magnetic Characteristics for RR121-1B93-311 .. 17
25.1 BOPN (Red) and BOPS (Blue) vs. Supply Voltage at +25ºC ...... 17
25.2 BRPN (Red) and BRPS (Blue) vs. Supply Voltage at +25ºC ...... 17
25.3 BOPN (Orange) and BOPS (Green) vs.
Operating Temperature at VDD=3.0 V ...................... 18
25.4 BOPN (Red) and BOPS (Blue) vs. Supply Voltage at +25ºC ...... 18
26. Application Information ...................................... 18
26.1 RR121 Push-Pull Output Application Circuit (SOT-23) ....... 18
26.2 RR121 Push-Pull Output Application Circuit (LGA-4) ........ 18
27. Part Selection & Ordering Information ........................ 19
27.1 Part Selection Table ....................................... 19
27.2 Device Nomenclature Ordering Information ............... 19
28. Axis of Sensitivity ............................................. 19
29. Dimensions .................................................. 20
29.1 LGA-4 Package Dimensions ............................... 20
29.2 SOT-23-3 Package Dimensions ............................ 20
30. TMR Sensor Location ......................................... 20
30.1 LGA Package ............................................. 20
30.2 SOT Package ............................................. 20
31. Magnetic Flux Response Diagrams ............................ 21
31.1 Omnipolar Magnetic Flux Response (Active Low Option) .. 21
31.2 Bipolar Magnetic Flux Response (Active Low Option) ...... 21
32. Output Behavior vs. Magnetic Field Diagrams ................. 21
32.1 Output Behavior vs. Magnetic Field - Omnipolar ............ 21
32.2 Output Behavior vs. Magnetic Field - Bipolar ............... 21
33. TMR Sensor & Switch Packaging .............................. 22
33.1 SOT-23-3 Tape & Reel Packaging .......................... 22
33.2 LGA-4 Tape & Reel Packaging ............................. 23
34. Suggested Pb-Free Reflow Profile ............................. 24
35. Suggested Solder Pad Layout ................................. 24
35.1 SOT-23-3 Solder Pad Layout ............................... 24
35.2 LGA-4 Solder Pad Layout .................................. 24
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Copyright 2018. All rights reserved. | rev.05172018 | page 3
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
4 Specifications for all RR121 Series Sensors
4.1 Absolute Environmental Ratings for all RR121 Series Sensors1
Parameters Units Min Typ Max
Operating Temperature (TOP)ºC -40 +125
Storage Temperature (TSTG)ºC -65 +150
Junction Temperature (TJ)ºC -40 +150
Soldering Temperature (3 cycles, 1 min.) (TSOL)ºC +260
ESD Level Human Body Model per JESD22-A114 V ±4000
4.2 Absolute Electrical Ratings for all RR121 Series Sensors1
Parameters Units Min Typ Max
Supply Voltage (VDD)V -0.3 +4.0
Push-pull Output (Active Low)(VOUT_PP) V -0.3 VDD +0.3
Open Drain Output Voltage
(Active Low) (VOUT_OD)V -0.3 +5.5
Input and Output Current (VIN/IOUT)mA -10 +10
4.3 Operating Electrical Characteristics for all RR121 Series Sensors2
Parameters Units Min Typ Max
Supply Voltage (VDD) V +2.7 +3.0 +3.6
Output Voltage (High)3 (VOUTH)V 90% VDD
Output Voltage (Low)3 (VOUTL) V 10% VDD
Power-On Time (tON)(VDD > 2.7V) ms500
Under-Voltage Lockout Threshold
Rising VDD (VUVLO_RISE)V+2.20 +2.60
Under-Voltage Lockout Threshold
Falling VDD (VUVLO_FALL)V+1.90 +2.15
Under-Voltage Lockout Hysteresis (VUV_HYST)mV +50
Notes:
1. Exceeding Absolute Ratings may cause permanent damage to the device. Exposure at the maximum rated conditions for extended periods of time may
also affect device reliability.
2. Unless otherwise specified, all characteristics are measured at 25ºC.
3. See "Magnetic Field vs. Output Status" for more details.
ESD Note: This product uses semiconductors that can be damaged by electrostatic discharge (ESD). When handling, proper ESD precautions should be
taken to avoid performance degradation or loss of functionality. Damage due to inappropriate handling is not covered under warranty.
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page 4 | Copyright 2018. All rights reserved. | rev.05172018
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
5 Operating Characteristics for RR121-1B13-311 and RR121-1B13-3121
Parameters Units Min Typ Max
Average Supply Current (IDD (AVG))2nA 200 700
Switching Frequency (fSW)Hz 1 2 4
Active Mode Time (tACT)ms1.4
Idle Mode Time (tIDLE)ms 500
Operate Point (BOPN) G 27 30 38
Operate Point (BOPS) G -38 -30 -27
Release Point (BRPN)G18 20 27
Release Point (BRPS)G-27 -20 -18
Hysteresis (BHYST)3G 5 10
Notes:
1. Unless otherwise specified, VDD = 2.7 V to 3.6 V, TA = -40ºC to +125ºC. Typical values are VDD = 3.0 V and TA = +25ºC.
2. Conditions: t = 10 seconds
3. Conditions: BHYST = BOP - BRP
6 Graphs - Typical Electrical Characteristics for RR121-1B13-311 and RR121-1B13-312
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
Average Supply Current (nA)
0
100
200
300
400
500
600
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Average Supply Current vs.
Supply Voltage vs. Temperature
Sampling Frequency (Hz)
1.0
1.3
1.6
1.9
2.2
2.5
2.8
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Sampling Frequency vs.
Supply Voltage vs. Temperature
Average Supply Current (nA)
0
100
200
300
400
500
600
20-15
-50 55 90 125 160
Ambient Temperature (ºC)
Average Supply Current vs.
Temperature vs. Supply Voltage
VDD=2.7 V
VDD=3.0 V
VDD=3.3 V
VDD=3.6 V
-40ºC
+25ºC
+85ºC
+125ºC
-40ºC
+25ºC
+85ºC
+125ºC
6.1 Average Supply Current vs.
Supply Voltage vs. Temperature
6.2 Average Supply Current vs.
Temperature vs. Supply Voltage
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Copyright 2018. All rights reserved. | rev.05172018 | page 5
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
6 Graphs - Typical Electrical Characteristics for RR121-1B13-311 and RR121-1B13-312
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
7 Graphs - Typical Magnetic Characteristics for RR121-1B13-311 and RR121-1B13-312
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
Average Supply Current (nA)
0
100
200
300
400
500
600
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Average Supply Current vs.
Supply Voltage vs. Temperature
Sampling Frequency (Hz)
1.0
1.3
1.6
1.9
2.2
2.5
2.8
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Sampling Frequency vs.
Supply Voltage vs. Temperature
Average Supply Current (nA)
0
100
200
300
400
500
600
20-15
-50 55 90 125 160
Ambient Temperature (ºC)
Average Supply Current vs.
Temperature vs. Supply Voltage
VDD=2.7 V
VDD=3.0 V
VDD=3.3 V
VDD=3.6 V
-40ºC
+25ºC
+85ºC
+125ºC
-40ºC
+25ºC
+85ºC
+125ºC
6.3 Sampling Frequency vs.
Supply Voltage vs. Temperature
BOP (G)
-45
-30
-15
0
15
30
45
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
BOPN (Blue) and BOPS (Red) vs.
Supply Voltage at +25ºC
BRPN (Blue) and BRPS (Red) vs.
Supply Voltage at +25ºC
BOPN (Blue) and BOPS (Red) vs.
Operating Temperature at VDD=3.0 V
BRPN (Blue) and BRPS (Red) vs.
Operating Temperature at VDD=3.0 V
BOP (G)
-45
-30
-15
0
15
30
45
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-30
-20
-10
0
10
20
30
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-30
-20
-10
0
0
20
30
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
7.1 BOPN (Blue) and BOPS (Red) vs.
Supply Voltage at +25ºC
7.2 B RPN (Blue) and BRPS (Red) vs.
Supply Voltage at +25ºC
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page 6 | Copyright 2018. All rights reserved. | rev.05172018
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
7 Graphs - Typical Magnetic Characteristics for RR121-1B13-311 and RR121-1B13-312
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
BOP (G)
-45
-30
-15
0
15
30
45
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
BOPN (Blue) and BOPS (Red) vs.
Supply Voltage at +25ºC
BRPN (Blue) and BRPS (Red) vs.
Supply Voltage at +25ºC
BOPN (Blue) and BOPS (Red) vs.
Operating Temperature at VDD=3.0 V
BRPN (Blue) and BRPS (Red) vs.
Operating Temperature at VDD=3.0 V
BOP (G)
-45
-30
-15
0
15
30
45
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-30
-20
-10
0
10
20
30
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-30
-20
-10
0
0
20
30
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
7.3 B OPN (Blue) and BOPS (Red) vs.
Operating Temperature at VDD=3.0 V
7.4 BRPN (Blue) and BRPS (Red) vs.
Operating Temperature at VDD=3.0 V
8 Operate & Release Lobe Plots
Operate and release distances show are relative. The actual operate and release distances will depend on the type of magnet that is used.
8.1 RR121-1B13-311 8.2 RR121-1B13-312
0º
330º30º
60º 300º
270º
90º
120 º 240º
210º150º
180º
–––– Operate Distance (mm) –––– Release Distance (mm)
25
20
15
10
5
0
0º
330º30º
60º 300º
270º
90º
120 º 240º
210º150º
180º
–––– Operate Distance (mm) –––– Release Distance (mm)
25
20
15
10
5
0
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Copyright 2018. All rights reserved. | rev.05172018 | page 7
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
9 Operating Characteristics for RR121-1A23-3111
Parameters Units Min Typ Max
Average Supply Current (IDD (AVG))2nA 230 700
Switching Frequency (fSW)Hz 710 13
Active Mode Time (tACT)ms1.4
Idle Mode Time (tIDLE)ms 100
Operate Point (BOPN) G 8 9 12
Operate Point (BOPS) G -12 -9 -8
Release Point (BRPN)G 3 5 7
Release Point (BRPS)G-7 -5 -3
Hysteresis (BHYST)3G 3 4
Notes:
1. Unless otherwise specified, VDD = 2.7 V to 3.6 V, TA = -40ºC to +125ºC. Typical values are VDD = 3.0 V and TA = +25ºC.
2. Conditions: t = 10 seconds
3. Conditions: BHYST = BOP - BRP
10 Operating Characteristics for RR121-1F23-3111
Parameters Units Min Typ Max
Average Supply Current (IDD (AVG))2nA 230 700
Switching Frequency (fSW)Hz 710 13
Active Mode Time (tACT)ms1.4
Idle Mode Time (tIDLE)ms 77 100 143
Operate Point (BOPN) G 70
Operate Point (BOPS) G -70
Release Point (BRPN) G 50
Release Point (BRPS) G -50
Hysteresis (BHYST)3G20
Notes:
1. Unless otherwise specified, VDD = 2.7 V to 3.6 V, TA = -40ºC to +125ºC. Typical values are VDD = 3.0 V and TA = +25ºC.
2. Conditions: t = 10 seconds
3. Conditions: BHYST = BOP - BRP
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page 8 | Copyright 2018. All rights reserved. | rev.05172018
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
11 Graphs - Typical Characteristics for RR121-1A23-311 and RR121-1F23-311
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
Average Supply Current (nA)
0
100
200
300
400
500
600
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Average Supply Current vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Sampling Frequency (Hz)
7.0
8.0
9.0
10.0
11.0
12.0
13.0
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Sampling Frequency vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Average Supply Current (nA)
0
100
200
300
400
500
600
20-15
-50 55 90 125 160
Ambient Temperature (ºC)
Average Supply Current vs.
Temperature vs. Supply Voltage
VDD=2.7 V
VDD=3.0 V
VDD=3.3 V
VDD=3.6 V
11.1 Average Supply Current vs.
Supply Voltage vs. Temperature
11.2 Average Supply Current vs.
Temperature vs. Supply Voltage
Average Supply Current (nA)
0
100
200
300
400
500
600
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Average Supply Current vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Sampling Frequency (Hz)
7.0
8.0
9.0
10.0
11.0
12.0
13.0
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Sampling Frequency vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Average Supply Current (nA)
0
100
200
300
400
500
600
20-15
-50 55 90 125 160
Ambient Temperature (ºC)
Average Supply Current vs.
Temperature vs. Supply Voltage
VDD=2.7 V
VDD=3.0 V
VDD=3.3 V
VDD=3.6 V
11.3 Sampling Frequency vs.
Supply Voltage vs. Temperature
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Copyright 2018. All rights reserved. | rev.05172018 | page 9
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
12 Graphs - Typical Magnetic Characteristics for RR121-1A23-311
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
BOP (G)
-12
-8
-4
0
4
8
12
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
BOPN (Blue) and BOPS (Red) vs.
Supply Voltage at +25ºC
BRPN (Blue) and BRPS (Red) vs.
Supply Voltage at +25ºC
BOPN (Blue) and BOPS (Red) vs.
Operating Temperature at VDD=3.0 V
BRPN (Blue) and BRPS (Red) vs.
Operating Temperature at VDD=3.0 V
BOP (G)
-15
-10
-5
0
5
10
15
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-7.5
-5.0
-2.5
0
2.5
5.0
7.5
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-9
-6
-3
0
3
6
9
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
12.1 BOPN (Blue) and BOPS (Red) vs.
Supply Voltage at +25ºC
12.2 BRPN (Blue) and BRPS (Red) vs.
Supply Voltage at +25ºC
BOP (G)
-12
-8
-4
0
4
8
12
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
BOPN (Blue) and BOPS (Red) vs.
Supply Voltage at +25ºC
BRPN (Blue) and BRPS (Red) vs.
Supply Voltage at +25ºC
BOPN (Blue) and BOPS (Red) vs.
Operating Temperature at VDD=3.0 V
BRPN (Blue) and BRPS (Red) vs.
Operating Temperature at VDD=3.0 V
BOP (G)
-15
-10
-5
0
5
10
15
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-7.5
-5.0
-2.5
0
2.5
5.0
7.5
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-9
-6
-3
0
3
6
9
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
12.3 BOPN (Blue) and BOPS (Red) vs.
Operating Temperature at VDD=3.0 V
12.4 BRPN (Blue) and BRPS (Red) vs.
Operating Temperature at VDD=3.0 V
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REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
13 Operate & Release Lobe Plot
Operate and release distances show are relative. The actual operate and release distances will depend on the type of magnet that is used.
13.1 RR121-1A23-311
0º
330º30º
60º 300º
270º
90º
120 º 240º
210º150º
180º
–––– Operate Distance (mm) –––– Release Distance (mm)
45
40
35
30
25
20
15
10
5
0
14 Operating Characteristics for RR121-1B53-3111
Parameters Units Min Typ Max
Average Supply Current (IDD (AVG))2mA1.4 2.5
Switching Frequency (fSW)Hz 165 250 300
Active Mode Time (tACT)ms1.4
Idle Mode Time (tIDLE)ms 4.0
Operate Point (BOPN)G27 30 38
Operate Point (BOPS) G -38 -30 -27
Release Point (BRPN) G 18 20 27
Release Point (BRPS) G -27 -20 -18
Hysteresis (BHYST)3G 5 10
Notes:
1. Unless otherwise specified, VDD = 2.7 V to 3.6 V, TA = -40ºC to +125ºC. Typical values are VDD = 3.0 V and TA = +25ºC.
2. Conditions: t = 10 seconds
3. Conditions: BHYST = BOP - BRP
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Copyright 2018. All rights reserved. | rev.05172018 | page 11
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
15 Operating Characteristics for RR121-1A53-3111
Parameters Units Min Typ Max
Average Supply Current (IDD (AVG))2mA1.2 2.5
Switching Frequency (fSW)Hz 165 250 300
Active Mode Time (tACT)ms1.4
Idle Mode Time (tIDLE)ms 3.3 4.0 6.0
Operate Point (BOPN) G 8 9 12
Operate Point (BOPS) G -12 -9 -8
Release Point (BRPN) G 3 5 7
Release Point (BRPS)G-7 -5 -3
Hysteresis (BHYST)3G 3 4
Notes:
1. Unless otherwise specified, VDD = 2.7 V to 3.6 V, TA = -40ºC to +125ºC. Typical values are VDD = 3.0 V and TA = +25ºC.
2. Conditions: t = 10 seconds
3. Conditions: BHYST = BOP - BRP
16 Graphs - Typical Characteristics for RR121-1B53-311 and RR121-1A53-311
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
Average Supply Current (
µA)
0
0.3
0.6
0.9
1.2
1.5
1.8
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Average Supply Current vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Sampling Frequency (Hz)
150
180
210
240
270
300
330
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Sampling Frequency vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Average Supply Current (nA)
0
0.3
0.6
0.9
1.2
1.5
1.8
20-15
-50 55 90 125 160
Ambient Temperature (ºC)
Average Supply Current vs.
Temperature vs. Supply Voltage
VDD=2.7 V
VDD=3.0 V
VDD=3.3 V
VDD=3.6 V
16.1 Average Supply Current vs.
Supply Voltage vs. Temperature
16.2 Average Supply Current vs.
Temperature vs. Supply Voltage
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REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
16 Typical Characteristics for RR121-1B53-311 and RR121-1A53-311
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
Average Supply Current (µA)
0
0.3
0.6
0.9
1.2
1.5
1.8
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Average Supply Current vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Sampling Frequency (Hz)
150
180
210
240
270
300
330
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Sampling Frequency vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Average Supply Current (nA)
0
0.3
0.6
0.9
1.2
1.5
1.8
20-15
-50 55 90 125 160
Ambient Temperature (ºC)
Average Supply Current vs.
Temperature vs. Supply Voltage
VDD=2.7 V
VDD=3.0 V
VDD=3.3 V
VDD=3.6 V
16.3 Sampling Frequency vs.
Supply Voltage vs. Temperature
17 Graphs - Typical Magnetic Characteristics for RR121-1B53-311
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
BOP (G)
-45
-30
-15
0
15
30
45
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
BOPN (Blue) and BOPS (Red) vs.
Supply Voltage at +25ºC
BRPN (Blue) and BRPS (Red) vs.
Supply Voltage at +25ºC
BOPN (Blue) and BOPS (Red) vs.
Operating Temperature at VDD=3.0 V
BRPN (Blue) and BRPS (Red) vs.
Operating Temperature at VDD=3.0 V
BOP (G)
-45
-30
-15
0
15
30
45
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-30
-20
-10
0
10
20
30
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-30
-20
-10
0
10
20
30
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
17.1 BOPN (Blue) and BOPS (Red) vs.
Supply Voltage at +25ºC
17.2 B RPN (Blue) and BRPS (Red) vs.
Supply Voltage at +25ºC
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REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
17 Graphs - Typical Magnetic Characteristics for RR121-1B53-311
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
BOP (G)
-45
-30
-15
0
15
30
45
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
BOPN (Blue) and BOPS (Red) vs.
Supply Voltage at +25ºC
BRPN (Blue) and BRPS (Red) vs.
Supply Voltage at +25ºC
BOPN (Blue) and BOPS (Red) vs.
Operating Temperature at VDD=3.0 V
BRPN (Blue) and BRPS (Red) vs.
Operating Temperature at VDD=3.0 V
BOP (G)
-45
-30
-15
0
15
30
45
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-30
-20
-10
0
10
20
30
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-30
-20
-10
0
10
20
30
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
17.3 B OPN (Blue) and BOPS (Red) vs.
Operating Temperature at VDD=3.0 V
17.4 BRPN (Blue) and BRPS (Red) vs.
Operating Temperature at VDD=3.0 V
18 Operate & Release Lobe Plot
Operate and release distances show are relative. The actual operate and release distances will depend on the type of magnet that is used.
18.1 RR121-1B53-311
0º
330º30º
60º 300º
270º
90º
120 º 240º
210º150º
180º
–––– Operate Distance (mm) –––– Release Distance (mm)
25
20
15
10
5
0
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REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
19 Operating Characteristics for RR121-3C63-3111
Parameters Units Min Typ Max
Average Supply Current (IDD (AVG))2mA1.7 3.3
Switching Frequency (fSW)Hz 325 500 600
Active Mode Time (tACT)ms1.4
Idle Mode Time (tIDLE)ms 2.0
Operate Point (BOPS) G 8 10 14
Release Point (BRPN) G 14 -10 -8
Notes:
1. Unless otherwise specified, VDD = 2.7 V to 3.6 V, TA = -40ºC to +125ºC. Typical values are VDD = 3.0 V and TA = +25ºC.
2. Conditions: t=10
20 Graphs - Typical Characteristics for RR121-3C63-311
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
Average Supply Current (
µA)
0
0.5
1.0
1.5
2.0
2.5
3.0
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Average Supply Current vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Average Supply Current (
µA)
0
0.5
1.0
1.5
2.0
2.5
3.0
20-15
-50 55 90 125 160
Ambient Temperature (ºC)
Average Supply Current vs.
Temperature vs. Supply Voltage
VDD=2.7 V
VDD=3.0 V
VDD=3.3 V
VDD=3.6 V
Sampling Frequency (Hz)
320
380
440
500
560
620
690
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Sampling Frequency vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Average Supply Current (µA)
0
0.5
1.0
1.5
2.0
2.5
3.0
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Average Supply Current vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Average Supply Current (µA)
0
0.5
1.0
1.5
2.0
2.5
3.0
20-15
-50 55 90 125 160
Ambient Temperature (ºC)
Average Supply Current vs.
Temperature vs. Supply Voltage
VDD=2.7 V
VDD=3.0 V
VDD=3.3 V
VDD=3.6 V
Sampling Frequency (Hz)
320
380
440
500
560
620
690
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Sampling Frequency vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
20.1 Average Supply Current vs.
Supply Voltage vs. Temperature
20.3 Sampling Frequency vs.
Supply Voltage vs. Temperature
20.2 Average Supply Current vs.
Temperature vs. Supply Voltage
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REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
22 Graphs - Typical Characteristics for RR121-1E73-311
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
Average Supply Current (
µA)
0
2
4
6
8
10
12
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Average Supply Current vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Sampling Frequency (kHz)
1.0
1.5
2.0
2.5
3.0
3.5
4.0
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Sampling Frequency vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Average Supply Current (
µA)
0
2
4
6
8
10
12
20-15
-50 55 90 125 160
Ambient Temperature (ºC)
Average Supply Current vs.
Temperature vs. Supply Voltage
VDD=2.7 V
VDD=3.0 V
VDD=3.3 V
VDD=3.6 V
22.1 Average Supply Current vs.
Supply Voltage vs. Temperature
22.2 Average Supply Current vs.
Temperature vs. Supply Voltage
21 Operating Characteristics for RR121-1E73-3111
Parameters Units Min Typ Max
Average Supply Current (IDD (AVG))2mA813
Switching Frequency (fSW)Hz 1.63 2.50 3.25
Active Mode Time (tACT)ms1.4
Idle Mode Time (tIDLE)ms 308 400 614
Operate Point (BOPN) G 13 15 18
Operate Point (BOPS) G -18 -15 -13
Release Point (BRPN) G 8 10 13
Release Point (BRPS)G-13 -10 -8
Hysteresis (BHYST)3G 3 5
Notes:
1. Unless otherwise specified, VDD = 2.7 V to 3.6 V, TA = -40ºC to +125ºC. Typical values are VDD = 3.0 V and TA = +25ºC.
2. Conditions: t = 10 seconds
3. Conditions: BHYST = BOP - BRP
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REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
22 Typical Characteristics for RR121-1E73-311
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
Average Supply Current (µA)
0
2
4
6
8
10
12
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Average Supply Current vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Sampling Frequency (kHz)
1.0
1.5
2.0
2.5
3.0
3.5
4.0
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Sampling Frequency vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
Average Supply Current (µA)
0
2
4
6
8
10
12
20-15
-50 55 90 125 160
Ambient Temperature (ºC)
Average Supply Current vs.
Temperature vs. Supply Voltage
VDD=2.7 V
VDD=3.0 V
VDD=3.3 V
VDD=3.6 V
22.3 Sampling Frequency vs.
Supply Voltage vs. Temperature
23 Operating Characteristics for RR121-1B93-3121
Parameters Units Min Typ Max
Average Supply Current (IDD (AVG))2mA36
Switching Frequency (fSW)kHz 710 13
Active Mode Time (tACT)ms1.4
Idle Mode Time (tIDLE)ms 77 100 143
Operate Point (BOPN) G 27 30 38
Operate Point (BOPS) G -38 -30 -27
Release Point (BRPN) G 18 20 27
Release Point (BRPS) G -27 -20 -18
Hysteresis (BHYST)3G 5 10
Notes:
1. Unless otherwise specified, VDD = 2.7 V to 3.6 V, TA = -40ºC to +125ºC. Typical values are VDD = 3.0 V and TA = +25ºC.
2. Conditions: t = 10 seconds
3. Conditions: BHYST = BOP - BRP
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REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
24 Graphs - Typical Characteristics for RR121-1B93-312
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
Sampling Frequency (kHz)
7.0
8.0
9.0
10.0
11.0
12.0
13.0
2.92.7
2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
Sampling Frequency vs.
Supply Voltage vs. Temperature
-40ºC
+25ºC
+85ºC
+125ºC
24.1 Sampling Frequency vs.
Supply Voltage vs. Temperature
25 Graphs - Typical Magnetic Characteristics for RR121-1B93-312
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
BOP (G)
-45
-30
-15
0
15
30
45
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
BOPN (Blue) and BOPS (Red) vs.
Supply Voltage at +25ºC
BRPN (Blue) and BRPS (Red) vs.
Supply Voltage at +25ºC
BOPN (Blue) and BOPS (Red) vs.
Operating Temperature at VDD=3.0 V
BRPN (Blue) and BRPS (Red) vs.
Operating Temperature at VDD=3.0 V
BOP (G)
-45
-30
-15
0
15
30
45
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-30
-20
-10
0
10
20
30
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-30
-20
-10
0
10
20
30
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
25.1 BOPN (Blue) and BOPS (Red) vs.
Supply Voltage at +25ºC
25.2 BRPN (Blue) and BRPS (Red) vs.
Supply Voltage at +25ºC
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REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
25 Typical Magnetic Characteristics for RR121-1B93-312
VDD = 3.0 V and TA = +25 ºC, CDD = 1.0 µF (unless otherwise specified)
BOP (G)
-45
-30
-15
0
15
30
45
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
BOPN (Blue) and BOPS (Red) vs.
Supply Voltage at +25ºC
BRPN (Blue) and BRPS (Red) vs.
Supply Voltage at +25ºC
BOPN (Blue) and BOPS (Red) vs.
Operating Temperature at VDD=3.0 V
BRPN (Blue) and BRPS (Red) vs.
Operating Temperature at VDD=3.0 V
BOP (G)
-45
-30
-15
0
15
30
45
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-30
-20
-10
0
10
20
30
10-20-50 40 70 100 130
Operating Temperature (ºC)
BRP (G)
-30
-20
-10
0
10
20
30
2.9-2.7-2.5 3.1 3.3 3.5 3.7
Supply Voltage (V)
25.3 BOPN (Blue) and BOPS (Red) vs.
Operating Temperature at VDD=3.0 V
25.4 BRPN (Blue) and BRPS (Red) vs.
Operating Temperature at VDD=3.0 V
26.1 Application Circuit (SOT-23) 26.2 Application Circuit (LGA-4)
GND
RR121 VOUT
VDD
2
1
3
1.0mF
GND
RR121 VOUT
VDD
3
2
4
1.0mF
RR121 Push-Pull Output Application Circuit
The output voltage on the RR121 is active low, meaning that while a
sufficiently strong magnetic field is present, the output voltage is low.
The output voltage can be connected to a digital I/O pin on a microcon-
troller. A decoupling capacitor between the supply voltage and ground
is required with placement close to the magnetic sensor. A typical
capacitor value of 1.0 mF will suffice.
26 Application Information
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Copyright 2018. All rights reserved. | rev.05172018 | page 19
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
GND
VDD OUT
3
N S
1 2
Axis of
Sensitivity
GND 4 3 OUT
2 V
DD
DNC 1
N S
SOT-23 PackageLGA Package
28 Axis of Sensitivity
27 Part Selection and Ordering Information
27.1 Part Selection Table
Part Number
Magnetic
Polarity
Response
Operate
Sensitivity
(G)
Release
Sensitivity
(G)
Frequency
(Hz)
Iavg
(µA)
Temp.
Rating
(ºC)
Supply
Voltage
(V
dd
)
Output
Response Package
RR121-1B13-312 Omnipolar 30 20 20.20 -40 - +125 2.7 - 3.6 Active Low LGA-4
RR121-1B13-311 Omnipolar 30 20 20.20 -40 - +125 2.7 - 3.6 Active Low SOT-23-3
RR121-1B53-311 Omnipolar 30 20 250 1.44 -40 - +125 2.7 - 3.6 Active Low SOT-23-3
RR121-1A23-311 Omnipolar 9 5 10 0.24 -40 - +125 2.7 - 3.6 Active Low SOT-23-3
RR121-3C63-311 Bipolar 10 -10 500 1.70 -40 - +125 2.7 - 3.6 Active Low SOT-23-3
RR121-1F23-311 Omnipolar 70 50 10 0.24 -40 - +125 2.7 - 3.6 Active Low SOT-23-3
RR121-1A53-311 Omnipolar 9 5 250 1.44 -40 - +125 2.7 - 3.6 Active Low SOT-23-3
RR121-1E73-311 Omnipolar 15 10 2500 8 -40 - +125 2.7 - 3.6 Active Low SOT-23-3
RR121-1B93-312 Omnipolar 30 20 10000 36 -40 - +125 2.7 - 3.6 Active Low LGA-4
Note:
1. Custom options available for Sensitivity, Frequency, Temperature Rating, Supply Voltage, Output Response & more.
Please contact redrock@cotorelay.com for more details.
Ordering Information
RR121-X
X
X
3-Y
Y
Y
Series
Magnetic Sensitivity
A: Op 9, Rel 5 E: Op 15, Rel 10
B: Op 30, Rel 20 F: Op 70, Rel 50
C: Op 10, Rel -10 Temp Rating (ºC)
3: -40-+125
Clock Frequency (Hz)
1: 2 Hz 6: 500 Hz
2: 10 Hz 7: 2500 Hz
5: 250 Hz 9: 10000 Hz
Magnetic Polarity Response
1 = Omnipolar
3 = Bipolar/Latch
Supply Voltage/Output
3: 3V
Output Response
1: Active Low
Package
1: SOT-23-3
2: LGA-4
27.2 Device Nomenclature
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REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
30.1 LGA Package 30.2 SOT Package
30 TMR Sensor Location
4
1
3
1.40 mm
1.40 mm
0.50
mm
0.50
mm 2
1 2
3
1.60 mm
1.45 mm
2.90 mm
0.80 mm
29 Dimensions Millimeters (Inches)
29.2 SOT-23-3 Package
2.90±0.15
(0.114 ± .006)
1.45±0.20
(0.057 ± .008)
1.60±0.15
(0.063 ± .006)
2.80±0.25
.010)
0.6
(0.024)
1.90 (0.075)
0.40±0.15
(.016 ± .006)
Side View
1.10±0.15
(.043± .006)
0.10±0.10
(.004 ± .004)
0.44±0.15
(.017 ± .006)
1.20±0.20
(.047 ± .008)
29.1 LGA-4 Package
PIN1
1.40 ±.05 (0.055 ±.002)
1.40 ±.05 (0.055 ±.002)
0.436±.05
(0.017±.002) 0.65
(0.026)
0.35 ±.05
(0.014 ±.002)
0.20 ±.05
(0.008±
.002)
0.35 ±.05
(0.014 ±.002)
0.20 ±.05
(0.008 ±.002)
0.65
(0.026)
0.14
(0.005)
PIN 1
Top View Side View Bottom View
1
2
4
3
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Copyright 2018. All rights reserved. | rev.05172018 | page 21
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
31 Magnetic Flux Response Diagrams
32 Output Behavior vs. Magnetic Field Diagrams
31.1 Omnipolar Magnetic Flux Response
(Active Low Option)
Output HIGH
Output LOW
N - PoleS - Pole
BRPS BRPN
VOUT
BOPN
BOPS
0
31.2 Bipolar Magnetic Flux Response
(Active Low Option)
Output HIGH
Output LOW
N - PoleS - Pole
BRPN
VOUT
BOPS
0
BHYS
32.1 Output Behavior vs. Magnetic Field - Omnipolar
32.2 Output Behavior vs. Magnetic Field - Bipolar
Characteristics Conditions Output
South Pole B < B
OPS
0 > B > B
RPS
Low (ON)
High (OFF)
North Pole B > B
OPN
0 < B < B
RPN
Low (ON)
High (OFF)
Characteristics Conditions Output
South Pole B < B
OPS
Low (ON)
North Pole B > B
RPN
High (OFF)
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page 22 | Copyright 2018. All rights reserved. | rev.05172018
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
33.1 SOT-23-3 Tape & Reel Packaging
Standard packaging is Tape & Reel containing 3,000 pieces. MSL Rating is 1.
33TMR Sensor & Switch Packaging
Ø
13.5±0.05
2.2±0.05
10.6
0.2
0.4
0.6
0.8
0.2
0.4
EIAJ
0.6
0.8
5
4
3
2
1
0
4
3
2
1
0
0
.
9
5
m
m
0
.
7
5
m
m
Ø
60.0±0.05
Ø
178.0±0.05
1.5
9.0
+1.5
-0
Ø
60.0±0.05
Ø
178.0±0.05
1.5
9.0
+1.5
-0
see
Fig. B
below
2.0 ± 0.05
Ø
1.1 ± 0.1
4.0 ± 0.01
4.0 ± 0.01
1.75 ± 0.1
3.5 ± 0.05
8.0 ± 0.2
2.75
Ø
1.5
+0.1
-0
1.1 ± 0.1
Ao3.3 ± 0.1
5º MAX.(2X)5º MAX.(2X)
R0.3
R0.3
Ko1.47 ± 0.1
0.20 ± 0.05
5º MAX.(2X)
5º MAX.
R0.3
R0.3
0.6
Bo3.2 ± 0.
1
2.55 ± 0.
1
see Fig. A
below
Fig. AFig. B
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Copyright 2018. All rights reserved. | rev.05172018 | page 23
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
33.2 LGA-4 Tape & Reel Packaging
Standard packaging is Tape & Reel containing 3,000 pieces. MSL Rating is 3.
0.2
0.4
0.6
0.8
Ø
60.0±0.05
Ø
13.0±0.50
Ø
56.0
Ø
178.0±0.05
1.4 9.0
Ø
178.00±0 . 50
5.00±0.5
0.2
0.4
0.6
0.8
0.2
0.4
0.6
0.8
Ø
60.0±0.05
Ø
13.0±0.50
Ø
56.0
Ø
178.0±0.05
1.4 9.0
+1.5
0.00
Ø
178.00±0 . 50
5.00±0.5
0.2
0.4
0.6
0.8
Ø
178.00±0 . 5
0
Ø
178.00±0 . 5
0
PC
PC
see
Fig. B
below
1.5+0.1
+0
4.0±0.10
2.0±0.05
4.0±0.10
1.75 ± 0.1
3.5 ± 0.05
8.0 ± 0.2
1.65±0.5
5º MAX.
0.65±0.05
1.65±0.05
0.25±0.02
5º MAX.
see
Fig. A
below
Fig. A Fig. B
33 TMR Sensor & Switch Packaging
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™
page 24 | Copyright 2018. All rights reserved. | rev.05172018
REDROCK™ RR121 SERIES TMR DIGITAL MAGNETIC SENSOR
Notes:
1. Fully compatible with standard no-lead solder profile, 260 ºC for 30 seconds max (3 cycles max).
2. Profile shown as example. Users are advised to develop their own board-level profile.
3. Suggested Pb-free reflow profile derived from IPC/JEDEC J-STD-020E.
4. Temperature tolerance: +0 ºC, as measured at any point on the package or leads
5. MSL rating of 1 (SOT-23-3 only) compatible with J-STD-020 or equivalent.
6. MSL rating of 3 (LGA-4 only) compatible with J-STD-020 or equivalent.
7. All temperatures refer to the center of the package, measured on the package body surface that is facing up during assembly reflow (e.g., live-
bug). If parts are reflowed in other than the normal live bug assembly reflow orientation (i.e., dead-bug), Tp shall be within ± 2 °C of the live bug
Tp and still meet the Tc requirements, otherwise, the profile shall be adjusted to achieve the latter. To accurately measure actual peak package
body temperatures, refer to JEP140 for recommended thermocouple use.
8. Reflow profiles in this document are for classification/preconditioning and are not meant to specify board assembly profiles. Actual board as-
sembly profiles should be developed based on specific process needs and board designs and should not exceed the parameters in this table.
34 Suggested Pb-Free Reflow Profile
25
60-120 seconds
Max. Ramp Up Rate = 3ºC/s
Max. Ramp Down Rate = 6ºC/s
Preheat Area
260ºC
217ºC
200ºC
30 seconds max.
255ºC
150ºC
Time
Temperature
Time 25ºC to Peak
60-150
seconds
35 Suggested Solder Pad Layout
35.1 SOT -23-3 Solder Pad Layout 35.2 LGA-4 Solder Pad Layout
0.65
(0.026)
0.015
(0.385)
0.015
(0.385)
0.65
(0.026)
3X .030
.037
.075
3X .047
.124
0.062