Features
• Supply current (ICC): 11 mA (max.)
• Supply voltage (VCC): 10‑30 V
• Output current (IO): ±0.4 A (min.)
• Switching time (tPLH/tPHL): 1 µs (max.)
• Isolation voltage (VISO): 3750 Vrms (min.)
• UL 577 Recognized: File No. E55361
• CSA Approved
• 10 kV/µs Minimum Common Mode Rejection (CMR)
at Vcm = 600 V
• Creepage distance: 7.4 mm
Clearance: 7.1 mm
Applications
• IGBT/MOSFET gate drive
• AC/brushless DC motor drives
• Industrial inverters
• Switch mode power supplies
HCPL-T251
0.4 Amp Output Current IGBT Gate Drive Optocoupler
Data Sheet
Description
The HCPL‑T251 contains GaAsP LED. The LED is optically
coupled to an integrated circuit with a power output stage.
This optocoupler is ideally suited for driving power IGBTs
and MOSFETs used in motor control inverter applications.
The high operating voltage range of the output stage
provides the drive voltages required by gate controlled
devices. The voltage and current supplied by this opto‑
coupler makes it ideally suited for directly driving small
or medium power IGBTs.
Functional Diagram
CAUTION: It is advised that normal static precautions be taken in handling and assembly
of this component to prevent damage and/or degradation which may be induced by ESD.
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
A 0.1 µF bypass capacitor must be
connected between pins 5 and 8.
Truth Table
LED Vout
OFF LOW
ON HIGH
1
3
SHIELD
2
4
8
6
7
5
N/C
CATHODE
ANODE
N/C
VCC
VO
N/C
VEE
2
HCPL-T251
HCPL‑T251 is UL Recognized with 3750 Vrms for 1 minute per UL1577.
Option
Part RoHS Non RoHS Surface Gull Tape
Number Compliant Compliant Package Mount Wing & Reel Quantity
‑000E No option 300mil 50 per tube
HCPL‑T251 ‑300E #300 DIP‑8 X X 50 per tube
‑500E #500 X X X 1000 per reel
To order, choose a part number from the part number column and combine with the desired option from the option
column to form an order entry.
Example 1:
HCPL‑T251‑500E to order product of 300 mil DIP Gull Wing Surface Mount package in Tape and Reel and RoHS com‑
pliant.
Example 2:
HCPL‑T251 to order product of 300 mil DIP package in tube packaging and non RoHS compliant.
Option datasheets are available. Contact your Avago sales representative or authorized distributor for information.
Remarks: The notation ‘#XXX’ is used for existing products, while (new) products launched since 15th July 2001 and
RoHS compliant option will use ‘‑XXXE‘.
3
Package Outline Drawings
Standard DIP Package
Gull Wing Surface Mount Option 300
1.080 ± 0.320
(0.043 ± 0.013)
2.54 ± 0.25
(0.100 ± 0.010)
0.51 (0.020) MIN.
0.65 (0.025) MAX.
4.70 (0.185) MAX.
2.92 (0.115) MIN.
5° TYP. 0.254 + 0.076
- 0.051
(0.010 + 0.003)
- 0.002)
7.62 ± 0.25
(0.300 ± 0.010)
6.35 ± 0.25
(0.250 ± 0.010)
9.65 ± 0.25
(0.380 ± 0.010)
1.78 (0.070) MAX.
1.19 (0.047) MAX.
A T251
YYWW DATE CODE
DIMENSIONS IN MILLIMETERS AND (INCHES).
5678
4321
NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.
3.56 ± 0.13
(0.140 ± 0.005)
PIN ONE
0.635 ± 0.25
(0.025 ± 0.010) 12° NOM.
9.65 ± 0.25
(0.380 ± 0.010)
0.635 ± 0.130
(0.025 ± 0.005)
7.62 ± 0.25
(0.300 ± 0.010)
5
6
7
8
4
3
2
1
9.65 ± 0.25
(0.380 ± 0.010)
6.350 ± 0.25
(0.250 ± 0.010)
1.016 (0.040)
1.27 (0.050)
10.9 (0.430)
2.0 (0.080)
LAND PATTERN RECOMMENDATION
1.080 ± 0.320
(0.043 ± 0.013)
3.56 ± 0.13
(0.140 ± 0.005)
1.780
(0.070)
MAX.
1.19
(0.047)
MAX.
2.54
(0.100)
BSC
DIMENSIONS IN MILLIMETERS (INCHES).
LEAD COPLANARITY = 0.10 mm (0.004 INCHES).
NOTE: FLOATING LEAD PROTRUSION IS 0.25 mm (10 mils) MAX.
0.254 + 0.076
- 0.051
(0.010 + 0.003)
- 0.002)
4
Regulatory Information
The HCPL‑T251 is under approval by the following organizations:
UL
Approval under UL 1577, Component Recognition Pro‑
gram, File E55361.
CSA
Approval under CSA Component Acceptance Notice #5,
File CA 88324.
Insulation and Safety Related
Parameter Symbol Value Units Conditions
Minimum External Air Gap L(101) 7.1 mm Measured from input terminals to output
(Clearance) terminals, shortest distance through air.
Minimum External Tracking L(102) 7.4 mm Measured from input terminals to output
(Creepage) terminals, shortest distance path along body.
Minimum Internal Plastic Gap 0.08 mm Insulation thickness between emitter and detector;
(Internal Clearance) also known as distance through insulation
Tracking Resistance CTI ≥175 Volts DIN IEC 112/VDE 0303 Part 1
(Comparative Tracking Index)
Isolation Group IIIa Material Group (DIN VDE 0110, 1/89, Table 1)
Absolute Maximum Ratings (Compared with HCPL‑3140)
HCPL-3140 HCPL-T251
Parameter Symbol Units Min. Max. Min. Max. Note
Operating Temperature TA °C ‑40 100 ‑20 85
“High” Peak Output Current IOH(PEAK) A 0.6 0.4 1
“High” Peak Output Current IOL(PEAK) A 0.6 0.4
Storage Temperature TS °C ‑55 125 ‑55 125
Average Input Current IF(AVG) mA 25 20 2
Peak Transient Input Current IF(TRAN) A 1.0 1.0
(<1 µs Pulse Width, 300 pps)
Reverse Input Voltage VR V 5 5
Supply Voltage (VCC ‑ VEE) V ‑0.5 35 ‑0.5 35
Output Voltage VO V 0 VCC 0 VCC
Output Power Dissipation PO mW 250 250 3
Lead Solder Temperature 260°C for 10 sec., 1.6 mm below seating plane
Solder Reflow Temperature Profile See Package Outline Drawings section
Notes:
1. Maximum pulse width = 10 µs, maximum duty cycle = 0.2%.
2. Derate linearly above 70°C free‑air temperature at a rate of 0.3 mA/°C.
3. Derate lineraly above 70°C free‑air temperature at a rate of 4.8 mW/°C.
5
Recommended Operating Conditions
Parameter Symbol Min. Max. Units
Power Supply Voltage VCC ‑ VEE 15 30 V
Input Current (ON) IF(ON) 8 12 mA
Input Voltage (OFF) VF(OFF) 0 0.8 V
DC Electrical Specifications (Compared with HCPL‑3140)
Over recommended operating conditions (IF(ON) = 8 to 12 mA, VF(OFF) = 0 to 0.8 V, VCC = 15 to 30 V, VEE = Ground) un‑
less otherwise specified.
HCPL-3140 HCPL-T251 Test
Parameter Symbol Units Min. Typ.* Max. Min. Typ.* Max. Conditions Note
Input Forward VF V 1.2 1.5 1.8 1.6 1.8 IF = 10 mA
Voltage
Temperature ∆VF/∆TA mV/°C ‑1.6 ‑2.0 IF = 10 mA
Coefficient of
Forward Voltage
Input Reverse IR µA 10 10 VR = 5 V
Current
Input Capacitance CIN pF 60 45 250 VF = 0 V,
F = 1 MHz
High Level IOH A 0.2 0.25 VO = VCC ‑ 4 V
Output Current 0.4 0.5 N.A. VO = VCC ‑ 15 V
Low Level IOL A 0.2 0.4 0.1 0.2 VO = VCC ‑ 4 V
Output Current 0.4 0.5 N.A. VO = VCC ‑ 15 V
High Level VOH V VCC ‑ 4 VCC ‑ 1.8 VCC ‑ 4 VCC ‑ 1.8 IO = ‑100 mA
Output Voltage
Low Level VOL V 0.4
1
0.5
IO = 100 mA
Output Voltage
High Level ICCH mA 0.7 3 7.5 11 Output Open
Supply CurrentntSupply Current IF = 7 to 16 mA
Low Level ICCL mA 1 ‑ 2 3 8 11 Output Open
Supply Current VF = ‑3.0 to
+0.8 V
Threshold Input IFLH mA 6 7 IO = 0 mA,
Current Low to VO > 5 V
High
Threshold Input VFHL V 0.8 0.8
Voltage High
to Low
Supply Voltage VCC V 10 30 10 30
Capacitance CI‑0 pF 60 60
(Input‑Output)
Resistance RI‑0 Ω 1012 1012
(Input‑Output)
*All typical values at TA = 25°C and V
CC ‑ VEE = 3° V, unless otherwise noted.
Switching Specifications (AC) (Compared with HCPL‑3140)
Over recommended operating conditions (TA = ‑40 to 100°C, IF(ON) = 8 to 12 mA, VF(OFF) = ‑3.0 to 0.8 V,
VCC = 15 to 30 V, VEE = Ground) unless otherwise specified.
Parameter Symbol Units
HCPL-3140
(-40°C ~ 100°C)
HCPL-T251
(-20°C ~ 70°C) Test
Conditions NoteMin. Typ.* Max. Min. Typ.* Max.
Propagation Delay
Time to High
Output Level
tPHL µs 0.1 0.2 0.7 0.25 1 Rg = 47 Ω
Cg = 3 nF,
f = 10 kHz,
Duty Cycle = 50%
Propagation Delay
Time to Low
Output Level
TPLH µs 0.1 0.3 0.7 0.25 1
Output Rise Time tRns 50 N.A.
Output Fall Time tFns 50 N.A.
Propagation
Delay Difference
Between Any
Two Parts
(tPHL ‑
tPLH)
PDD
µs ‑0.5 0.5 N.A. N.A. 1
Output High
Level Common
Mode Transient
Immunity
|CMH| kV/µs 10 10 TA = 25°C, VCC = 30 V 2
HCPL
‑3140
IF = 10 mA
VCM = 1000 V
HCPL
‑T251
IF = 8 mA
VCM = 600 V
Output Low
Level Common
Mode Transient
Immunity
|CML| kV/µs 10 10 TA = 25°C, VF = 0 V 2
HCPL
‑3140
VCM = 1000 V
HCPL
‑T251
VCM = 600 V
*All typical values at TA = 25°C and VCC ‑ VEE = 30 V, unless otherwise noted.
Notes:
1. The difference between tPHL and tPLH between any two HCPL‑3140 parts under the same test condition.
2. Common mode transient immunity in the high state is the maximum tolerable dVCM/dt of the common mode pulse, VCM, to assure that the
output will remain in the high state (i.e., VO > 15.0 V).
3. Common mode transient immunity in a low state is the maximum tolerable dVCM/dt of the common mode pulse, VCM, to assure that the out‑
put will remain in a low state (i.e., VO < 1.0 V).
For product information and a complete list of distributors, please go to our website: www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries.
Data subject to change. Copyright © 2005-2010 Avago Technologies. All rights reserved. Obsoletes AV01-0533EN
AV02-2364EN - February 22, 2010
