ON/OFF (2)
HIGH SIGNAL HERE
DISABLE OUTPUT
-VIN (4)
-SENSE (6)
+SENSE (8)
TRIM (7) 10K ohms
TRIMPOT
-SENSE (6)
TRIM UP
TRIM (7)
TRIM DOWN
+SENSE (8)
2.40
(61.00)
0.080
(2.03)
2pl.
0.50
(12.70)
0.18 min.
(4.60) 2*R1.50
Mounting Inserts
M3*0.5 Through 4pl.
1.400
(35.56)
2.00
(50.8)
0.600
(15.24)
4
3
2
1
5
6
7
8
9
1.90
(48.3)
2.28
(57.90)
BOTT OM VIEW
0.040
(1.02) 7pl.
All Specifications Typical At Nominal Line, Full Load and 25˚C Unless Otherwise Noted.
CASE HB
All Specifications Typical At Nominal Line, Full Load and 25˚C Unless Otherwise Noted.
Specifications
INPUT SPECIFICATIONS:
Input Voltage Range.........................................................24V.............. 9-36V
48V............ 18-75V
Undervoltage lockout .................................24Vin power up................8.8V
power down ..................8V
48Vin power up..................17V
power down ................16V
Positive Logic Remote ON/OFF3, 4
Input Filter ............................................................................................ PI Type
OUTPUT SPECIFICATIONS:
Voltage Accuracy : .................................................................. ±1% max.
Transient Response :25% Step Load Change........................
<
500µ sec.
External Trim Adj. Range ..................................................................±10%
Ripple & Noise, 20MHz BW, 3.3V & 5V........................ 40mV RMS., max.
100mV pk-pk, max.
12V & 15V........................ 60mV RMS., max.
150mV pk-pk, max.
24V.......................100mV RMS., max.
240mV pk-pk, max.
Temperature Coefficient........................................................ ±0.03%/˚C
Short Circuit Protection......................................................... Continuous
Line Regulation1 ..................................................................... ±0.2% max.
Load Regulation2 .................................................................. ±0.2% max.
Over Voltage Protection trip Range, % Vo nom.....................115-140%
Current Limit .............................................110% ~160% Nominal Output
GENERAL SPECIFICATIONS:
Efficiency....................................................................................See Table
Isolation Voltage ...........................Input/Output.............1500VDC min.
Input/Case................. 1500VDC min.
Output/Case.............1500VDC min.
Isolation Resistance .............................................................107 ohm min.
Switching Frequency ............................................................300KHz, Typ.
Operating Case Temperature ........................................-40˚C to 100˚C
Storage Temperature ...................................................-55˚C to +105˚C
Thermal Shutdown, Case Temp. .......................................... 100˚C Typ.
Dimensions ............................................................2.28x2.40x0.50 inches
(57.9x61.0x12.7 mm)
Case Material.............................................................................Aluminum
Weight...................................................................................................94g
NOTE:
1. Measured From High Line to Low Line.
2. Measured From Full Load to Zero Load.
3. Logic Compatibility .............. Open Collector ref, to -Input.
Module ON ....................Open Circuit
Module OFF................... < 0.8Vdc
4. Suffix "N" to the Model Number with Negative Logic Remote ON/OFF.
Module ON .................... < 0.8Vdc
Module OFF................... Open Circuit
CHB75W
All Dimensions In Inches(mm)
Tolerance Inches: x.xx= ±0.02, x.xxx= ±0.010
Millimeters: x.x= ±0.5, x.xx= ±0.25
PIN CONNECTION
Pin Function
1
2
3
4
5
6
7
8
9
+Vin
ON/OFF
CASE
-Vin
-Vout
-Sense
Trim
+Sense
+Vout
E176177
®
US
CHB75W
37.5-75 WATT
4:1 INPUT RANGE
DC-DC CONVERTERS
S E R I E S
MODEL
NUMBER
CHB75W-24S33
CHB75W-24S05
CHB75W-24S12
CHB75W-24S15
CHB75W-24S24
CHB75W-48S33
CHB75W-48S05
CHB75W-48S12
CHB75W-48S15
CHB75W-48S24
9-36 VDC
18-75 VDC
Half-Brick
Half-Brick
0mA
0mA
3.3 VDC
5 VDC
12 VDC
15 VDC
24 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
24 VDC
15 A
15 A
6.25A
5 A
3.12 A
15 A
15 A
6.25 A
5 A
3.12 A
50 mA
50 mA
2611 mA
3811 mA
3765 mA
3720 mA
3720 mA
1289 mA
1883 mA
1860 mA
1838 mA
1835 mA
79
82
83
84
84
80
83
84
85
85
% EFF. SIZE
INPUT
VOLTAGE
OUTPUT CURRENT INPUT CURRENT
NO LOAD FULL LOAD
MIN. MAX.
OUTPUT
VOLTAGE
NOTE: 1. Nominal Input Voltage 24 or 48 VDC
.070(1.78)
.040(1.02)
.150(3.81)
.91(23.0)
HIGH SIGNAL HERE
DISABLE OUTPUT
ON/OFF (2)
-VIN (4) -SENSE (6)
TRIM UP
TRIM (7)
TRIM DOWN
+SENSE (8)
-SENSE (6)
+SENSE (8)
TRIM (7) 10K ohms
TRIMPOT
2.40
(61.00)
Ø0.08
(2.03)
2pl.
0.50
(12.70)
SIDE VIEW
0.18 min.
(4.60) 2*R1.50
Mounting Inserts
M3*0.5 Through 4pl.
2.00
(50.80)
1.40
(35.56) 0.60
(15.24)
4
3
2
1
5
6
7
8
9
1.90
(48.3)
2.28
(57.90)
BOTTOM VIEW
Ø0.04
(1.02)
7pl.
Remote On/Off Control
.070(1.78)
.040(1.02)
.150(3.81)
.91(23.0)
HIGH SIGNAL HERE
DISABLE OUTPUT
ON/OFF (2)
-VIN (4) -SENSE (6)
TRIM UP
TRIM (7)
TRIM DOWN
+SENSE (8)
-SENSE (6)
+SENSE (8)
TRIM (7) 10K ohms
TRIMPOT
2.40
(61.00)
Ø0.08
(2.03)
2pl.
0.50
(12.70)
SIDE VIEW
0.18 min.
(4.60) 2*R1.50
Mounting Inserts
M3*0.5 Through 4pl.
2.00
(50.80)
1.40
(35.56) 0.60
(15.24)
4
3
2
1
5
6
7
8
9
1.90
(48.3)
2.28
(57.90)
BOTTOM VIEW
Ø0.04
(1.02)
7pl.
External Output Trim
• 37.5-75W Isolated Output
• Half Brick Package
• 4 : 1 Input Range
• Regulated Outputs
Features
• Efficiency to 85%
• 300KHz Switching Frequency
• Five-Sided Shield Metal Case
• Continuous Short Circuit Protection
