CQB125系列
输入电压:36-75Vdc
输出电压:1,1.2,1.5,1.8,2.5,3.3,5,12Vdc
输出功率:40-125W
模块尺寸:2.3X1.45X0.42寸
40-125 WATT 1/4 BRICK
DC-DC CONVERTERS
• 40-125W Isolated Output
• Quarter Brick Package
• Regulated Outputs
• Efficiency to 92%
• 1500VDC Isolation
Features
• Input Under Voltage Protection
• Over Current Protection
• Over Temperature Protection
• Remote On/Off Control
常用型号;
CQB125-48S1V0
CQB125-48S1V2
CQB125-48S1V5
CQB125-48S1V8
CQB125-48S2V5
CQB125-48S3V3
CQB125-48S05
CQB125-48S12
Specifications
INPUT SPECIFICATIONS:
Input Voltage Range....………................48V……….........................36 – 75V
Under voltage lockout ……..…............. power up .........................35V typ.
power down …............... 33V typ.
Positive Logic Remote on/off Control （see Note4 & 5）
Input Filter ...........…..……………….……….......................................... .PI Type
OUTPUT SPECIFICATIONS:
Voltage Accuracy…………………...……………...........................±1. max.
Transient Response :25% Step Load Change..............................<500u sec.
Ripple and Noise, 20MHz BW …….......…………......... .......100mV p-p max.
5V / 12Vout…......... .............120mV p-p max.
Temperature Coefficient....................….…………….............±0.03%/C max.
Short Circuit Protection...................…......……............Continuous / Hiccup
Line Regulation1..….………...………………..................................±.0.2% max.
Load Regulation2………………….........………..............................±0.5% max.
Over Voltage Protection Trip Range, %Vo nom………..............115%-14
External Trim Adj. Range6……………….…………..............….................±1
Current Limit………………………................... 11 - 15 Nominal Output
GENERAL SPECIFICATIONS:
Efficiency...........................................………..…………....................See Table
Isolation Voltage...................................……..………...............1500 VDC min.
Isolation Resistance .....................…….………….……….........107
Ohms min.
Switching Frequency .............................……..............................200KHz typ.
3.3V/2.5Vout..……..............................250KHz typ.
5V/12Vout..…….............................300KHz typ.
Over Temperature Protection .....……...........................................120˚C typ.
Operating Ambient Temperature Range...…..…...…......... -40˚C to +85˚C
Power Derating Curve........................................Refer to Application Note.
Storage Temperature Range ...…............…….....…........... -40˚C to +125˚C
Dimensions.........................……......………………... 2.30 x 1.45 x 0.42 inches
（58.4 x 36.8 x 10.6 mm）
Weight.........................................................................................................40g
NOTE:
1. Measured From High Line to Low Line
2. Measured From Full Load to Zero Load
3. The output ripple and noise is measured with 10uF tantalum and 1uF
Ceramic capacitor across output.
4. Logic Compatibility ……………... Open Collector ref to -Input
Module ON ………. Open Circuit
Module OFF ……….. < 1.2Vdc
5. Suffix "N" to the Model Number with Negative Logic Remote ON/OFF
Module ON ………. < 1.2Vdc
Module OFF ……….. Open Circuit
6. Trim-up.................Connect a Resistor Between the Trim Pin and+Sense
Trim-Down.............Connect a Resistor Between the Trim Pin and-Sense
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