shunt regulator. BR431 Datasheet

BR431 regulator. Datasheet pdf. Equivalent

BR431 Datasheet
Recommendation BR431 Datasheet
Part BR431
Description Precision adjustable shunt regulator
Feature BR431; BR431 Rev.D Oct.-2015 / Descriptions TO-92 。 Precision adjustable shunt regulator in a TO-92 Plast.
Manufacture BLUE ROCKET ELECTRONICS
Datasheet
Download BR431 Datasheet




BLUE ROCKET ELECTRONICS BR431
BR431
Rev.D Oct.-2015
描述 / Descriptions
TO-92 塑封封装精密可调基准电源。
Precision adjustable shunt regulator in a TO-92 Plastic Package.
DATA SHEET
特征 / Features
精确参照电压 2.500V;允许电压误差为 0.4%,0.8%;阴极电流能力为 1.0mA~100mA;快速导通;可调节
输出电压为 VO=Vref~37V;阴极工作电流低(典型值:400μA);动态输出阻抗低(典型值:0.15Ω)。
Precise reference voltage to 2.500V;guaranteed 0.4%,0.8% reference voltage Tolerance; sink
current capability,1.0mA100mA;quick turn-on; adjustable Output voltage, VO=Vref37V;low
operational cathode current,400μA typical; 0.15typical output impedance.
用途 / Applications
用于线性调整器,可调节电源和开关电源。
Linear regulators, adjustable power supply, switching power supply.
内部等效电路 / Equivalent Circuit
引脚排列 / Pinning
1 23
PIN1K
PIN 2A
PIN 3R
印章代码 / Marking
见印章说明。See Marking Instructions
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BLUE ROCKET ELECTRONICS BR431
BR431
Rev.D Oct.-2015
DATA SHEET
极限参数 / Absolute Maximum Ratings(Ta=25)
参数
Parameter
Cathode to Anode Voltage
Cathode Current Range, Continuous
Reference Input Current Range, Continuous
Power Dissipation
Operating Ambient Temperature
Junction Temperature
Storage Temperature Range

符号
Symbol
VKA
IK
IREF
PD
Tamb
Tj
Tstg
电性能参数 / Electrical Characteristics(Ta=25)
数值
Rating
37
-100+150
0.05+10
770
-40125
160
-65150
单位
Unit
V
mA
mA
mW
参数
Parameter
Reference Input voltage
Deviation of Reference
Input Voltage Over-
Temperature
Ratio of Change in
Reference Input Voltage
to the Change in Cathode
Voltage
Reference Input current
Deviation of Reference
Input Current Over Full
Temperature Range
Minimum Cathode Current
for Regulation
Off-state cathode current
Dynamic impedance
符号
Symbol
VREF
VREF
/T
VREF
/VKA
IREF
IREF/T
IK(min)
IK(off)
|ZKA|
测试条件
Test Conditions
VKA=VREF
IK=10mA(A=0.4%)
VKA=VREF
IK=10mA(B=0.8%)
VKA=VREF IK=10mA
TA=-2585
IK=10mA
VKA =10V to VREF
IK=10mA
VKA =36V to 10V
IK=10mA R1=10K
R2=open
IK=10mA R1=10K,
R2=open
TA=-40125
VKA=VREF
VKA=36V
VREF=0V
VKA=VREF f1.0KHz
IK=1mA to 100mA
最小值
Min
2.490
典型值
Typ
2.500
最大值
Max
2.510
2.480 2.500 2.520
4.5 17
-1
-0.45
1.0
-2.7
-2.0
4.0
0.4 1.2
0.4 1.0
0.05 1.0
0.15 0.5
单位
Unit
V
V
mV
mV/V
mV/V
μA
μA
mA
μA
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BLUE ROCKET ELECTRONICS BR431
BR431
Rev.D Oct.-2015
测试电路图&典型应用图 Test circuits&Typical Application
BLOCK DIAGRAM:
BR431
DATA SHEET
TEST CIRCUITS:
BR431
BR431
BR431
Test Circuit For VKA=VREF
TYPICAL APPLICATION:
Test Circuit for VKAVREF
Test Circuit For IKA(OFF)
Shutdown Regulator
IN Io=VREF/RCL+IKA RCL
OUT
Constant Current Source
BR431
http://www.fsbrec.com
Higher-current Shunt
Series Pass Regulator
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