参数资料
型号: SPX431AM1-L/TR
厂商: Exar Corporation
文件页数: 6/13页
文件大小: 0K
描述: IC VREF SHUNT PREC ADJ SOT-89-3
标准包装: 1
基准类型: 旁路,可调节,精度
输出电压: 2.503 V ~ 36 V
容差: ±0.5%
温度系数: 30ppm/°C
输入电压: 最高 20V
通道数: 1
电流 - 阴极: 1mA
电流 - 输出: 150mA
工作温度: 0°C ~ 105°C
安装类型: 表面贴装
封装/外壳: TO-243AA
供应商设备封装: SOT-89-3
包装: 标准包装
其它名称: 1016-1249-6
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
100
150 W
I K
R
10
T A = 25 °C
I K =1 to 100mA
10k?
C L
1.0
0.1
0.01
1K
10K
100K
1M
10M
f Frequency (Hz)
Test Circuit for Stability
Dynamic Output Impedance T A = 25°C,
I K =   to  00mA
100
V IN
R3
V OUT
10
1
V KA = 36V
V REF = 0V
R1
0.1%
0.1
0.01
V REF
R2
0.1%
SPX431A,B,C
-50
0
50
100
150
T A Ambient Temperature (°C)
Off-State Leakage
V IN
I SINK
Shunt Regulator V OUT = (1+R1/R2)V REF
V OUT
R2
Q1
Opto Isolator
R3
R1
0.1%
Isolated
Feedback
R3 sets feedback gain,
C1 provides feedback
compensation
SPX431A,B,C
R1
0.1%
C2
+
C1
SPX431A,B,C
R2
0.1%
V OUT RTN
Constant Current, Sink, I SINK = V REF /R1
Reference Amplifier for Isolated Feedback in Off-Line
DC-DC Converters
Rev F: Nov 2 -06
SPX43 A,B,C Precision Adjustable Shunt Regulator
6
? 2006 Sipex Corporation
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