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参数资料
| 型号： | TS431IYRM |
| 厂商： | Taiwan Semiconductor Co., Ltd. |
| 元件分类： | 稳压器 |
| 英文描述： | Adjustable Precision Shunt Regulator |
| 中文描述： | 可调节精密并联稳压器 |
| 文件页数： | 3/13页 |
| 文件大小： | 639K |
| 代理商： | TS431IYRM |
TS431I
Adjustable Precision Shunt Regulator
3/13
Version: A07
Test Circuits
Figure 1: Vka = Vref
Figure 2: Vka > Vref
Figure 3: Off-State Current
Additional Information – Stability
When The TS431I/431AI/431BI is used as a shunt regulator, there are two options for selection of C
L
, are recommended for optional
stability:
A) No load capacitance across the device, decouple at the load.
B) Large capacitance across the device, optional decoupling at the load.
The reason for this is that TS431I/431AI/431BI exhibits instability with capacitances in the range of 10nF to 1uF (approx.) at light
cathode current up to 3mA (typ). The device is less stable the lower the cathode voltage has been set for. Therefore while the
device will be perfectly stable operating at a cathode current of 10mA (approx.) with a 0.1uF capacitor across it, it will oscillate
transiently during start up as the cathode current passes through the instability region. Select a very low capacitance, or alternatively
a high capacitance (10uF) will avoid this issue altogether. Since the user will probably wish to have local decoupling at the load
anyway, the most cost effective method is to use no capacitance at all directly across the device. PCB trace/via resistance and
inductance prevent the local load decoupling from causing the oscillation during the transient start up phase.
Note: if the TS431I/431AI/431BI is located right at the load, so the load decoupling capacitor is directly across it, then this capacitor
will have to be
≤
1nF or
≥
10uF.
Applications Examples
Figure 4: Voltage Monitor
Figure 5: Output Control for Three Terminal
Fixed Regulator
相关PDF资料 |
PDF描述 |
|---|---|
| TS431ITB0 | Adjustable Precision Shunt Regulator |
| TS431 | LOW VOLTAGE ADJUSTABLE SHUNT REFERENCE |
| TS431AI | LOW VOLTAGE ADJUSTABLE SHUNT REFERENCE |
| TS431I | LOW VOLTAGE ADJUSTABLE SHUNT REFERENCE |
| TS432AIA5RF | Adjustable Precision Shunt Regulator |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TS431IZ | 功能描述:基准电压& 基准电流 1.24-6V Adjust Shunt RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| TS431IZ-AP | 功能描述:基准电压& 基准电流 1.24-6V Adjust Shunt RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| TS431IZT | 功能描述:基准电压& 基准电流 1.24-6V Adjust Shunt RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| TS432 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:1.24 V adjustable shunt voltage reference |
| TS432_08 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:1.24 V adjustable shunt voltage reference |
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