TPS3701DDCR模拟比较器 36V原装德州TI

1 Features

1• Wide Supply Voltage Range: 1.8 V to 36 V

• Adjustable Threshold: Down to 400 mV

• Open-Drain Outputs for Over- and Undervoltage

Detection

• Low Quiescent Current: 7 μA (Typical)

• High Threshold Accuracy:

– 0.75% Over Temperature

– 0.25% (Typical)

• Internal Hysteresis: 5.5 mV (Typical)

• Temperature Range: –40°C to 125°C

• Package:

– SOT-6

2 Applications

• Industrial Control Systems

• Embedded Computing Modules

• DSPs, Microcontrollers, and Microprocessors

• Notebook and Desktop Computers

• Portable- and Battery-Powered Products

• FPGA and ASIC Systems

3 Description

The TPS3701 wide-supply voltage window supervisor

operates over a 1.8-V to 36-V range. The device has

two precision comparators with an internal 400-mV

reference and two open-drain outputs (OUTA and

OUTB) rated to 25 V for over- and undervoltage

detection. Use the TPS3701 as a window supervisor

or as two independent voltage monitors; set the

monitored voltage with the use of external resistors.

OUTA is driven low when the voltage at the INA pin

drops below the negative threshold, and goes high

when the voltage returns above the positive

threshold. OUTB is driven low when the voltage at

the INB pin rises above the positive threshold, and

goes high when the voltage drops below the negative

threshold. Both comparators in the TPS3701 include

built-in hysteresis for noise rejection, thereby

ensuring stable output operation without false

triggering.

TPS3701DDCRTPS3701DDCRTPS3701DDCRTPS3701DDCR

1功能

1·宽电源电压范围:1.8 V ~ 36v

•可调阈值:可调至400mv

•对于过压和欠压的开路输出

检测

•低静态电流:7μA(典型值)

•高阈值精度:

- 0.75%的温度

- 0.25%(典型值)

•内部滞回:5.5 mV(典型)

•温度范围:-40°C到125°C

•包:

——SOT-6

2应用程序

•工业控制系统

•嵌入式计算模块

•DSPs，微控制器和微处理器

•笔记本和台式电脑

•便携式和电池供电的产品

•FPGA和ASIC系统

3描述

TPS3701宽电源电压窗主管

操作范围从1.8 v到36 v。设备

两个精度比较器与内部400-mV

引用和两个开漏输出(OUTA和

超过或低于电压的额定电压为25v

检测。使用TPS3701作为窗口管理器

或两个独立的电压监视器;设置

使用外部电阻监控电压。

当INA插脚处的电压较低时，OUTA被驱动

下降到负阈值以下，然后上升

当电压回到正电位以上时

阈值。当电压为

INB引脚高于正阈值，且

当电压降至负值时就会升高

阈值。TPS3701中的两个比较器都包括

因此，内置的抗噪声滞后

确保稳定的输出运行，无错误

触发