TPS3700DDCR2集成电路（IC）的比较器规格书PDF中文资料

TPS3700DDCR2属于集成电路（IC）的比较器。由德州仪器制造生产的TPS3700DDCR2比较器逻辑比较器系列产品用于根据以数字格式表示的信息比较结果来生成输出；身份型比较器指示两个输入是否相同，幅度型比较器还指示两个输入不相同时哪个较大。它们不同于比较两个模拟输入幅度的器件，后者称为线性比较器且单独分类。

1 Features

1• Wide supply voltage range: 1.8 V to 18 V

• Adjustable threshold: down to 400 mV

• High threshold accuracy:

– 1.0% over temperature

– 0.25% (Typical)

• Low quiescent current: 5.5 μA (Typical)

• Open-drain outputs for overvoltage and

undervoltage detection

• Internal hysteresis: 5.5 mV (Typ)

• Temperature range: –40°C to 125°C

• Packages:

– SOT-6

– 1.5-mm × 1.5-mm WSON-6

2 Applications

• Industrial control systems

• Automotive systems

• Embedded computing modules

• DSP, microcontroller, or microprocessor

applications

• Notebook and desktop computers

• Portable- and battery-powered products

• FPGA and ASIC applications

3 Description

The TPS3700 wide-supply window voltage detector

operates over a 1.8-V to 18-V range. The device has

two high-accuracy comparators with an internal 400-

mV reference and two open-drain outputs rated to 18

V for over- and undervoltage detection. The TPS3700

can be used as a window voltage detector or as two

independent voltage monitors; the monitored voltage

can be set with the use of external resistors.

OUTA is driven low when the voltage at INA+ drops

below (VITP – VHYS), and goes high when the voltage

returns above the respective threshold (VITP). OUTB

is driven low when the voltage at INB– rises above

VITP, and goes high when the voltage drops below the

respective threshold (VITP – VHYS). Both comparators

in the TPS3700 include built-in hysteresis for filtering

to reject brief glitches, thereby ensuring stable output

operation without false triggering.

The TPS3700 is available in a SOT-6 and a 1.5-mm

× 1.5-mm WSON-6 package and is specified over the

junction temperature range of –40°C to 125°C.