TPS3700DDCT屬于集成電路（IC）的比較器。由美國德州儀器公司制造生產的TPS3700DDCT比較器邏輯比較器系列產品用于根據以數字格式表示的信息比較結果來生成輸出；身份型比較器指示兩個輸入是否相同，幅度型比較器還指示兩個輸入不相同時哪個較大。它們不同于比較兩個模擬輸入幅度的器件，后者稱為線性比較器且單獨分類。

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.