TPS3780ADBVT.B中文资料德州仪器数据手册PDF规格书

1 Features

1• Two-Channel Detectors in Small Packages

• High-Accuracy Threshold and Hysteresis: 1.0%

• Low Quiescent Current: 2 μA (typ)

• Adjustable Detection Voltage Down to 1.2 V

• Multiple Hysteresis Options:

– 0.5%, 1%, 5%, and 10%

• Temperature Range: –40°C to 125°C

• Push-Pull (TPS3779) and Open-Drain (TPS3780)

Output Options

• Available in μSON and SOT23 Packages

2 Applications

• DSP, Microcontroller, and Microprocessor

Applications

• Portable Medical Devices

• Building Automation

• Set-Top Boxes

• Solid-State Drives

• Notebook and Desktop Computers

• Portable and Battery-Powered Products

• Power-Supply Sequencing Applications

3 Description

The TPS3779 and TPS3780 are a family of high-

accuracy, two-channel voltage detectors with low- power and small solution size. The SENSE1 and

SENSE2 inputs include hysteresis to reject brief

glitches, ensuring stable output operation without

false triggering. This family offers different factory-set hysteresis options of 0.5%, 1%, 5%, or 10%.

The TPS3779 and TPS3780 have adjustable SENSE inputs that can be configured by an external resistor

divider. When the voltage at the SENSE1 or SENSE2

input goes below the falling threshold, OUT1 or OUT2

is driven low, respectively. When SENSE1 or

SENSE2 rises above the rising threshold, OUT1 or

OUT2 goes high, respectively.

The devices have a very low quiescent current of

2 μA (typical) and provide a precise, space-conscious

solution for voltage detection suitable for low-power

system-monitoring and portable applications. The

TPS3779 and TPS3780 operate from 1.5 V to 6.5 V,

over the –40°C to 125°C temperature range.