TLV1921中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書

1 Features

? Wide supply range: 3.3V to 65V

? Fail-safe inputs up to 65V

? Open-drain output up to 65V

? 2.5V, 1.5%, 100ppm maximum voltage reference

? Reference output can drive up to 1mA

? 3mV input offset voltage

? 900ns propagation delay

? Power-on-reset provides a known startup condition

? Low supply current: 8uA per channel

? Pin spacings meet IPC2221A creepage

requirements (SOIC).

? Temperature range: -40°C to +125°C

2 Applications

? Motor drives

? Appliances

? Grid infrastructure

? Factory automation and control

? Traction inverter

3 Description

The TLV1921 and TLV1922 are a family of single

and dual 65V comparators with an integrated 2.5V

reference that is externally accessible. The inputs are

fail-safe tolerant up to 65V independent of the supply

voltage. This makes the comparators well suited for

12V and 24V industrial systems where operating

voltage compliance to 65V is required. Likewise, the

fail-safe inputs eliminate power supply sequencing

concerns.

The single and dual channel options have an

externally available 2.5V reference output and

undedicated comparator inputs allowing for inverting

and non-inverting configurations. The dual also has

an externally available 2.5V refernce output which

is internally connected to the non-inverting input of

the first comparator. The dual configuration enables

window comparator applications or dual channel overvoltage

detection.

All devices include a Power-On Reset (POR) feature

that sets the output to a known state until the

minimum supply voltage has been reached and the

output responds to the inputs, thus preventing false

outputs during system power-up and power-down.

The Family of comparators have an open-drain output

stage that is 65V compliant.