1 Features

? Qualified for automotive applications

? AEC-Q100 qualified with the following results:

– Device temperature grade 1: –40°C to 125°C

ambient operating temperature range

– Device HBM ESD classification level H1C

– Device CDM ESD classification level C6

? Low supply current: 440 nA per channel

? Wide supply range: 1.8 V to 40 V

? Over-the-rail inputs: common-mode range extends

40 V above (V-) independent of (V+)

? Fail-safe: high impedance inputs with no supply

? Power-on-reset provides a known startup condition

? No phase reversal for overdriven inputs

? Reverse battery protection up to 40 V

? Push-pull output option (TLV185x-Q1)

? Open-drain output option (TLV186x-Q1)

2 Applications

? Telematics eCall

? Automotive head unit

? Instrument Cluster

? On-board (OBC) & wireless chargers

3 Description

The TLV185x-Q1 and TLV186x-Q1 are a family of

Automotive grade nanopower, 40 Volt comparators

with single, dual and quad channel options. The family

offers fail-safe (FS) inputs with push-pull and opendrain

output options. These features coupled with

nanopower operation over the wide supply range of

1.8 V to 40 V make this family well-suited for housekeeping

functions such as voltage and temperature

monitoring in low-power, always-on systems.

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

that ensures the output is in a known state until the

minimum supply voltage has been reached before the

output responds to the inputs, thus preventing false

outputs during system power-up and power-down.

The inputs have over-the-rail capability where both

inputs can exceed the supply voltage up to 40

V and still operate properly. This makes the

comparators well suited for both high and low supply

voltage systems without limiting the range of input

voltages that can be compared. Likewise, the internal

reverse battery protection feature prevents damage

to the comparator in the event of improper battery

installation to the supply pins.

The TLV185x-Q1 comparators have a push-pull

output stage where as the TLV186x-Q1 comparators

have an open-drain output stage, making it

appropriate for level translation.