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TLV1821-Q1
  • TLV1821-Q1
  • TLV1821-Q1
  • TLV1821-Q1
  • TLV1821-Q1

TLV1821-Q1

ACTIVE

Automotive, single-channel micropower high-voltage comparator with open-drain output

Texas Instruments TLV1821-Q1 Product Info

1 April 2026 6

Parameters

Number of channels

1

Output type

Open-collector, Open-drain

Propagation delay time (µs)

0.42

Vs (max) (V)

40

Vs (min) (V)

2.4

Rating

Automotive

Features

POR

Iq per channel (typ) (mA)

0.005

Vos (offset voltage at 25°C) (max) (mV)

4

Rail-to-rail

In

Operating temperature range (°C)

-40 to 125

Input bias current (±) (max) (nA)

1.2

VICR (max) (V)

40.2

VICR (min) (V)

-0.2

Package

SOT-23 (DBV)-5-8.12 mm² 2.9 x 2.8

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 2
    • Device CDM ESD classification level C3
  • Wide 2.4V to 40V supply range
  • Low quiescent current 5µA per channel
  • Rail-to-Rail input
  • Power-On Reset (POR) for known start-up
  • Low input offset voltage 500µV
  • 420ns typical propagation delay
  • Push-pull output option (TLV181x-Q1)
  • Open-drain output option (TLV182x-Q1)
  • Functional Safety-Capable
  • 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 2
    • Device CDM ESD classification level C3
  • Wide 2.4V to 40V supply range
  • Low quiescent current 5µA per channel
  • Rail-to-Rail input
  • Power-On Reset (POR) for known start-up
  • Low input offset voltage 500µV
  • 420ns typical propagation delay
  • Push-pull output option (TLV181x-Q1)
  • Open-drain output option (TLV182x-Q1)
  • Functional Safety-Capable

Description

The TLV181x-Q1 and TLV182x-Q1 are a family of Automotive grade 40 volt single, dual and quad channel comparators with multiple output options. The family offers rail-to-rail inputs with push-pull or open-drain output options. The family has an excellent speed-to-power combination with a propagation delay of 420ns with a full supply voltage range of 2.4V to 40V with a quiescent supply current of only 5µA per channel.

All devices include a Power-On Reset (POR) feature. This makes sure 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 TLV181x-Q1 comparators have a push-pull output stage capable of sinking and sourcing milliamps of current when controlling an LED or driving a capacitive load such as a MOSFET gate.

The TLV182x-Q1 comparators have an open-drain output stage that can be pulled up to 40V independent of comparator supply voltage.

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