TLV9032DDFR.A datasheet(21/85 Pages) TI2

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6 Detailed Description

6.1 Overview

The TLV902x and TLV903x devices are precision, micro-power comparators with fail-safe inputs and push-pull

and open-drain output options. Operating down to 1.65V while only consuming only 16µA per channel, the

TLV902x and TLV903x are designed for portable, automotive and industrial applications.

6.2 Functional Block Diagram

OUT

IN+

IN-

Bias

V+

V-

V+

SNAPBACK

ESD

CLAMPS

V-

Output

Control

V-

V+

* Push-Pull

Version Only

Power

Clamp

6.3 Feature Description

The TLV902x (open-drain output) and TLV903x (push-pull output) devices are micro-power comparators that

have low input offset voltages and are capable of operating at low voltages. The TLV90xx family feature a

rail-to-rail input stage capable of operating up to 200mV beyond the power supply rails. The comparators also

feature push-pull and open-drain output stage options.

6.4 Device Functional Modes

6.4.1 Outputs

6.4.1.1 TLV9022 and TLV9024 Open Drain Output

The TLV902x features an open-drain (also commonly called open collector) sinking-only output stage enabling

the output logic levels to be pulled up to an external voltage from 0V up to 5.5V, independent of the comparator

supply voltage (VS). The open-drain output also allows logical OR'ing of multiple open drain outputs and

logic level translation. TI recommends setting the pull-up resistor current to between 100uA and 1mA. Lower

pull-up resistor values helps increase the rising edge risetime, but at the expense of increasing VOL and higher

power dissipation. The risetime is dependant on the time constant of the total pull-up resistance and total

load capacitance. Large value pull-up resistors (>1MΩ) creates an exponential rising edge due to the RC time

constant and increases the risetime.

Unused open drain outputs must be left floating, or can be tied to the V- pin if floating pins are not allowed. While

an individual output can typically sink up to 125mA, the total combined current for all channels must be less than

200mA.

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TLV9020, TLV9021, TLV9022, TLV9024, TLV9030, TLV9031, TLV9032, TLV9034

SNOSDA3H – JUNE 2020 – REVISED NOVEMBER 2025

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Product Folder Links: TLV9020 TLV9021 TLV9022 TLV9024 TLV9030 TLV9031 TLV9032 TLV9034

TLV9032DDFR.A 数据表(PDF) 21 Page - Texas Instruments

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