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TLV9022-Q1 Datasheet(PDF) 9 Page - Texas Instruments

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Part # TLV9022-Q1
Description  TLV902x-Q1 and TLV903x-Q1 Precision Dual and Quad Automotive Comparators
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TLV9022-Q1 Datasheet(HTML) 9 Page - Texas Instruments

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OUT
+
-
IN+
IN-
Bias
Power-On
Reset
VCC
GND
VCC
SNAPBACK
ESD
CLAMPS
GND
GND
GND
Output
Control
GND
VCC
*
*
* Push-Pull
Version Only
Power
Clamp
9
TLV9022-Q1, TLV9032-Q1
www.ti.com
SNOSDA9 – JUNE 2020
Product Folder Links: TLV9022-Q1 TLV9032-Q1
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
7 Detailed Description
7.1 Overview
The TLV902x-Q1 and TLV903x-Q1 devices are dual-channel, micro-power comparators with push-pull and open-
drain outputs and low input offset voltage. Operating down to 1.65 V while only consuming only 15 µA per
channel, the TLV902x-Q1 and TLV903x-Q1 are ideally suited for portable, automotive and industrial applications.
An internal power-on reset circuit ensures that the output remains in a known state during power-up and power-
down while fail-safe inputs can tolerate input transients without damage or false outputs.
7.2 Functional Block Diagram
7.3 Feature Description
The TLV902x-Q1 (open-drain output) and TLV903x-Q1 (push-pull output) devices are micro-power comparators
that have low input offset voltages and are capable of operating at low voltages. The TLV90xx-Q1 family feature
a rail-to-rail input stage capable of operating up to 200 mV beyond the VCC power supply rails. The comparators
also feature push-pull and open-drain output stage options with internal 10 mV hysteresis and Power On Reset
for known start-up conditions.
7.4 Device Functional Modes
7.4.1 Outputs
7.4.1.1 TLV9022-Q1 and TLV9024-Q1 Open Drain Output
The TLV902x-Q1 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 0 V up to 5.5 V, independent of the
comparator supply voltage (VCC). 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 will help increase the rising edge risetime, but at the expense of increasing VOL and higher
power dissipation. The risetime will be dependant on the time constant of the total pull-up resistance and total
load capacitance. Large value pull-up resistors (>1 MΩ) will create an exponential rising edge due to the RC time
constant and increase the risetime.
Unused open drain outputs should be left floating, or can be tied to the GND pin if floating pins are not allowed.
While an individual output can typically sink up to 125 mA, the total combined current for all channels must be
less than 200 mA.


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