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TPS37-Q1 Datasheet(PDF) 26 Page - Texas Instruments

Part # TPS37-Q1
Description  TPS37-Q1 Wide VIN 65 V Dual Channel Overvoltage & Undervoltage (OV & UV) Detector with Programmable Sense and Reset Delay Function for Automotive
PDF  47 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

TPS37-Q1 Datasheet(HTML) 26 Page - Texas Instruments

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9 Device Functional Modes
Table 9-1. Undervoltage Detect Functional Mode Truth Table
DESCRIPTION
SENSE
CTR (1) / MR PIN
VDD PIN
OUTPUT (2)
(RESET PIN)
PREVIOUS
CONDITION
CURRENT CONDITION
Normal Operation
SENSE > VITN(UV)
SENSE > VITN(UV)
Open or capacitor
connected
VDD > VDD(MIN)
High
Undervoltage
Detection
SENSE > VITN(UV)
SENSE < VITN(UV)
Open or capacitor
connected
VDD > VDD(MIN)
Low
Undervoltage
Detection
SENSE < VITN(UV)
SENSE > VITN(UV)
Open or capacitor
connected
VDD > VDD(MIN)
Low
Normal Operation
SENSE < VITN(UV)
SENSE > VITN(UV) + HYS
Open or capacitor
connected
VDD > VDD(MIN)
High
Manual Reset
SENSE > VITN(UV)
SENSE > VITN(UV)
Low
VDD > VDD(MIN)
Low
UVLO Engaged
SENSE > VITN(UV)
SENSE > VITN(UV)
Open or capacitor
connected
VPOR < VDD < VDD(MIN)
Low
Below VPOR,
Undefined Output
SENSE > VITN(UV)
SENSE > VITN(UV)
Open or capacitor
connected
VDD < VPOR
Undefined
(1)
Reset time delay is ignored in the truth table.
(2)
Open-drain active low output requires an external pull-up resistor to a pull-up voltage.
Table 9-2. Overvoltage Detect Functional Mode Truth Table
DESCRIPTION
SENSE
CTR (1) / MR PIN
VDD PIN
OUTPUT (2)
(RESET PIN)
PREVIOUS
CONDITION
CURRENT CONDITION
Normal Operation
SENSE < VITN(OV)
SENSE < VITN(OV)
Open or capacitor
connected
VDD > VDD(MIN)
High
Overvoltage
Detection
SENSE < VITN(OV)
SENSE > VITN(OV)
Open or capacitor
connected
VDD > VDD(MIN)
Low
Overvoltage
Detection
SENSE > VITN(OV)
SENSE < VITN(OV)
Open or capacitor
connected
VDD > VDD(MIN)
Low
Normal Operation
SENSE > VITN(OV)
SENSE < VITN(OV) - HYS
Open or capacitor
connected
VDD > VDD(MIN)
High
Manual Reset
SENSE < VITN(OV)
SENSE < VITN(OV)
Low
VDD > VDD(MIN)
Low
UVLO Engaged
SENSE < VITN(OV)
SENSE < VITN(OV)
Open or capacitor
connected
VPOR < VDD < UVLO
Low
Below VPOR,
Undefined Output
SENSE < VITN(OV)
SENSE < VITN(OV)
Open or capacitor
connected
VDD < VPOR
Undefined
(1)
Reset time delay is ignored in the truth table.
(2)
Open-drain active low output requires an external pull-up resistor to a pull-up voltage.
TPS37-Q1
SNVSBD9E – AUGUST 2020 – REVISED AUGUST 2023
www.ti.com
26
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Product Folder Links: TPS37-Q1



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