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TPS274C65AS Datasheet(PDF) 16 Page - Texas Instruments

Part # TPS274C65AS
Description  TPS274C65xS 72-mΩ, Quad-Channel Smart High-Side Switch With SPI Interface and Diagnostics
PDF  87 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS274C65AS Datasheet(HTML) 16 Page - Texas Instruments

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9 Detailed Description
9.1 Overview
The TPS274C65 device is a quad channel 72-mΩ smart high-side switch intended for use for output ports
with protection for 24-V industrial systems. The device is designed to drive a variety of resistive, inductive
and capacitive loads. The device integrates various protection features including overload protection through
current limiting, thermal protection, short-circuit protection, and reverse current protection. For more details on
the protection features, refer to the Feature Description and Application Information sections of the document.
In addition, the device diagnostics features include a digital per-channel readout of output current, output voltage
and FET temperature. The high-accuracy load current sense allows for integration of load measurement features
that can enable predictive maintenance for the system by watching for leading indicators of load failures. The
device also integrates open load detection in on and off states to enable protection against wire breaks. In
addition, the device includes an open drain FLT pin output that indicates device fault states such as short to
GND, short to supply, overtemperature, and the other fault states discussed.
9.2 Functional Block Diagram
Gate drive
Config,
Flags and
Protection
Current Sense
Output
Clamp
SPI
Temp Sense
4
SPI
Interface
VIN/VOUT
MON
Charge Pump
MUX
LED
Module
VS
4
OUTx
GND
FLT
LEDx
VDD
RCBx
4
ADC
RCB
VOUT Sense
REG_EN
3.3 V
Reg
TPS274C65
SLVSFZ2B – APRIL 2023 – REVISED OCTOBER 2023
www.ti.com
16
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Copyright © 2023 Texas Instruments Incorporated
Product Folder Links: TPS274C65



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