TPS274C65ASH datasheet(21/90 Pages) TI1

21 / 90 page

• Multiple slave devices in series (daisy chain) connection limited only by the SPI write frame speed

requirements.

TPS274C65

SDI

SCLK

SDO

nSCS

SPI

Communication

TPS274C65

SCLK

SDI

SDO

nSCS

SPI

Communication

Controller

SPI

Communication

MCLK

Figure 8-6. Daisy Chain Configuration

SPI mode controls the following functions.

• ON/OFF control of the switches.

• Disable the diagnostics to reduce the quiescent current consumption.

• Select the channel(s) and measurements for VOUT, IOUT and TEMP.

• Fault management (clearing faults and action/response on fault).

• Watchdog timer - the device will generate an error if the SW_STATE register has not been successfully

written into within the watchdog timeout period. The customer can disable the watchdog feature using the

WD_EN bit (default is off).

• The current limit protection threshold

Table 8-1. SPI IC Address Configuration

Resistor Value(kΩ)

ADDCFG Code

13.3

000

17.8

001

23.7

010

31.6

011

44.2

100

101

78.7

110

111

Note: Please use resistor with <1% tolerance.

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TPS274C65

SLVSFZ2C – APRIL 2023 – REVISED FEBRUARY 2024

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TPS274C65ASH Datasheet(PDF) 21 Page - Texas Instruments

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