TPS274C65CP 72mΩ Quad-Channel Smart High-Side Switch With Diagnostics

1 Features

• Quad-channel 72mΩ RON smart high-side switch

– Low RON ensures low power dissipation for up

to 2A DC loads

• Improve system level reliability through adjustable

current limiting

– TPS274C65CP: Current limit set-point from

250mA to 1.9A

– TPS274C65CPH: Current limit set-point from

290mA to 2.26A

• Drive inductive, capacitive, and resistive loads

– Adjustable current limit for capacitor charging

– Integrated output clamp to demagnetize

inductive loads

• Robust output protection

– Integrated thermal shutdown

– Protection against short-to-ground events

– Configurable fault handling

• Diagnostic features enable improved module

intelligence

– Wire-break detection

– Short-to-supply detection

• Small 6mm × 6mm leadless package

2 Applications

• Industrial PLC systems

– Digital output modules

– IOLink master ports

– Sensor supplies

3 Description

The TPS274C65CP device is a quad-channel smart

high-side switch designed to meet the requirements

of industrial control systems. The low 72mΩ RDSON

minimizes device power dissipation even when

providing large output load current. The device

integrates protection and diagnostic features to

ensure system protection even during harmful events

like short circuits or load failures. The device protects

against faults through a reliable current limit which is

adjustable from 300mA to 2.26A to provide protection

regardless of output load current.

The TPS274C65CP has an internal regulator to

create voltage for internal rails. Additionally, a VDD

pin is provided to allow the use of external VDD

supply which must be derived from the VS to

reduce the power dissipation. The comprehensive

fault reporting include a dedicated VS_FLT pin to

indicate the VS undervoltage, and separate fault pin

STx to indicate the faults happening in each channel.

The TPS274C65CP is available in a small 6mm ×

6mm VQFN package with 0.5mm pin pitch, which

minimizes design PCB footprint.

Package Information

PART NUMBER

PACKAGE(1)

PACKAGE SIZE(2)

TPS274C65CP

RHA (VQFN, 40)

6.00mm × 6.00mm

TPS274C65CPH

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable.

Gate drive

Output

Clamp

Charge Pump

VS

4

OUTx

GND

VDD

REG_EN

3.3 V

Reg

Current Limit

Thermal Shutdown

Open-load

detection

Internal Power

Supply

Fault Indication

STx

ENx

VS_FLT

ILIMCFG

DIAG_EN

LATCH

24V

DC/DC

Converter

Optional

5 V / 3.3 V

MCU

Load

If an external supply is used for the VDD, it has to be

derived from the same VS as the figure shows here

Typical Application Schematic

TPS274C65CP

SLVSH35A – OCTOBER 2023 – REVISED FEBRUARY 2024

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.