SIP32434

www.vishay.com

Vishay Siliconix

S22-0384-Rev. B, 02-May-2022

1

Document Number: 63147

For technical questions, contact: powerictechsupport@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

6 A, 33 m

, 2.8 V to 23 V,

eFuse With Programmable Current Limit and OVP

DESCRIPTION

The SIP32434A and SIP32434B are single-channel eFuses

that integrate multiple control and protection features,

which provide increased controllability and reliability, with

simplified designs and minimal external components.

The SIP32434A and SIP32434B protect both power sources

and downstream circuitry connected to the switch from

overloads, short circuits, voltage surges, and excessive

inrush currents.

The output current limit can be set by a single external

resistor. VIN overvoltage protection and undervoltage

lockout threshold levels can be set with an external resistor

network. VIN inrush current requirements can be set with a

single external soft start capacitor.

Upon switch-off due to latchable faults, the SIP32434A will

latch the power switch off and the PGD will remain low. The

switch can restart by resetting the EN or VIN. The SIP32434B

will auto retry if there is no OTP or OVP fault. The retry delay

time is 32 times the soft start time set by the CSS.

The switch is characterized for operation over a junction

temperature range of -40 °C to +125 °C.

APPLICATIONS

•Industrial

• IoT and smart home

• Medical and healthcare equipment

• Network and telecom equipment

• Data storage, solid state drives

•Computing

•PLC

•Lighting

• Gaming consoles

FEATURES

• 2.8 V to 23 V operation voltage

• 28 V max. voltage rating with 24 V internal OVP

• 33 m

 typical switch resistance

• 0.5 A to 6 A current limit setting range

• Current limit accuracy of ± 7 %

• Fast short circuit protection response

• OCP triggering without overhead current

• Programmable turn-on slew rate

• Turn-on delay: 190 μs

• Adjustable OVP (and fixed 24 V OVP at VIN)

•Adjustable UVLO

• Over-temperature protection

•ESD / HBM: > 2 kV

• ESD / CDM: > 750 V

• PGD: power good indicator output

• Compact TDFN10 3 mm x 3 mm package (for AEC-Q100

qualified

automotive

applications,

please

refer

to

SIPQ32434)

• Active reverse blocking feature available with SIP32433

• Material categorization: for definitions of compliance

please see www.vishay.com/doc?99912

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TYPICAL APPLICATION CIRCUIT

Fig. 1 - Application Circuit

EN / UVLO

GND

V

OUT

V

IN

OVP

SS

PGD

C

IN

R1

R2

R3

Power source

SIP32434

C

OUT

C

SS

I

LIM / IMON

5 V

PGD bias

I

OUT report

R

SET