SiP32419, SiP32429

www.vishay.com

Vishay Siliconix

S16-2135-Rev. E, 24-Oct-16

1

Document Number: 63939

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

28 V, 56 m

, Load Switch

with Programmable Current Limit and Slew Rate Control

OPERATION DESCRIPTION

SiP32419 and SiP32429 are load switches that integrate

multiple control features that simplify the design and

increase the reliability of the circuitry connected to the

switch. Both devices are 56 m

 switches designed to

operate in the 6 V to 28 V range. An internally generated gate

voltage operating range.

The SiP32419 and SiP32429 have a slew rate control circuit

that controls the switch turn-on time to the value set by an

external capacitor.

After soft start, an over-current protection circuit (OCP)

continuously monitors the current through the load switch,

and controls the switch impedance to limit the current to the

level programmed by an external resistor. If the over-current

condition persists for more than 7 ms, the switch shuts off

automatically. The SiP32419 and SiP32429 has an over

temperature protection circuit (OTP) which will shut the

switch off if the junction temperature exceeds about 135 °C.

The OTP circuit will release the switch when the temperature

has decreased by about 40 °C of hysteresis.

When an OCP or an OTP fault condition is detected the FLG

pin is pulled low. For the SiP32429, the fault flag will release

150 ms after the fault condition is cleared, and the switch

will automatically turn on at the programmed slew rate. For

the SiP32419, the switch will remain off and the fault flag will

remain on. The switch will be reset by toggling either control

signal on EN pin or the input power if it is not under over

temperature fault condition.

These devices feature a low voltage control logic interface

which can be controlled without the need for level shifting.

These devices also include a power good flag.

SiP32419 and SiP32429 are available in a space efficient

DFN10 3 mm x 3 mm package.

FEATURES

• 6 V to 28 V operation

• Programmable soft start

• Programmable current limit

• Over temperature protection

• ON resistance 56 m



•Fault flag

• Under voltage lockout: 4.8 V / 5.4 V (typ. / max.)

• Package: DFN10 3 mm x 3 mm

• SiP32429 will turn OFF the switch under fault conditions,

and re-try to turn on through the full soft start procedure

150 ms after the switch is off if there is no OT fault.

• SiP32419 will turn OFF the switch under fault conditions

and remain OFF. The switch can be reset by toggling

either signal on EN pin or the input power if it is not under

over temperature fault condition.

• Material categorization: for definitions of compliance

APPLICATIONS

• Personal computers

• Lighting

• Flat panel displays

• Game consoles

• Industrial

• Network communication

• Data storage

TYPICAL APPLICATION CIRCUIT

Fig. 1 - SiP32419, SiP32429 Typical Application Circuit

Available