PR4101 datasheet(1/24 Pages) PREMA

Part #	PR4101

Description	High Power LED Buck Driver

PDF	24 Pages

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Manufacturer	PREMA [PREMA Semiconductor.]

Direct Link	https://www.prema.com/

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LED Driver PR4101

High Power LED Buck Driver

The PR4101 is a LED buck driver for driving one

or several high power LEDs in series. The

supply voltage can be up to 40 V, with an

output current of more than 1 A using an

external

n-channel

MOSFET

switching

transistor. The PR4101A with additional PWM and

power down input is delivered SOP14 packaged,

while the PR4101B is offered SO8 packaged.

FEATURES

• Adjustable output current of several amps

• Supply voltage up to 40 V

• Dimming with phase-cut dimmer

• Brightness control with PWM (PR4101A only)

• Output current temperature compensation

• Delayed start possible (PR4101A only)

• Over temperature protection

• Frequency spreading for improved EMI

• Low standby current of < 35 µA

• Under voltage lockout

APPLICATIONS

• Halogen lamp or filament bulb replacement by

LEDs

• General illumination

• Warning lights

• Automotive lighting

• Indicator signs

• LCD backlighting

ABSOLUTE MAXIMUM RATINGS

Parameter

Min

Max Units

VCC, VDI (no damage)

-0.3

50

[V]

All other pins

14

[V]

Operating Chip

Temperature Range (over

temperature protection)

-20

125

[°C]

Storage Temperature

Range

-55

150

[°C]

Electrostatic Discharge

(ESD) Protection

2

[kV]

TYPICAL APPLICATION CIRCUIT

Gnd

Vsense

PR4101

Vcc

7...40 V

One or

more LEDs

SUB

5VHi

NDRV

Vcc

VDI

5VLo

CLED

D1

L

RVsense

Rsense

CIN

Page 1/24

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PR4101 Datasheet(PDF) 1 Page - PREMA Semiconductor.

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