MP4700 – HIGH-BRIGHTNESS BCM, LOW SIDE BUCK WLED DRIVE WLED DRIVER

MP4700 Rev. 1.0

www.MonolithicPower.com

4

10/29/2012

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PIN FUNCTIONS

Pin #

Name

Description

1

INUV

Input Bus Voltage UVLO. Sense with a voltage divider.

2

PWM

PWM Dimming Input. Connect directly to the PWM dimming signal. Apply a high voltage or

leave open for no applied dimming control.

3

GND

Ground.

4

VIN

Input Supply. Apply a voltage in the range of 8V to 18V.

5

VCC

Internal Regulated Supply Voltage Output. Must be locally bypassed. Provides power for IC

logic and to drive the external MOSFET.

6

TST

Test. Connect to GND.

7

DRV

External MOSFET Drive Signal. Also detects the zero current crossing.

8

CS

LED Current Sense Input. Connect to the current sense resistor that programs the LED

current.