Micrel Inc.

MIC4812

April 2011

2

M9999-041419-B

Ordering Information

Part Number

Mark Code

Junction Temperature Range

Package

MIC4812YMME

4812

–40°C to +125°C

10-Pin ePad MSOP

Pin Configuration

10-Pin ePad MSOP (MME)

(Top View)

Pin Description

Pin Number

Pin Name

Pin Function

1

VIN

Voltage Input. Connect at least 2.2µF ceramic capacitor between VIN and GND.

2

EN

Enable LED drivers. This pin can be used as a PWM input for dimming of WLEDs. Do not leave

floating.

3

RSET

An internal 1.27V reference sets the nominal maximum WLED current. Example, apply a 8.25kΩ

resistor between RSET and GND to set LED current to 100mA at 100% duty cycle.

4

GND

Ground.

5

D6

LED6 driver input. Connect LED anode to VIN and cathode to this pin.

6

D5

LED5 driver input. Connect LED anode to VIN and cathode to this pin.

7

D4

LED4 driver input. Connect LED anode to VIN and cathode to this pin.

8

D3

LED3 driver input. Connect LED anode to VIN and cathode to this pin.

9

D2

LED2 driver input. Connect LED anode to VIN and cathode to this pin.

10

D1

LED1 driver input. Connect LED anode to VIN and cathode to this pin.

ePad

HS PAD

Heat sink pad. Not internally connected. Connect to ground.