Micrel Inc.

MIC4811

December 2010

2

M9999-123110-A

Ordering Information

Part Number

Mark Code

(1)

Junction Temperature Range

Package

MIC4811YMM

4811

–40°C to +125°C

10-Pin MSOP

Pin Configuration

10-Pin MSOP (MM)

(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 16.5kΩ

resistor between RSET and GND to set LED current to 50mA 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.