Micrel Inc.

MIC4802

January 2011

2

M9999-013111-B

Ordering Information

Part Number

Temperature Range

Package

MIC4802YME

–40°C to +125°C

8-Pin EPAD SOIC

Pin Configuration

8-Pin Epad SOIC (ME)

(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 6.19kΩ

resistor between RSET and GND to set LED current to 830mA at 100% duty cycle.

4

GND

Ground.

5

D1

LED1 driver input. Connect LED anode to VIN and cathode to this pin. All D1 pins must be

connected to the LED.

6

D1

LED1 driver input. Connect LED anode to VIN and cathode to this pin. All D1 pins must be

connected to the LED.

7

D1

LED1 driver input. Connect LED anode to VIN and cathode to this pin. All D1 pins must be

connected to the LED.

8

D1

LED1 driver input. Connect LED anode to VIN and cathode to this pin. All D1 pins must be

connected to the LED.

EPAD

HS PAD

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