MIC4802 Datasheet, PDF (2/12 Pages) Micrel Semiconductor – High Efficiency 800mA Single Channel Linear WLED Driver with Ultra Fast PWM™ Control

Micrel Inc.
Ordering Information
Part Number
MIC4802YME
Pin Configuration
Temperature Range
–40°C to +125°C
MIC4802
Package
8-Pin EPAD SOIC
8-Pin Epad SOIC (ME)
(Top View)
Pin Description
Pin Number
1
2
Pin Name
VIN
EN
3
RSET
4
GND
5
D1
6
D1
7
D1
8
D1
EPAD
HS PAD
Pin Function
Voltage Input. Connect at least 2.2µF ceramic capacitor between VIN and GND.
Enable LED drivers. This pin can be used as a PWM input for dimming of WLEDs. Do not leave
floating.
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.
Ground.
LED1 driver input. Connect LED anode to VIN and cathode to this pin. All D1 pins must be
connected to the LED.
LED1 driver input. Connect LED anode to VIN and cathode to this pin. All D1 pins must be
connected to the LED.
LED1 driver input. Connect LED anode to VIN and cathode to this pin. All D1 pins must be
connected to the LED.
LED1 driver input. Connect LED anode to VIN and cathode to this pin. All D1 pins must be
connected to the LED.
Heat sink pad. Not internally connected. Connect to ground.
January 2011
2
M9999-013111-B