Micrel

MIC4833

October 2008

2

M9999-100308

(408) 955-1690

Ordering Information

Part Number

Package

Operating Junction Temp

Range

Lead Finish

MIC4833YML

12 pin 3mmx3mm

MLF

®

-40

°C to +125°C

Pb-free / RoHS Compliant

Pin Configuration

ENB

CS

5

1

ENA

VDD

RSW

REL

12 SLEW

ELA

ELB

COM

11

10

9

2

3

4

8

EP

GND

SW

6

7

12-Pin 3mm × 3mm MLF

Pin Description

Pin Number

Pin Name

Pin Function

1

ENA

EL Panel A Enable Pin: Logic high enables ELA and logic low disables

ELA output.

2

VDD

DC Input Supply Voltage: 2.3V to 5.8V

3

RSW

RSW pin: Sets internal boost converter switch frequency by

resistor to GND shuts down the device.

4

REL

REL pin: Sets internal H-bridge driver frequency by connecting an

the EL oscillator.

5

ENB

EL Panel B enable pin: Logic high enables ELB and logic low disables

ELB output.

6

GND

Ground.

7

SW

Switch Node: Drain of internal high-voltage power MOSFET for boost

circuit.

8

CS

Regulated Boost Output: Connect to the output capacitor of the boost

regulator and to the cathode of the diode.

9

COM

EL output: Common EL output terminal to both ELA and ELB. Connect

one end of each EL panel to this pin.

10

ELB

EL Panel B output: Connect the other end of the EL panel B to this

pin.

11

ELA

EL Panel A output: Connect the other end of the EL panel A to this

pin.

12

SLEW

Optional resistor to set output current drive to control slew rate of load.

If left open, the default slew current limit is 5mA.

EPad

HS Pad

Heat Sink Pad. Connect to ground externally.