Micrel
MIC4830
Ordering Information
Part Number
MIC4830YML
MIC4830YMM
Junction Temp. Range
–40°C to +85°C
Package
8-Pin 3mm × 3mm MLF®
8-Pin MSOP
–40°C to +85°C
Pin Configuration
8-Pin MSOP Package (MM)
8-Pin 3mm × 3mm MLF® (ML) – Top View
Pin Description
Pin Number
Pin Name
Pin Function
1
2
VDD
Supply (Input): 1.8V to 5.5V for internal circuitry.
RSW
Switch Resistor (External Component): Set switch frequency of the internal
power MOSFET by connecting an external resistor to VDD. Connecting the
external resistor to GND disables the switch oscillator and shuts down the
device.
3
REL
EL Resistor (External Component): Set EL frequency of the internal H-bridge
driver by connecting an external resistor to VDD. Connecting the external
resistor to GND disables the EL oscillator.
4
5
6
GND
SW
CS
Ground
Switch Node (Input): Internal high-voltage power MOSFET drain.
Regulated Boost Output (External Component): Connect to the output capacitor
of the boost regulator and connect to the cathode of the diode.
7
8
VB
VA
EL Output: Connect to one end of the EL lamp. Polarity is not important.
EL Output: Connect to one end of the EL lamp. Polarity is not important.
M9999-091307
(408) 955-1690
September 2007
2
MICREL [ MICREL SEMICONDUCTOR ]
