MIC4834 Datasheet, PDF (2/12 Pages) Micrel Semiconductor – Low Noise Dual 220 VPP EL Driver

Micrel
MIC4834
Ordering Information
Part Number
Package
Operating Junction Temp Range
Lead Finish
MIC4834YML 10 pin (3mm x 3mm) MLF^®
-40ºC to +125ºC
Pb-free / RoHS-Compliant
MIC4834YMM
10-Pin MSOP
-40ºC to +125ºC
Pb-free / RoHS-Compliant
Pin Configuration
10-Pin MLF^® - Top View
10-Pin MSOP – Top View
Pin Description
Pin Number
1
2
3
4
5
6
7
8
9
10
EPad
Pin Name
ENA
VDD
RSW
ENB
GND
SW
CS
COM
ELB
ELA
HS Pad
Pin Function
EL Panel A Enable Pin: Logic high enables ELA and logic low disables ELA output.
DC Input Supply Voltage: 2.3V to 5.8V
RSW pin: Sets internal boost converter switch frequency by connecting an external
resistor (R_SW) to VDD. Connecting the R_SW resistor to GND shuts down the device.
EL Panel B enable pin: Logic high enables ELB and logic low disables ELB output.
Ground.
Switch Node: Drain of internal high-voltage power MOSFET for boost circuit.
Regulated Boost Output: Connect to the output capacitor of the boost regulator and
to the cathode of the diode.
EL output: Common EL output terminal to both ELA and ELB. Connect one end of
each EL panel to this pin.
EL Panel B output: Connect the other end of the EL panel B to this pin.
EL Panel A output: Connect the other end of the EL panel A to this pin.
Heat Sink Pad. Connect to ground externally. MLF® package only.
October 2008
2
M9999-100908-A