SM8143A Datasheet, PDF (1/6 Pages) Nippon Precision Circuits Inc – EL Sheet Driver

NIPPON PRECISION CIRCUITS INC.
SM8143A
EL Sheet Driver
OVERVIEW
The SM8143A is a transformer-less electroluminescent (EL) driver IC, capable of driving displays up to 80
cm² in size. It is a high-efficiency driver that features revised coil switching transistor ON resistance and output
circuit configuration to reduce loss.
The EL drive frequency and coil drive frequency can be controlled independently, making the driver circuit
optimizable to match application requirements. A microcontroller interface pin (ENA) is provided, which can
be used to control the EL driver ON/OFF function. The device is available in 16-pin VSOP packages.
FEATURES
s Dedicated EL driver
s 1.6 to 5.5 V supply voltage
s 150mA maximum operating current
(V_DD = 3.0V, Ta ≤ 70°C)
s 3.5Ω typical output resistance
s 200 Vp-p maximum EL driver voltage*
s 31 to 1500 Hz EL drive frequency range*
s High voltage CMOS Process
s 16-pin VSOP plastic package
*: Adjustable with external resistance.
APPLICATIONS
s Hand held PC, Palm size PC
s Mobile IT equipment
s White EL
ORDERING INFORMATION
PINOUT
(Top view)
N.C. 1
CHV
N.C.
LDR
N.C.
VSS
N.C.
OCL 8
16 N.C.
OUT1
N.C.
OUT2
N.C.
VDD
ENA
9 OCE
PACKAGE DIMENSIONS
(Unit : mm)
Device
SM8143AV
Package
16-pin VSOP
0.275TYP
5.1 0.2
0.65
0.10
+ 0.10
0.22 - 0.05 _{0.12 M}
0.15^+-00..105
0 10
0.5 0.2
NIPPON PRECISION CIRCUITS—1