SM8140A
EL Driver IC
NIPPON PRECISION CIRCUITS INC.
OVERVIEW
PIN OUT
( Top View )
The SM8140A is designed for using as EL (Elec-
tronic Luminescence) sheet driver require very low
external parts counts, this result that very compact
and thin EL driver units can be made.
14pin SSOP
Also this device has the features to use in wider
range of applications demanding low quiescent cur-
rent, low supply voltages, low operating supply cur-
rents, simple brightness control and low EMI
(Electro-Magnetic Interference) emission due to the
inherent smooth driver wave forms.
14
1
CHV
OUT1
OUT2
CP2
LDR
VSS1
OCL2
OCL1
OCE2
OCEl
CP1
CPO
VDD
ENA
FEATURES
7
8
■ Specially providing EL driver functions
■ Non-transformer for compact outline
■ Bipolar driving for high power efficiency
■ Very low noise smooth driver wave forms
■ Brightness control with driving frequency change
(An external resistance determines the driving fre-
quency)
PIN OUT
( Unit : mm )
■ Low power consumption by quiescent current
control
■ ON-chip high voltage output MOS transistor
2
■ Large EL sheet (Exceeding 100 cm ) drivable
■ supply voltage
V
= 2.4V to 3.6V or 5.0V
DD
■ 1.5V and 3V power applicable
(Refer to APPLICATION HINTS)
■ Maximum output driver voltage:200V
■ Typical driver frequency:250Hz
■ 14 pin SSOP
P − P
8.00
8.20
■ chip form
0
10
0.35 0.10
1.00
ORDERING INFOMATION
0.625 0.20
Device
Package
14pin SSOP
Chip in tray
SM8140AM
CF8140A
NIPPON PRECISION CIRCUITS—1
NPC [ NIPPON PRECISION CIRCUITS INC ]
