器件名称:
SM8144B
功能描述:
EL Sheet Driver
文件大小:
69.64KB 共6页
简 介:
SM8144B NIPPON PRECISION CIRCUITS INC. EL Sheet Driver OVERVIEW The SM8144B is a transformer-less electroluminescent (EL) driver IC, capable of driving displays up to 80 cm2 in size. It is a high-efciency driver that features revised coil switching transistor ON resistance and output circuit conguration to reduce loss, all in a compact package. A microcontroller interface pin (ENA) is provided, which can be used to control the EL driver ON/OFF function. The device is available in 8-pin VSOP packages. FEATURES s s PINOUT (Top view) pre lim ina s s s s s s Dedicated EL driver 1.6 to 5.5 V supply voltage 100mA maximum operating current (VDD = 3.0V, Ta ≤ 70°C) 3.5 typical output resistance 200 Vp-p maximum EL driver voltage* 31 to 1500 Hz EL drive frequency range* High voltage CMOS Process 8-pin VSOP plastic package CHV LDR OSC *: Adjustable with external resistance. APPLICATIONS s s s Hand held PC, Palm size PC Mobile IT equipment White EL PACKAGE DIMENSIONS (Unit : mm) ORDERING INFORMATION D e vice P ackag e SM8144BV 8-pin V S O P 4.4 ± 0.2 6.4 ± 0.3 0.575 typ 3.1 ± 0.3 0.15 0.05 +0.1 0.10 0.22 ± 0.1 0.1 ± 0.05 0.65 1.15 ± 0.05 0.12 M NIPPON PRECISION CIRCUITS—1 0.5 ± 0.2 ry 1 2 3 4 8 7 6 5 OUT1 OUT2 VDD ENA VSS 8144BV 0 to 10 SM8144B BLOCK DIAGRAM EL sheet < 80cm2 VDD Boosting Block VSS PIN DESCRIPTION Pin nu m b e r 1 2 3 4 Name CHV LDR VSS lim I/O I High-voltage DC input O – I Booster coil driver output Ground I – Supply O O Outp……
