Datasheet > IMP560

IMP560

更新时间： 2024-02-28 15:03:01

品牌	Logo	应用领域
IMP		驱动器
页数	文件大小	规格书
8页	155K
描述
POWER EFFICIENT EL LAMP DRIVER

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技术参数
数据手册

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IMP560 技术参数

生命周期：	Obsolete	包装说明：	SOP,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.84
接口集成电路类型：	EL DISPLAY DRIVER	JESD-30 代码：	R-PDSO-G8
端子数量：	8	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	认证状态：	Not Qualified
表面贴装：	YES	端子形式：	GULL WING
端子位置：	DUAL	Base Number Matches：	1

IMP560 数据手册

IMP560

OWER

ANAGEMENT

Key Features

Power Efficient

EL Lamp Driver

ꢀ 112V peak-to-peak typical AC output voltage

ꢀ Low input current (w/inductor current)......12mA

ꢀ Low disabled input current......50nA

The IMP560 is an Electroluminescent (EL) lamp driver designed for sys-

tems with low EL lamp drive voltage requirements. It is ideal for low

ambient light applications or where small lamps are used. With just one-

half the inductor current of the IMP803, the IMP560 reduces system

power consumption and extends battery life. Input supply voltage range

is 2.0V to 6.5V and quiescent current is a low 420µA. Typical EL lamp

drive voltage is 56V.

ꢀ Wide operating voltage range - from 2.0V to 6.5V

ꢀ Simple design requires few passive components

ꢀ Adjustable output lamp frequency controls lamp

color and power consumption

ꢀ Adjustable converter frequency for minimum

All four EL lamp-driving functions are on-chip. These are the switch-

mode power supply, its high-frequency oscillator, the high-voltage

H-bridge lamp driver and its low-frequency oscillator. EL lamps of up to

6nF capacitance can be driven to high brightness.

power consumption

ꢀ IMP803 pin-compatible

ꢀ MicroSO package option

The circuit requires few external components; a single inductor, a single

diode, two capacitors and three resistors. Two of these resistors set the

frequencies for two internal oscillators. An internal circuit shuts down

the switching regulator when the lamp drive voltage exceeds 120V

peak-to-peak. This conserves power and extends battery life.

Applications

A disable mode puts the chip into a low current drain mode. With a 3.0V

supply, quiescent current drops to 200nA maximum, 50nA typical. The

chip is disabled by connecting the oscillator frequency setting resistor

R_SWto ground.

ꢀ Night lights

ꢀ Automotive displays

ꢀ Cellular phones

ꢀ Pagers

ꢀ Clocks and radios

ꢀ Portable GPS receivers

ꢀ LCD module backlights

The IMP560 is available in MicroSO and SO-8 packages and in die or

wafer form.

Block Diagram

V_DD

L_X

Switch

Oscillator

R_SW-OSC

C_S

GND

–

Regulation

Control

V_REF

Bridge Output

Driver and

OSC

IMP560

V_B

R_EL-OSC

560_01.eps

408-432-9100/www.impweb.com

12 3 4 5 6 7 8

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