Datasheet > HV858X

HV858X

更新时间： 2024-11-04 19:57:55

品牌	Logo	应用领域
超科 - SUPERTEX		驱动接口集成电路
页数	文件大小	规格书
7页	366K
描述
EL Driver, 1-Segment, DIE

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中文翻译

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技术参数
数据手册

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HV858X 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	DIE
包装说明：	DIE,	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.74	数据输入模式：	SERIAL
接口集成电路类型：	EL DISPLAY DRIVER	JESD-30 代码：	X-XUUC-N
JESD-609代码：	e0	复用显示功能：	NO
功能数量：	1	区段数：	1
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	UNSPECIFIED	封装代码：	DIE
封装形状：	UNSPECIFIED	封装形式：	UNCASED CHIP
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	Not Qualified
最大供电电压：	6.5 V	最小供电电压：	1.8 V
标称供电电压：	3 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	TIN LEAD
端子形式：	NO LEAD	端子位置：	UPPER
处于峰值回流温度下的最长时间：	NOT SPECIFIED	最小 fmax：	1 MHz
Base Number Matches：	1

HV858X 数据手册

HV858

Initial Release

Tri-EL Lamp Driver IC

General Description

Features

Tri-EL lamp driver with common terminal

The Supertex HV858 is a high voltage triple EL lamp driver designed

for driving combined EL lamps of up to 3.0 in²(1.0 in²each). The

input supply voltage range is from 1.8V to 6.5V. The device is de-

signed such that the input voltage to the inductor can be different

from the input voltage to the device (split supply). The device uses

a single inductor and a minimum number of passive components.

The nominal regulated output voltage that is applied to the EL lamp

is ±95V. The HV858 has two internal oscillators, one for the internal

switching MOSFET, and the other for the high voltage EL lamp driver.

The EL lamp frequency is fixed internally at 500Hz. The power con-

verter oscillator runs 256 times faster than the EL lamp driver at

128kHz.

Independent brightness control for all 3 lamps

1.8V to 6.5V Operating Supply Voltage

Output voltage regulation

Two-pin serial data communication for control

Linear brightness control with seven steps at constant

efficiency

128kHz Fixed Switching Frequency

Split supply capability

Patented high efficiency EL lamp driver

Single miniature inductor drives all 3 lamps

Only 4 external components

Burst mode power converter for best efficiency

CMOS compatible serial interface with noise rejection

150nA max. leakage current when disabled

Power-on reset causes all outputs to be off when first

powered up

An external inductor is connected between the L_Xand V_DDpins (or

between the L_Xpin and separate voltage source in the case of a split

supply application). A 0.002-0.01µF, 100V capacitor is connected

between the C pin and ground. The switching MOSFET charges

Small 10-pin MSOP package

the external inductor and discharges it into the capacitor at the C

pin. The voltage at C will start to increase. Once the voltage at C

reaches a nominal value of 95V, the switching MOSFET is turned

OFF to conserve power.

Applications

Mulit-segment, variable displays

Cell phone keypads and displays

MP3 players

One side of the 3 EL lamps is connected to the Com pin of HV858

and the other side to the EL1, EL2, and EL3 pins of the HV858.

Each EL lamp output may be independently controlled to have one

of the 7 brightness levels or can be completely turned OFF by a 10-

bit serial data input register. The 10-bit control code has 3 bits to

control the brightness level of each EL Lamp and one bit to option-

ally control the power converter. The 3-bit binary brightness control

code controls the number of 500Hz cycles (from 0 to 7) in a group of

7 cycles.

Watches

Typical Application Circuit

L_X

V_IN

C_IN

C_S

L_X

C_S

Com

GND

V_DD

SDI

EL3 8

EL Lamp 3

EL Lamp 2

EL Lamp 1

EL2

V_DD

C_DD

EL1

5 SCK

HV858

Serial Data in

Clock

NR 121504

NR121504

12 3 4 5 6 7

中文翻译

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与HV858X相关器件

型号	品牌	获取价格	描述	数据表
HV859	SUPERTEX	获取价格	High Voltage EL Lamp Driver for Low Noise Applications
HV859	MICROCHIP	获取价格	HV859 is a high voltage driver designed for driving Electroluminescent (EL) lamps of up to
HV859K7-G	SUPERTEX	获取价格	High Voltage EL Lamp Driver for Low Noise Applications
HV859MG-G	SUPERTEX	获取价格	High Voltage EL Lamp Driver for Low Noise Applications
HV860	SUPERTEX	获取价格	Low Noise Dimmable EL Lamp Driver
HV860	MICROCHIP	获取价格	HV860 is a high voltage driver designed for driving Electroluminescent, (EL), lamps of up
HV860K7-G	SUPERTEX	获取价格	Low Noise Dimmable EL Lamp Driver
HV861	SUPERTEX	获取价格	Dimmable, Low Noise, Dual EL Lamp Driver
HV861	MICROCHIP	获取价格	HV861 is a low noise, dimmable, high voltage, dual EL Lamp driver designed for driving two
HV861K7-G	SUPERTEX	获取价格	Dimmable, Low Noise, Dual EL Lamp Driver

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