Datasheet > HV850

HV850

更新时间： 2023-12-06 20:09:23

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
7页	592K
描述
HV850 is a high voltage electroluminescent (EL) Lamp Driver IC. It is designed to drive EL lamps o

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HV850 数据手册

HV850

Pin Description

Pin #

Pad

Description

VDD

Input supply voltage pin.

An external resistor to VDD will set the EL lamp frequency. The EL lamp frequency is inversely

proportional to the resistor value.

REL

Enable input pin. Logic high will turn the device ON. An external R-C circuit can be added for a

delayed turn off. Logic low will turn the device OFF only for V_DD= 3.4V to 4.2V. For V_DDlower than

3.4V, logic low will not turn the device OFF.

Logic input pin. An external logic clock applied to this pin can be used to set the EL lamp frequency

(see Figure 3). This is useful for applications requiring the EL lamp to be synchronized to a system

clock. Connect to ground when not in use.

CLKIN

Logic input pin. Logic high will cause the EL lamp frequency to be set by the CLKIN input. Logic low

will cause the EL lamp frequency to be set by the external R_ELresistor.

CLKEN

GND

IC ground pin.

EL lamp driver output pin. The EL lamp is connected across VA and VB terminals.

Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com

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