HV850(2011) Ver la hoja de datos (PDF) - Supertex Inc

Número de pieza

componentes Descripción

Fabricante

HV850
(Rev.:2011)

High Voltage, Low Noise, Inductorless EL Lamp Driver

Supertex Inc 

HV850

Pin Description

Pin #

Pad Description

1

VDD Input supply voltage pin.

2

REL

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

proportional to the resistor value.

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

3

EN delayed turn off. Logic low will turn the device OFF only for VDD = 3.4V to 4.2V. For VDD lower 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

4

CLKIN (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.

5

CLKEN

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 REL resistor.

6

GND IC ground pin.

7

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

8

VA 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

6

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