HV853(2007) Ver la hoja de datos (PDF) - Supertex Inc

Número de pieza

componentes Descripción

Fabricante

HV853
(Rev.:2007)

High Voltage, Low Noise, Inductorless EL Lamp Driver

Supertex Inc 

HV853

Symbol Parameter

Min Typ Max Units Conditions

ENrise Enable input rise time (for delay turn off) 0.01

-

EN

Enable input fall time (for delay turn off) 10

-

fall

Cin Logic input capacitance

-

-

10

ms Using external R-C circuit,

5.0

µs see Figure 2

10

pF ---

Recommended Operating Conditions

Symbol Parameter

Min Typ Max Units Conditions

VDD Input voltage

fEL

EL lamp frequency

Cload EL lamp capacitance

TA

Operating temperature

3.2

-

5.0

V ---

50

-

500 Hz ---

0

-

5.3 nF ---

-25

-

+85

OC ---

Typical Output Waveform

Functional Block Diagram

VDD

EN

CLKIN

CLKEN

REL

VDD

Capacitor

Charge

Pump Circuit

VSENSE

High

Voltage

VA

Level

Feedback

Trans-

lators

VDD

VB

EL

Oscillator

MOSFET

Full Bridge

GND

3

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