Datasheet > HV830_07

HV830_07

更新时间： 2024-11-04 03:20:55

品牌	Logo	应用领域
超科 - SUPERTEX		驱动器高压
页数	文件大小	规格书
6页	575K
描述
High Voltage EL Lamp Driver IC

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HV830_07 数据手册

HV830

High Voltage EL Lamp Driver IC

Features

General Description

► Processed with HVCMOS® technology

► 2.0V to 9.5V operating supply voltage

► DC to AC conversion

► 200V peak-to-peak typical output voltage

► Large output load capability typically 50nF

The Supertex HV830 is a high-voltage driver designed for

driving EL lamps of up to 50nF. EL lamps greater than 50nF

can be driven for applications not requiring high brightness.

The input supply voltage range is from 2.0V to 9.5V. The de-

vice uses a single inductor and a minimum number of passive

components. The nominal regulated output voltage that is

applied to the EL lamp is ±±00V. The chip can be enabled by

connecting the resistors on the RSW-Osc and REL-Osc pins

to the VDD pin, and disabled when connected to GND.

► Permits the use of high-resistance elastomeric lamp

components

► Adjustable output lamp frequency to control lamp

color,lamp life, and power consumption

► Adjustable converter frequency to eliminate harmonics

and optimize power consumption

► Enable/disable function

► Low current draw under no load condition

► Very low standby current - 30nA typical

The HV830 has two internal oscillators, a switching MOSFET

and a high-voltage EL lamp driver. The frequency of the

switching converter MOSFET is set by an external resistor

connected between the RSW-Osc and the VDD pins. The EL

lamp driver frequency is set by an external resistor connected

between the REL-Osc and the VDD pins.An external inductor

is connected between the LX and VDD pins.A0.0±µF to 0.±µF

capacitor is connected between the CS pin and the GND. The

EL lamp is connected between the VA and VB pins.

Applications

► Handheld personal computers

► Electronic personal organizers

► GPS units

► Pagers

► Cellular phones

The switching MOSFET charges the external inductor and

discharges it into the CS capacitor. The voltage at CS will start

to increase. Once the voltage at CS reaches a nominal value

of ±00V, the switching MOSFET is turned OFF to conserve

power. The output pins VA and VB are conﬁgured as an H-

bridge and are switched in opposite states to achieve 200V

peak-to-peak across the EL lamp.

► Portable instrumentation

Block Diagram

VDD

RSW-Osc

Switch

Osc

ENABLE

GND

Disable

V_REF

Output

Osc

REL-Osc

12 3 4 5 6

中文翻译

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