HV825

更新时间： 2024-11-03 22:33:43

品牌	Logo	应用领域
超科 - SUPERTEX		驱动器高压
页数	文件大小	规格书
4页	330K
描述
High Voltage EL Lamp Driver

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HV825 数据手册

HV825

High Voltage EL Lamp Driver

Ordering Information

Package Options

MSOP-8

Device

Input Voltage

8-Lead SO

Die

HV825

1.0 to 1.6V

HV825LG

HV825MG*

HV825X

* Product supplied on 2500 piece carrier tape reels.

Features

General Description

❏

Processed with HVCMOS^®technology

1.0V to 1.6V operating supply voltage

DC to AC conversion

The Supertex HV825 is a high voltage driver designed for driving

EL lamps typically up to 6nF. The input supply voltage range is

from 1.0V to 1.6V. The device uses a single inductor and a

minimum number of passive components. Typical output

voltage that can be applied to the EL lamp is 56V.

Output load of typically up to 6nF

Adjustable output lamp frequency

Adjustable converter frequency

Enable function

The HV825 can be enabled/disabled by connecting the R_SW-osc

resistor to V_DD/ground.

The HV825 has two internal oscillators, a switching bipolar

junction transistor (BJT), and a high voltage EL lamp driver. The

frequency for the switching BJT is set by an external resistor

connected between the R_SW-oscpin and the supply pin V_DD. The

EL lamp driver frequency is set by an external resistor connected

between R_EL-oscpin and the V_DDpin. An external inductor is

connected between the L_Xand V_DDpins. A 0.01 to 0.1µF, 100V

capacitor is connected between C_Sand ground. The EL lamp is

connected between V_Aand V_B.

Applications

❏

Pagers

Portable Transceiver

Cellular phones

Remote control units

Calculators

The switching BJT charges the external inductor and discharges

it into the 0.01 to 0.1µF, 100V capacitor at C_S. The voltage at C_S

will start to increase. The outputs V_Aand V_Bare configured as

an H-bridge and are switching in opposite states to achieve a

peak-to-peak voltage of two times the V_CSvoltage across the EL

lamp.

Absolute Maximum Ratings*

Supply voltage, V_DD

-0.5V to +2.5V

Operating Temperature Range

Storage Temperature Range

MSOP-8 Power Dissipation

SO-8 Power Dissipation

-25°C to +85°C

-65°C to +150°C

300mW

Pin Configuration

V_DD

R_SW-osc

C_s

R_EL-osc

V_A

400mW

Note:

V_B

*All voltages are referenced to GND.

L_x

GND

top view

SO-8/MSOP-8

For detailed circuit and application information, please refer

to application notes AN-H33 and AN-H34.

11/12/01

Supertex Inc. does not recommend the use of its products in life support applications and will not knowingly sell its products for use in such applications unless it receives an adequate "products liability

indemnification insurance agreement." Supertex does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to

workmanship. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the

Supertex website: http://www.supertex.com. For complete liability information on all Supertex products, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.

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与HV825相关器件

型号	品牌	获取价格	描述	数据表
HV825_07	SUPERTEX	获取价格	High Voltage EL Lamp Driver IC
HV825LG	SUPERTEX	获取价格	High Voltage EL Lamp Driver
HV825LG-G	SUPERTEX	获取价格	High Voltage EL Lamp Driver IC
HV825MG	SUPERTEX	获取价格	High Voltage EL Lamp Driver
HV825MG-G	SUPERTEX	获取价格	High Voltage EL Lamp Driver IC
HV825X	SUPERTEX	获取价格	High Voltage EL Lamp Driver
HV826	SUPERTEX	获取价格	High Voltage EL Lamp Driver
HV826LG	SUPERTEX	获取价格	High Voltage EL Lamp Driver
HV826LG-G	SUPERTEX	获取价格	EL Driver, 1-Segment, PDSO8, 4.90 X 3.90 MM, 1.75 MM HEIGHT, 1.27 MM PITCH, GREEN, MS-012A
HV826LGP030	SUPERTEX	获取价格	EL Driver, PDSO8, SO-8

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