HV826

更新时间： 2024-11-20 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
6页	336K
描述
High Voltage EL Lamp Driver

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HV826 数据手册

HV826

High Voltage EL Lamp Driver

Ordering Information

Package Options

SO-8

Device

MSOP-8

Die

HV826

HV826MG*

HV826LG

HV826X

* Product supplied on 2500 piece carrier tape reels.

Features

General Description

❏ 1.8V to 3.5V operating supply voltage

The Supertex HV826 is a high voltage driver designed for driving

EL lamps. The input supply voltage range is from 1.8V to 3.5V.

The device uses a single inductor and a minimum number of

passive components.The nominal regulated output voltage that

is applied to the EL lamp is 80V. The chip can be enabled/

disabled by connecting the resistor on R_SW-OSCto V_DD/ground.

❏ DC to AC conversion

❏ Adjustable output frequency

❏ Adjustable switch frequency

❏ Output voltage regulation

❏ Enable/disable function

The HV826 has two internal oscillators, a switching MOSFET,

and a high voltage EL lamp driver. The frequency for the

switching MOSFET 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 be-

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

connected between the L_Xand V_DDpins. A 0.01-0.1µF capacitor

is connected between C_Sand ground.The EL lamp is connected

between V_Aand V_B.

Applications

❏ Mobile cellular phones

❏ Pagers

The switching MOSFET charges the external inductor and

discharges it into the capacitor at C_S.The voltage at C_Swill start

to increase. Once the voltage at C_Sreaches a nominal value of

80V, the switching MOSFET is turned OFF to conserve power.

The outputs V_Aand V_Bare configured as an H bridge and are

switching in opposite states to achieve 160V peak-to-peak

across the EL lamp.

❏ Portable Transceivers

❏ Remote Control Units

❏ Calculators

Pin Configuration

Absolute Maximum Ratings*

Supply Voltage, V_DD

-0.5V to +4.5V

Output Voltage, V_Cs

-0.5V to +100V

-25° to +85°C

-65°C to +150°C

250mW

ςΑ

Operating Temperature Range

Storage Temperature Range

MSOP-8 Power Dissipation

SO-8 Power Dissipation

V_DD

R_SW-osc

R_EL-osc

Gnd

V_A

V_B

C_S

L_X

MSOP-8

and

SO-8

400mW

Note:

*All voltages are referenced to GND.

Top View

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HV826相关器件

型号	品牌	获取价格	描述	数据表
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
HV826LGP031	SUPERTEX	获取价格	EL Driver, PDSO8, SO-8
HV826MG	SUPERTEX	获取价格	High Voltage EL Lamp Driver
HV826MG-G	SUPERTEX	获取价格	暂无描述
HV826X	SUPERTEX	获取价格	High Voltage EL Lamp Driver
HV828X	SUPERTEX	获取价格	EL Driver, 1-Segment, DIE
HV829A	SUPERTEX	获取价格	High Voltage EL Lamp Driver
HV829ASG	SUPERTEX	获取价格	High Voltage EL Lamp Driver

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