Datasheet > HV825

HV825

更新时间： 2023-12-06 20:10:41

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
12页	403K
描述
HV825 is a high voltage driver designed for driving EL lamps typically up to 6.0nF. The input supp

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

HV825 数据手册

HV825

High-Voltage EL Lamp Driver IC

Features

General Description

• Processed with HVCMOS^®Technology

• 1.0 to 1.6V Operating Supply Voltage

• DC to AC Conversion

The HV825 is a high-voltage driver designed for driv-

ing EL lamps typically up to 6.0 nF. 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. The typical output voltage that can be

applied to the EL lamp is ±56V.

• Output Load of Typically up to 6.0 nF

• Adjustable Output Lamp Frequency

• Adjustable Converter Frequency

• Enable Function

The HV825 can be enabled/disabled by connecting

the R_SW-Oscresistor to V_DD/GND.

The HV825 has two internal oscillators to drive a switch-

ing 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-

Applications

• Pagers

• Portable Transceivers

• Cellular Phones

• Remote Control Units

• Calculators

_Oscpin and the V_DDsupply pin. The EL lamp driver fre-

quency is set by an external resistor connected between

the R_EL-Oscpin and the V_DDpin. An external inductor is

connected between the L_Xand V_DDpins. A 0.01 to

0.1 µF, 100V capacitor is connected between the C_Spin

and the GND pin. The EL lamp is connected between

the V_Apin and the V_Bpin.

The switching BJT charges the external inductor and

discharges it into the 0.01 to 0.1 µF, 100V capacitor at

the C_Spin. The voltage at the C_Spin 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_CS

voltage across the EL lamp.

Typical Application Circuit

ꢄꢅꢂꢃ0ȍ

ON = V_DD

OFF = 0V

VDD

REL-Osc

ꢀꢁꢂꢃNȍ

RSW-Osc

560 μH

EL Lamp

1N4148

V_DD= V_IN= 1.5V

0.1 μF²

GND

1.0 nF

16V

0.01 μF

100V

 2015 Microchip Technology Inc.

DS20005450A-page 1

12 3 4 5 6 7...12

中文翻译

下载PDF

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