HV825LG中文资料High Voltage EL Lamp Driver数据手册Microchip规格书

描述 Description

General Description
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.
The HV825 can be enabled/disabled by connecting the RSW-osc resistor to VDD/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 RSW-osc pin and the supply pin VDD. The EL lamp driver frequency is set by an external resistor connected between REL-osc pin and the VDD pin. An external inductor is connected between the LX and VDD pins. A 0.01 to 0.1µF, 100V capacitor is connected between CS and ground. The EL lamp is connected between VA and VB.
The switching BJT charges the external inductor and discharges it into the 0.01 to 0.1µF, 100V capacitor at CS. The voltage at CS will start to increase. The outputs VA and VB are configured as an H-bridge and are switching in opposite states to achieve a peak-to-peak voltage of two times the VCS voltage across the EL lamp.

特性 Features

❏ Processed with HVCMOS® technology
❏ 1.0V to 1.6V operating supply voltage
❏ DC to AC conversion
❏ Output load of typically up to 6nF
❏ Adjustable output lamp frequency
❏ Adjustable converter frequency
❏ Enable functionApplications
❏ Pagers
❏ Portable Transceiver
❏ Cellular phones
❏ Remote control units
❏ Calculators

应用 Application

❏ Pagers
❏ Portable Transceiver
❏ Cellular phones
❏ Remote control units
❏ Calculators

简介

HV825LG属于集成电路（IC）的照明镇流器控制器。由制造生产的HV825LG照明，镇流器控制器此产品族中的产品可用于实现控制和调节功能。对于日光灯、电致发光灯和 HID 灯等非 LED 照明工具的正常工作，这些功能很有必要或十分有用。既定器件所具备的特定功能集因预期用途各异，并且所供应的产品可能包括相应资源以直接控制驱动负载的电源，也可能不包括这些资源。