Datasheet > HV9910_07

HV9910_07

更新时间： 2024-11-02 03:43:11

品牌	Logo	应用领域
超科 - SUPERTEX		驱动器
页数	文件大小	规格书
8页	579K
描述
Universal High Brightness LED Driver

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HV9910_07 数据手册

HV9910

Universal High Brightness

LED Driver

Features

► >90% Efﬁciency

► 8V to 450V input range

► Constant-current LED driver

► Applications from a few mA to more than 1A

Output

► LED string from one to hundreds of diodes

► PWM Low-Frequency Dimming via Enable pin

► Input Voltage Surge ratings up to 450V

General Description

The HV9910 is a PWM high-efﬁciency LED driver control IC.

It allows efﬁcient operation of High Brightness (HB) LEDs

from voltage sources ranging from 8VDC up to 450VDC.

The HV9910 controls an external MOSFET at ﬁxed switching

frequency up to 300kHz. The frequency can be programmed

using a single resistor. The LED string is driven at constant

current rather than constant voltage, thus providing constant

light output and enhanced reliability. The output current can

be programmed between a few milliamps and up to more than

1.0A.

Applications

The HV9910 uses a rugged high voltage junction isolated

process that can withstand an input voltage surge of up to

450V. Output current to an LED string can be programmed to

any value between zero and its maximum value by applying

an external control voltage at the linear dimming control input

of the HV9910. The HV9910 provides a low-frequency PWM

dimming input that can accept an external control signal with a

duty ratio of 0-100% and a frequency of up to a few kilohertz.

► DC/DC or AC/DC LED Driver applications

► RGB Backlighting LED Driver

► Back Lighting of Flat Panel Displays

► General purpose constant current source

► Signage and Decorative LED Lighting

► Automotive

► Chargers

Typical Application

V_IN

V_DD

HV9910

GATE

PWMD

R_T

GND

12 3 4 5 6 7 8

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与HV9910_07相关器件

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HV9910B	SUPERTEX	获取价格	Universal High Brightness LED Driver
HV9910B	MICROCHIP	获取价格	Universal High-Brightness LED Driver
HV9910B_08	SUPERTEX	获取价格	Universal High Brightness LED Driver
HV9910BLG-G	MICROCHIP	获取价格	LED DISPLAY DRIVER, PDSO8
HV9910BLG-G	SUPERTEX	获取价格	Universal High Brightness LED Driver
HV9910BNG-G	SUPERTEX	获取价格	Universal High Brightness LED Driver
HV9910BNG-G	MICROCHIP	获取价格	LED DISPLAY DRIVER, PDSO16
HV9910BNG-G-M901	MICROCHIP	获取价格	LED DISPLAY DRIVER
HV9910BNG-G-M934	MICROCHIP	获取价格	Universal High-Brightness LED Driver
HV9910C	SUPERTEX	获取价格	The HV9910C is an open loop, current mode, control LED driver IC.