Datasheet > HV9971LG-G

HV9971LG-G

更新时间： 2024-11-25 21:01:35

品牌	Logo	应用领域
美国微芯 - MICROCHIP		驱动光电二极管接口集成电路
页数	文件大小	规格书
10页	839K
描述
LED DISPLAY DRIVER, PDSO8

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技术参数
数据手册

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HV9971LG-G 技术参数

生命周期：	Obsolete	包装说明：	SOP,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.72
接口集成电路类型：	LED DISPLAY DRIVER	JESD-30 代码：	R-PDSO-G8
长度：	4.9 mm	复用显示功能：	NO
功能数量：	1	区段数：	2
端子数量：	8	最高工作温度：	125 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	认证状态：	Not Qualified
座面最大高度：	1.75 mm	最大供电电压：	11.5 V
最小供电电压：	10.5 V	标称供电电压：	11 V
表面贴装：	YES	温度等级：	AUTOMOTIVE
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	宽度：	3.9 mm
Base Number Matches：	1

HV9971LG-G 数据手册

Supertex inc.

HV9971

Isolated, Constant Current

LED Driver

Features

General Description

► Programmable true constant current operation

The HV9971 is a primary-side control IC for driving a discontinuous

conduction mode (DCM) ﬂyback LED driver. The IC is optimized for

operation at a constant full-load switching frequency of 100kHz and

the universal input AC voltage range of 80-264VAC. It maintains

3% variation of the LED current setting, and features tight line

and load regulation. The proprietary primary-side output current

control employed in the HV9971 makes the output current setting

insensitive to most component tolerances and parasitics without

use of an opto-feedback.

► ±3% LED current accuracy

► Adaptive to external component tolerances and

parasitics

► Primary-side current sensing

► Output open circuit protection

► Output short circuit protection

► Input under voltage lockout

► PWM dimming / enable

► Universal 80-264VAC operation

► Fixed frequency operation

The HV9971 LED driver is fully protected against output open and

short circuit conditions and input under-voltage. It also offers a logic

input for dimming the LED light output by means of pulse-width

modulation of the output current.

Applications

► Low power lighting ﬁxtures

The HV9971 is ideally suited for driving high-brightness LEDs in

low-power lighting ﬁxtures such as incandescent bulb retroﬁts.

Typical Application Circuit

I_O

V_IN

R_IN

VIN

R_BIAS

PWMD

BIAS

HV9971

R_SN

C_SN

GATE

GND

VDD

R_DD

R_S

R_D

C_DD

Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com

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与HV9971LG-G相关器件

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HV9985	MICROCHIP	获取价格	The HV9985 is a three-channel peak current mode PWM controller for driving single switch c
HV9985K6-G	SUPERTEX	获取价格	Three-Channel, Closed-Loop, Switch Mode LED Driver IC

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