Datasheet > HV9985K6-G

HV9985K6-G

更新时间： 2024-11-22 01:16:27

品牌	Logo	应用领域
超科 - SUPERTEX		驱动接口集成电路
页数	文件大小	规格书
16页	1740K
描述
Three-Channel, Closed-Loop, Switch Mode LED Driver IC

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

HV9985K6-G 数据手册

Supertex inc.

HV9985

Three-Channel, Closed-Loop,

Switch Mode LED Driver IC

General Description

Features

The HV9985 is a three-channel peak current mode PWM

controller for driving single switch converters in a constant

output current mode. It can be used for driving either RGB LEDs

or multiple channels of white LEDs.

► Switch mode controller for single-switch

converters

► Gate drivers optimized for driving Logic Level FETs

♦ 0.25A sourcing

♦ 0.5A sinking

The HV9985 features a 40V linear regulator, which provides a

5.0V supply to power the IC. The switching frequencies of the

three converters in the IC are controlled either with an external

clock signal (the channels operate at a switching frequency

of 1/12th of the external clock frequency) or using the internal

oscillator. The three channels are positioned 120° out-of-phase

to reduce the input current ripple. Each converter is driven by a

peak current mode controller with output current feedback.

► Typical ±2% absolute and string-to-string current

accuracy (with ±1% sense resistors)

► High PWM dimming ratio up to 5000:1

► 10-40V input range

► Constant frequency operation up to 1.0MHz

► On-chip clock or external clock option

► Programmable slope compensation

► Linear and PWM dimming

► Output short circuit protection

► Output over voltage protection

► Hiccup mode protection

The three output currents can be individually dimmed using

either linear or PWM dimming. The IC also includes three

disconnect FET drivers which enable high PWM dimming ratios

and also helps to disconnect the input in case of an output short

circuit condition. The HV9985 includes hiccup mode protection

for both open LED and short circuit condition to prevent the IC

from shutting down in the case of intermittent faults.

Applications

► RGB backlight applications

► Boost, buck & SEPIC topologies

► Multiple string white LED driver applications

Typical Application Circuit

D1b (Optional)

Q1a

D1a

C_IN

C_IN1

R_OVP1a

C_O1

C_SC1

R_SC1

R_CS1

R_OVP1b

C_VDD

C_VDD1

VDD VDD1

GT1

CS1

GND1 OVP1

Q1b

VIN

FLT1

GND

HV9985

FDBK1

COMP1

(One Channel Shown)

C_C1

R_T

PWMD1 CLK

SKIP

REF1

R_S

REF

C_SKIP

C_REF1

R_REF1

Doc.# DSFP-HV9985

C051513

Supertex inc.

www.supertex.com

12 3 4 5 6 7...16

中文翻译

下载PDF

与HV9985K6-G相关器件

型号	品牌	获取价格	描述	数据表
HV9985K6-GM935	SUPERTEX	获取价格	LED Driver
HV9985QP-G	SUPERTEX	获取价格	LED Driver, 1-Segment, PDSO44, 17.83 X 7.50 MM, 2.64 MM HEIGHT, 0.80 MM PITCH, ROHS COMPLI
HV9986K6-G	MICROCHIP	获取价格	LED DISPLAY DRIVER, QCC40
HV9989	MICROCHIP	获取价格	Three-Channel CCM/DCM Boost LED Driver with Sub-Microsecond PWM Dimming
HV9989K6-G	MICROCHIP	获取价格	Three-Channel CCM/DCM Boost LED Driver with Sub-Microsecond PWM Dimming
HV9989K6-G-M935	MICROCHIP	获取价格	Three-Channel CCM/DCM Boost LED Driver with Sub-Microsecond PWM Dimming
HV9990NG-GM934	SUPERTEX	获取价格	LED Driver
HVA	COOPER	获取价格	Buss High Voltage Fuses
HVA-1	COOPER	获取价格	Electric Fuse, 1A, 1000VAC, Inline/holder
HVA-1/10	COOPER	获取价格	Electric Fuse, 0.1A, 1000VAC, Inline/holder

与HV9985K6-G相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

28
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

21
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

50
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

48

产品中心

服务支持

精选活动

关于我们

帮助中心

HV9985K6-G

HV9985K6-G 数据手册

与HV9985K6-G相关器件

与HV9985K6-G相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

HV9985K6-G

HV9985K6-G 数据手册

与HV9985K6-G相关器件

与HV9985K6-G相关文章

您还可以找

您在本页遇到什么问题？