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HV9985QP-G

更新时间： 2024-09-30 20:02:55
品牌 Logo 应用领域
超科 - SUPERTEX 驱动光电二极管接口集成电路
页数 文件大小 规格书
16页 1712K
描述
LED Driver, 1-Segment, PDSO44, 17.83 X 7.50 MM, 2.64 MM HEIGHT, 0.80 MM PITCH, ROHS COMPLIANT, QSOP-44

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HV9985QP-G 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Transferred零件包装代码：SOIC
包装说明：SSOP,针数：44
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.71
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：R-PDSO-G44
JESD-609代码：e3长度：17.83 mm
复用显示功能：NO功能数量：1
区段数：1端子数量：44
最高工作温度：85 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：SSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：2.64 mm最大供电电压：5.25 V
最小供电电压：4.75 V标称供电电压：5 V
表面贴装：YES温度等级：OTHER
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.8 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：7.5 mm
Base Number Matches：1

HV9985QP-G 数据手册

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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  
L1  
CIN  
CIN1  
ROVP1a  
CO1  
CSC1  
RSC1  
RCS1  
ROVP1b  
CVDD  
CVDD1  
VDD VDD1  
GT1  
CS1  
GND1 OVP1  
Q1b  
VIN  
FLT1  
GND  
EN  
HV9985  
FDBK1  
COMP1  
(One Channel Shown)  
RT  
CC1  
RT  
PWMD1 CLK  
SKIP  
REF1  
RS  
REF  
CSKIP  
CREF1  
RREF1  
Doc.# DSFP-HV9985  
C051513  
Supertex inc.  
www.supertex.com  
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