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HT4929E датащи(PDF) 1 Page - Hotchip Technology Co.,Ltd

номер детали HT4929E
подробное описание детали  ChargIng, electric discharge can be used in a port, intelligent recognition charging input load output
PDF  6 Pages
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производитель  HOTCHIP [Hotchip Technology Co.,Ltd]
домашняя страница  http://www.hotchip.com.cn/English/Index/index.html
Logo HOTCHIP - Hotchip Technology Co.,Ltd

HT4929E датащи(HTML) 1 Page - Hotchip Technology Co.,Ltd

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HT4929E
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Ver1.1
移动电源管理方案
产品概述
HT4929
是一款新构架的单片移动电源管理
芯片,采用充放端口共用的先进专利技术,以
及同步整流技术,外围元件少,性能优秀,可
以组建出良好的 1A-in/1A-out 、单/双 LED 指示
的移动电源。
主要特点
◆充电、放电可共用一个端口,智能识别充电
输入/带载输出;
◆内置最大 1A 线性充电模式,充电电流外部
可调;
◆涓流/恒流/恒压三段式充电,浮充截止电压
4.20V
(典型值),支持对 0V 电池充电;
◆内置充电能根据温升自动降低充电电流,
130
度开始下降,最低可降至 0
◆充电输入端有防反灌功能,不需要防反灌二
极管;
◆升压使用同步整流电路,最高效率可达 91%,
发热低,固定 5.10V(典型值)输出,不需
要外部电阻设置;
◆升压输出电流 1.0A(BTP=3.6V);具有恒功率输
出功能,有完整的过流,短路保护,内置温度
保护,过温自动停止升压;
◆负载插入自动启动升压,负载移除自动休眠;
◆电池低压提醒功能;
◆支持单灯或者双灯充电与放电指示;
4KV ESD
◆固定开关频率 1MHZ
◆电池过充、过放保护;
ESOP8 小型封装
典型应用
◆ 移动电源;
LED 照明系统;
◆ 玩具;
典型应用电路图
LD1
Red
C2
22uF
L1
4.7uH
C1
10uF
PGND
L1
BTP
VOUT
LX
U1
HT4929
KEY
LD2
Blue
L2
PROG
AGND
SW
6
5
4
3
1
2
8
7
衬底
USB-IN
VCC
D-
D+
GND
1
2
3
4
1
2
3
4
VCC
D-
D+
GND
USB-OUT
5
ID


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