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LP7800S

更新时间： 2024-11-30 17:00:55
品牌 Logo 应用领域
微源半导体 - LOWPOWER /
页数 文件大小 规格书
13页 834K
描述
五合一耳机充电仓芯片,关断型,2LED状态指示

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中文翻译

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LP7800S 数据手册

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LP7800S  
High Efficiency TWS Case Manager  
Features  
General Description  
Maximum input voltage up to 30-V with 15-V  
The LP7800S is an advanced TWS charging case  
management IC targeting to improve the total battery run  
time of the TWS earphones. The IC integrates a linear  
charger which contains completely charge modes with  
up to 350-mA charge current, and a smart discharge  
management module to protect the battery from  
over-discharged to maximize the battery run time. The  
IC features a high efficiency synchronous boost module,  
automatic load detection and Key control discharge,  
automatic shut-down while the discharge current is  
lower than the cut-off current threshold. The IC includes  
charging and discharging status indication through two  
LEDs controller. The quiescent current is less than  
20-µA in standby mode.  
input-over-voltage protection  
Charge management  
- Maximum charge current up to 350-mA  
- Default 4.2-V floating voltage with 1% accuracy  
- Trickle current/constant current/constant voltage  
mode supported  
- Charge termination and automatic re-charge  
- Dynamic power management for different input  
source capacity application  
Discharge management  
- Smart discharge voltage management to maximize  
the battery life  
- 96% peak boost efficiency  
- Automatic load detection  
- Key control  
- Low cut-off discharge current  
- Inductor current-limit protection  
- Short circuit protection  
The device provides various safety features for battery  
charging and discharging, including device junction  
temperature-limit protection for charging by limiting the  
charge current, which is implemented by an internal  
thermal foldback regulation loop, battery discharge  
inductor current-limit protection, VOUT short protection  
and thermal shutdown.  
Temperature Management  
- Thermal foldback at 125℃ junction temperature  
- Thermal shutdown at 150℃ junction temperature  
Built-in charging and discharging indication  
20-µA low quiescent current in standby mode  
The LP7800S is available in a small 8-pin ESOP  
package.  
Applications  
TWS charging case  
Order Information  
LP7800S  
Battery Voltage  
Default:4.20V  
F: Pb-Free  
Marking Information  
Device  
Marking  
LPS  
Package  
Shipping  
4K/REEL  
Package Type  
SP: ESOP-8  
LP7800SSPF  
LP7800S  
YWX  
ESOP-8  
Marking indication:  
Y: Year code. W: Week code. X: Batch numbers.  
LP7800S Rev0.2 May.-2022  
www.lowpowersemi.com  
Email: marketing@lowpowersemi.com  
Page 1 of 13  
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