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FAN54510AUCX

更新时间： 2024-11-15 02:49:11
品牌 Logo 应用领域
安森美 - ONSEMI /
页数 文件大小 规格书
61页 6841K
描述
3.2 A Dual Input, Switch Mode Charger with Power Path

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FAN54510AUCX 数据手册

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FAN54511  
3.2 A Dual Input, Switch  
Mode Charger with Power  
Path  
Description  
www.onsemi.com  
2
The FAN5451x family of chargers includes an I C controlled 3.2 A  
USB−compliant switch−mode charger.  
To facilitate fast system startup, the IC includes an optimized Power  
Path circuit which also accurately measures battery currents during  
charging and provides low impedance during discharge.  
The charging parameters and operating modes are programmable  
VIN  
2
PMID  
REG  
LDO  
VBUS  
CBUS  
C
through an I C Interface. Charge status is reported back to the host  
IN  
2
CMID  
through the I C port and the / STAT pin.  
D+ /GPO1  
CREG  
SYS USB  
PHY  
The FAN5451x provides battery charging in three modes:  
Pre−Charge (IPP), Constant Current (CC) and Constant Voltage (CV).  
The charger can automatically restart the charge cycle when the  
battery falls below a restart voltage threshold. If the input source is  
removed, the IC enters a high−impedance mode, blocking battery  
current from leaking to either input.  
D−/ GPO2  
CLDO1  
BOOT  
VSYS  
VSYS  
To  
System  
CBOOT  
D1  
SW  
L1  
RD  
SYS  
/STAT  
CSYS  
BAT  
FAN5451x  
CBAT  
ILIM  
DIS  
BATSNS  
NTC  
SDA  
The FAN5451x is available in a 63−bump, 0.4 mm pitch WLCSP  
package.  
RREF  
REF  
CREF  
SCL  
/INT  
Battery  
T
+
R
PU  
/BUSOK  
/INOK  
To  
PMIC  
/SHIP  
Features  
• Fully Integrated, High−Efficiency Charger for Single−Cell Li−Ion  
and Li−Polymer Battery Packs  
AGND  
PGND  
• Power Path Circuit ensures Fast System Startup with a Dead Battery  
Figure 1. Typical Application  
• 95% Charge Efficiency  
• Charge Current Programmable up to 3.2 A  
• 10 mV Float Voltage Accuracy  
ORDERING INFORMATION  
•
5% Charge Current Regulation Accuracy  
See detailed ordering and shipping information on page 2 of  
this data sheet.  
• 5 V, 1.5 A Boost Mode for USB OTG  
• 22 V DC Withstand Voltage on VBUS  
• 13.25 V Maximum Input Operating Voltage  
• −2 V Input Reverse Polarity Protection  
Benefits  
• Secondary Input for Wireless Charging  
• Pin or Software Configurable Hardware Reset for  
Quick System Restart  
• Battery Temperature Sensing Ensures Safe−To−Charge  
Operation (JEITA)  
• Dynamic Input Voltage Control (DIVC) for Operation  
with Weak Adapters  
• USB BC1.2 Compatible  
• Programmable 10 mA LDO  
• Programmable Safety Timer with Reset Control  
• Pin Configurable Ship Mode prevents Battery  
Discharge to System Load  
• Thermal Shutdown and Programmable Thermal  
Regulation  
2
• High−Speed I C Interface  
(3.4 Mb/s) with Fast Mode Plus Compatibility  
Applications  
• Smart Phones  
• Tablets  
• e−Books  
• Li Ion Powered Devices  
© Semiconductor Components Industries, LLC, 2006  
1
Publication Order Number:  
April, 2018 − Rev. 4  
FAN54511/D  
1234567...61

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