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GRM188R61A475K

更新时间： 2024-09-16 02:52:55
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安森美 - ONSEMI /
页数 文件大小 规格书
32页 4714K
描述
USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost for 200 mA to 1.45 A Systems

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USB-Compliant Single-Cell  
Li-Ion Switching Charger  
with USB-OTG Boost for  
200 mA to 1.45 A Systems  
FAN54005  
Description  
The FAN54005 is a highly integrated switch−mode  
charger, configurable for 200 mA to 1.45 A systems using  
a single external resistor.  
www.onsemi.com  
The charging parameters and operating modes are program−  
2
mable through an I C Interface that operates up to 3.4 Mbps.  
1
The charger and boost regulator circuits switch at 3 MHz  
to minimize the size of external passive components.  
The FAN54005 provides battery charging in three phases:  
conditioning, constant current and constant voltage.  
To ensure USB compliance and minimize charging time, the  
WLCSP  
20 BALL  
CASE 567SL  
2
input current limit can be changed through the I C interface  
• Charge Parameters Programmable through High−Speed  
by the host processor. Charge termination is determined by  
a programmable minimum current level. A safety timer with  
2
I C Interface (3.4 Mb/s) with Fast Mode Plus  
Compatibility  
♦ Input Current  
2
reset control provides a safety backup for the I C host.  
2
Charge status is reported to the host through the I C port.  
♦ Fast−Charge / Termination Current  
♦ Charger Voltage  
The integrated circuit (IC) automatically restarts the charge  
cycle when the battery falls below an internal threshold. If  
the input source is removed, the IC enters a high−impedance  
mode, preventing leakage from the battery to the input.  
Charge current is reduced when the die temperature reaches  
120°C, protecting the device and PCB from damage.  
The FAN54005 can operate as a boost regulator on  
command from the system. The boost regulator includes a  
soft−start that limits inrush current from the battery and uses  
the same external components used for charging the battery.  
♦ Termination Enable  
• 3 MHz Synchronous Buck PWM Controller with Wide  
Duty Cycle Range  
• Small Footprint 1 mH External Inductor  
• Safety Timer with Reset Control  
• 1.8 V Regulated Output from VBUS for Auxiliary Circuits  
• Dynamic Input Voltage Control Automatically Reduces  
Charging Current with Weak Input Sources  
• Low Reverse Leakage to Prevent Battery Drain to VBUS  
• 5 V, 500 mA Boost Mode for USB OTG for 3.0 V to  
4.5 V Battery Input  
Features  
• Fully Integrated, High−Efficiency Charger for  
Single−Cell Li−Ion and Li−Polymer Battery Packs  
• Charge Voltage Accuracy: 0.5% at 25°C  
Charge Voltage Accuracy: 1% from 0 to 125°C  
• Available in a 1.96 x 1.87 mm, 20−bump, 0.4 mm Pitch  
WLCSP Package  
• Supports 200 mA to 1.45 A Systems  
95% Efficiency for 200 mA−Hour Batteries  
94% Efficiency for 500 mA−Hour Batteries  
90% Efficiency for 1.0 A−Hour Batteries  
Applications  
• Wireless Speakers, Headphones  
• Cell Phones, Gaming Devices  
• Toys, Drones, Digital Cameras  
• IoT Devices  
•
•
5% Input Current Regulation Accuracy  
5% Charge Current Regulation Accuracy  
• 20 V Absolute Maximum Input Voltage  
• 6 V Maximum Input Operating Voltage  
• E−Cigs, Vapes  
ORDERING INFORMATION  
†
Part Number  
Temperature Range  
Package  
PN Bits: IC_INFO[4:2]  
Packing  
FAN54005UCX  
−40°C to +85°C  
20−Bump, Wafer−Level Chip−Scale Package  
(WLCSP), 0.4 mm Pitch, 1.96 x 1.87 mm  
101  
Tape and Reel  
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging  
Specifications Brochure, BRD8011/D.  
© Semiconductor Components Industries, LLC, 2015  
1
Publication Order Number:  
November, 2019 − Rev. 4  
FAN54005/D  
 
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