The JTMA8512 is a monolithic switching charger for 2-series

JTMA8512

The JTMA8512 is a monolithic switching charger for 2-series Li-ion cells battery, it achieves up to 2A
charge current with voltage mode PWM step- down (buck) switching architecture.
JTMA8512 regulates the battery voltage and charge current with CV (constant voltage) and CC (constant
current) loops. Fault condition includes thermal shutdown、time out and output short. Other safety features
include battery temperature monitoring and charge status indication.
The JTMA8512 is available in 14-pin TSSOP package.

■ Features
● 100% Maximum Duty Cycle
● 0.3% Charge Voltage Accuracy
● Low 10uA Reverse Battery Drain Current
● Programmable Charge Current Up To 2A
● Fixed 400 kHz Frequency
● Build-in Battery Detection
● Suitable For 2-Cell Li-Ion Batteries
● Automatic Battery Recharge
● Soft Start
● Battery Temperature Monitoring
● Thermal Shutdown and Protection
● Status Indication
● 18V Maximum Input Voltage Rating
● Ambient Temperature Range: -20℃～70℃
● 14-Lead TSSOP Package Available

■ Applications
● Handheld Products
● Portable Equipment
● Distributed Power Systems
● Portable DVD Players
● Notebook
● Chargers for 2-cell Lion Batteries

■ Pin Configuration

■ Typical Application Circuit

资料下载（DownLoad PDF）

JTMA8512A

相关产品

Part number	Switching freq(kHz)	Vin(max)(v)	Cells	Integrated FET	Charge current(max)(mA)	Control topology	Package
JTMA8512	400	18	2	NO	2000	Switch mode	TSSOP-14
JTMA8513	400	4.5-12	1月2日	NO	开关式单节、双节锂电池充电管理芯片.2A充电电流	SWITCH-MODE	TSSOP-14
A6100/A6100S					开关式内置功率管、单节2.0A 锂电池充电管理芯片
JTMA8826					2A充电、3A升压输出	移动电源二合一芯片	TSSOP16
A308	400	16	2	N	2000	Switch mode	SOP14
JTMA8511	500	6.5	1	NO	2500	Switch mode	TSSOP16
JTMA8521		7.5	1	Yes	600	Linear	MSOP-8

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