AP6021 input supply voltage (VIN): 10V lithium battery charger IC

AP6021 is a single step-down switching manganese lithium battery / charge management chip lithium iron phosphate. QFN16 ultra small package with its simple peripheral circuit, such AP6021 ideal for portable devices large current key management application, at the same time, AP6021 built-in input over-current, under-voltage protection, over temperature protection, short circuit protection, battery temperature monitoring, reverse battery protection.
AP6021 has a wide input voltage, trickle charge the battery into pre-charge, constant current, three stages , the pre-charge current trickle charge current is adjusted through an external resistor, up to the maximum charging current. 2A.
AP6021 using 800KHz frequency switching mode makes it smaller peripheral devices may be used, and still maintain a large current charging shouting calorific
constant function of the AP6021, the string 2 can also be used in lithium batteries or input string 4, constant current drive 0.5-7W white LED
characteristics:
single 4.2V 3.6V lithium manganese iron phosphate or a lithium rechargeable
internal power MOSFET , switching the operating mode, less heat generating device, the peripheral simple
programmable charge current, 0.1A-2A
programmable precharge current, 10% -100%
without an external Schottky diode recline Kan
wide operating voltage, and the maximum 9V
two Charging status indicator LED
chip temperature protection, overcurrent, undervoltage protection
battery temperature protection, reverse battery shutdown, short circuit protection
switching frequency of 800KHz, the available inductance 2.2uH-10uH
automatic recharge function
Xiaoyu 1% of the charged voltage control accuracy
Juan flow, constant current, constant voltage charging three sections, to protect the battery
using QFN16 4mm * 4mm small package
absolute maximum ratings:
input supply voltage (VIN): 10V
The BAT: -4.2 V ~ 9V
the BAT shorting Duration: Continuous
maximum junction temperature: 145 ° C
Working temperature range: -40 ° C ~ 85 ° C
Storage Temperature Range: -65 ° C ~ 125 ° C
Lead Temperature (soldering 10 seconds): 260 ° C
application:
the portable device, various chargers
smart phone, PDA, a mobile cellular telephone
MP4.MP5 player, tablet
lamp
power tool
white LED driver