APL3215 Datasheet, PDF (1/18 Pages) Anpec Electronics Coropration – Li+ Charger Protection IC with Integrated P-MOSFET

APL3215/A
Li+ Charger Protection IC with Integrated P-MOSFET
Features
• Input Over-Voltage Protection
• Input Over-Current Protection
• Battery Over-Voltage Protection
• High Immunity of False Triggering
• High Accuracy Protection Threshold
• A Built-In P-MOSFET
• Thermal Shutdown Protection
• Available in a TDFN2x2-8 Package
• Lead Free and Green Devices Available
(RoHS Compliant)
Applications
• Cell Phones
General Description
The APL3215/A provides complete Li+ charger protection
against input over-voltage, input over-current, and battery
over-voltage. When any of the monitored parameters are
over the threshold, the IC removes the power from the
charging system by turning off an internal switch. All pro-
tections also have deglitch time against false triggering
due to voltage spikes or current transients.
The APL3215/A integrates a P-MOSFET with the body di-
ode reverse protection to replace the external P-MOSFET
and Schottky diode for charger function of cell phone’s
PMIC. When the CHRIN voltage drops below V_BAT+20mV,
the internal power select circuit will reverse the body
diode’s terminal to prevent a reverse current flowing from
the battery back to CHRIN pin.
The APL3215/A provides complete Li+ charger protec-
tions and saves the external MOSFET and Schottky diode
for the charger of cell phone’s PMIC. The above features
and small package make the APL3215/A an ideal part for
cell phones applications.
Pin Configuration
ACIN 1
8 OUT
ACIN 2
7 OUT
GND 3
EP
6 CHRIN
VBAT 4
5 GATDRV
TDFN2x2-8
(Top View)
EP = Exposed Pad (connected to ground
plane for better heat dissipation)
Simplified Application Circuit
5V Adapter or USB
ACIN CHRIN
APL3215/A
GATDRV
OUT
GND _VBAT
Li+
Battery
CHRIN
PMIC
GATDRV
ISENS
VBAT
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
1
Rev. A.1 - Sep., 2011
www.anpec.com.tw