TS55101 Datasheet, PDF (1/7 Pages) List of Unclassifed Manufacturers – High Efficiency 2A Li-Ion Battery Charger

PRODUCT PREVIEW
TS55101
Version 0.5
High Efficiency 2A Li-Ion Battery Charger
DESCRIPTION
The TS55101 is a DC/DC synchronous switching
Li-ion Battery Charger with fully integrated power
switches, internal compensation, and full fault
protection. The switching frequency of 1MHz
enables the use of small filter components,
resulting in smaller board space and reduced BOM
costs.
The TS55101 utilizes constant current trickle
charge in Pre-Charge mode. In Full-Charge mode
the output current is limited to 1C. Under Top-Off
mode load conditions, the regulator operates in
voltage mode. When the regulator is disabled (EN
is low), the device draws less than 10uA quiescent
current from the battery.
The TS55101 integrates a wide range of protection
circuitry; including input supply under-voltage
lockout, output over-voltage protection, current
limit, thermal shutdown, and battery temperature
monitoring. Supervisory reporting is done through
the nFLT (Inverted Fault) open drain output to
interface other components in the system. Device
programming is achieved by an I²C interface
through SCL and SDA pins.
FEATURES
 Internal charge current sensing
 V_BAT reverse current blocking
 Wide input voltage range: 4.0V to 16.5V
 Programmable temperature-compensated
termination voltage with +/-0.5% tolerance
 Up to 2.0A of continuous output current in
Constant Current (CC) mode
 User programmable charging current
 High efficiency - 92% at typical load
 Current mode PWM control in constant voltage
 Supervisor for V_BAT reported at the nFLT pin
 Input supply under voltage lockout
 Full protection for over-current, over-temp,
V_BAT over-voltage, and charging timeout
 Charge status indication
 I2C program interface with EEProm registers
 Integrated 50mA LDO output
SUMMARY SPECIFICATIONS
 Junction operating temperature -40C to 125C
 Packaged in a 16pin QFN (3x3)
APPLICATIONS
 Portable Li-Ion Battery Charging
TYPICAL APPLICATION
Specifications subject to change
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