TS55001 Datasheet, PDF (1/22 Pages) List of Unclassifed Manufacturers – High Efficiency Li-Ion Battery Charger

TS55001
Version 1.3
High Efficiency Li-Ion Battery Charger
DESCRIPTION
The TS55001 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 regulation in Full Charge mode is Constant-
Current (CC). Once termination voltage is reached, the
regulator operates in voltage mode. When the regulator
is disabled (EN is low), the device draws 10uA
quiescent current.
The TS55001 includes supervisory reporting 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.
APPLICATIONS
 Portable battery chargers
 Smart Phones
 Laptops
 Tablets / eReaders
FEATURES
 V_BAT reverse current blocking
 Programmable temperature-compensated termination
voltage with +/- 1% tolerance
 Up to 1.5A of continuous output current in Full
Charge Constant-Current (CC) mode
 User programmable charging current
 High efficiency – up to 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 V_BAT over-current, over-temp,
over-voltage, and charging timeout
 Charge status indication
 I2C program interface with EEPROM registers
SUMMARY SPECIFICATIONS
 Wide input voltage range: V_BAT + 0.3V (3.5V min) to
7.2V
 Packaged in a 16pin QFN (4x4)
TYPICAL APPLICATION
CIN
CVdd
VDD
RPULLUP
(optional)
VIN
VTH_REF
GND
VTHERM
VDD
SCL
SW
TS55001
VSENSE
SDA
VBAT
EN
PG
PGND
LOUT
RSENSE
VDD
RPULLUP
(optional)
RREF
COUT
Battery
RTHM
Specifications subject to change
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