LTC4054X-4.2_15 Datasheet, PDF (16/16 Pages) Linear Technology – Standalone Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT

LTC4054-4.2/LTC4054X-4.2
TYPICAL APPLICATIO S
USB/Wall Adapter Power Li-Ion Charger
5V WALL
ADAPTER
USB
POWER
1k
3
BAT
LTC4054-4.2
4 _VCC
5
1µF
PROG
GND
2 10k
I_BAT
+
2.5k
Li-Ion
CELL
100mA/
500mA
µC
405442 TA05
800mA Li-Ion Charger with External Power Dissipation
V_IN = 5V
1µF
0.25Ω
4
V_CC
800mA
3
BAT
LTC4054-4.2
PROG ⁵
GND
+
2 _1.25k
405442 TA03
Full Featured Single Cell Li-Ion Charger
V_IN = 5V
330Ω
4
1µF
V_CC
3 ^500mA
BAT
LTC4054-4.2
1 _{CHRG PROG} 5
+
GND
2k
2
SHDN
405442 TA02
Basic Li-Ion Charger with Reverse Polarity Input Protection
5V WALL
ADAPTER
4
V_CC
3 ^500mA
BAT
LTC4054-4.2
1µF
PROG ⁵
+
GND
2
2k
405442 TA04
RELATED PARTS
PART NUMBER
LTC1732
LTC1733
LTC1734
LTC1734L
LTC1998
LTC4050
LTC4052
LTC4053
LTC4054L
LTC4056
LTC4057
LTC4410
DESCRIPTION
COMMENTS
Lithium-Ion Linear Battery Charger Controller
Simple Charger uses External FET, Features Preset Voltages, C/10
Charger Detection and Programmable Timer, Input Power Good Indication
Monolithic Lithium-Ion Linear Battery Charger
Standalone Charger with Programmable Timer, Up to 1.5A Charge Current
Lithium-Ion Linear Battery Charger in ThinSOT
Simple ThinSOT Charger, No Blocking Diode, No Sense Resistor Needed
Lithium-Ion Linear Battery Charger in ThinSOT
Low Current Version of LTC1734
Lithium-Ion Low Battery Detector
1% Accurate 2.5µA Quiescent Current, SOT-23
Lithium-Ion Linear Battery Charger Controller
Simple Charger uses External FET, Features Preset Voltages, C/10
Charger Detection and Programmable Timer, Input Power Good Indication,
Thermistor Interface
Monolithic Lithium-Ion Battery Pulse Charger
No Blocking Diode or External Power FET Required
USB Compatible Monolithic Li-Ion Battery Charger Standalone Charger with Programmable Timer, Up to 1.25A Charge Current
10mA to 150mA Standalone Monolithic Lithium-Ion Low Current Version of LTC4054
Linear Battery Charger in ThinSOT
Standalone Lithium-Ion Linear Battery Charger
in ThinSOT
Standalone Charger with Programmable Timer, No Blocking Diode,
No Sense Resistor Needed
Monolithic Lithium-Ion Linear Battery Charger
with Thermal Regulation in ThinSOT
No External MOSFET, Sense Resistor or Blocking Diode Required,
Charge Current Monitor for Gas Gauging
USB Power Manager
For Simultaneous Operation of USB Peripheral and Battery Charging from USB
Port, Keeps Current Drawn from USB Port Constant, Keeps Battery Fresh, Use
with the LTC4053, LTC1733, or LTC4054
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^q FAX: [phone] ^q www.linear.com
405442xf
LT/TP 0903 1K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2003