LTC4054L-4.2 Datasheet, PDF (16/16 Pages) Linear Technology – 150mA Standalone Linear Li-Ion Battery Charger in ThinSOT

LTC4054L-4.2
TYPICAL APPLICATIO S
Full Featured Single Cell Li-Ion Charger
V_IN = 5V
CHARGING
330Ω
4
1µF
V_CC
3 ^100mA
BAT
LTC4054L-4.2
1 _{CHRG PROG} 5
+
GND
2
1.5k
SHDN
5V WALL
ADAPTER
Basic Li-Ion Battery Charger with
Reverse Polarity Input Protection
4
V_CC
3 ^100mA
BAT
LTC4054L-4.2
1µF
PROG ^{5 +}
GND
2 _1.5k
4054L42 TA03
4054L42 TA02
USB/Wall Adapter Power Li-Ion Charger
5V WALL
ADAPTER
USB
POWER
1k
100mA
3
BAT
LTC4054L-4.2 ⁺
4 _VCC
1µF
5
PROG
Li-Ion
CELL
GND
2
1.5k
4054L42 TA05
RELATED PARTS
PART NUMBER
LTC1731
LTC1732
LTC1733
LTC1734
LTC1734L
LTC1998
LTC4050
DESCRIPTION
Lithium-Ion Linear Battery Charger Controller
Lithium-Ion Linear Battery Charger Controller
Monolithic Lithium-Ion Linear Battery Charger
Lithium-Ion Linear Battery Charger in ThinSOT
Lithium-Ion Linear Battery Charger in ThinSOT
Lithium-Ion Low Battery Detector
Lithium-Ion Linear Battery Charger Controller
LTC4052
LTC4053
LTC4054
LTC4056
LTC4057
LTC4058
LTC4410
Monolithic Lithium-Ion Battery Pulse Charger
USB Compatible Monolithic Li-Ion Battery Charger
800mA Standalone Linear Li-Ion Battery Charger
with Thermal Regulation in ThinSOT
Standalone Lithium-Ion Linear Battery Charger
in ThinSOT
Monolithic Lithium-Ion Linear Battery Charger
with Thermal Regulation in ThinSOT
950mA Standalone Li-Ion Charger in 3mm × 3mm
DFN
USB Power Manager
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^q FAX: [phone] ^q www.linear.com
COMMENTS
Simple Charger uses External FET, Features Preset Voltages, C/10
Charger Detection and Programmable Timer
Simple Charger uses External FET, Features Preset Voltages, C/10
Charger Detection and Programmable Timer, Input Power Good Indication
Standalone Charger with Programmable Timer, Up to 1.5A Charge Current
Simple ThinSOT Charger, No Blocking Diode, No Sense Resistor Needed
Low Current Version of LTC1734
1% Accurate 2.5µA Quiescent Current, SOT-23
Simple Charger uses External FET, Features Preset Voltages, C/10
Charger Detection and Programmable Timer, Input Power Good Indication,
Thermistor Interface
No Blocking Diode or External Power FET Required, Safety Current Limit
Standalone Charger with Programmable Timer, Up to 1.25A Charge Current
No External MOSFET, Sense Resistor or Blocking Diode Required,
Charge Current Monitor for Gas Gauging, C/10 Charge Termination
Standalone Charger with Programmable Timer, No Blocking Diode,
No Sense Resistor Needed
No External MOSFET, Sense Resistor or Blocking Diode Required,
Charge Current Monitor for Gas Gauging
USB Compatible, Thermal Regulation Protects Against Overheating
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
4054l42f
LT/TP 1203 1K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2003