LTC4061 Datasheet, PDF (20/20 Pages) Linear Technology – Standalone Linear Li-lon Battery Charger with Thermistor Input

LTC4061
TYPICAL APPLICATIO S
Full-Featured Li-Ion Charger
(Using Time Termination)
V_IN
5V
1µF
1k
10
5
V_CC
1
CHRG
BAT
3
TIMER
9
PROG
6
C/5
ACPR ⁴
0.1µF
1.25k
8 ^LTC4061
2
I_DET
NTC
GND
619Ω
11
1k
800mA
V_IN
100k _{+ SINGLE CELL}
Li-Ion BATTERY
100k
NTC
4061 TA02
USB/Wall Adapter Power Li-Ion Charger
(Using Charge Current Termination)
5V
WALL ADAPTER
USB
POWER
10 _VCC
1
BAT ₊
1µF
LTC4061
6
µC C/5
9
PROG
Li-Ion
CELL
3
TIMER
8
I_DET
GND
1k
2k 2.5k
11
4061 TA03
RELATED PARTS
PART NUMBER
Battery Chargers
LTC1734
LTC1734L
LTC4002
LTC4050
DESCRIPTION
Lithium-Ion Linear Battery Charger in ThinSOT^TM
Lithium-Ion Linear Battery Charger in ThinSOT
Switch Mode Lithium-Ion Battery Charger
Lithium-Ion Linear Battery Charger Controller
LTC4052
LTC4053
LTC4054
LTC4057
LTC4058
LTC4059
Monolithic Lithium-Ion Battery Pulse Charger
USB Compatible Monolithic Li-Ion Battery Charger
Standalone Linear Li-Ion Battery Charger
with Integrated Pass Transistor in ThinSOT
Lithium-Ion Linear Battery Charger
Standalone 950mA Lithium-Ion Charger in DFN
900mA Linear Lithium-Ion Battery Charger
LTC4063
Li-Ion Charger with Linear Regulator
LTC4411/LTC4412 Low Loss PowerPath^TM Controller in ThinSOT
Power Management
LTC3405/LTC3405A 300mA (I_OUT), 1.5MHz, Synchronous Step-Down
DC/DC Converter
LTC3406/LTC3406A 600mA (I_OUT), 1.5MHz, Synchronous Step-Down
DC/DC Converter
LTC3411
1.25A (I_OUT), 4MHz, Synchronous Step-Down
DC/DC Converter
LTC3440
600mA (I_OUT), 2MHz, Synchronous Buck-Boost
DC/DC Converter
LTC4413
Dual Ideal Diode in DFN
ThinSOT and PowerPath are trademarks of Linear Technology Corporation.
20 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^● FAX: [phone] ^● www.linear.com
COMMENTS
Simple ThinSOT Charger, No Blocking Diode, No Sense Resistor Needed
Low Current Version of LTC1734, 50mA ≤ I_CHRG ≤ 180mA
Standalone, 4.7V ≤ V_IN ≤ 24V, 500kHz Frequency, 3 Hour Charge Termination
Features Preset Voltages, C/10 Charger Detection and Programmable Timer,
Input Power Good Indication, Thermistor Interface
No Blocking Diode or External Power FET Required, ≤1.5A Charge Current
Standalone Charger with Programmable Timer, Up to 1.25A Charge Current
Thermal Regulation Prevents Overheating, C/10 Termination,
C/10 Indicator, Up to 800mA Charge Current
Up to 800mA Charge Current, Thermal Regulation, ThinSOT Package
C/10 Charge Termination, Battery Kelvin Sensing, ±7% Charge Accuracy
2mm x 2mm DFN Package, Thermal Regulation, Charge Current Monitor
Output
Up to 1A Charge Current, 100mA, 125mV LDO, 3mm × 3mm DFN
Automatic Switching Between DC Sources, Load Sharing,
Replaces ORing Diodes
95% Efficiency, V_IN: 2.7V to 6V, V_OUT = 0.8V, I_Q = 20µA, I_SD < 1µA,
ThinSOT Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT = 0.6V, I_Q = 20µA, I_SD < 1µA,
ThinSOT Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT = 0.8V, I_Q = 60µA, I_SD < 1µA,
MS Package
95% Efficiency, V_IN: 2.5V to 5.5V, V_OUT = 2.5V, I_Q = 25µA, I_SD < 1µA,
MS Package
2-Channel Ideal Diode ORing, Low Forward ON Resistance, Low Regulated
Forward Voltage, 2.5V ≤ V_IN ≤ 5.5V
4061fa
LT/TP 0305 1K REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2004