LTC4050 Datasheet, PDF (12/12 Pages) Linear Technology – Lithium-Ion Linear Battery Charger with Thermistor Interface

LTC4050
TYPICAL APPLICATIO S
Linear Charger Using a PNP Transistor
V_IN
6V
MBRM120T3
1k
0.1µF
1k
8
V_CC
3
9
CHRG SENSE
10
ACPR
DRV ⁷
LTC4050-4.2
4
TIMER
1
BAT
6
PROG
NTC GND
2
5
1nF 10k
0.2Ω
1µF
ZTX749
2N5087
I_BAT = 500mA
19.6k
10µF
+ ^4.2V
Li-Ion
CELL
10k NTC
T _{DALE NTHS-1206N02}
4050 TA02
Single Cell 4.1V, 1.5A High Efficiency Li-Ion Battery Charger
V_IN
6V
MBRS130LT3
1k 1k
0.47µF
8
V_CC
9
3
SENSE
CHRG
10
ACPR
7
DRV
LTC4050-4.1
4.7Ω
8
11 ³
LTC1693-5
47
+
0.082Ω
22µF
1/4W
Si2305DS
MBRS130LT3
4
1
TIMER BAT
6
PROG
0.1µF _{NTC GND}
19.6k
T
15µH
CDRH6D28-150NC
2
5
+
10k NTC
DALE
NTHS-1206N02
4.1V
Li-Ion
CELL
+
220µF
4050 TA04
RELATED PARTS
PART NUMBER DESCRIPTION
COMMENTS
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Precise Output Current Programming, Up to 32V V_OUT, Up to 10A I_OUT
Time or Charge Current Termination, Automatic Charger/Battery
Detection, Status Output, Preconditioning, 8-Lead MSOP;
Timer; AC Adapter Present Detection; No Firmware Required
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LTC1732
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Adapter Present Detection; Programmable Timer; No Firmware Required
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Li-Ion Linear Charger with Thermal Regulation
Complete Standalone Charger, Thermal Regulator Prevents Overheating
LTC1734
LTC1734L
LTC4052
ThinSOT Li-Ion Linear Battery Charger Controller
Li-Ion Linear Battery Pulse Charger
Only Two External Components; No Diode; No Sense Resistor; V_PROG
Allows Monitoring I_CHARGE
Detects Maximum I_CHARGE for Safety; No MOSFET; No Diode; No
Firmware Required
LTC4053
USB Compatible Li-Ion Battery Charger
USB and Wall Adapter Input, 100mA/500mA or Up to 1.25A Charge
Current Standalone Charger
ThinSOT is a trademark of Linear Technology Corporation.
4050f
12 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^q FAX: [phone] ^q www.linear.com
LT/TP 0203 2K • PRINTED IN THE USA
© LINEAR TECHNOLOGY CORPORATION 2002