LTC4050 LINER [Linear Technology], LTC4050 Datasheet - Page 12

• Manufacturer Part Number: LTC4050
• Description: Lithium-Ion Linear Battery Charger with Thermistor Interface
• Manufacturer: LINER [Linear Technology]

RELATED PARTS
PART NUMBER
LT
LT1512
LT1620
LTC1729
LTC1731
LTC1732
LTC1733
LTC1734
LTC1734L
LTC4052
LTC4053
ThinSOT is a trademark of Linear Technology Corporation.
LTC4050
TYPICAL APPLICATIO S
12
®
1510-5
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone]
DESCRIPTION
500kHz Constant-Voltage/Constant-Current Battery Charger Most Compact, Up to 1.5A, Charges NiCd, NiMH, Li-Ion Cells
SEPIC Battery Charger
Rail-to-Rail Current Sense Amplifier
Termination Controller for Li-Ion
Li-Ion Linear Battery Charger Controller
Firmware Required
Li-Ion Linear Battery Charger Controller
Li-Ion Linear Charger with Thermal Regulation
ThinSOT Li-Ion Linear Battery Charger Controller
Li-Ion Linear Battery Pulse Charger
USB Compatible Li-Ion Battery Charger
0.1 F
1k
Single Cell 4.1V, 1.5A High Efficiency Li-Ion Battery Charger
U
1k
1k
10
3
4
www.linear.com
CHRG
ACPR
TIMER
0.1 F
LTC4050-4.2
NTC
1k
10
2
Linear Charger Using a PNP Transistor
3
4
V
CC
8
CHRG
ACPR
TIMER
SENSE
PROG
GND
LTC4050-4.1
DRV
NTC
BAT
5
2
V
CC
8
9
7
1
6
SENSE
GND
PROG
DRV
BAT
5
19.6k
1nF
9
7
1
6
19.6k
LTC1693-5
2N5087
10 F
10k
4.7
0.47 F
NTHS-1206N02
10k NTC
COMMENTS
V
Precise Output Current Programming, Up to 32V V
Time or Charge Current Termination, Automatic Charger/Battery
Detection, Status Output, Preconditioning, 8-Lead MSOP;
Timer; AC Adapter Present Detection; No Firmware Required
CC/CV Charges Li-Ion Cells, 8-Lead MSOP, Programmable Timer; No
Adapter Present Detection; Programmable Timer; No Firmware Required
Complete Standalone Charger, Thermal Regulator Prevents Overheating
Only Two External Components; No Diode; No Sense Resistor; V
Allows Monitoring I
Detects Maximum I
Firmware Required
USB and Wall Adapter Input, 100mA/500mA or Up to 1.25A Charge
Current Standalone Charger
DALE
1
ZTX749
IN
0.2
I
T
BAT
1
Can Be Higher or Lower Than Battery Voltage, 1.5A Switch
8
+
V
6V
= 500mA
4
IN
3
+
7
MBRM120T3
4.2V
Li-Ion
CELL
4.1V
Li-Ion
CELL
1 F
0.082
1/4W
Si2305DS
15 H
CDRH6D28-150NC
V
6V
IN
MBRS130LT3
CHARGE
T
CHARGE
4050 TA02
+
MBRS130LT3
+
10k NTC
DALE NTHS-1206N02
22 F
220 F
4050 TA04
for Safety; No MOSFET; No Diode; No
LINEAR TECHNOLOGY CORPORATION 2002
LT/TP 0203 2K • PRINTED IN THE USA
OUT
, Up to 10A I
PROG
OUT
4050f