ltc4002 Linear Technology Corporation, ltc4002 Datasheet - Page 16

• Manufacturer Part Number: ltc4002
• Description: Standalone Li-ion Switch Mode Battery Charger
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIO
LTC4002
PART NUMBER
LTC1732-8.4
LTC1733
LTC1734/LTC1734L
LTC1980
LTC4006/LTC4007
LTC4008
LTC4052/LTC1730
LTC4053
LTC4054
LTC4056
LTC4412/LTC4413
PowerPath and ThinSOT are trademarks of Linear Technology Corporation.
16
RELATED PARTS
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
DESCRIPTION
2-Cell Li-Ion Linear Battery Charger
Li-Ion Battery Charger with Termal Regulation
SOT-23 Li-Ion Battery Chargers
Combination Battery Charger and DC/DC Converter
4A Multiple Cell Li-Ion, NiCd, NiMH, Lead Acid
Battery Chargers
Integrated Pulse Chargers for a 1-Cell Li-Ion Battery
USB Compatible Li-Ion Linear Battery Charger
Standalone Linear Li-Ion Battery Charger
with Integrated Pass Transistor in ThinSOT
Standalone SOT-23 Li-Ion Linear Battery Charger
Low Loss PowerPath
●
FAX: [phone]
TM
U
Controllers in ThinSOT
R1
100k
●
www.linear.com
R
2.2k
C
C
0.47µF
C3
0.1µF
CER
C
2-Cell 8.4V, 2A Li-Ion Battery Charger
5
1
CHRG
COMP
LTC4002ES8-8.4
NTC
TM
8
T
V
10k
NTC
CC
2
SENSE
GND
GATE
BAT
4
NTC: DALE NTHS-1206N02
3
7
6
COMMENTS
8.8V ≤ V
Standalone Charger
Standalone Charger, Constant-Current/Constant-Voltage/
Constant-Temperature, Integrated MOSFET, No External Sense
Resistor or Blocking Diodes
Need Only Two External Components, Monitors Charge Current, No
Reverse Diode or Sense Resistor Required, 50mA to 700mA
Wall Adapter May Be Above or Below Battery Voltage, Standalone,
1-, 2-Cell Li-Ion, Also for Charging NiMH and NiCd Batteries
6V ≤ V
Digital Interface I/O, Small Inductor
0.35Ω Internal N-FET Requires No Blocking Diode,
Current Limit for Safety
Charges from USB Input or AC/DC, 100mA/500mA Up to 1.25A,
Thermal Regulation, Fully Integrated
Thermal Regulation Prevents Overheating, C/10 Termination,
C/10 Indicator
Charge Termination Included, I
Automatic Switching Between DC Sources, Simplified Load Sharing
M2
1/2 Si9933ADY
M1
1/2 Si9933ADY
R
50mΩ
L1
6.8µH
SENSE
C2
22µF
CER
IN
+
IN
≤ 28V, High Efficiency ≥ 90%, V
≤ 12V; Programmable Charge Termination Timer
D2
B330
4002 TA03
8.4V
Li-Ion
BATTERY
V
9V TO 12V
IN
C1
10µF
CER
CH
© LINEAR TECHNOLOGY CORPORATION 2003
≤ 700mA, 8-Lead ThinSOT Package
OUT
LT/TP 1104 1K PRINTED IN USA
≤ 28V,
4002f