LTC1732-8.4 查看數據表（PDF） - Linear Technology
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LTC1732-8.4 Datasheet PDF : 12 Pages
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LTC1732-8.4
TYPICAL APPLICATIO
2-Cell 8.4V Linear Charger Using a PNP Pass Transistor
VIN = 10V
MBRM120T3
CHARGE
STATUS
2k
CTIMER*
0.1µF
R2
2k
2
8
SEL
3 CHRG
VCC
9
SENSE
LTC1732-8.4 7
DRV
10 ACPR
1
BAT
4 TIMER
6
PROG
GND
5
C1 R1
RSENSE
C3
1nF 10k 0.25Ω
1µF
Q2
ZTX749
Q1
2N5087
IBAT = 400mA
RPROG
19.6k
+
2-CELL
C2
Li-ION
10µF
*AVX 0603ZC104KAT1A
1732 TA02
RELATED PARTS
PART NUMBER
LT®1510-5
LT1512
LTC1571-1/
LTC1571-2/
LTC1571-5
LT1620
LTC1729
DESCRIPTION
500kHz Constant-Voltage/Constant-Current Battery Charger
SEPIC Battery Charger
200kHz/500kHz 1.5A Constant-Current/Constant-Voltage
Battery Charger
Rail-to-Rail Current Sense Amplifier
Termination Controller for Li-Ion
LTC1730/
LTC4052
LTC1731
LTC1732-4/
LTC1732-4.2
LTC1733
Complete Li-Ion Pulse Battery Charger with Internal FET
and Thermal Regulation
Complete Li-Ion Linear Battery Charger Controller
Complete Linear Battery Charger Controller
for Single Cell Li-Ion Battery
CompleteLi-Ion Linear Battery Charger with Internal FET
LTC1734/
LTC1734L
ThinSOT Li-Ion Linear Charger
LTC4050
Complete Li-Ion Linear Charger with Thermistor Interface
LTC4053
USB Compatible Li-Ion Linear Battery Charger
LTC4412
Low Loss PowerPathTM Controller in ThinSOTTM
ThinSot and PowerPath are trademarks of Linear Technology Corporation.
12 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 q FAX: (408) 434-0507 q www.linear.com
COMMENTS
Most Compact, Up to 1.5A, Charges NiCd, NiMH, Li-Ion Cells
VIN Can Be Higher or Lower Than Battery Voltage, 1.5A Switch
Charges 1- or 2-Cell Li-Ion Batteries, Preset and Adjustable
Battery Voltages, C/10 Charge Detection
Precise Output Current Programming, Up to 32VOUT, Up to 10A IOUT
Time or Charge Current Termination, Automatic Charger/Battery
Detection, Status Output, Preconditioning, 8-Lead MSOP
Efficient 1.5A Charger with Many Features Including
Overcurrent Battery Protection
Single Cell and 2-Cell Li-Ion, C/10 Detection, Complete Charger
No Firmware Required, AC Adapter Indicator
Automatic Charge and Recharge
1.5A Charger with Many Features Including Thermal Feedback for
Increased Charge Current without Exceeding Maximum Temperature
Only Two External Components, VPROG Tracks ICHARGE
No Diode Needed, No Sense Resistor Needed,
50mA to 700mA Charge Current
No Firmware Required, AC Adapter Indicator
Automatic Charge and Recharge
Operate from Wall Adapter Input and/or USB Input, 100mA/500mA up
to 1.25A Charge Current, Thermal Limit Prevent Over Heating,
Standalone Charger.
Automatic Switching Between DC Sources, Load Sharing,
Replaces ORing Diodes
17328f
LT/TP 0203 2K • PRINTED IN THE USA
© LINEAR TECHNOLOGY CORPORATION 2001
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