LTC4008
24
4008fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2003
LT 0710 REV B • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
NiMH/4A Battery Charger
BATMON
V
FB
I
CL
ACP/SHDN
FAULT
FLAG
NTC
R
T
I
TH
GND
I
CL
ACP
FAULT
FLAG
DCIN
INFET
CLP
CLN
TGATE
BGATE
PGND
CSP
BAT
PROG
LTC4008
R7
6.04k
1%
R9
13.3k
0.25%
RT
150k
C6
0.12μF
THERMISTOR
10k
NTC
C7
0.47μF
R12
100k
R8
147k
0.25%
R10 32.4k 1%
R11
100k
V
LOGIC
DCIN
0V TO 20V
C1
0.1μF
Q3
INPUT SWITCH
C4
0.1μF
Q1
Q2 D1
C2
20μF
L1
10μH
R1 4.99k 1%
R4 3.01k 1%
R5 3.01k 1%
R
SENSE
0.025Ω
1%
R
CL
0.02Ω
1%
C3
20μF
NiMH
BATTERY
PACK
CHARGING
CURRENT
MONITOR
SYSTEM
LOAD
R6
26.7k
1%
C5
0.0047μF
D1: MBRS130T3
Q1: Si4431BDY
Q2: FDC645N
4008 TA02
PART NUMBER DESCRIPTION COMMENTS
LT
®
1511 3A Constant-Current/Constant-Voltage Battery Charger High Effi ciency, Minimum External Components to Fast Charge Lithium,
NIMH and NiCd Batteries
LT1513 Sepic Constant- or Programmable-Current/Constant-
Voltage Battery Charger
Charger Input Voltage May be Higher, Equal to or Lower Than Battery Voltage,
500kHz Switching Frequency
LT1571 1.5A Switching Charger 1- or 2-Cell Li-Ion, 500kHz or 200kHz Switching Frequency, Termination Flag
LTC1628-PG 2-Phase, Dual Synchronous Step-Down Controller Minimizes C
IN
and C
OUT
, Power Good Output, 3.5V ≤ V
IN
≤ 36V
LTC1709 Family 2-Phase, Dual Synchronous Step-Down Controller
with VID
Up to 42A Output, Minimum C
IN
and C
OUT
, Uses Smallest Components for
Intel and AMD Processors
LTC1729 Li-Ion Battery Charger Termination Controller Trickle Charge Preconditioning, Temperature Charge Qualifi cation, Time or
Charge Current Termination, Automatic Charger and Battery Detection, and
Status Output
LT1769 2A Switching Battery Charger Constant-Current/Constant-Voltage Switching Regulator, Input Current
Limiting Maximizes Charge Current
LTC1778 Wide Operating Range, No R
SENSE
™ Synchronous
Step-Down Controller
2% to 90% Duty Cycle at 200kHz, Stable with Ceramic C
OUT
LTC1960 Dual Battery Charger/Selector with SPI Interface Simultaneous Charge or Discharge of Two Batteries, DAC Programmable
Current and Voltage, Input Current Limiting Maximizes Charge Current
LTC3711 No R
SENSE
Synchronous Step-Down Controller
with VID
3.5V ≤ V
IN
≤ 36V, 0.925V ≤ V
OUT
≤ 2V, for Transmeta, AMD and Intel Mobile
Processors
LTC4006 Small, High Effi ciency, Fixed Voltage, Lithium-Ion
Battery Charger with Termination
Complete Charger for 3- or 4-Cell Li-Ion Batteries, AC Adapter Current Limit
and Thermistor Sensor, 16-Pin Narrow SSOP Package
LTC4007 High Effi ciency, Programmable Voltage
Battery Charger with Termination
Complete Charger for 3- or 4-Cell Li-Ion Batteries, AC Adapter Current Limit,
Thermistor Sensor and Indicator Outputs
LTC4100 Smart Battery Charger Controller SMBus Rev 1.1 Compliant
