20
LTC4006
4006fa
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 0506 REV A • PRINTED IN USA
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LT1511 3A Constant-Current/Constant-Voltage Battery Charger High Efficiency, Minimum External Components to Fast Charge Lithium,
NIMH and NiCd Batteries
LT1513 SEPIC Constant- or Programmable-Current/Constant- Charger Input Voltage May be Higher, Equal to or Lower Than Battery Voltage,
Voltage Battery Charger 500kHz Switching Frequency
LTC1709 2-Phase, Dual Synchronous Step-Down Controller Up to 42A Output, Minimum C
IN
and C
OUT
, Uses Smallest Components for
with VID Intel and AMD Processors
LTC1760/ Dual Battery Charger/Selector Simultaneous Charge or Discharge of Two Batteries, DAC Programmable
LTC1960 Current and Voltage, Input Current Limiting Maximizes Charge Current
LTC1778 Wide Operating Range, No R
SENSE
TM
Synchronous 2% to 90% Duty Cycle at 200kHz, Stable with Ceramic C
OUT
Step-Down Controller
LTC3711 No R
SENSE
Synchronous Step-Down Controller 3.5V ≤ V
IN
≤ 36V, 0.925V ≤ V
OUT
≤ 2V, for Transmeta, AMD and Intel
with VID Mobile Processors
LTC3728 2-Phase, Dual Synchronous Step-Down Controller Minimizes C
IN
and C
OUT
, Power Good Output, 3.5V ≤ V
IN
≤ 36V
LTC4002 Li-Ion Battery Charger Controller 1- and 2-Cell Li-Ion Batteries, V
IN
≤ 22V, 500kHz Switching Frequency,
3hr Charge Termination, I
OUT
≤ 4A
LTC4007 High Efficiency, Programmable Voltage, Complete Charger for 3- or 4-Cell Li-Ion Batteries, AC Adapter
Battery Charger with Termination Current Limit, Thermistor Sensor and Indicator Outputs
LTC4008 High Efficiency, Programmable Voltage/Current Constant-Current/Constant-Voltage Switching Regulator, Resistor Voltage/
Battery Charger Current Programming, AC Adapter Current Limit and Thermistor Sensor and
Indicator Outputs
LTC4100 Smart Battery Charger Controller SMBus (Rev 1.1) Compliant, 6.4V ≤ V
IN
≤ 26V, SMBus Accelerator Minimizes
Bus Errors
LTC4412 PowerPath
TM
Ideal Diode or Controller Very Low Loss Replacement for OR’ing Diodes
No R
SENSE
and PowerPath are trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
U
2A Li-Ion Battery Charger
CHG
ACP
C6
0.12µF
THERMISTOR
10k
NTC
R
T
309k
TIMING
RESISTOR
(~2 HOURS)
C5
0.0047µF
C7
0.47µF
R9 32.4k
CHARGING
CURRENT MONITOR
R3
100k
V
LOGIC
DCIN
0V TO 20V
2.5A
R4
6.04k
C1
0.1µF
Q3
INPUT SWITCH
D1: MBRM140T3
Q1, Q2: Si7501DN
Q3: Si5435B
C4
15nF
Q1
Q2
C2
20µF
TO SYSTEM LOAD
D1
L1
22µH 2A
R1
5k
R
SENSE
0.05Ω
R
CL
0.04Ω
C3
20µF
BATTERY
4006 TA02
DCIN
CHG
ACP/SHDN
I
MON
NTC
R
T
I
TH
GND
INFET
CLP
CLN
TGATE
BGATE
PGND
CSP
BAT
16
10
9
14
15
13
12
11
1
5
7
4
6
8
3
2
LTC4006
