ltc4007eufd-1-trpbf Linear Technology Corporation, ltc4007eufd-1-trpbf Datasheet - Page 24

• Manufacturer Part Number: ltc4007eufd-1-trpbf
• Description: 4a, High Efficiency, Standalone Li-ion Battery Charger
• Manufacturer: Linear Technology Corporation

LTC4007
TYPICAL APPLICATIO
RELATED PARTS
24
PART NUMBER
LT
LT1513
LT1571
LTC1628-PG
LTC1709
LTC1729
LT1769
LTC1778
LTC1960
LTC3711
LTC4006
LTC4008
No R
®
1511
0V TO 20V
SENSE
V
LOBAT
FAULT
SHDN
LOGIC
FLAG
DCIN
CHG
ACP
THERMISTOR
I
3A
is a trademark of Linear Technology Corporation.
CL
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
NTC
10k
R10
100k
DESCRIPTION
Constant-Current/Constant-Voltage 3A Battery
Charger with Input Current Limiting
SEPIC Constant- or Programmable-Current/
Constant-Voltage Battery Charger
1.5A Switching Charger
2-Phase, Dual Synchronous Step-Down Controller
2-Phase, Dual Synchronous Step-Down Controller
with VID
2A Switching Battery Charger
Wide Operating Range, No R
Step-Down Controller
Dual Battery Charger/Selector with SPI Interface
No R
with VID
Small, High Efficiency, Fixed Voltage,
Lithium-Ion Battery Charger
High Efficiency, Programmable Voltage/Current
Battery Charger
SENSE
R11
100k
●
FAX: [phone]
TM
R12
100k
R9 32.4k 1%
Synchronous Step-Down Controller
C7
0.47µF
309k
R
1%
RT
*
TIMING RESISTOR
(~2 HOURS)
U
3C4C
CHEM
LOBAT
I
ACP
SHDN
FAULT
CHG
FLAG
NTC
R
CL
T
SENSE
●
LTC4007
www.linear.com
Synchronous
BGATE
TGATE
INFET
PGND
PROG
12.6V, 4A Li-Ion Battery Charger
DCIN
GND
CLP
CLN
CSP
BAT
ITH
C1
0.1µF
R7
6.04k
1%
INPUT SWITCH
C6
0.12µF
COMMENTS
High Efficiency Current Mode PWM with 4A Internal Switch
Charger Input Voltage May Be Higher, Equal to or Lower Than Battery Voltage;
Charges Any Number of Cells Up to 20V, 500kHz Switching Frequency
1- or 2-Cell Li-Ion, 500kHz or 200kHz Switching Frequency, Termination Flag
Minimizes C
Up to 42A Output, Minimum C
Intel and AMD Processors
Constant-Current/Constant-Voltage Switching Regulator, Input Current
Limiting Maximizes Charge Current
2% to 90% Duty Cycle at 200kHz, Stable with Ceramic C
Simultaneous Charge or Discharge of Two Batteries, DAC Programmable
Current and Voltage, Input Current Limiting Maximizes Charge Current
3.5V ≤ V
Mobile Processors
Constant-Current/Constant-Voltage Switching Regulator with Termination
Timer, AC Adapter Current Limit and Thermistor Sensor in a Small
16-Pin Package
Constant-Current/Constant-Voltage Switching Regulator, Resistor Voltage/
Current Programming, AC Adapter Current Limit and Thermistor Sensor
Q3
3.01k 1%
R4
IN
C5
0.0047µF
R5 3.01k 1%
≤ 36V, 0.925V ≤ V
R
IN
C4
15nF
26.7k
PROG
and C
4.99k
1%
1%
R1
OUT
Q1
Q2
, Power Good Output, 3.5V ≤ V
R
0.033Ω
1%
4007 TA02
CL
*PIN OPEN
D1: MBRS130T3
Q1: Si4431ADY
Q2: FDC645N
20µF
C2
OUT
IN
D1
and C
≤ 2V, for Transmeta, AMD and Intel
10µH 4A
OUT
L1
© LINEAR TECHNOLOGY CORPORATION 2003
, Uses Smallest Components for
R
0.025Ω
SENSE
1%
LT 0606 REV A • PRINTED IN USA
IN
OUT
≤ 36V
C3
20µF
SYSTEM
LOAD
BAT
CHARGING
CURRENT
MONITOR
4007fa