ltc4007eufd-1-trpbf Linear Technology Corporation, ltc4007eufd-1-trpbf Datasheet - Page 21

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

APPLICATIO S I FOR ATIO
0V TO 20V
V
LOBAT
FAULT
SHDN
LOGIC
DCIN
FLAG
CHG
ACP
THERMISTOR
I
3A
CL
R10
100k
R11
100k
Figure 11. Circuit Application (16.8V/3A) to Automatically Trickle Charge Depleted Batteries
U
R12
100k
R9 32.4k 1%
C7
0.47µF
309k
U
1%
R
T
*
*
TIMING RESISTOR
(~2 HOURS)
3C4C
CHEM
LOBAT
I
ACP
SHDN
FAULT
CHG
FLAG
NTC
R
CL
T
W
LTC4007
TGATE
BGATE
INFET
PGND
PROG
DCIN
GND
CLP
CLN
CSP
BAT
ITH
U
C1
0.1µF
R7
6.04k
1%
INPUT SWITCH
C6
0.12µF
Q3
C5
0.0047µF
3.01k
1%
R4
52.3k
C4
15nF
R14
1%
R5 3.01k 1%
R6
26.7k
1%
Q4
4.99k
1%
R1
Q1
Q2
R
0.033Ω
1%
CL
4007 F11
*PIN OPEN
D1: MBRM140T3
Q1: Si4431ADY
Q2: FDC645N
Q4: 2N7002 OR BSS138
C2
20µF
15µH 3A
D1
L1
0.033Ω
R
SENSE
1%
LTC4007
C3
20µF
MONITOR
(CHARGING
CURRENT
MONITOR)
21
SYSTEM
LOAD
BAT
4007fa