LTC4008 Linear Technology, LTC4008 Datasheet - Page 19

• Manufacturer Part Number: LTC4008
• Description: Multi-Chemistry Battery Charger
• Manufacturer: Linear Technology

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APPLICATIO S I FOR ATIO
0V TO 28V
V
FAULT
LOGIC
FLAG
DCIN
I
CL
D1: MBRS130T3
D2: SBM540
Q1: Si4431BDY
Q2: FDC645N
Q4: Si7423DN
Z1 VALUE SIZED FOR ABSOLUTE MAXIMUM ADAPTER VOLTAGE
R13
1.5k
Z1
Q3
2N7002
U
THERMISTOR
10k
NTC
R11
100k
0.47µF
U
C7
R12
100k
R9
15k
0.25%
150k
W
Figure 10. Typical LTC4008-1 Application (12.3V/4A)
R
T
R10 32.4k 1%
R7
6.04k
1%
C6
0.12µF
0.25%
140k
R8
U
BATMON
V
I
SHDN
FAULT
FLAG
NTC
R
I
GND
CL
TH
FB
T
LTC4008-1
0.0047µF
BGATE
TGATE
PGND
PROG
DCIN
CLN
CSP
CLP
BAT
C1
0.1µF
C5
R4 3.01k 1%
C4
15nF
R5 3.01k 1%
R6
28.7k
1%
4.99k
1%
R1
Q1
Q2
R
0.02Ω
1%
CL
D1
10µH
C2
20µF
L1
0.025Ω
R
SENSE
1%
CHARGE
SYSTEM
LOAD
C3
20µF
4008 F10
LTC4008
Q4
D2
Q5
2N7002
R26
150k
19
Li-Ion
BATTERY
4008fa