ltc4006egn-6-trpbf Linear Technology Corporation, ltc4006egn-6-trpbf Datasheet - Page 7

• Manufacturer Part Number: ltc4006egn-6-trpbf
• Description: 4a, High Efficiency, Standalone Li-ion Battery Charger
• Manufacturer: Linear Technology Corporation

BLOCK DIAGRA
0.1µF
R
Q3
CL
Q1
Q2
L1
V
IN
15nF
5.1k
ACP/SHDN 3
20µF
BGATE
TGATE
PGND
INFET
DCIN
GND
CLN
CLP
16
11
12
13
15
14
1
5
100mV
W
–
+
WATCH DOG
CL1
5.8V
DETECT
OSCILLATOR
LOGIC
DCIN
PWM
t
OFF
g
m
= 1.5m
1.19V
CHARGE
I
REV
Ω
Q
1.28V
R
S
1.105V
708mV
I
CL
+
–
EA
CLN
OV
g
m
= 1m
RESTART
LOBAT
Ω
TIMER/CONTROLLER
g
m
÷ 5
I
35mV
CMP
= 1m
11.67µA
Ω
BUFFERED I
CA2
CA1
TH
–
+
T
–
+
+
–
–
+
BAD
C/10
–
+
25µA
17mV
–
1.19V
THERMISTOR
OSCILLATOR
+
3k
3k
9k
397mV
R
26.44k
R
52.87k
IMON1
IMON2
10
2
4
6
9
7
8
0.12µF
4.7nF
CHG
R
NTC
BAT
CSP
I
I
TH
MON
6.04k
LTC4006
T
0.47µF
R
32.4k
SENSE
100k
R
RT
4006 BD
V
LOGIC
20µF
10k
NTC
4006fa
7