lt3650-4.1 Linear Technology Corporation, lt3650-4.1 Datasheet - Page 8

• Manufacturer Part Number: lt3650-4.1
• Description: High Voltage 2 Amp Monolithic Li-ion Battery Charger
• Manufacturer: Linear Technology Corporation

LT3650-4.1/LT3650-4.2
BLOCK DIAGRAM
8
CHRG
FAULT
TIMER
0.7V
–
COUNT
RESET
RESET
ENABLE
CONTROL LOGIC
(TIMER OR C/10)
+
NTC
COUNTER
STATUS
125°C
RIPPLE
TIMER
OSC.
TERMINATE
T
DIE
SS
PRECONDITION
COUNT
COUNT
MODE
RESET
1.3V
+
–
C/10
+
–
–
+
–
0.2V
+
46μA
1.36V
0.29V
0.3V
1MHz
OSC
STANDBY
STANDBY
–
2.7V
V
STANDBY
50μA
INT
+
** V
* V
V
C
BAT(FLT)
BAT(FLT)
x2.25
–
S
+
I
LATCH
TH
+
–
: 4.2V FOR LT3650-4.2, 4.1V FOR LT3650-4.1
– ΔV
0.1V
R
Q
C-EA
RECHRG
10 R
UVLO
–
+
1V
–
+
: 4.1V FOR LT3650-4.2, 4.0 FOR LT3650-4.1
OVLO
S
+
–
0.15V
1.2V
4.6V
+
–
OFFSET
35V
+
–
SS
50mV
4.2V*
RESET
TERMINATE
–
+
30mV
4.1V**
R
R
S
S
V-EA
50μA
–
+
1.2V
–
+
–
+
10mΩ
RNG/SS
BOOST
2.9V
SENSE
SHDN
NTC
CLP
BAT
SW
V
365042 BD
IN
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