Datasheet

LT3650-4.1/LT3650-4.2
8
36504142fc
block DiagraM
365042 BD
+
–
+
–
+
–
+
–
–
+
+
–
+
–
+
–
+
–
TIMER
10mΩ
35V
0.1V
OFFSET
2.9V
1.2V
4.6V
RESET
ENABLE
COUNT
RESET
C/10
PRECONDITION
1.36V
0.29V
46µA
CLP
BOOST
V
IN
SW
SENSE
BAT
RNG/SS
NTC
V
INT
2.7V
1.3V
SS
RESET
1V 0.15V
1.2V 4.2V* 4.1V**
TERMINATE
* V
BAT(FLT)
: 4.2V FOR LT3650-4.2, 4.1V FOR LT3650-4.1
** V
BAT(FLT)
– ∆V
RECHRG
: 4.1V FOR LT3650-4.2, 4.0 FOR LT3650-4.1
50µA
0.7V
CONTROL LOGIC
RIPPLE
COUNTER
STATUS
TIMER
OSC.
NTC
0.2V
125°C
COUNT
COUNT
OSC
1MHz
LATCH
R
S
R
S
C-EA
50µA
30mV
x2.25
10 × R
S
0.3V
V
C
T
DIE
I
TH
MODE
(TIMER OR C/10)
TERMINATE
R
QS
SS
RESET
50mV
UVLO
OVLO
–
+
FAULT
CHRG
STANDBY
SHDN
V-EA
+
–
+
–
+
–
+
–
STANDBY
STANDBY
+
–
+
–
+
–