LT3651-8.2_15 Datasheet, PDF (9/24 Pages) Linear Technology – Monolithic 4A High Voltage 2-Cell Li-Ion Battery Charger

BLOCK DIAGRAM
LT3651-8.2/LT3651-8.4
I_LIM
28
CLN
30
CLP
29
RT
36
TIMER
24
CHRG
26
FAULT
25
50µA
++
–
A12
TIMER OSC
0.2V
A11
RIPPLE COUNTER
COUNT
RESET
COUNT
COUNT
RESET MODE
ENABLE (TIMER
OR C/10)
CONTROL LOGIC
TERMINATE
SS/RESET
STATUS
C/10
PRECONDITION
NTC
V_INT
2.7V
STANDBY
UVLO
8.7V
35V
OVLO
OSC
A10
125°C
T_J
STANDBY
R
LATCH
SQ
+
– _A14
V_C
C-EA
A9
+
0.3V
I_TH
A13
V_IN
REV CUR
INHIBIT
R_S
R_S
V-EA
10R_S
BOOST
5
V_IN
32, 33, 34
SW
7, 11-18, 22, 38
SENSE
4
BAT
3
RNG/SS
35
A8
0.1V ₊
1V
SS/RESET
+
0.15V
50µA
A7
5.65V^†
×2.25
++
+
A6
SHDN
27
50µA ^1.36V
NTC
1
0.29V
+ ^A1
–
– ^A2
+
1.3V
46µA
STANDBY
A3
0.7V
*V_BAT(FLT): 8.2V FOR LT3651-8.2, 8.4V FOR LT3651-8.4
**_{†VVBBAATT((FPLRTE))}–: _{5∆.V6R5VECFHORRG}:L8TV36F5O1R-8L.T23, 655.81V-8F.2O,R8L.2TV36F5O1R-8L.T43651-8.4
1.2V 8.2V*
8.0V**
A4
TERMINATE
+ ^A5
2.4V –
GND 6, 23, 31, 37
ACPR
2
365148284 BD
For more information www.linear.com/LT3651-8.2
36518284fa
9