Datasheet

LT2940
19
2940f
TYPICAL APPLICATIONS
1-Cell Monitor with Bottom-Side Sense
Motor Monitor with Circuit Breaker
CMP
+
PMONIMON
CMPOUT
CMPOUT
RESET
LATCH
V
–
V
+
I
–
I
+
V
CC
2940 TA09
R2A
10k
1%
MUR120
R1
10k
1%
R2B
10k
1%
Q1
FDB3632
V
PMON
100W/V
V
IMON
6.5A/V
12V
R
S
LT2940
GND
GE
5BPA34KAA10B
12V, 8A
PM FIELD
25m
2
R5
12.4k
C5
33nF
R4
4.99k
C4
100nF
C10
100µF
25V
R3
10k
k
V
=
k
I
=
OVERCURRENT TRIP = 8A
25m
2
1
3
+
+
–
IMON
PMON
V
–
V
+
I
–
I
+
V
CC
2940 TA08
LT2940
LT1635
GND
C1
100nF
k
V
= = 0.8
k
I
= 200m
121
151
R12
1k
5%
12V
12V
200mV
CYCLON
2V, 4.5AH
DT CELL*
LOAD
–
CHARGER
–
R1
121k
R5
4.99k
R2
30k
1%
R4
12.4k
1W/V
±2.5W MAX
1A/V
±1A MAX
R
S1
215
R
S2
215
+
–
REF
OA
Q1
2N3904
*www.hawkerpowersource.com
[phone]
Q2
2N3904
D1
5.1V
R6
1k
1%
R7
200
1%
R9
200
1%
R
S3
200m
R8
1k
1%
LOAD
+
CHARGER
+