lt2940 Linear Technology Corporation, lt2940 Datasheet - Page 17

• Manufacturer Part Number: lt2940
• Description: Power And Current Monitor
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIONS
22.4V TO 72V
10V TO 40V
+
LM334
2N3906
C1
100μF
100V
Q3
k
k
V
V
2940 TA05
V
I
R3
10k
+
–
= 200mΩ
D1
1N457
=
R
15
D2
27V
1
R4
680Ω
3
12V
R6
10k
R5
10k
+
C4
4.7μF
C2
22nF
Wide Input Range 10W PWM Heat Source
R5
6.8k
C1
100μF
50V
CMPOUT
CMPOUT
CMP
V
LATCH
PMON
CC
+
V
R4
68k
PMON
CC
30W Linear Heat Source
I
LT2940
+
GND
200mΩ
R
LT2940
3
I
GND
S
–
IMON
200mΩ
R7
3.3k
R
I
3
C3
470pF
–
S
V
V
IMON
+
–
I
+
V
V
+
–
2940 TA04
51Ω
R6
k
k
t
OFF
V
I
R2
220k
R1
13k
1N4148
=
=
D3
R2
102k
R1
25.5k
233
200mΩ
2ms
13
1N4148
3
D2
BSS123
Q1
VN2222
Q2
R8
1k
R9
10k
12V
C2
100nF
Q2
TIP129
R10
100Ω
25W
50Ω
R7
Q1
FDS3672
HEATSINK
Q = 10W
Q3
D44VH11
R11
100mΩ
10A/V
HEATSINK
Q = 30W
D1
MUR1100E
LT2940
17
2940f