LT1620 Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LT1620 Datasheet PDF : 12 Pages
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LT1620/LT1621
TYPICAL APPLICATIONS
6V
TO 28V
Programmable Constant Current Source
D45VH10
0.1Ω
LT1121CS8-5
470Ω
8 IN
OUT
1
+
SHDN GND
1µF
0.1µF 5
3
18k
SHUTDOWN
VN2222LM
2N3904
22Ω
0.1µF
0.1µF
1
SENSE
8
AVG
2
IOUT
PROG 7
3
LT1620MS8
GND
VCC
6
4
–IN
5
+IN
IOUT
0A TO 1A
0.1µF 10k
1%
IPROG
RPROG
IOUT = (IPROG)(10,000)
RPROG = 40k FOR 1A OUTPUT
LT1620/21 • TA01
6V TO
15V
High Efficiency Buck Constant Current Source
Si9405
50µH
CTX50-4
0.05Ω
22µF
25V
TPS
4.7k
10k
2N4401
MBRS130T3
2N4403
22µF
25V
TPS
IOUT
0A TO 1A
5V
0.1µF
2N7002
820Ω
4.7k
10k
1µF
1
SENSE
16
AVG
3
IOUT
PROG 14
5
LT1620GN
PROG2
13
GND
12
6
AVG2
MODE
8
VCC 11
–IN
9
+IN
0.047 µF 20k
0.1µF
10k
1%
IPROG
RPROG
47k
2N7002
33k IOUT = (IPROG)(20,000)
RPROG = 90k FOR 1A OUTPUT
LT1620/21 • TA04
10
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