IP138 查看數據表（PDF） - Semelab - > TT Electronics plc
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IP138 Datasheet PDF : 6 Pages
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APPLICATIONS INFORMATION
Remote Sensing
IP138A
VIN
VIN
VO U T
ADJ
RETURN
25 Ω
121 Ω
383 Ω
RP (Max Drop 300mV)
VIN
7
2
6
1 LM301A 3 1k Ω
8
4 5µF
25 Ω
OUTPUT
5V
RL
RETURN
IP138A SERIES
IP138A SERIES
IP338A SERIES
IP338A SERIES
LM138 SERIES
5V Regulator with Shut Down
IP138A
VIN
VIN
VO U T
5V
VO U T
ADJ
1µF
121Ω
1kΩ
TTL
2N3904
383Ω
1kΩ
2816 EEPROM Supply Programmer for
Read/Write Control
+24V
IP138A
VIN
VO U T
ADJ
1µF
249Ω
1%
To VPP
750Ω
1%
READ
WRITE
BYTE ERASE
CHIP ERASE
39kΩ
18kΩ
100k Ω
3.24k Ω
1%
To OE
All gates 7406.
OE VPP
READ
0V 5V
WRITE
BYTE
5V 21V
CHIP ERASE 12V 21V
Improving Ripple Rejection
IP138A
VIN
VIN
VO U T
5V
ADJ
1µF
R1
121 Ω
R2
383 Ω
C1
10 µF
C1 improves ripple rejection.
XC should be small compared to R2.
Temperature Compensated Lead–Acid Battery Charger
IP138A
VIN
1N4001
VIN
VO U T
ADJ
243 Ω
50 Ω
10k Ω
THERMALLY
COUPLE
2N3906
12V
20k Ω
50k Ω
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Prelim. 4/96
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