IP138A SERIES
IP138A SERIES
IP338A SERIES
IP338A SERIES
LM138 SERIES
APPLICATIONS INFORMATION
Remote Sensing
IP138A
V
IN
V
IN
ADJ
V
IN
7
5V Regulator with Shut Down
IP138A
OUTPUT
5V
V
IN
V
IN
ADJ
1
µ
F
V
O U T
R
P
(Max Drop 300mV)
V
O U T
121
Ω
5V
V
O U T
25
Ω
121
Ω
2
6
1
LM301A
3
8
4
1k
Ω
5
µ
F
R
L
TTL
1 k
Ω
2N3904
1 k
Ω
383
Ω
383
Ω
25
Ω
RETURN
RETURN
2816 EEPROM Supply Programmer for
Read/Write Control
IP138A
+24V
V
IN
ADJ
1
µ
F
Improving Ripple Rejection
IP138A
V
IN
V
IN
ADJ
1
µ
F
V
O U T
249
Ω
1%
To V
PP
V
O U T
R1
121
Ω
5V
750
Ω
1%
R2
383
Ω
C1
10
µ
F
READ
39k
Ω
3.24k
Ω
1%
C1 improves ripple rejection.
X
C
should be small compared to R2.
WRITE
To OE
BYTE ERASE
18k
Ω
Temperature Compensated Lead–Acid Battery Charger
CHIP ERASE
100k
Ω
All gates 7406.
V
IN
1N4001
V
IN
IP138A
V
O U T
ADJ
READ
WRITE
BYTE
5V
CHIP ERASE 12V
OE
0V
V
PP
5V
21V
21V
2N3906
243
Ω
10k
Ω
50
Ω
THERMALLY
COUPLE
12V
20k
Ω
50k
Ω
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
sales@semelab.co.uk
Website:
Prelim. 4/96
SEME-LAB [ SEME LAB ]
