L146.pdf 데이터시트 (총 11 페이지) - 파일 다운로드 L146 데이타시트 다운로드

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LINEAR INTEGRATED CIRCUIT
HIGH PRECISION HIGH VOLTAGE REGULATOR
• INPUT VOLTAGE UP TO 80V
• OUTPUT VOLTAGE ADJUSTABLE FROM 2 TO 77V
• POSITIVE OR NEGATIVE SUPPLY OPERATION
• SERIES. SHUNT, SWITCHING OR FLOATING OPERATION
• OUTPUT CURRENT UP TO 150 mA WITHOUT EXTERNAL PASS TRANSISTOR
• ADJUSTABLE CURRENT LIMITING
• THERMAL PROTECTION
The L 146 is a monolithic integrated programmable voltage regulator in 14-lead dual in-line plastic
package and 10-lead Metal Can (TO-l00 type). It is made with high voltage technology and provides
internal current limiting and thermal shut down protection; when current exceeds 150 mA an external
NPN or PNP pass element may be used. Provisions are made for adjustable current limiting and remote
shut down. The L 146 is intended to widen the application range of L 123 up to 80V.
ABSOLUTE MAXIMUM RATINGS
VI
Vi-Vo
10
Iref
Ptot
T stg
Input voltage
Voltage drop
Output current
Current from V ref
=Power dissipation (at Tamb 70°C) Plastic DIP
TO-l00
Operating junction temperature L 146
L146C
Storage temperature
80 V
78 V
150 mA
8 mA
1W
520 mW
-25 to + 85°C
o to +70 °C
-65 to +150°C
MECHANICAL DATA
Dimensions in mm
57 6/82

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CONNECTION DIAGRAMS
(top view)
CURRENT
LlM1T
INVERTING
INPUT
NON-
INVERTING 3
INPUT
Type
L146
L146 C
TO-100
L 146 T
L 146 CT
NC
CURRENT
LIMIT
CURRENT
SENSE
INVERT
INPUT
NON~
INVERT
INPUT
Vre!
-v,
NC
" FREQUENCY
COMP
" .v,
Vc
W V,
V,
NC
Plastic DIP
L 146 CB
BLOCK DIAGRAM
INVERT.
INPUT
FREQUENCY
COMPENS. Vc
SERIES PASS
TRANSISTORS
.....- - - - + < J ' Vo
NON-INVERT. CURRENT CURRENT
INPUT
LIMIT
SENSE
Vz
5-366411
THERMAL DATA
Rth j-amb Thermal resistance junction-ambient
58
TO-100 Plastic DIP
max 155°C/W 80°C/W

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SCHEMATIC DIAGRAM (pin number relative to the plastic package)
~--~-------.--------~ -------~------------~-------------~------~120·V5
Rl R3
Rll R14
01 Q2 ~~~Q~3--~------~--------+-------~~0~9-----------~ Q12
04
R2
05
iI'N~,
I
Ii
I
I
R6
Cl
R5
* ONLY IN PLASTIC DIP
02
R7
R8
L-----------'"O Vz *
CURRENT
x---c..---1------U LIM IT
LS_-36-65--------~30 ~~~~~NT
NON -INVERT -Vs
INPUT
INVERT.
INPUT
TEST CIRCUIT
12 ",0 Vo
L146
9 V.L
:+l2-CL-~-ci :=R:SCJ
3 CS ____
-0 REGULAT~D
41n~ ____ ~
OUTPUT
~OPF R35_3666/1
Vi = 12V
Vo= 5V 10= 1 mA
R1 //R 2 <; 10 Kn
59

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ELECTRICAL CHARACTERISTICS (Refer to the test circuit, Tarnb = 25°C unless otherwise
specified)
Parameter
Test conditions
L146 C
L146
Unit
Min. Typ. Max. Min. Typ. Max.
f,vo
Vo
Line regulation
V i =12to15V
V i =12t040V
Vi =40 to 80V
0.05 0.15
0.1 0.5
0.1 0.5
0.05 0.15
0.1 0.2
0.1 0.2
%
/,,vo
-v;;-
Load regulation
VI = 12V
Vo=5V
10 = 1 to 50 rnA
0.03 0.2
0.03 0.15 %
Vi =40V
Vo = 37V
10 = 1 to 10 rnA
0.1 0.5
0.1 0.3 %
Vi = 80V
Vo = 77V
10 = 1 to 10 mA
0.12 0.8
0.12 0.5 %
V ref
AV ref
SVR
Reference voltage
Ripple rejection
AVo
--;:;:=r
Ise
Output voltage drift
Short circuit current
limiting
I ref= 160 ~A
I ref= 160 ~A to 5 mA
f = 100 Hz to 10 KHz
Cref= 0
Cref= 5 ~F
Rse= 10n
Vo=O
7.75 8.15 8.55 7.9 8.15 8.4 V
4 14
4 14 mV
60 60 dB
88 88
150 150 I~
°C
50 60 70 50 60 70 mA
Vi Input voltage range
10 80 10 80 V
Vo Output voltage range
VI-Vo Voltage drop·
Id· Quiescent drain current
10=0
Vo=5V
(including I ref= 160 ~AI
Vi = 12V
Vi = 40V
VI = 80V
2 77 2 77 V
I3 78 3 78 V
4 5.5
5.6 7
6 7.5
4 5.5
5.6 7 mA
6 7.5
Aid
Quiescent drain current 10= 1 mA
Vi = 12 to 40V
2.2
1.6 mA
change
Vo=5V
Vi = 12 to 80V
2.6
2 mA
Long term .stability
0.1
eN
Output noise voltage
BW = 100 Hz to 10 KHz
Cref= 0
Cref= 5 ~F
-
300
30
Vz
Output zener voltage
Iz= 1 mA
(for plastic package only)
6.9 7.7
0.1
%
TOOo
hrs
300 ~V
30
V
60

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Fig. 1 - Maximum output
current vs. voltage drop
Fig. 2 - Load regulation vs.
output current (with cur-
rent limiting)
G-1,34411
I0
Vo=5V
..... ~
VI ='2V
Rse'O.n - t--
~~
,'\~
1-i - t--
\\ ' \ jI\, -~1'ftl-5S'C t--
\- -\;T~mb'ls.c
-0.3
Tamb" 125'C
-0.4
20
I\
60 BO lo(mAl
Fig. 3 - Load regulation vs.
output current (with current
limiting)
G-l87~
~~mIRsc: 1O
1-
....i""o
-..;::r::::: ~I::::-
~, ;-...
-OJ
m- f - -
.i-,~ttt=-f--,
'<ll)I')b:o'
70'C
I'
-0.2
o
10 20
Fig. 4 - Load regulation vs.
output current (without
current limiting)
G-367~
-F::::::, lamb" O'C
r:::::::::--""- 25'~
~, ~,0.
-0.2
- 0 .3
20 '0 60
Fig. 5 - Current limiting
characteristics
vo
1+.(v)
I
Tamb=70"C
25'0
0'0
I- Vi,,12V
RSC=1O
'"20 60 80 100 lo{.mA}
Fig. 6 .. Current limiting
characteristics vs. junction
temperature
G-3817
"'-v
(V')
I
1
( rnA)
~G-
7
"Cy;;; ~"'-
+
,
60
t--
6
Ni~SC"S~ ~
,
I
0.5 C- ~~OI il
I""""t---
i'-,
.......
........
'0
1 I --j-..
04
I
i
3
·20 20 6C 100 TJ{'C}
Fig. 7
Line
response
"0
(mV)
INPUT VOLTAGE
I
II
transient
G-3678!l
'V,
(V)
' / r-- t - ~PUT lTAGE
I
'-
Vi=12V
Vo"5V
'2r- io"lmA
R~r."O
., i
10
20 30
t(,us)
Fig. 8 - Load transient
response
"0
(mV ) , - LOAD CURRENT
II
[ 1\
I
II 1 \
:--,' - -
OUTPUT VOLTAGE
(
-s
Vj,,12V
f--
"'OOISY
lo,,40m
RSC= 0
.,
IV
25 35t{psetl
Fig. 9 - Output impedance
vs. frequency
, I'
10-~
10-2Y-'-l.-'l.'l'.L-,f-'-l.-'l.'l'.L..-,f-'-l."".'f.I.....,f-'-l-'fj'
'0' 103 10' 105 t(Hz)
61