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PDF UTCLM79XX Data sheet ( Hoja de datos )
| Número de pieza | UTCLM79XX | |
| Descripción | 3 TERMINAL 1A NEGATIVE VOLTAGE REGULATOR | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UTCLM79XX LINEAR INTEGRATED CIRCUIT
3 TERMINAL 1A NEGATIVE
VOLTAGE REGULATOR
DESCRIPTION
The UTC LM79XX series of three-terminal negative
regulators are available in TO-220 package and with several
fixed output voltage, making them useful in a wide range of
application. Each type employs internal current limiting,
thermal shut-down and safe area protection, making it
essentially indestructible.
1
FEATURES
*Output current up to 1A
*-5V;-6V;-8V;-12V;-15V;-18V;-24V output voltage
*Thermal overload protection
*Short circuit protection
available
BLOCK DIAGRAM
TO-220
1:GND 2:Input 3:Output
GND
R1
Voltage
reference
R2 OUTPUT
Protection
circuitry
RSC INPUT
UTC
UNISONIC TECHNOLOGIES CO., LTD. 1
QW-R101-007,B
1 page  
UTCLM79XX LINEAR INTEGRATED CIRCUIT
UTC7924 ELECTRICAL CHARACTERISTICS
(Refer to test circuits, 0<Tj<125°C,Io=500mA,Vi=-33V,Ci=2.2uF,Co=1uF,unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Tj=25°C
-23.04 -24 -24.96 V
Output voltage
Vo 5.0mA<Io<1.0A,Po<15W
Vi=-27V to -38V
-22.80
-25.20 V
Line regulation
∆Vo Tj=25°C,Vi=-27V to -38V
15 480 mV
Tj=25°C,Vi=-30V to -36V
8 240 mV
Load regulation
∆Vo Tj=25°C,Io=5.0mA to 1.5A
15 480 mV
Tj=25°C,Io=250mA to 750mA
5.0 240 mV
Quiescent current
IQ Tj=25°C
3 6 mA
Quiescent current change
∆IQ Io=5mA to 1.0A
0.5 mA
Vi=-27V to -38V
1.0 mA
Output voltage drift
∆Vo/∆T Io=5mA
-1 mV/°C
Output noise voltage
VN f=10hz to 100kHz,Ta=25°C
400 µV
Ripple rejection
RR f=120Hz, Vi=-28V to -38V
54 60
dB
Dropout voltage
Vo Io=1.0A,Tj=25°C
2V
Short circuit current
Isc Vi=-35V,Ta=25°C
300 mA
peak current
Ipk Tj=25°C
2.2 A
APPLICATION CIRCUITS
C1
2.2 µF
C0
1 µF
1
-Vi 2 UTC LM79XX 3 -Vo
+20V
Fig.1 Fixed output regulator
1 UTC LM7815 3
0.33 µF 2 0.1 µF
1N4001
+15V
-20V
2.2 µF
1 1 µF
2 UTC LM7915 3
1N4001
-15V
Fig.2 Split power supply(+-15V,1A)
UTC
UNISONIC TECHNOLOGIES CO., LTD. 5
QW-R101-007,B
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet UTCLM79XX.PDF ] | |
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