LM79XX ETC | Alldatasheet

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LM79XX LINEAR INTEGRATED CIRCUIT

3 TERMINAL 1A NEGATIVE

DESCRIPTION

The Contek 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.

FEATURES

*Output current up to 1A *-5V;-6V;-8V;-12V;-15V;-18V;-24V output voltage available *Thermal overload protection *Short circuit protection TO-220 1:GND 2:Input 3:Output BLOCK DIAGRAM Voltage reference Protection circuitry GND OUTPUT INPUTRSC Contek CONTEK Contek Microelectronics Co.,Ltd. http://www.contek-ic.com E-mail:sales@contek-ic.com

LM79XX LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS(Ta=25 C) PARAMETER SYMBOL VALUE UNIT Input voltage Vi -35 V Thermal resistance junction-air R /c113JA 65 C /W Thermal resistance junction-cases R /c113JC 5C / W Operating Temperature Topr 0 ~ +125 C Storage Temperature Tstg -65 ~ +150 C Contek7905 ELECTRICAL CHARACTERISTICS (Refer to test circuits, 0<Tj<125 C,Io=500mA,Vi=-10V,Ci=33uF,Co=1uF, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output voltage Vo 5.0mA<Io<1.0A,Po<15W Line regulation /c68Vo Tj=25 C,Vi=-7V to -25V 10 100 mV Tj=25 C,Vi=-8V to -12V mV Load regulation /c68Vo Tj=25 C,Io=5.0mA to 1.5A 10 100 mV Tj=25 C,Io=250mA to 750mA 35 0 m V Quiescent current I Q Tj=25 C 36 m A Quiescent current change /c68IQ Io=5mA to 1.0A 0.05 0.5 mA Vi=-7V to -25V 0.1 1.3 mA Output voltage drift /c68Vo//c68T Io=5mA -0.4 mV/ C Output noise voltage V N f=10hz to 100kHz,Ta=25 C 100 /c109V Ripple rejection RR f=120Hz, Vi=-8V to -18V 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 Contek7906 ELECTRICAL CHARACTERISTICS (Refer to test circuits, 0<Tj<125 C,Io=500mA,Vi=-11V,Ci=2.2uF,Co=1uF,unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output voltage Vo 5.0mA<Io<1.0A,Po<15W Line regulation /c68Vo Tj=25 C,Vi=-8V to -25V 10 120 mV Tj=25 C,Vi=-9V to -13V 56 0 m V Load regulation /c68Vo Tj=25 C,Io=5.0mA to 1.5A 10 120 mV Tj=25 C,Io=250mA to 750mA 36 0 m V Quiescent current I Q Tj=25 C 36 m A Quiescent current change /c68IQ Io=5mA to 1.0A 0.5 mA Vi=-8V to -25V 1.3 mA Output voltage drift /c68Vo//c68T Io=5mA -0.5 mV/ C Output noise voltage V N f=10hz to 100kHz,Ta=25 C 130 /c109V Ripple rejection RR f=120Hz, Vi=-9V to -19V 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 CONTEK Contek Microelectronics Co.,Ltd. http://www.contek-ic.com E-mail:sales@contek-ic.com

LM79XX LINEAR INTEGRATED CIRCUIT Contek7908 ELECTRICAL CHARACTERISTICS (Refer to test circuits, 0<Tj<125 C,Io=500mA,Vi=-14V,Ci=2.2uF,Co=1uF,unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output voltage Vo 5.0mA<Io<1.0A,Po<15W Line regulation /c68Vo Tj=25 C,Vi=-10.5V to -25V 10 100 mV Tj=25 C,Vi=-11.5V to -17V 58 0 m V Load regulation /c68Vo Tj=25 C,Io=5.0mA to 1.5A 12 160 mV Tj=25 C,Io=250mA to 750mA 48 0 m V Quiescent current I Q Tj=25 C 36 m A Quiescent current change /c68IQ Io=5mA to 1.0A 0.05 0.5 mA Vi=-11.5V to -25V 0.1 1.0 mA Output voltage drift /c68Vo//c68T Io=5mA -0.6 mV/ C Output noise voltage V N f=10hz to 100kHz,Ta=25 C 175 /c109V Ripple rejection RR f=120Hz, Vi=-11.5V to -21.5V 54 60 dB Dropout voltage Vo Io=1.0A,Tj=25 C 2V Short citcuit current Isc Vi=-35V,Ta=25 C 300 mA peak current Ipk Tj=25 C 2.2 A Contek7912 ELECTRICAL CHARACTERISTICS (Refer to test circuits, 0<Tj<125 C,Io=500mA,Vi=-18V,Ci=2.2uF,Co=1uF,unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output voltage Vo 5.0mA<Io<1.0A,Po<15W Line regulation /c68Vo Tj=25 C,Vi=-14.5V to -30V 12 240 mV Tj=25 C,Vi=-16V to -22V 6 120 mV Load regulation /c68Vo Tj=25 C,Io=5.0mA to 1.5A 12 240 mV Tj=25 C,Io=250mA to 750mA 4 120 mV Quiescent current I Q Tj=25 C 36 m A Quiescent current change /c68IQ Io=5mA to 1.0A 0.05 0.5 mA Vi=-14.5V to -30V 0.1 1.0 mA Output voltage drift /c68Vo//c68T Io=5mA -0.8 mV/ C Output noise voltage V N f=10hz to 100kHz,Ta=25 C 200 /c109V Ripple rejection RR f=120Hz, Vi=-15V to -25V 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 CONTEK Contek Microelectronics Co.,Ltd. http://www.contek-ic.com E-mail:sales@contek-ic.com

LM79XX LINEAR INTEGRATED CIRCUIT Contek7915 ELECTRICAL CHARACTERISTICS (Refer to test circuits, 0<Tj<125 C, Io=500mA,Vi=-23V,Ci=2.2uF,Co=1uF,unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output voltage Vo 5.0mA<Io<1.0A,Po<15W Vi=-17.5V to -30V -14.25 -15 -15.75 V Line regulation /c68Vo Tj=25 C,Vi=-17.5V to -30V 12 300 mV Tj=25 C,Vi=-20V to -26V 6 150 mV Load regulation /c68Vo Tj=25 C,Io=5.0mA to 1.5A 12 300 mV Tj=25 C,Io=250mA to 750mA 4 150 mV Quiescent current I Q Tj=25 C 36 m A Quiescent current change /c68IQ Io=5mA to 1.0A 0.05 0.5 mA Vi=-17.5V to -30.5V 0.1 1.0 mA Output voltage drift /c68Vo//c68T Io=5mA -0.9 mV/ C Output noise voltage V N f=10hz to 100kHz,Ta=25 C 250 /c109V Ripple rejection RR f=120Hz, Vi=-18.5V to -28.5V 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 Contek7918 ELECTRICAL CHARACTERISTICS (Refer to test circuits, 0<Tj<125 C,Io=500mA,Vi=-27V,Ci=2.2uF,Co=1uF,unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output voltage Vo 5.0mA<Io<1.0A,Po<15W Vi=-21V to -33V -17.1 -18 -18.9 V Line regulation /c68Vo Tj=25 C,Vi=-21V to -33V 15 360 mV Tj=25 C,Vi=-24V to -30V 8 180 mV Load regulation /c68Vo Tj=25 C,Io=5.0mA to 1.5A 15 360 mV Tj=25 C,Io=250mA to 750mA 5.0 180 mV Quiescent current I Q Tj=25 C 36 m A Quiescent current change /c68IQ Io=5mA to 1.0A 0.5 mA Vi=-21V to -32V 1.0 mA Output voltage drift /c68Vo//c68T Io=5mA -1 mV/ C Output noise voltage V N f=10hz to 100kHz,Ta=25 C 300 /c109V Ripple rejection RR f=120Hz, Vi=-22V to -32V 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 CONTEK Contek Microelectronics Co.,Ltd. http://www.contek-ic.com E-mail:sales@contek-ic.com

LM79XX LINEAR INTEGRATED CIRCUIT Contek7924 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 -24 -25 V Output voltage Vo 5.0mA<Io<1.0A,Po<15W Vi=-27V to -38V -22.8 -24 -25.2 V Line regulation /c68Vo Tj=25 C,Vi=-27V to -38V 15 480 mV Tj=25 C,Vi=-30V to -36V 8 240 mV Load regulation /c68Vo 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 I Q Tj=25 C 36 m A Quiescent current change /c68IQ Io=5mA to 1.0A 0.5 mA Vi=-27V to -38V 1.0 mA Output voltage drift /c68Vo//c68T Io=5mA -1 mV/ C Output noise voltage V N f=10hz to 100kHz,Ta=25 C 400 /c109V 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 -Vi -Vo 2.2 /c109F 1 /c109F Contek LM79XX Fig.1 Fixed output regulator Contek LM7915 Contek LM78151 2.2 /c109F 1 /c109F 0.1 /c109F0.33 /c109F +20V +15V -15V-20V 1N4001 1N4001 Fig.2 Split power supply(+-15V,1A) CONTEK Contek Microelectronics Co.,Ltd. http://www.contek-ic.com E-mail:sales@contek-ic.com

LM79XX LINEAR INTEGRATED CIRCUIT Contek LM79XX 2.2 /c109F 2.5 /c109F C2 1 /c109F -Vo-Vi Fig.3 Circuit for increasing output voltage CONTEK Contek Microelectronics Co.,Ltd. http://www.contek-ic.com E-mail:sales@contek-ic.com