79TXXA

79TXXA UTC | Alldatasheet

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UTC 79TXXA LINEAR INTEGRATED CI RCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R101-013,C,

3 TERMINAL 1A NEGATIVE

DESCRIPTION

The UTC 79TXXA series of three-terminal negative regulators are available in TO-263 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, -9V, -12V, -15V, -18V, -24V output voltage available *Thermal overload protection *Short circuit protection TO-263 TO-263-3 1:GND 2:Input 3:Output BLOCK DIAGRAM Voltage reference Protection circuitry GND OUTPUT INPUTRSC

UTC 79TXXA LINEAR INTEGRATED CI RCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R101-013,C, ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER SYMBOL RATING UNIT Input voltage VI -35 V Output Current I o 1 A Power Dissipation P D Internally Limited W Thermal Resistance Junction-Air R θ JA 65 °C/W Thermal Resistance Junction-Cases R θ JC 5 °C/W Operating Junction Temperature Range Topr 0 ~ +125 °C Storage Temperature Range Tstg -65 ~ +150 °C UTC79T05A 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 Vi=-7V to -20V -4.75 -5.25 V Line regulation ∆Vo Tj=25 °C,Vi=-7V to -25V 10 100 mV Tj=25°C,Vi=-8V to -12V mV Load regulation ∆Vo Tj=25 °C,Io=5.0mA to 1.0A 10 100 mV Tj=25°C,Io=250mA to 750mA 3 50 mV Quiescent current I Q Tj=25°C 3 6 mA Quiescent current change ∆IQ Io=5mA to 1.0A 0.05 0.5 mA Vi=-7V to -25V 0.1 1.3 mA Output voltage drift ∆Vo/∆T Io=5mA -0.4 mV/°C Output noise voltage V N f=10hz to 100kHz,Ta=25°C 100 µV Ripple rejection RR f=120Hz, Vi=-8V to -18V 54 60 dB Dropout voltage Vo Io=1.0A,Tj=25°C 2 V Short circuit current Isc Vi=-35V,Ta=25°C 300 mA peak current Ipk Tj=25°C 2.2 A UTC79T06A 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 Vi=-8V to -21V -5.70 -6.30 V Line regulation ∆Vo Tj=25 °C,Vi=-8V to -25V 10 120 mV Tj=25°C,Vi=-9V to -13V 5 60 mV Load regulation ∆Vo Tj=25 °C,Io=5.0mA to 1.0A 10 120 mV Tj=25°C,Io=250mA to 750mA 3 60 mV Quiescent current I Q Tj=25°C 3 6 mA Quiescent current change ∆IQ Io=5mA to 1.0A 0.5 mA Vi=-8V to -25V 1.3 mA Output voltage drift ∆Vo/∆T Io=5mA -0.5 mV/°C Output noise voltage V N f=10hz to 100kHz,Ta=25°C 130 µV Ripple rejection RR f=120Hz, Vi=-9V to -19V 54 60 dB Dropout voltage Vo Io=1.0A,Tj=25°C 2 V Short circuit current Isc Vi=-35V,Ta=25°C 300 mA peak current Ipk Tj=25°C 2.2 A

UTC 79TXXA LINEAR INTEGRATED CI RCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R101-013,C, UTC79T08A 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 Vi=-10.5V to -23V -7.60 -8.40 V Line regulation ∆Vo Tj=25 °C,Vi=-10.5V to -25V 10 100 mV Tj=25°C,Vi=-11.5V to -17V 5 80 mV Load regulation ∆Vo Tj=25 °C,Io=5.0mA to 1.0A 12 160 mV Tj=25°C,Io=250mA to 750mA 4 80 mV Quiescent current I Q Tj=25°C 3 6 mA Quiescent current change ∆IQ Io=5mA to 1.0A 0.05 0.5 mA Vi=-11.5V to -25V 0.1 1.0 mA Output voltage drift ∆Vo/∆T Io=5mA -0.6 mV/°C Output noise voltage V N f=10hz to 100kHz,Ta=25°C 175 µV Ripple rejection RR f=120Hz, Vi=-11.5V to -21.5V 54 60 dB Dropout voltage Vo Io=1.0A,Tj=25°C 2 V Short citcuit current Isc Vi=-35V,Ta=25°C 300 mA peak current Ipk Tj=25°C 2.2 A UTC 79T09A ELECTRICAL CHARACTERISTICS (Refer to test circuits, 0<Tj<125°C,Io=500mA,Vi=-15V,Ci=2.2uF,Co=1uF,unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Tj=25°C -8.64 -9.0 -9.36 V Output Voltage Vo 5.0mA<Io<1.0A,PD≦15W VI =-11.5V to -23V -8.55 -9.45 V Tj=25°C , VI =-11.5V to -26 V 10 180 mV Line regulation ∆Vo Tj=25°C , VI =-12V to -18V 5 90 mV Load Regulation ∆Vo Tj=25 °C,IO=5mA - 1.0A 12 180 mV Tj=25 °C,IO=0.25A - 0.75A 4 90 mV Quiescent Current Iq Tj=25 °C 3 6 mA Temperature coefficient of Vo ∆Vo/∆T Io=5mA -0.6 mV/ ° C Output Noise Voltage V N f=10Hz to 100kHz,Ta=25 °C 175 µV Ripple Rejection RR f=120Hz,Tj=25 °C, VI =-12.5V to -22.5V 54 60 dB Dropout Voltage Vd Io=1.0A,Tj=25 °C 2.0 V Short-Circuit Current I SC Vi=-35V,Ta=25 °C 300 mA Peak Output Current I PK Tj=25 °C 2.2 A UTC79T12A 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 Vi=-14.5V to -27V -11.40 -12.60 V Line regulation ∆Vo Tj=25 °C,Vi=-14.5V to -30V 12 240 mV

UTC 79TXXA LINEAR INTEGRATED CI RCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R101-013,C, PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Tj=25°C,Vi=-16V to -22V 6 120 mV Load regulation ∆Vo Tj=25 °C,Io=5.0mA to 1.0A 12 240 mV Tj=25°C,Io=250mA to 750mA 4 120 mV Quiescent current I Q Tj=25°C 3 6 mA Quiescent current change ∆IQ Io=5mA to 1.0A 0.05 0.5 mA Vi=-14.5V to -30V 0.1 1.0 mA Output voltage drift ∆Vo/∆T Io=5mA -0.8 mV/°C Output noise voltage V N f=10hz to 100kHz,Ta=25°C 200 µV Ripple rejection RR f=120Hz, Vi=-15V to -25V 54 60 dB Dropout voltage Vo Io=1.0A,Tj=25°C 2 V Short circuit current Isc Vi=-35V,Ta=25°C 300 mA peak current Ipk Tj=25°C 2.2 A UTC79T15A 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 -15.75 V Line regulation ∆Vo Tj=25 °C,Vi=-17.5V to -30V 12 300 mV Tj=25°C,Vi=-20V to -26V 6 150 mV Load regulation ∆Vo Tj=25 °C,Io=5.0mA to 1.0A 12 300 mV Tj=25°C,Io=250mA to 750mA 4 150 mV Quiescent current I Q Tj=25°C 3 6 mA Quiescent current change ∆IQ Io=5mA to 1.0A 0.05 0.5 mA Vi=-17.5V to -30.5V 0.1 1.0 mA Output voltage drift ∆Vo/∆T Io=5mA -0.9 mV/°C Output noise voltage V N f=10hz to 100kHz,Ta=25°C 250 µV Ripple rejection RR f=120Hz, Vi=-18.5V to -28.5V 54 60 dB Dropout voltage Vo Io=1.0A,Tj=25°C 2 V Short circuit current Isc Vi=-35V,Ta=25°C 300 mA peak current Ipk Tj=25°C 2.2 A UTC79T18A 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 -17.10 -18.90 V Line regulation ∆Vo Tj=25 °C,Vi=-21V to -33V 15 360 mV Tj=25°C,Vi=-24V to -30V 8 180 mV Load regulation ∆Vo Tj=25 °C,Io=5.0mA to 1.0A 15 360 mV Tj=25°C,Io=250mA to 750mA 5.0 180 mV Quiescent current I Q Tj=25°C 3 6 mA Quiescent current change ∆IQ Io=5mA to 1.0A 0.5 mA Vi=-21V to -32V 1.0 mA Output voltage drift ∆Vo/∆T Io=5mA -1 mV/°C Output noise voltage V N f=10hz to 100kHz,Ta=25°C 300 µV Ripple rejection RR f=120Hz, Vi=-22V to -32V 54 60 dB Dropout voltage Vo Io=1.0A,Tj=25°C 2 V Short circuit current Isc Vi=-35V,Ta=25°C 300 mA peak current Ipk Tj=25°C 2.2 A

UTC 79TXXA LINEAR INTEGRATED CI RCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R101-013,C, UTC79T24A 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 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 1.0A 15 480 mV Tj=25°C,Io=250mA to 750mA 5.0 240 mV Quiescent current I Q 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 V N 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 2 V 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 µF 1 µF UTC 79TXXA Fig.1 Fixed output regulator UTC 79T15A UTC 78T15A1 2.2 µF 1 µF 0.1 µF0.33 µF +20V +15V -15V-20V 1N4001 1N4001 Fig.2 Split power supply(+-15V,1A)

UTC 79TXXA LINEAR INTEGRATED CI RCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 6 QW-R101-013,C, UTC 79TXXA 2.2 µF 2.5 µF C2 1 µF -Vo-Vi Fig.3 Circuit for increasing output voltage UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.