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UNISONIC TECHNOLOGIES CO., LTD 79DXXA LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 9 Copyright © 2013 Unisonic Technologies Co., Ltd QW-R101.039.D
3 TERMINAL 1A NEGATIVE
DESCRIPTION The UTC 79DXXA series of three-terminal negative regulators is available several fixed output voltage, making them useful in a wide range of application. Each type employs internal current limiting, thermal shut-down, making it essentially indestructible. FEATURES * Output current up to 1A * -5V, -6V, -8V, -9V,-12V, -15V, -18V, -24V output voltage available * Thermal overload protection NORDERING INFORMATIO Ordering Number Package Pin Assignment Packing Lead Free Halogen Free 1 2 3 79DXXAL-TM3-T 79DXXAG-TM3-T TO-251 G I O Tube 79DXXAL-TN3-T 79DXXAG-TN3-T TO-252 G I O Tube 79DXXAL-TN3-R 79DXXAG-TN3-R TO-252 G I O Tape Reel Note: Pin Assignment : G: GND I: Input O: Output
79DXXA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 2 of 9 www.unisonic.com.tw Q W - R 1 0 1 - 0 3 9 . D MARKING INFORMATION PACKAGE VOLTAGE CODE MARKING TO-251 TO-252 05: -5V 06:-6V 08:-8V 09:-9V 12:-12V 15:-15V 18:-18V 24:-24V BLOCK DIAGRAM Voltage Reference Protection Circuitry GND OUTPUT INPUTRSC
79DXXA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 3 of 9 www.unisonic.com.tw Q W - R 1 0 1 - 0 3 9 . D ABSOLUTE MAXIMUM RATINGS (TA=25C) PARAMETER SYMBOL RATING UNIT Input Voltage V IN -35 V Output Current I OUT 1 A Power Dissipation P D Internally Limited W Operating Temperature T OPR 0 ~ +125 C Storage Temperature T STG -65 ~ +150 C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. THERMAL DATA PARAMETER SYMBOL RATING UNIT Junction to Ambient θJA 112 C/W Junction to Case θJC 12.5 C/W ELECTRICAL CHARACTERISTICS (IOUT=0.5A, TJ=0C~125C, CI=2.2uF, CO=1uF, unless otherwise specified) For UTC 79D05A (VIN=-10V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT VIN=-7V~-20V IOUT=5mA~1A, PD≦15W -4.75 -5.25 V Dropout Voltage V D I OUT=1A T J=25C 2 V Line Regulation VOUT VIN=-7V~-25V T J=25C 10 100 mV VIN=-8V~-12V T J=25C 5 60 mV Load Regulation VOUT IOUT=5mA~1A T J=25C 10 100 mV IOUT=250mA~750mA T J=25C 3 50 mV Quiescent Current I Q T J=25C 3 6 mA Quiescent Current Change IQ IOUT=5mA~1A 0.05 0.5 mA VIN=-7V~-25V 0.1 1.3 mA Output Noise Voltage eN f=10Hz~100kHz T A=25C 100 V Output Voltage Drift VOUT/TI OUT=5mA -0.4 mV/ C Ripple Rejection RR V IN=-8V~-18V, f=120Hz 54 60 dB Peak Current I PEAK T J=25C 2.2 A For UTC 79D06A (VIN=-11V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT VIN=-8V~-21V, IOUT=5mA~1A, PD≦15W -5.70 -6.30 V Dropout Voltage V D I OUT=1.0A T J=25C 2 V Line Regulation VOUT VIN=-8V~-25V T J=25C 10 120 mV VIN=-9V~-13V T J=25C 5 60 mV Load Regulation VOUT IOUT=5mA~1A T J=25C 10 120 mV IOUT=250mA~750mA T J=25C 3 60 mV Quiescent Current I Q T J=25C 3 6 mA Quiescent Current Change IQ IOUT=5mA~1A 0.05 0.5 mA VIN=-8V~-25V 0.1 1.3 mA Output Noise Voltage eN f=10Hz~100kHz T A=25C 130 V
79DXXA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 4 of 9 www.unisonic.com.tw Q W - R 1 0 1 - 0 3 9 . D ELECTRICAL CHARACTERISTICS(Cont.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage Drift VOUT/TI OUT=5mA -0.5 mV/ C Ripple Rejection RR V IN=-9V~-19V, f=120Hz 54 60 dB Peak Current I PEAK T J=25C 2.2 A For UTC 79D08A (VIN=-14V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT VIN=-10.5V~-23V, IOUT=5mA~1A, PD≦15W -7.60 -8.40 V Dropout Voltage V D I OUT=1A T J=25C 2 V Line Regulation VOUT VIN=-10.5V~-25V T J=25C 10 160 mV VIN=-11.5V~-17V T J=25C 5 80 mV Load Regulation VOUT IOUT=5mA~1A T J=25C 12 160 mV IOUT=250mA~750mA T J=25C 4 80 mV Quiescent Current I Q T J=25C 3 6 mA Quiescent Current Change IQ IOUT=5mA~1A 0.05 0.5 mA VIN=-11.5V~-25V 0.1 1.0 mA Output Noise Voltage eN f=10Hz~100kHz T A=25C 175 V Output Voltage Drift VOUT/TI OUT=5mA -0.6 mV/ C Ripple Rejection RR V IN=-11.5V~-21.5V, f=120Hz 54 60 dB Peak Current I PEAK T J=25C 2.2 A For UTC 79D09A (VIN=-15V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT VIN=-11.5V~-23V, IOUT=5mA~1A, PD≦15W -8.55 -9.45 V Dropout Voltage V D I OUT=1A T J=25C 2.0 V Line Regulation VOUT VIN=-11.5V~-26V T J=25C 10 180 mV VIN=-12V~-18V T J=25C 5 90 mV Load Regulation VOUT IOUT=5mA~1A T J=25C 12 180 mV IOUT=250mA~750mA T J=25C 4 90 mV Quiescent Current I Q T J=25C 3 6 mA Quiescent Current Change IQ IOUT=5mA~1A 0.05 0.5 mA VIN=-11.5V~-26V 0.1 1.0 mA Output Noise Voltage eN f=10Hz~100kHz T a=25C 175 V Output Voltage Drift VOUT/TI OUT=5mA -0.6 mV/ C Ripple Rejection RR V IN=-12.5V~-22.5V, f=120Hz 54 60 dB Peak Current I PEAK T J=25C 2.2 A
79DXXA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 5 of 9 www.unisonic.com.tw Q W - R 1 0 1 - 0 3 9 . D ELECTRICAL CHARACTERISTICS(Cont.) For UTC 79D12A (VIN=-18V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT VIN=-14.5V~-27V, IOUT=5mA~1A, PD≦15W -11.40 -12.60 V Dropout Voltage V D I OUT=1A T J=25C 2 V Line Regulation VOUT VIN =-14.5V~-30V T J=25C 12 240 mV VIN =-16V~-22V T J=25C 6 120 mV Load Regulation VOUT IOUT=5mA~1A T J=25C 12 240 mV IOUT=250mA~750mA T J=25C 4 120 mV Quiescent Current I Q T J=25C 3 6 mA Quiescent Current Change IQ IOUT=5mA~1A 0.05 0.5 mA VIN=-14.5V~-30V 0.1 1.0 mA Output Noise Voltage eN f=10Hz~100kHz T a=25C 200 V Output Voltage Drift VOUT/T I OUT=5mA -0.8 mV/ C Ripple Rejection RR V IN=-15V~-25V, f=120Hz 54 60 dB Peak Current I PEAK T J=25C 2.2 A For UTC 79D15A (VIN=-23V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT VIN=-17.5V~-30V IOUT=5mA~1A, PD≦15W -14.25 -15.75 V Dropout Voltage V D I OUT=1A T J=25C 2 V Line Regulation VOUT VIN=-17.5V~-30V T J=25C 12 300 mV VIN=-20V~-26V T J=25C 6 150 mV Load Regulation VOUT IOUT=5mA~1A T J=25C 12 300 mV IOUT=250mA~750mA T J=25C 4 150 mV Quiescent Current I Q T J=25C 3 6 mA Quiescent Current Change IQ IOUT=5mA~1A 0.05 0.5 mA VIN=-17.5V~-30.5V 0.1 1.0 mA Output Noise Voltage eN f=10Hz~100kHz T a=25C 250 V Output Voltage Drift VOUT/T I OUT=5mA -0.9 mV/ C Ripple Rejection RR V IN=-18.5V~-28.5V, f=120Hz 54 60 dB Peak Current I PEAK T J=25C 2.2 A
79DXXA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 6 of 9 www.unisonic.com.tw Q W - R 1 0 1 - 0 3 9 . D ELECTRICAL CHARACTERISTICS(Cont.) For UTC 79D18A (VIN=-27V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT VIN=-21V~-33V IOUT=5mA~1A, PD≦15W -17.10 -18.90 V Dropout Voltage V D I OUT=1A T J=25C 2 V Line Regulation VOUT VIN =-21V~-33V T J=25C 15 360 mV VIN =-24V~-30V T J=25C 8 180 mV Load Regulation VOUT IOUT=5mA~1A T J=25C 15 360 mV IOUT=250mA~750mA T J=25C 5.0 180 mV Quiescent Current I Q T J=25C 3 6 mA Quiescent Current Change IQ IOUT=5mA~1A 0.05 0.5 mA VIN=-21V~-32V 0.1 1.0 mA Output Noise Voltage eN f=10Hz~100kHz T a=25C 300 V Output Voltage Drift VOUT/T I OUT=5mA -1 mV/ C Ripple Rejection RR V IN=-22V~-32V, f=120Hz 54 60 dB Peak Current I PEAK T J=25C 2.2 A For UTC 79D24A (VIN=-33V) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Output Voltage V OUT T J=25C -23.04 -24 -24.96 V VIN=-27V~-38V IOUT=5mA~1A, PD≦15W -22.80 -25.20 V Dropout Voltage V D I OUT=1.0A T J=25C 2 V Line Regulation VOUT VIN=-27V~-38V T J=25C 15 480 mV VIN=-30V~-36V T J=25C 8 240 mV Load Regulation VOUT IOUT=5mA~1A T J=25C 15 480 mV IOUT=250mA~750mA T J=25C 5.0 240 mV Quiescent Current I Q T J=25C 3 6 mA Quiescent Current Change IQ IOUT=5mA~1A 0.05 0.5 mA VIN =-27V~-38V 0.1 1.0 mA Output Noise Voltage eN f=10Hz~100kHz T a=25C 400 V Output Voltage Drift VOUT/TI OUT=5mA -1 mV/ C Ripple Rejection RR V IN =-28V~-38V, f=120Hz 54 60 dB Peak Current I PEAK T J=25C 2.2 A
79DXXA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 7 of 9 www.unisonic.com.tw Q W - R 1 0 1 - 0 3 9 . D APPLICATION CIRCUITS UTC 79DXXA 3 CO 1 μF CI 2.2 μF -VIN -VOUT Fig.1 Fixed output regulator UTC 79DXXA CI 2.2 F
2.5 F CO
-VOUT-VIN Fig.2 Circuit for increasing output voltage
79DXXA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 8 of 9 www.unisonic.com.tw Q W - R 1 0 1 - 0 3 9 . D TYPICAL CHARACTERISTICS Time (2ms/div) 01 0 2 0 Time (4ms/div) Dynamic Loading Test CH1: 1V/div CH2: 10mVdiv CH3: 1A/div Dynamic Loading Test 20 40 CH1 CH2 CH1 CH2 VIN=VO+5V, Io=0mA~1A, CIN=10uF, COUT=10uF, Ch1=VIN, Ch2=VOUT, Ch3=IO CH3 CH3 VIN=VO+5V, Io=0mA~1A, CIN=10uF, COUT=10uF, Ch1=VIN, Ch2=VOUT, Ch3=IO CH1: 1V/div CH2: 10mVdiv CH3: 1A/div Time (10ms/div) 0 50 100 Power Supply Rejection CH1: 500mV/div CH2: 10mVdiv CH1 CH2 VIN=VO+5V, Vip(rms)= 0.5V, IO=10mA, CIN=10uF, CO=10uF, f=120Hz, Ch1=VIN, Ch2=VOUT Time (10ms/div) 05 0 1 0 0 Power Supply Rejection CH1: 500mV/div CH2: 10mVdiv CH1 CH2 VIN=VO+5V, Vip(rms)= 0.5V, IO=10mA, CIN=10uF, CO=10uF, f=120Hz, Ch1=VIN, Ch2=VOUT VOUT vs. Temperature VOUT (V) Temperature ( ) -12.15 5030 -12.1 -12.05 -12 -11.95 -11.9 -11.85 -11.8 70 90 110 130 150 VIN=-14.5V, IOUT=-5mA VOUT vs. Temperature VOUT (V) Temperature ( ) -15.3 4020 -15.2 -15.1 -15 -14.9 -14.8 -14.7 60 80 100 120 160 140 VIN=-20V, IOUT=10mA
79DXXA LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 9 of 9 www.unisonic.com.tw Q W - R 1 0 1 - 0 3 9 . D TYPICAL CHARACTERISTICS VOUT (-10V/0mA) vs. Temperature Temperature (℃) 80100 25 -5.06 304060120140160 -5.05 -5.04 -5.03 -5.02 -5.01 -4.99 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.