UNISONIC TECHNOLOGIES CO., LM79XX LINEAR INTEGRATED CIRCUIT 3 TERMINAL 1A NEGATIVE VOLTAGE REGULATOR DESCRIPTION The UTC LM79XX 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 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 ORDERING INFORMATION Ordering Number Normal Lead Free LM79xx-TA3-T LM79xxL-TA3-T LM79xx-TF3-T LM79xxL-TF3-T Note: O: Output G: GND I: Input Halogen Free LM79xxG-TA3-T LM79xxG-TF3-T Pin Assignment 1 2 3 G I O G I O Package TO-220 TO-220F Packing Tube Tube MARKING INFORMATION PACKAGE TO-220 TO-220F VOLTAGE CODE 05:-5.0V 06:-6.0V 08:-8.0V 09:-9.0V 12:-12V 15:-15V 18:-18V 24:-24V www.unisonic.com.tw Copyright © 2008 Unisonic Technologies Co., MARKING Voltage Code L: Lead Free G: Halogen Free UTC LM79 Date Code Lot Code 1 2 3 7 of 7 QW-R101-007.F LM79XX LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM GND R1 R2 OUTPUT Voltage Reference Protection Circuitry RSC UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw INPUT 7 of 7 QW-R101-007.F LM79XX LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER SYMBOL RATING UNIT Input Voltage VIN -35 V Output Current IOUT 1 A Power Dissipation PD Internally Limited W Operating Temperature TOPR -40 ~ +85 °C Storage Temperature TSTG -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 Junction to Ambient Junction to Case SYMBOL θJA θJC RATING 65 5 UNIT °C /W °C /W ELECTRICAL CHARACTERISTICS (IOUT=0.5A, TJ=0°C~125°C, CI=2.2uF, CO=1uF, unless otherwise specified) For UTC LM7905 (VIN=-10V) PARAMETER MIN -4.80 Output Noise Voltage Output Voltage Drift Ripple Rejection Peak Current Short Circuit Current TEST CONDITIONS TJ=25°C VOUT VIN=-7V~-20V IOUT=5mA~1A, PD≦15W VD IOUT=1A TJ=25°C VIN=-7V~-25V TJ=25°C Δ VOUT VIN=-8V~-12V TJ=25°C IOUT=5mA~1A TJ=25°C Δ VOUT IOUT=250mA~750mA TJ=25°C IQ TJ=25°C IOUT=5mA~1A ΔIQ VIN=-7V~-25V eN f=10Hz~100kHz Ta=25°C Δ VOUT/ΔT IOUT=5mA RR VIN=-8V~-18V, f=120Hz IPEAK TJ=25°C ISC VIN=-35V Ta=25°C For UTC LM7906 (VIN=-11V) PARAMETER SYMBOL MIN -5.76 Output Voltage Dropout Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change SYMBOL Output Voltage VOUT Dropout Voltage VD Line Regulation ΔVOUT Load Regulation ΔVOUT Quiescent Current IQ Quiescent Current Change ΔIQ Output Noise Voltage eN TEST CONDITIONS TJ=25°C VIN=-8V~-21V, IOUT=5mA~1A, PD≦15W IOUT=1.0A TJ=25°C VIN=-8V~-25V TJ=25°C VIN=-9V~-13V TJ=25°C IOUT=5mA~1A TJ=25°C IOUT=250mA~750mA TJ=25°C TJ=25°C IOUT=5mA~1A VIN=-8V~-25V f=10Hz~100kHz Ta=25°C UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TYP -5.0 -4.75 2 10 54 MAX -5.20 UNIT V -5.25 V 100 V mV mV mV mV mA mA mA μV mV/°C dB A mA 10 3 3 0.05 0.1 100 -0.4 60 2.2 300 100 50 6 0.5 1.3 TYP -6.00 MAX -6.24 UNIT V -6.30 V 120 60 120 60 6 0.5 1.3 V mV mV mV mV mA mA mA μV -5.70 2 10 5 10 3 3 0.05 0.1 130 7 of 7 QW-R101-007.F LM79XX LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS(Cont.) PARAMETER Output Voltage Drift Ripple Rejection Peak Current Short Circuit Current SYMBOL TEST CONDITIONS ΔVOUT/ΔT IOUT=5mA RR VIN=-9V~-19V, f=120Hz IPEAK TJ=25°C ISC VIN=-35V Ta=25°C MIN MAX 54 TYP -0.5 60 2.2 300 UNIT mV/°C dB A mA For UTC LM7908 (VIN=-14V) PARAMETER SYMBOL MIN -7.68 TYP -8.0 MAX -8.32 UNIT V -8.40 V Output Noise Voltage Output Voltage Drift Ripple Rejection Peak Current Short Circuit Current TEST CONDITIONS TJ=25°C VOUT VIN=-10.5V~-23V, IOUT=5mA~1A, PD≦15W VD IOUT=1A TJ=25°C VIN=-10.5V~-25V TJ=25°C ΔVOUT VIN=-11.5V~-17V TJ=25°C IOUT=5mA~1A TJ=25°C ΔVOUT IOUT=250mA~750mA TJ=25°C IQ TJ=25°C IOUT=5mA~1A ΔIQ VIN=-11.5V~-25V eN f=10Hz~100kHz Ta=25°C ΔVOUT/ΔT IOUT=5mA RR VIN=-11.5V~-21.5V, f=120Hz IPEAK TJ=25°C ISC VIN=-35V Ta=25°C For UTC LM7909 (VIN=-15V) PARAMETER SYMBOL MIN -8.64 Output Voltage Dropout Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Voltage Dropout Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Output Voltage Drift Ripple Rejection Peak Current Short Circuit Current TEST CONDITIONS TJ=25°C VOUT VIN=-11.5V~-23V, IOUT=5mA~1A, PD≦15W VD IOUT=1A TJ=25°C VIN=-11.5V~-26V TJ=25°C ΔVOUT VIN=-12V~-18V TJ=25°C IOUT=5mA~1A TJ=25°C ΔVOUT IOUT=250mA~750mA TJ=25°C IQ TJ=25°C IOUT=5mA~1A ΔIQ VIN=-11.5V~-26V eN f=10Hz~100kHz Ta=25°C ΔVOUT/ΔT IOUT=5mA VIN=-12.5V~-22.5V, f=120Hz RR IPEAK TJ=25°C ISC VIN=-35V Ta=25°C UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw -7.60 54 2 10 5 12 4 3 0.05 0.1 175 -0.6 60 2.2 300 TYP -9.0 -8.55 54 2.0 10 5 12 4 3 0.05 0.1 175 -0.6 60 2.2 300 160 80 160 80 6 0.5 1.0 V mV mV mV mV mA mA mA μV mV/°C dB A mA MAX -9.36 UNIT V -9.45 V 180 90 180 90 6 0.5 1.0 V mV mV mV mV mA mA mA μV mV/°C dB A mA 7 of 7 QW-R101-007.F LM79XX LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS(Cont.) For UTC LM7912 (VIN=-18V) PARAMETER SYMBOL Output Voltage VOUT Dropout Voltage VD Line Regulation ΔVOUT Load Regulation ΔVOUT Quiescent Current Quiescent Current Change IQ ΔIQ Output Noise Voltage Output Voltage Drift Ripple Rejection Peak Current Short Circuit Current eN ΔVOUT/ΔT RR IPEAK ISC For UTC LM7915 (VIN=-23V) PARAMETER SYMBOL Output Voltage VOUT Dropout Voltage VD Line Regulation ΔVOUT Load Regulation ΔVOUT Quiescent Current Quiescent Current Change Output Noise Voltage Output Voltage Drift Ripple Rejection Peak Current Short Circuit Current IQ ΔIQ eN ΔVOUT/ΔT RR IPEAK ISC TEST CONDITIONS MIN TYP MAX UNIT TJ=25°C -11.52 -12.0 -12.48 V VIN=-14.5V~-27V, -11.40 -12.60 V IOUT=5mA~1A, PD≦15W IOUT=1A TJ=25°C 2 V VIN =-14.5V~-30V TJ=25°C 12 240 mV VIN =-16V~-22V TJ=25°C 6 120 mV IOUT=5mA~1A TJ=25°C 12 240 mV IOUT=250mA~750mA TJ=25°C 4 120 mV TJ=25°C 3 6 mA IOUT=5mA~1A 0.05 0.5 mA 0.1 1.0 mA VIN=-14.5V~-30V f=10Hz~100kHz Ta=25°C 200 μV IOUT=5mA -0.8 mV/°C VIN=-15V~-25V, f=120Hz 54 60 dB TJ=25°C 2.2 A VIN=-35V Ta=25°C 300 mA TEST CONDITIONS MIN TYP MAX UNIT TJ=25°C -14.40 -15.0 -15.60 V VIN=-17.5V~-30V -14.25 -15.75 V IOUT=5mA~1A, PD≦15W IOUT=1A TJ=25°C 2 V VIN=-17.5V~-30V TJ=25°C 12 300 mV VIN=-20V~-26V TJ=25°C 6 150 mV IOUT=5mA~1A TJ=25°C 12 300 mV IOUT=250mA~750mA TJ=25°C 4 150 mV TJ=25°C 3 6 mA IOUT=5mA~1A 0.05 0.5 mA 0.1 1.0 mA VIN=-17.5V~-30.5V f=10Hz~100kHz Ta=25°C 250 μV IOUT=5mA -0.9 mV/°C VIN=-18.5V~-28.5V, f=120Hz 54 60 dB TJ=25°C 2.2 A VIN=-35V Ta=25°C 300 mA UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 7 QW-R101-007.F LM79XX LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS(Cont.) For UTC LM7918 (VIN=-27V) PARAMETER SYMBOL Output Voltage VOUT Dropout Voltage VD Line Regulation ΔVOUT Load Regulation ΔVOUT Quiescent Current Quiescent Current Change Output Noise Voltage Output Voltage Drift Ripple Rejection Peak Current Short Circuit Current For UTC LM7924 (VIN=-33V) PARAMETER Output Voltage Dropout Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Output Voltage Drift Ripple Rejection Peak Current Short Circuit Current IQ ΔIQ eN ΔVOUT/ΔT RR IPEAK ISC TEST CONDITIONS MIN TYP MAX UNIT TJ=25°C -17.28 -18.0 -18.72 V VIN=-21V~-33V -17.10 -18.90 V IOUT=5mA~1A, PD≦15W IOUT=1A TJ=25°C 2 V VIN =-21V~-33V TJ=25°C 15 360 mV TJ=25°C 8 180 mV VIN =-24V~-30V IOUT=5mA~1A TJ=25°C 15 360 mV TJ=25°C 5.0 180 mV IOUT=250mA~750mA TJ=25°C 3 6 mA IOUT=5mA~1A 0.05 0.5 mA VIN=-21V~-32V 0.1 1.0 mA f=10Hz~100kHz Ta=25°C 300 μV IOUT=5mA -1 mV/°C VIN=-22V~-32V, f=120Hz 54 60 dB TJ=25°C 2.2 A VIN=-35V Ta=25°C 300 mA SYMBOL TEST CONDITIONS MIN TJ=25°C -23.04 VOUT VIN=-27V~-38V -22.80 IOUT=5mA~1A, PD≦15W IOUT=1.0A VD TJ=25°C VIN=-27V~-38V TJ=25°C ΔVOUT VIN=-30V~-36V TJ=25°C IOUT=5mA~1A TJ=25°C ΔVOUT IOUT=250mA~750mA TJ=25°C IQ TJ=25°C IOUT=5mA~1A ΔIQ VIN =-27V~-38V f=10Hz~100kHz Ta=25°C eN ΔVOUT/ΔT IOUT=5mA VIN =-28V~-38V, f=120Hz 54 RR TJ=25°C IPEAK VIN=-35V Ta=25°C ISC UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TYP -24 MAX UNIT -24.96 V -25.20 2 15 8 15 5.0 3 0.05 0.1 400 -1 60 2.2 300 480 240 480 240 6 0.5 1.0 V V mV mV mV mV mA mA mA μV mV/°C dB A mA 7 of 7 QW-R101-007.F LM79XX LINEAR INTEGRATED CIRCUIT APPLICATION CIRCUITS Fig.1 Fixed output regulator +20V UTC LM7815 1 +15V 3 0.33 F 2 0.1 F 1N4001 2.2 F 1 1 F 1N4001 2 UTC LM7915 3 -20V -15V Fig.2 Split power supply(+-15V,1A) C3 2.5 F CI 2.2 F R1 CO 1 F 1 2 UTC LM79XX 3 R2 -VIN -VOUT 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. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 7 QW-R101-007.F