UNISONIC TECHNOLOGIES CO., LM79XX
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.
LINEAR INTEGRATED CIRCUIT
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 Package TO-220 TO-220F Pin Assignment 1 2 3 G I O G I O Packing Tube Tube
MARKING INFORMATION
PACKAGE VOLTAGE CODE 05:-5.0V 06:-6.0V 08:-8.0V 09:-9.0V 12:-12V 15:-15V 18:-18V 24:-24V MARKING
TO-220 TO-220F
Voltage Code Lot Code
UTC LM79
L: Lead Free G: Halogen Free Date Code
1
2
3
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LM79XX
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
GND
R1
R2
OUTPUT
Voltage Reference
Protection Circuitry
RSC INPUT
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7 of 7 QW-R101-007.F
LM79XX
ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
LINEAR INTEGRATED CIRCUIT
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 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 For UTC LM7906 (VIN=-11V) PARAMETER Output Voltage Dropout Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage 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 ΔI Q 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 SYMBOL VOUT VD ΔVOUT ΔVOUT IQ ΔI Q 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 SYMBOL MIN -4.80 -4.75 2 10 10 3 3 0.05 0.1 100 -0.4 60 2.2 300 TYP -6.00 TYP -5.0 MAX -5.20 -5.25 100 100 50 6 0.5 1.3 UNIT V V V mV mV mV mV mA mA mA μV mV/°C dB A mA UNIT V V V mV mV mV mV mA mA mA μV
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54
MIN -5.76 -5.70
MAX -6.24 -6.30
2 10 5 10 3 3 0.05 0.1 130
120 60 120 60 6 0.5 1.3
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LM79XX
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER Output Voltage Drift Ripple Rejection Peak Current Short Circuit Current For UTC LM7908 (VIN=-14V) 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 For UTC LM7909 (VIN=-15V) 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
LINEAR INTEGRATED CIRCUIT
SYMBOL TEST CONDITIONS ΔVOUT/ΔT IOUT=5mA RR VIN=-9V~-19V, f=120Hz IPEAK TJ=25°C ISC VIN=-35V Ta=25°C 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 ΔI Q 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 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 ΔI Q 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 SYMBOL SYMBOL MIN 54 TYP -0.5 60 2.2 300 TYP -8.0 MAX UNIT mV/°C dB A mA UNIT V V V mV mV mV mV mA mA mA μV mV/°C dB A mA UNIT V V V mV mV mV mV mA mA mA μV mV/°C dB A mA
MIN -7.68 -7.60
MAX -8.32 -8.40
54
2 10 5 12 4 3 0.05 0.1 175 -0.6 60 2.2 300 TYP -9.0
160 80 160 80 6 0.5 1.0
MIN -8.64 -8.55
MAX -9.36 -9.45
54
2.0 10 5 12 4 3 0.05 0.1 175 -0.6 60 2.2 300
180 90 180 90 6 0.5 1.0
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LM79XX
ELECTRICAL CHARACTERISTICS(Cont.)
For UTC LM7912 (VIN=-18V) 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 For UTC LM7915 (VIN=-23V) 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 SYMBOL VOUT VD ΔVOUT ΔVOUT IQ ΔI Q eN ΔVOUT/ΔT RR IPEAK ISC SYMBOL VOUT VD ΔVOUT ΔVOUT IQ ΔI Q eN ΔVOUT/ΔT RR IPEAK ISC
LINEAR INTEGRATED CIRCUIT
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
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LM79XX
ELECTRICAL CHARACTERISTICS(Cont.)
For UTC LM7918 (VIN=-27V) 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 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 SYMBOL VOUT VD ΔVOUT ΔVOUT IQ ΔI Q eN ΔVOUT/ΔT RR IPEAK ISC SYMBOL
LINEAR INTEGRATED CIRCUIT
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 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
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 ΔI Q 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
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LM79XX
APPLICATION CIRCUITS
LINEAR INTEGRATED CIRCUIT
Fig.1 Fixed output regulator
+20V 1 0.33 F
UTC LM7815
2
+15V 3 0.1 F 1N4001
2.2 F 2 -20V
1
1F 3
1N4001
UTC LM7915
-15V
Fig.2 Split power supply(+-15V,1A)
C3 2.5 F CI 2.2 F 2 -VIN
R1 CO 1F 1 R2 -VOUT
UTC LM79XX
3
Fig.3 Circuit for increasing output voltage
U TC 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.
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