MC7909CT

LM7905 FAIRCHILD | Alldatasheet

Document overview

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• PDF pages: 18

Technical content

Features

• Output Current in Excess of 1A
• Output V oltages of -5, -6, -8 , -9, -10, -12, -15, -18 and - 24V
• Internal Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe Operating Area Compensation

Description

The MC79XX / MC79XXA/ LM79XX series of three terminal negative regulators are available in TO-220 package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. TO-220 1. GND 2. Input 3. Output Vin Internal Block Digram VOLTAGE REFERENCE PROTECTION CIRCUITRY Rsc GND I1 I2 Out In Output Input MC79XX/MC79XXA/LM79XX 3-Terminal 1A Negative Voltage Regulator

Note: 1. Thermal resistance test board Size: 76.2mm * 114.3mm * 1.6mm(1S0P) JEDEC standard: JESD51-3, JESD51-7 2. Assume no ambient airflow (VI = -10V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.) Note 3. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Value Unit Input Voltage V I -35 V Thermal Resistance Junction-Case (Note1) R θJC 5 °C/WThermal Resistance Junction-Air (Note1, 2) R θJA 65 Operating Temperature Range T OPR 0 ~ +125 °C Storage Temperature Range T STG -65 ~ +150 °C Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V O VIO = 5mA to 1A, PO ≤ 15W Line Regulation (Note3) ∆VO TJ = +25°C VI = -7V to -25V - 35 100 mVVI = -8V to -12V - 8 50 Load Regulation (Note3) ∆VO TJ = +25°C IO = 5mA to 1.5A - 10 100 mV TJ =+25°C IO = 250mA to 750mA -3 5 0 Quiescent Current I Q TJ =+25°C- 3 6 m A Quiescent Current Change ∆IQ IO = 5mA to 1A - 0.05 0.5 mA VI = -8V to -25V - 0.1 0.8 Temperature Coefficient of VD ∆Vo/∆TI O = 5mA - - 0.4 - mV/ °C Output Noise Voltage V N f = 10Hz to 100kHz TA =+25°C -4 0 - µV Ripple Rejection RR f = 120Hz ∆VI = 10V 54 60 - dB Dropout Voltage V D TJ = +25°C IO = 1A -2 - V Short Circuit Current I SC TJ =+25°C, VI = -35V - 300 - mA Peak Current I PK TJ =+25°C- 2 . 2 - A

(VI = -11V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.) Note 1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V O VIO = 5mA to 1A, PO ≤ 15W Line Regulation (Note1) ∆VO TJ = +25°C VI = -8V to -25V - 10 120 mVVI = -9V to -13V - 5 60 Load Regulation (Note1) ∆VO TJ = +25°C IO = 5mA to 1.5A - 10 120 mV TJ =+25°C IO = 250mA to 750mA -3 6 0 Quiescent Current I Q TJ =+25°C- 3 6 m A Quiescent Current Change ∆IQ IO = 5mA to 1A - 0.05 0.5 mA VI = -8V to -25V - 0.1 1.3 Temperature Coefficient of VD ∆Vo/∆TI O = 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 = 10V 54 60 - dB Dropout Voltage V D TJ = +25°C IO = 1A -2- V Short Circuit Current I SC TJ = +25°C, VI = -35V - 300 - mA Peak Current I PK TJ = +25°C- 2 . 2 - A

(VI = -14V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.) Note 1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V O VIO = 5mA to 1A, PO ≤ 15W Line Regulation (Note1) ∆VO TJ = +25°C VI = -10.5V to -25V - 10 160 mVVI = -11V to -17V - 5 80 Load Regulation (Note1) ∆VO TJ = +25°C IO = 5mA to 1.5A - 12 160 mV TJ =+25°C IO = 250mA to 750mA -4 8 0 Quiescent Current I Q TJ =+25°C- 3 6 m A Quiescent Current Change ∆IQ IO = 5mA to 1A - 0.05 0.5 mA VI = -10.5V to -25V - 0.1 1 Temperature Coefficient of VD ∆Vo/∆TI O = 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 = 10V 54 60 - dB Dropout Voltage V D TJ = +25°C IO = 1A -2- V Short Circuit Current I SC TJ = +25°C, VI = -35V - 300 - mA Peak Current I PK TJ = +25°C- 2 . 2 - A

(VI = -15V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.) Note: 1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V O VIO = 5mA to 1A, PO ≤ 15W Line Regulation (Note1) ∆VO TJ = +25°C VI = -11.5V to -26V - 10 180 mVVI = -12V to -18V - 5 90 Load Regulation (Note1) ∆VO TJ = +25°C IO = 5mA to 1.5A - 12 180 mV TJ = +25°C IO = 250mA to 750mA -4 9 0 Quiescent Current I Q TJ = +25°C- 3 6 m A Quiescent Current Change ∆IQ IO = 5mA to 1A - 0.05 0.5 mA VI = -11.5V to -26V - 0.1 1 Temperature Coefficient of VD ∆Vo/∆TI O = 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 = 10V 54 60 - dB Dropout Voltage V D TJ = +25°C IO = 1A -2- V Short Circuit Current I SC TJ = +25°C, VI = -35V - 300 - mA Peak Current I PK TJ = +25°C- 2 . 2 - A

(VI = -17V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.) Note: 1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V O VIO = 5mA to 1A, Pd ≤ 15W Line Regulation (Note1) ∆VO TJ = +25°C VI = -12.5V to -28V - 12 200 mVVI = -14V to -20V - 6 100 Load Regulation (Note1) ∆VO TJ = +25°C IO = 5mA to 1.5A - 12 200 mV TJ = +25°C IO = 250mA to 750mA - 4 100 Quiescent Current I Q TJ = +25°C- 3 6 m A Quiescent Current Change ∆IQ IO = 5mA to 1A - 0.05 0.5 mA VI = -12.5V to -28V - 0.1 1 Temperature Coefficient of VO ∆Vo/∆TI O = 5mA - -1 - mV/ °C Output Noise Voltage V N 10Hz ≤ f ≤ 100kHz TA =+25°C - 280 - µV Ripple Rejection RR f = 120Hz ∆VI = 10V 54 60 - dB Dropout Voltage V D TJ = +25°C IO = 1A -2- V Short Circuit Current I SC TJ = +25°C, VI = -35V - 300 - mA Peak Current I PK TJ = +25°C- 2 . 2 - A

(VI = -19V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.) Note: 1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V O VIO = 5mA to 1A, PO ≤ 15W Line Regulation (Note1) ∆VO TJ = +25°C VI = -14.5V to -30V - 12 240 mVVI = -16V to -22V - 6 120 Load Regulation (Note1) ∆VO TJ = +25°C IO = 5mA to 1.5A - 12 240 mV TJ = +25°C IO = 250mA to 750mA - 4 120 Quiescent Current I Q TJ = +25°C- 3 6 m A Quiescent Current Change ∆IQ IO = 5mA to 1A - 0.05 0.5 mA VI = -14.5V to -30V - 0.1 1 Temperature Coefficient of VD ∆Vo/∆TI O = 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 = 10V 54 60 - dB Dropout Voltage V D TJ = +25°C IO = 1A -2- V Short Circuit Current I SC TJ = +25°C, VI = -35V - 300 - mA Peak Current I PK TJ = +25°C- 2 . 2 - A

(VI = -23V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.) Note: 1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V O VIO = 5mA to 1A, PO ≤ 15W VI = -18V to -30V -14.25 -15 -15.75 Line Regulation (Note1) ∆VO TJ = +25°C VI = -17.5V to -30V - 12 300 mVVI = -20V to -26V - 6 150 Load Regulation (Note1) ∆VO TJ = +25°C IO = 5mA to 1.5A - 12 300 mV TJ = +25°C IO = 250mA to 750mA - 4 150 Quiescent Current I Q TJ = +25°C- 3 6 m A Quiescent Current Change ∆IQ IO = 5mA to 1A - 0.05 0.5 mA VI = -17.5V to -30V - 0.1 1 Temperature Coefficient of VD ∆Vo/∆TI O = 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 = 10V 54 60 - dB Dropout Voltage V D TJ = +25°C IO = 1A -2- V Short Circuit Current I SC TJ = +25°C, VI = -35V - 300 - mA Peak Current I PK TJ = +25°C- 2 . 2 - A

(VI = -27V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.) Note: 1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V O VIO = 5mA to 1A, PO ≤ 15W Line Regulation (Note1) ∆VO TJ = +25°C VI = -21V to -33V - 15 360 mVVI = -24V to -30V - 8 180 Load Regulation (Note1) ∆VO TJ = +25°C IO = 5mA to 1.5A - 15 360 mV TJ = +25°C IO = 250mA to 750mA - 5 180 Quiescent Current I Q TJ = +25°C- 3 6 m A Quiescent Current Change ∆IQ IO = 5mA to 1A - 0.05 0.5 mA VI = -21V to -33V - 0.1 1 Temperature Coefficient of VD ∆Vo/∆TI O = 5mA - -1 - mV/ °C Output Noise Voltage V N f = 10Hz to 100kHz TA = +25°C - 300 - µV Ripple Rejection RR f = 120Hz ∆VI = 10V 54 60 - dB Dropout Voltage V D TJ = +25°C IO = 1A -2- V Short Circuit Current I SC TJ = +25°C, VI = -35V - 300 - mA Peak Current I PK TJ = +25°C- 2 . 2 - A

(VI = -33V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.) Note: 1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V O VIO = 5mA to 1A, PO ≤ 15W VI = -27V to -38V -22.8 -24 -25.2 Line Regulation (Note1) ∆VO TJ = +25°C VI = -27V to -38V - 15 480 mVVI = -30V to -36V - 8 180 Load Regulation (Note1) ∆VO TJ = +25°C IO = 5mA to 1.5A - 15 480 mV TJ = +25°C IO = 250mA to 750mA - 5 240 Quiescent Current I Q TJ = +25°C- 3 6 m A Quiescent Current Change ∆IQ IO = 5mA to 1A - 0.05 0.5 mA VI = -27V to -38V - 0.1 1 Temperature Coefficient of VD ∆Vo/∆TI O = 5mA - -1 - mV/ °C Output Noise Voltage V N f = 10Hz to 100kHz TA = +25°C - 400 - µV Ripple Rejection RR f = 120Hz ∆VI = 10V 54 60 - dB Dropout Voltage V D TJ = +25°C IO = 1A -2- V Short Circuit Current I SC TJ = +25°C, VI = -35V - 300 - mA Peak Current I PK TJ = +25°C- 2 . 2 - A

(VI = -10V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.) Note: 1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V O VIO = 5mA to 1A, PO ≤ 15W Line Regulation (Note1) ∆VO TJ = +25°C VI = -7V to -20V IO=1A - 5 50 mV VI = -8V to -12V IO=1A - 2 25 VI = -7.5V to -25V - 7 50 VI = -8V to -12V , IO=1A - 7 50 Load Regulation (Note1) ∆VO TJ =+25°C, IO = 5mA to 1.5A - 10 100 mVTJ = +25°C IO = 250mA to 750mA -3 5 0 Quiescent Current I Q TJ = +25°C- 3 6 m A Quiescent Current Change ∆IQ IO = 5mA to 1A - 0.05 0.5 mAVI = -8V to -25V - 0.1 0.8 Temperature Coefficient of VD ∆Vo/∆TI O = 5mA - - 0.4 - mV/ °C Output Noise Voltage V N f = 10Hz to 100kHz TA = +25°C -4 0- µV Ripple Rejection RR f = 120Hz ∆VI = 10V 54 60 - dB Dropout Voltage V D TJ = +25°C IO = 1A -2- V Short Circuit Current I SC TJ = +25°C, VI = -35V - 300 - mA Peak Current I PK TJ = +25°C- 2 . 2 - A

(VI = -19V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.) Note: 1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V O VIO = 5mA to 1A, PO ≤ 15W Line Regulation (Note1) ∆VO TJ = +25°C VI = -14.5V to -27V Io = 1A - 12 120 mV VI = -16V to -22V Io = 1A -6 6 0 VI = -14.8V to -30V - 12 120 VI = -16V to -22V, Io = 1A - 12 120 Load Regulation (Note1) ∆VO TJ = +25°C IO = 5mA to 1.5A - 12 150 mVTJ = +25°C IO = 250mA to 750mA -4 7 5 Quiescent Current I Q TJ = +25°C- 3 6 m A Quiescent Current Change ∆IQ IO = 5mA to 1A - 0.05 0.5 mAVI = -15V to -30V - 0.1 1 Temperature Coefficient of VD ∆Vo/∆TI O = 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 = 10V 54 60 - dB Dropout Voltage V D TJ = +25°C IO = 1A -2-V Short Circuit Current I SC TJ = +25°C, VI = -35V - 300 - mA Peak Current I PK TJ = +25°C- 2 . 2 - A

(VI = -23V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.) Note: 1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects must be taken into account separately. Pulse testing with low duty is used. Parameter Symbol Conditions Min. Typ. Max. Unit Output Voltage V O VIO = 5mA to 1A, PO ≤ 15W VI = -18V to -30V -14.4 -15 -15.6 Line Regulation (Note1) ∆VO TJ = +25°C VI = -17.5V to -30V Io = 1A - 12 150 mV VI = -20V to -26V Io = 1A -6 7 5 VI = -17.9V to -30V - 12 150 VI = -20V to -26V, Io = 1A - 6 150 Load Regulation (Note1) ∆VO TJ = +25°C IO = 5mA to 1.5A - 12 150 mVTJ = +25°C IO = 250mA to 750mA -4 7 5 Quiescent Current I Q TJ = +25°C- 3 6 m A Quiescent Current Change ∆IQ IO = 5mA to 1A - 0.05 0.5 mAVI = -18.5V to -30V - 0.1 1 Temperature Coefficient of VD ∆Vo/∆TI O = 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 = 10V 54 60 - dB Dropout Voltage V D TJ = +25°C IO = 1A -2-V Short Circuit Current I SC TJ = +25°C, VI = -35V - 300 - mA Peak Current I PK TJ = +25°C- 2 . 2 - A

1.52 ±0.10 0.80 ±0.10 2.40 ±0.20 10.00 ±0.20 1.27 ±0.10 ø3.60 ±0.10 (8.70) 10.08 ±0.30 18.95MAX. (1.70) (3.70)(3.00) (1.46) (1.00) (45 1.30 ±0.10 1.30+0.10 –0.05 0.50+0.10 –0.05 2.54TYP [2.54 ±0.20] 2.54TYP [2.54 ±0.20] TO-220

Ordering Information

Product Number Output Voltage Tolerance Package Operating Temperature LM7905CT ±4% TO-220 0 ~ +125 °C Product Number Output Voltage Tolerance Package Operating Temperature MC7905CT ±4% TO-220 0 ~ +125 °C MC7906CT MC7908CT MC7909CT MC7910CT MC7912CT MC7915CT MC7918CT MC7924CT MC7905ACT ±2%MC7912ACT MC7915ACT

11/12/02 0.0m 001 Stock#DSxxxxxxxx  2002 Fairchild Semiconductor Corporation LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.