MC79XXCT VISHAY | Alldatasheet

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Technical content

Features

  • Output current in excess of 1.5 Ampere
  • No external components required
  • Internal thermal overload protection
  • Internal short-circuit current limiting
  • Output transistor safe-area compensation
  • Output voltage offered in 2% tolerance Mechanical Data Case: TO-220 Package Weight:approx. 2.24g Case outline is on the back page Pin Arrangement Input Output R SC GND Reference Voltage Short Circuit Protection I1 I2 Internal Block Diagram OutputInput Cin 0.33µF MC79xx Co 0.1µF 1.Ground 2.Input 3.Output (heatsink connected to pin 2) Standard Application Notes: A common ground is required between the input and the output voltages. The input voltage must remain typically 2.0V more negative even during the high point on the input ripple voltage. xx = these two digits of the part number indicate output voltage. Cin is required if regulator is located an appreciable distance from power supply filter. Co improves stability and transient response. 1 2 3 TO-220 New Product 3-Terminal Fixed Negative Voltage Regulators MC79xxCT Series Vishay formerly General Semiconductor Document Number 74814 www.vishay.com 11-Jun-02 1

Vin = –10V, Iout = 500mA, Cin = 2µF, Cout = 1µF; TJ = 0°C to 125°C, unless otherwise noted. Parameter Symbol Test Conditions Min. Typ. Max. UnitCircuit VOutput Voltage Vo 1 Vin= –7 to –20V, –4.85 —– 5.15Io = 5mA to 1A Line Regulation ∆REG line 1 Vin= –7 to –25V — 3 100 mV(TJ = 25°C) Vin= –8 to –12V — 15 0 Load Regulation ∆REG load 1 Io = 5mA to 1.5A — 10 100 mV(TJ = 25°C) Io = 250mA to 750mA — 35 0 Quiescent Current I q 2T J = 25°C — 24 m A Quiescent Current Change ∆Iq 2 Vin= –7 to –25V —— 1.3 mA(TJ = 25°C) Io = 5mA to 1A —— 0.5 Output Noise Voltage (TJ = 25°C) V n 1 f = 10Hz to 100KHz — 40 — µV Ripple Rejection Ratio RR 3 Vin= –8 to –18V 62 74 — dBIo = 100mA, f = 120Hz Dropout Voltage V drop Io = 1.0A, TJ = 25°C — 1.1 — V Peak Output Current Io- peak 1T J = 25°C — 2.1 — A Temp. Coefficient of Output Voltage∆Vo/∆TA 1 Io = 5mA, T J = 0 to125°C —– 0.4 — mV/°C Note: Where the condition TJ = 25°C is specified, pulse testing (<10ms) with low duty cycle is required to maintain junction temperature stability. Maximum Ratings Ratings at 25°C ambient temperature unless otherwise specified. Parameter Symbol Value Unit Input Voltage(1) Vin –30 V Input Voltage(2) Vin –40 V Power Dissipation(3) PD 15 W Operating Junction Temperature Range T J –20 to +150 °C Storage Junction Temperature Range T stg –65 to +150 °C Notes:(1) MC7905 to MC7918 (2) MC7924 (3) Follow the derating curve. When T J exceeds 150°C, the internal circuit cuts off the output 2 of 8 MC79xxCT Series Vishay formerly General Semiconductor www.vishay.com Document Number 74814 2 11-Jun-02

Vin = –11V, Iout = 500mA, Cin = 2µF, Cout = 1µF; TJ = 0°C to 125°C, unless otherwise noted. Parameter Symbol Test Conditions Min. Typ. Max. UnitCircuit VOutput Voltage V o 1 Vin= –8 to –21V, –5.82 —– 6.18Io = 5mA to 1A Line Regulation REG line 1 Vin= –8 to –25V — 4 120 mV(TJ = 25°C) Vin= –9 to –13V — 1.5 60 Load Regulation REG load 1 Io = 5mA to 1.5A — 10 120 mV(TJ = 25°C) Io = 250mA to 750mA — 36 0 Quiescent Current I q 2T J = 25°C — 24 m A Quiescent Current Change ∆Iq 2 Vin= –8 to –25V —— 1.3 mA(TJ = 25°C) Io = 5mA to 1A —— 0.5 Output Noise Voltage (TJ = 25°C) V n 1 f = 10Hz to 100KHz — 44 — µV Ripple Rejection Ratio RR 3 Vin= –9 to –19V 60 73 — dBIo = 100mA, f = 120Hz Dropout Voltage V drop Io = 1.0A, TJ = 25°C — 1.1 — V Peak Output Current Io- peak 1T J = 25°C — 2.1 — A Temp. Coefficient of Output Voltage∆Vo/∆TA 1 Io = 5mA, T J = 0 to125°C —– 0.5 — mV/°C Vin = –14V, Iout = 500mA, Cin = 2µF, Cout = 1µF; TJ = 0°C to 125°C, unless otherwise noted. Parameter Symbol Test Conditions Min. Typ. Max. UnitCircuit VOutput Voltage V o 1 Vin= –10.5 to –23V, –7.76 —– 8.24Io = 5mA to 1A Line Regulation REG line 1 Vin= –10.5 to –25V — 6 160 mV(TJ = 25°C) Vin= –11 to –15V — 28 0 Load Regulation REG load 1 Io = 5mA to 1.5A — 12 160 mV(TJ = 25°C) Io = 250mA to 750mA — 48 0 Quiescent Current I q 2T J = 25°C — 2.2 4.5 mA Quiescent Current Change ∆Iq 2 Vin= –10.5 to –25V —— 1 mA(TJ = 25°C) Io = 5mA to 1A —— 0.5 Output Noise Voltage (TJ = 25°C) V n 1 f = 10Hz to 100KHz — 52 — µV Ripple Rejection Ratio RR 3 Vin= –11 to –21V 56 71 — dBIo = 100mA, f = 120Hz Dropout Voltage V drop Io = 1.0A, TJ = 25°C — 1.1 — V Peak Output Current Io- peak 1T J = 25°C — 2.1 — A Temp. Coefficient of Output Voltage∆Vo/∆TA 1 Io = 5mA, T J = 0 to125°C —– 0.6 — mV/°C MC79xxCT Series Vishay formerly General Semiconductor Document Number 74814 www.vishay.com 11-Jun-02 3

Vin = –15V, Iout = 500mA, Cin = 2µF, Cout = 1µF; TJ = 0°C to 125°C, unless otherwise noted. Parameter Symbol Test Conditions Min. Typ. Max. UnitCircuit VOutput Voltage V o 1 Vin= –11.5 to –24V, –8.73 —– 9.27Io = 5mA to 1A Line Regulation REG line 1 Vin= –11.5 to –27V — 7 180 mV(TJ = 25°C) Vin= –12 to –16V — 29 0 Load Regulation REG load 1 Io = 5mA to 1.5A — 12 180 mV(TJ = 25°C) Io = 250mA to 750mA — 49 0 Quiescent Current I q 2T J = 25°C — 2.2 4.5 mA Quiescent Current Change ∆Iq 2 Vin = –11.5 to –27V —— 1 mA(TJ = 25°C) Io = 5mA to 1A —— 0.5 Output Noise Voltage (TJ = 25°C) V n 1 f = 10Hz to 100KHz — 58 — µV Ripple Rejection Ratio RR 3 Vin= –12 to –22V 56 71 — dBIo = 100mA, f = 120Hz Dropout Voltage V drop Io = 1.0A, TJ = 25°C — 1.1 — V Peak Output Current Io- peak 1T J = 25°C — 2.1 — A Temp. Coefficient of Output Voltage∆Vo/∆TA 1 Io = 5mA, T J = 0 to125°C — 0.6 — mV/°C Vin = –19V, Iout = 500mA, Cin = 2µF, Cout = 1µF; TJ = 0°C to 125°C, unless otherwise noted. Parameter Symbol Test Conditions Min. Typ. Max. UnitCircuit VOutput Voltage V o 1 Vin= –14.5 to –27V, –11.64 —– 12.36Io = 5mA to 1A Line Regulation REG line 1 Vin= –14.5 to –30V — 10 240 mV(TJ = 25°C) Vin= –15 to –19V — 3 120 Load Regulation REG load 1 Io = 5mA to 1.5A — 12 240 mV(TJ = 25°C) Io = 250mA to 750mA — 4 120 Quiescent Current I q 2T J = 25°C — 2.5 5 mA Quiescent Current Change ∆Iq 2 Vin= –14.5 to –30V —— 1 mA(TJ = 25°C) Io = 5mA to 1A —— 0.5 Output Noise Voltage (TJ = 25°C) V n 1 f = 10Hz to 100KHz — 75 — µV Ripple Rejection Ratio RR 3 Vin= –15 to –25V 55 70 — dBIo = 100mA, f = 120Hz Dropout Voltage V drop Io = 1.0A, TJ = 25°C — 1.1 — V Peak Output Current Io- peak 1T J = 25°C — 2.1 — A Temp. Coefficient of Output Voltage∆Vo/∆TA 1 Io = 5mA, T J = 0 to125°C —– 0.8 — mV/°C MC79xxCT Series Vishay formerly General Semiconductor www.vishay.com Document Number 74814 4 11-Jun-02

Vin = –23V, Iout = 500mA, Cin = 2µF, Cout = 1µF; TJ = 0°C to 125°C, unless otherwise noted. Parameter Symbol Test Conditions Min. Typ. Max. UnitCircuit VOutput Voltage V o 1 Vin= –17.5 to –30V, –14.55 —– 15.45Io = 5mA to 1A Line Regulation REG line 1 Vin= –17.5 to –30V — 11 300 mV(TJ = 25°C) Vin= –18 to –22V — 3 150 Load Regulation REG load 1 Io = 5mA to 1.5A — 12 300 mV(TJ = 25°C) Io = 250mA to 750mA — 4 150 Quiescent Current I q 2T J = 25°C — 2.5 5 mA Quiescent Current Change ∆Iq 2 Vin= –17.5 to –30V —— 1 mA(TJ = 25°C) Io = 5mA to 1A —— 0.5 Output Noise Voltage (TJ = 25°C) V n 1 f = 10Hz to 100KHz — 90 — µV Ripple Rejection Ratio RR 3 Vin= –18 to –28V 54 69 — dBIo = 100mA, f = 120Hz Dropout Voltage V drop Io = 1.0A, TJ = 25°C — 1.1 — V Peak Output Current Io- peak 1T J = 25°C — 2.1 — A Temp. Coefficient of Output Voltage∆Vo/∆TA 1 Io = 5mA, T J = 0 to125°C — 0.9 — mV/°C Vin = –27V, Iout = 500mA, Cin = 2µF, Cout = 1µF; TJ = 0°C to 125°C, unless otherwise noted. Parameter Symbol Test Conditions Min. Typ. Max. UnitCircuit VOutput Voltage V o 1 Vin= –21 to –33V, –17.46 —– 18.54Io = 5mA to 1A Line Regulation REG line 1 Vin= –21 to –33V — 15 360 mV(TJ = 25°C) Vin= –22 to –26V — 5 180 Load Regulation REG load 1 Io = 5mA to 1.5A — 12 360 mV(TJ = 25°C) Io = 250mA to 750mA — 4 180 Quiescent Current I q 2T J = 25°C — 2.5 5 mA Quiescent Current Change ∆Iq 2 Vin= –21 to –33V —— 1 mA(TJ = 25°C) Io = 5mA to 1A —— 0.5 Output Noise Voltage (TJ = 25°C) V n 1 f = 10Hz to 100KHz — 110 — µV Ripple Rejection Ratio RR 3 Vin= –21 to –31V 53 68 — dBIo = 100mA, f = 120Hz Dropout Voltage V drop Io = 1.0A, TJ = 25°C — 1.1 — V Peak Output Current Io- peak 1T J = 25°C — 2.1 — A Temp. Coefficient of Output Voltage∆Vo/∆TA 1 Io = 5mA, T J = 0 to125°C —– 1 — mV/°C MC79xxCT Series Vishay formerly General Semiconductor Document Number 74814 www.vishay.com 11-Jun-02 5

Vin = –33V, Iout = 500mA, Cin = 2µF, Cout = 1µF; TJ = 0°C to 125°C, unless otherwise noted. Parameter Symbol Test Conditions Min. Typ. Max. UnitCircuit VOutput Voltage V o 1 Vin= –26 to –38V, –23.28 —– 24.72Io = 5mA to 1A Line Regulation REG line 1 Vin= –26 to –38V — 18 480 mV(TJ = 25°C) Vin= –27 to –32V — 6 240 Load Regulation REG load 1 Io = 5mA to 1.5A — 12 480 mV(TJ = 25°C) Io = 250mA to 750mA — 4 240 Quiescent Current I q 2T J = 25°C — 35 m A Quiescent Current Change ∆Iq 2 Vin= –26 to –38V —— 1 mA(TJ = 25°C) Io = 5mA to 1A —— 0.5 Output Noise Voltage (TJ = 25°C) V n 1 f = 10Hz to 100KHz — 170 — µV Ripple Rejection Ratio RR 3 Vin= –26 to –36V 50 65 — dBIo = 100mA, f = 120Hz Dropout Voltage V drop Io = 1.0A, TJ = 25°C — 1.1 — V Peak Output Current Io- peak 1T J = 25°C — 2.1 — A Temp. Coefficient of Output Voltage∆Vo/∆TA 1 Io = 5mA, T J = 0 to125°C —– 1 — mV/°C Io 1 3MC79xx V Test Circuit 1 Io 1 3MC79xx V Io 1µF 1 3MC79xxA Test Circuit 2 Test Circuit 3 2µF +2µF 1µF 1µF 2µF MC79xxCT Series Vishay formerly General Semiconductor www.vishay.com Document Number 74814 6 11-Jun-02

Characteristic Curves(TA = 25°C unless otherwise noted) 1.0 25 50 75 100 125 150 Fig. 1 – Power Dissipation vs. Ambient Temperature PO -- Power Dissipation (W) TA -- Ambient Temperature (°C) 0.1 0 6.0 12 18 24 30 Fig. 3 – Peak Output Current Io -- Output Current (A) Input -- Output Voltage Differential (V) 1.0 2.0 2.5 0.5 1.5 10 100 1.0K 10K 100K RR -- Ripple Rejection (db) f -- Frequency (HZ) 100 4.0 8.0 12 16 20 24 Fig. 5 – Ripple Rejection vs. Output Voltage RR -- Ripple Rejection (db) Vo -- Output Voltage (V) Infinite Heatsink θHS = 5°C/W θHS = 15°C/W No Heatsink θJC = 5°C/W θJA = 65°C/W PD(max) = 15W 6.06 6.10 6.14 6.18 6.22 6.26 --25 0 25 50 75 100 125 150 175 Fig. 6 – Output Voltage vs. Junction Temperature VO -- Output Voltage (-V) TJ -- Junction Temperature (°C) 250 50 75 100 125 Fig. 2 – Quiescent Current IIB -- Input Bias Current (mA) TJ -- Junction Temperature (°C) Fig. 4 –Ripple Rejection Ratio vs. Frequency Vin = --11V Vo = --6.0V Io = 20mA Vin = --11V Vo = --6.0V Io = 20mA f = 120Hz Io = 20mA Vin = 1.0V(RMS) 1.8 1.9 2.0 Vin = -11V VO = -6.0V IO = 20mA MC79xxCT Series Vishay formerly General Semiconductor Document Number 74814 www.vishay.com 11-Jun-02 7

13.9 ± 0.41 2.53 ± 0.185 28.7 ± 0.92 3.94 ± 0.375 2.69 ± 0.25 0.8 ± 0.12 1.3 ± 0.185 1.27 ± 0.12 2.55 ± 0.375 4.85 ± 0.375 0.387 ± 0.09 8.54 ± 0.26 6.26 ± 0.25 14.8 ± 0.51 TO-220 Case Outline Dimensions in millimeters MC79xxCT Series Vishay formerly General Semiconductor www.vishay.com Document Number 74814 8 11-Jun-02