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May 2006 LM78XX/LM78XXA 3-Terminal 1A …

2006 Fairchild Semiconductor Corporation 1 LM78XX/LM78 XXA Rev. LM78XX/LM78 XXA 3-Terminal 1A positive voltage Regulator May 2006 LM78XX/LM78 XXA3- terminal 1A positive voltage Regulator Features Output Current up to 1A Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24 Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area Protection General Description The LM78XX series of three terminal positive regulatorsare available in the TO-220 package and with severalfixed output voltages, making them useful in a widerange of applications. Each type employs internal currentlimiting, thermal shut down and safe operating area pro-tection, making it essentially indestructible.

4 www.fairchildsemi.com LM78XX/LM78XXA Rev. 1.0.1 LM78XX/LM78XXA 3-Terminal 1A Positive Voltage Regulator Electrical Characteristics (LM7806) (Continued)

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Transcription of May 2006 LM78XX/LM78XXA 3-Terminal 1A …

1 2006 Fairchild Semiconductor Corporation 1 LM78XX/LM78 XXA Rev. LM78XX/LM78 XXA 3-Terminal 1A positive voltage Regulator May 2006 LM78XX/LM78 XXA3- terminal 1A positive voltage Regulator Features Output Current up to 1A Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24 Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area Protection General Description The LM78XX series of three terminal positive regulatorsare available in the TO-220 package and with severalfixed output voltages, making them useful in a widerange of applications. Each type employs internal currentlimiting, thermal shut down and safe operating area pro-tection, making it essentially indestructible.

2 If adequateheat sinking is provided, they can deliver over 1A outputcurrent. Although designed primarily as fixed voltageregulators, these devices can be used with external com-ponents to obtain adjustable voltages and currents. Ordering Information Product NumberOutput voltage TolerancePackageOperating Temperature LM7805CT 4%TO-220-40 C to +125 CLM7806 CTLM7808 CTLM7809 CTLM7810 CTLM7812 CTLM7815 CTLM7818 CTLM7824 CTLM7805 ACT 2%0 C to +125 CLM7806 ACTLM7808 ACTLM7809 ACTLM7810 ACTLM7812 ACTLM7815 ACTLM7818 ACTLM7824 ACT 2 LM78XX/LM78 XXA Rev. LM78XX/LM78 XXA 3-Terminal 1A positive voltage RegulatorBlock Diagram Figure 1.

3 Pin Assignment Figure 2. Absolute Maximum Ratings Absolute maximum ratings are those values beyond which damage to the device may occur. The datasheet specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. Fairchild does not recommend operation outside datasheet specifications. SymbolParameterValueUnit V I Input VoltageV O = 5V to 18V35VV O = 24V40VR JC Thermal Resistance Junction-Cases (TO-220)5 C/WR JA Thermal Resistance Junction-Air (TO-220)65 C/WT OPR Operating Temperature Range LM78xx-40 to +125 CLM78xxA0 to +125T STG Storage Temperature Range-65 to +150 CStartingCircuitInput1 ReferenceVoltageCurrentGeneratorSOAP rotectionThermalProtectionSeries PassElementErrorAmplifierOutput3 GND211.

4 Input2. GND3. OutputGNDTO-220 3 LM78XX/LM78 XXA Rev. LM78XX/LM78 XXA 3-Terminal 1A positive voltage RegulatorElectrical Characteristics (LM7805) Refer to the test circuits. -40 C < T J < 125 C, I O = 500mA, V I = 10V, C I = F, unless otherwise specified. Notes: 1. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects mustbe taken into account separately. Pulse testing with low duty is These parameters, although guaranteed, are not 100% tested in production. V O Output VoltageT J = +25 I O 1A, P O 15W, V I = 7V to Regulation (1) T J = +25 CV O = 7V to 25V I = 8V to 12V Load Regulation (1) T J = +25 CI O = 5mA to O = 250mA to 750mA Q Quiescent CurrentT J = +25 C I Q Quiescent Current Change I O = 5mA to 1A I = 7V to 25V V O / TOutput voltage Drift (2) I O = 5mA mV/ CV N Output Noise Voltagef = 10Hz to 100kHz, T A = +25 C V/V O RRRipple Rejection (2) f = 120Hz, V O = 8V to dBV DROP Dropout VoltageI O = 1A, T J = +25 C Vr O Output Resistance (2)

5 F = 1kHz m I SC Short Circuit CurrentV I = 35V, T A = +25 C 230 mAI PK Peak Current (2) T J = +25 C A 4 LM78XX/LM78 XXA Rev. LM78XX/LM78 XXA 3-Terminal 1A positive voltage RegulatorElectrical Characteristics (LM7806) (Continued)Refer to the test circuits. -40 C < T J < 125 C, I O = 500mA, V I = 11V, C I = F, C O = F, unless otherwise specified. Notes: 3. Load and line regulation are specified at constant junction temperature. Changes in V O due to heating effects mustbe taken into account separately. Pulse testing with low duty is These parameters, although guaranteed, are not 100% tested in production.

6 V O Output VoltageT J = +25 I O 1A, P O 15W, V I = to Regulation (3) T J = +25 CV I = 8V to 25V I = 9V to 13V Load Regulation (3) T J = +25 CI O = 5mA to O = 250mA to 750mA Q Quiescent CurrentT J = +25 C I Q Quiescent Current ChangeI O = 5mA to 1A I = 8V to 25V V O / TOutput voltage Drift (4) I O = 5mA mV/ CV N Output Noise Voltagef = 10Hz to 100kHz, T A = +25 C V/V O RRRipple Rejection (4) f = 120Hz, V O = 8V to dBVDROPD ropout VoltageIO = 1A, TJ = +25 C VrOOutput Resistance(4)f = 1kHz m ISCS hort Circuit CurrentVI = 35V, TA = +25 C 250 mAIPKPeak Current(4)TJ = +25 C Rev.

7 3-Terminal 1A positive voltage RegulatorElectrical Characteristics (LM7808) (Continued)Refer to the test circuits. -40 C < TJ < 125 C, IO = 500mA, VI = 14V, CI = F, CO = F, unless otherwise :5. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects mustbe taken into account separately. Pulse testing with low duty is These parameters, although guaranteed, are not 100% tested in VoltageTJ = +25 IO 1A, PO 15W, VI = to Line Regulation(5)TJ = +25 CVI = to 25V = to 17V Load Regulation(5)TJ = +25 CIO = 5mA to = 250mA to 750mA CurrentTJ = +25 C IQQuiescent Current Change IO = 5mA to 1A = to 25V VO/ TOutput voltage Drift(6)IO = 5mA mV/ CVNO utput Noise Voltagef = 10Hz to 100kHz, TA = +25 C V/VORRR ipple Rejection(6)f = 120Hz, VO = to dBVDROPD ropout VoltageIO = 1A, TJ = +25 C VrOOutput Resistance(6)

8 F = 1kHz m ISCS hort Circuit CurrentVI = 35V, TA = +25 C 230 mAIPKPeak Current(6)TJ = +25 C Rev. 3-Terminal 1A positive voltage RegulatorElectrical Characteristics (LM7809) (Continued)Refer to the test circuits. -40 C < TJ < 125 C, IO = 500mA, VI = 15V, CI = F, CO = F, unless otherwise :7. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects mustbe taken into account separately. Pulse testing with low duty is These parameters, although guaranteed, are not 100% tested in VoltageTJ = +25 IO 1A, PO 15W, VI = to Regulation(7)TJ = +25 C VI = to 25V = 12V to 17V Load Regulation(7) TJ = +25 C IO = 5mA to = 250mA to 750mA CurrentTJ = +25 C IQQuiescent Current Change IO = 5mA to 1A = to 26V VO/ TOutput voltage Drift(8)IO = 5mA mV/ CVNO utput Noise Voltagef = 10Hz to 100kHz, TA = +25 C V/VORRR ipple Rejection(8)f = 120Hz, VO = 13V to dBVDROPD ropout VoltageIO = 1A, TJ = +25 C VrOOutput Resistance(8)

9 F = 1kHz m ISCS hort Circuit CurrentVI = 35V, TA = +25 C 250 mAIPKPeak Current(8)TJ = +25 C Rev. 3-Terminal 1A positive voltage RegulatorElectrical Characteristics (LM7810) (Continued)Refer to the test circuits. -40 C < TJ < 125 C, IO = 500mA, VI = 16V, CI = F, CO = F, unless otherwise :9. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects mustbe taken into account separately. Pulse testing with low duty is These parameters, although guaranteed, are not 100% tested in VoltageTJ = +25 IO 1A, PO 15W, VI = to Regulation(9)TJ = +25 CVI = to 25V = 13V to 25V Regulation(9)TJ = +25 CIO = 5mA to = 250mA to 750mA CurrentTJ = +25 C IQQuiescent Current Change IO = 5mA to 1A = to 29V VO/ TOutput voltage Drift(10)IO = 5mA mV/ CVNO utput Noise Voltagef = 10Hz to 100kHz, TA = +25 C V/VORRR ipple Rejection(10)f = 120Hz, VO = 13V to dBVDROPD ropout VoltageIO = 1A, TJ = +25 C VrOOutput Resistance(10)

10 F = 1kHz m ISCS hort Circuit CurrentVI = 35V, TA = +25 C 250 mAIPKPeak Current(10)TJ = +25 C Rev. 3-Terminal 1A positive voltage RegulatorElectrical Characteristics (LM7812) (Continued)Refer to the test circuits. -40 C < TJ < 125 C, IO = 500mA, VI = 19V, CI = F, CO = F, unless otherwise :11. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects mustbe taken into account separately. Pulse testing with low duty is These parameters, although guaranteed, are not 100% tested in VoltageTJ = +25 IO 1A, PO 15W, VI = to Regulation(11)TJ = +25 C VI = to 30V = 16V to 22V Load Regulation(11)TJ = +25 C IO = 5mA to = 250mA to 750mA CurrentTJ = +25 C IQQuiescent Current Change IO = 5mA to 1A = to 30V VO/ TOutput voltage Drift(12)IO = 5mA mV/ CVNO utput Noise Voltagef = 10Hz to 100kHz, TA = +25 C V/VORRR ipple Rejection(12)f = 120Hz, VI = 15V to dBVDROPD ropout VoltageIO = 1A, TJ = +25 C VrOOutput Resistance(12)


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