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KA7805A Dataheets PDF



Part Number KA7805A
Manufacturers Fairchild
Logo Fairchild
Description 3-Terminal 1A Positive Voltage Regulator
Datasheet KA7805A DatasheetKA7805A Datasheet (PDF)

www.fairchildsemi.com KA78XX/KA78XXA 3-Terminal 1A Positive Voltage Regulator Features • • • • • Output Current up to 1A Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area Protection Description The KA78XX/KA78XXA series of three-terminal positive regulator are available in the TO-220/D-PAK package and with several fixed output voltages, making them useful in a wide range of applications. Each type empl.

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www.fairchildsemi.com KA78XX/KA78XXA 3-Terminal 1A Positive Voltage Regulator Features • • • • • Output Current up to 1A Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area Protection Description The KA78XX/KA78XXA series of three-terminal positive regulator are available in the TO-220/D-PAK 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. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. TO-220 1 D-PAK 1 1. Input 2. GND 3. Output Internal Block Digram Rev. 1.0.0 ©2001 Fairchild Semiconductor Corporation KA78XX/KA78XXA Absolute Maximum Ratings Parameter Input Voltage (for VO = 5V to 18V) (for VO = 24V) Thermal Resistance Junction-Cases (TO-220) Thermal Resistance Junction-Air (TO-220) Operating Temperature Range (KA78XX/A/R) Storage Temperature Range Symbol VI VI RθJC RθJA TOPR TSTG Value 35 40 5 65 0 ~ +125 -65 ~ +150 ° Unit V V C/W ° ° °C/W C C Electrical Characteristics (KA7805/KA7805R) (Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =10V, CI= 0.33µF, CO=0.1µF, unless otherwise specified) Parameter Symbol TJ =+25 oC Output Voltage VO 5.0mA ≤ Io ≤ 1.0A, PO ≤ 15W VI = 7V to 20V TJ=+25 oC TJ=+25 oC TJ =+25 oC IO = 5mA to 1.0A VI= 7V to 25V IO= 5mA f = 10Hz to 100KHz, TA=+25 oC f = 120Hz VO = 8V to 18V IO = 1A, TJ =+25 oC f = 1KHz VI = 35V, TA =+25 TJ =+25 C o oC Conditions KA7805 Min. 4.8 4.75 62 Typ. Max. 5.0 5.0 4.0 1.6 9 4 5.0 0.03 0.3 -0.8 42 73 2 15 230 2.2 5.2 5.25 100 50 100 50 8.0 0.5 1.3 - Unit V mV mV mA mA mV/ oC µV/VO dB V mΩ mA A Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current Regline Regload IQ ∆IQ ∆VO/∆T VN RR VDrop rO ISC IPK VO = 7V to 25V VI = 8V to 12V IO = 5.0mA to1.5A IO =250mA to 750mA Note: 1. Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account separately. Pulse testing with low duty is used. 2 KA78XX/KA78XXA Electrical Characteristics (KA7806/KA7806R) (Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =11V, CI= 0.33µF, CO=0.1µF, unless otherwise specified) Parameter Symbol TJ =+25 oC Output Voltage VO 5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W VI = 8.0V to 21V TJ =+25 oC TJ =+25 oC TJ =+25 oC IO = 5mA to 1A VI = 8V to 25V IO = 5mA f = 10Hz to 100KHz, TA =+25 oC f = 120Hz VI = 9V to 19V IO = 1A, TJ =+25 oC f = 1KHz VI= 35V, TA=+25 oC TJ =+25 C o Conditions KA7806 Min. Typ. Max. 5.75 5.7 59 6.0 6.0 5 1.5 9 3 5.0 -0.8 45 75 2 19 250 2.2 6.25 6.3 120 60 120 60 8.0 0.5 1.3 - Unit V mV mV mA mA mV/ o C µV/Vo dB V mΩ mA A Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current Regline Regload IQ ∆IQ ∆VO/∆T VN RR VDrop rO ISC IPK VI = 8V to 25V VI = 9V to 13V IO =5mA to 1.5A IO =250mA to750mA Note: 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 3 KA78XX/KA78XXA Electrical Characteristics (KA7808/KA7808R) (Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =14V, CI= 0.33µF, CO=0.1µF, unless otherwise specified) Parameter Symbol TJ =+25 oC Output Voltage VO 5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W VI = 10.5V to 23V TJ =+25 oC VI = 10.5V to 25V VI = 11.5V to 17V IO = 5.0mA to 1.5A Load Regulation (Note1) Quiescent Current Quiescent Current Change Output Voltage Drift Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current Regload IQ ∆ IQ ∆VO/∆T VN RR VDrop rO ISC IPK TJ =+25 oC TJ =+25 oC IO = 5mA to 1.0A VI = 10.5A to 25V IO = 5mA f = 10Hz to 100KHz, TA =+25 C f = 120Hz, VI= 11.5V to 21.5V IO = 1A, TJ=+25 C f = 1KHz VI= 35V, TA TJ =+25 oC =+25 oC o o Conditions KA7808 Min. 7.7 7.6 56 Typ. 8.0 8.0 5.0 2.0 10 5.0 5.0 0.05 0.5 -0.8 52 73 2 17 230 2.2 Max. 8.3 8.4 160 80 160 80 8.0 0.5 1.0 - Unit V mV Line Regulation (Note1) Regline IO= 250mA to 750mA mV mA mA mV/ oC µV/Vo dB V mΩ mA A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 4 KA78XX/KA78XXA Electrical Characteristics (KA7809/KA7809R) (Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =15V, CI= 0.33µF,.


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