H7812

3-TERMINAL FIXED VOLTAGE REGULATOR Shantou Huashan Electronic Devices Co.,Ltd. H 7812 █ Description The H7812 series of three terminal positive Regulators are available in the 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. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulator, these devices can be used with external components to obtain adjustable voltages and currents. █ Features Output current up to 1A Output Voltages of 12V Thermal Overload Protection Short Circuit Protection Output Transistor Safe Operating Area Protection 1―INPUT 2―GND 3―OUTPUT TO-220 █ Absolute Maximum Ratings（Ta=25℃） VI——Input Voltage (for VO=5V to 18V)……………… 35V RθJC——Thermal Resistance Junction-Cases………… 5℃/W RθJA——Thermal Resistance Junction-Air………… 65℃/W TOPR——Operating Temperature Range…………… 0~125℃ TSTG——Storage Temperature Range…………… -65~150℃ 1 Shantou Huashan Electronic Devices Co.,Ltd. H 7812 （Refer to test circuit, unless otherwise specified，0℃≤TJ≤125℃,IO=500mA,VI=19V,CI=0.33μF,CO=0.1μF） Symbol Parameter Min. 11.5 VO Typ. 12 Max. 12.5 V 11.4 12 12.6 14.5V≤VI≤27V 10 ΔVO Line Regulation (Note1) 3.0 11 ΔVO Load Regulation (Note1) 5.0 IQ Quiescent Current 5.1 0.1 ΔIQ Quiescent Current Change 0.5 1.0 mV/ ΔVO/ΔT Output Voltage Drift -1 IO=5mA 120 8 0.5 mA 14.5V≤VI≤30V mA 120 240 mV TJ=25℃, 250mA≤IO≤750mA TJ=25℃ 5mA≤IO≤1.0A 240 mV TJ=25℃, 16V≤VI≤22V TJ=25℃, 5.0mA≤IO≤1.5A TJ=25℃, 14.5V≤VI≤30V Unit TJ=25℃ 5.OmA≤IO≤1.0A, PD≤15W, Conditions Output Voltage ℃ VN RR VD RO ISC IPK Output Noise Voltage Ripple Rejection Dropout Voltage Output Resistance Short Circuit Current Peak Current 55 76 71 2 18 230 2.2 μV dB V mΩ mA A TA=25℃, 10Hz≤f≤100kHz f=120Hz, 15V≤VI≤25V IO=1A, TJ=25℃ f=1kHz VI=35V, TA=25℃ TJ=25℃ 2 Shantou Huashan Electronic Devices Co.,Ltd. H 7812 █ 1、 2、 3、 4、 █ 5、 6、 3 Shantou Huashan Electronic Devices Co.,Ltd. H 7812 8、 7、 10、 9、 12、 11、 13、 4 Shantou Huashan Electronic Devices Co.,Ltd. H 7812 5