JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD TO-220 Plastic-Encapsulate Voltage Regulator CJ7812 Three-terminal positive voltage regulator TO-220 FEATURES Maximum Output current IOM: 1.5 A Output voltage Vo: 12 V Continuous total dissipation 1.IN 2.GND 2 W (TJ = 25 ℃ ) PD: 123 3.OUT 15 W (TC= 25 ℃ ) ABSOLUTE MAXIMUM RATINGS(Operating temperature range applies unless otherwise specified) Parameter Symbol Value Unit Vi 35 V Input Voltage Thermal resistance junction-air RθJA 65 ℃/W Thermal resistance junction-cases RθJC 5 ℃/W Operating Junction Temperature Range TOPR 0-150 ℃ TSTG -65-150 ℃ Storage Temperature Range ELECTRICAL CHARACTERISTICS(Vi=19V,Io=500mA,0℃<TJ<125℃,Ci=0.33μF,Co=0.1μF, Parameter Symbol Test conditions TYP MAX UNIT 11.5 12.0 12.5 V 11.4 12 12.6 V TJ=25℃, 14.5V≤ Vi ≤30V 10 240 mV TJ=25℃, 16V≤Vi≤22V 3 120 mV TJ=25℃ Output voltage Vo Io= 5.0mA-1.0A, P<15W 14.5V≤ Vi ≤27V Load Regulation ∆Vo Line regulation ∆Vo Quiescent Current Quiescent Current Change Output voltage drift Iq ∆Iq △Vo/△T unless otherwise specified ) MIN TJ=25℃, IO=I5.0mA - 1.5A 11 240 mV TJ=25℃, IO=250mA - 750mA 5.0 120 mV TJ=25℃ 5.1 8 mA 5.0mA≤ IO ≤1.0A 0.5 mA 14.5V ≤Vi≤ 30V 1.0 mA IO=5mA -1 mV/℃ 76 μV Output Noise VoItage VN f =10Hz to 100KHz,TJ=25℃ Ripple Rejection RR f =120Hz, 15V≤ Vi ≤25V 71 dB Dropout Voltage Vd IO=1.0A,TJ=25℃ 2 V Output resistance RO f = 1KHz 18 mΩ 55 Short Circuit Current Isc Vi=35V, TJ=25℃ 230 mA Peak Current Ipk TJ=25℃ 2.2 A TYPICAL APPLICATION Typical Characteristics CJ7812