L7812CV KEXIN | Alldatasheet

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Technical content

www.kexin.com.cn 1 IC Positive Voltage Regulator L7812CV ■ Features

  • Output current up to 1.5 A
  • Output voltages of 12V
  • Thermal overload protection
  • Short circuit protection
  • 2 % output voltage tolerance (A version) 1 TO-220 2 3 (0.70) MAX1.47 (30 15.87 ± 0.20 6.68 ± 0.20 9.75 ± 0.30 4.70 ± 0.20 10.16 ± 0.20 (1.00x45 ) 2.54 ± 0.20 0.80 ± 0.10 9.40 ± 0.20 2.76 ± 0.20 0.35 ± 0.10 ø3.18 ± 0.10 2.54TYP [2.54 ± 0.20 ] 2.54TYP [2.54 ± 0.20 ] 0.50 +0.10 –0.05 3. OUTPUT 1. INPUT 2. GND ■ Absolute Maximum Ratings Ta = 25℃ Parameter Symbol Rating Unit Input Voltage for Vo=5 to 18V 35 Input Voltage for Vo=20 , 24V 40 Maximum Output Current IO Internally limited A Maximum Power Dissipation PD Internally limited W Thermal Resistance Junction-Ambient RthJA 50 Thermal Resistance Junction-Case RthJC 5 Operating Junction Temperature Range Topr 0 to 125 Junction Temperature TJ 150 Storage Temperature Range Tstg -65 to 150 VVI ℃/W ■ Typical Application

www.kexin.com.cn2 IC Positive Voltage Regulator L7812CV ■ Electrical Characteristics Ta = 25℃ Parameter Symbol Test Conditions Min Typ Max Unit TJ = 25°C 11.5 12 12.5 IO = 5 mA to 1 A, VI = 14.5 to 25 V 11.4 12 12.6 IO = 1 A, VI = 25 to 27 V, TJ = 25°C 11.4 12 12.6 VI = 14.5 to 30 V, TJ = 25°C 240 VI = 16 to 22 V, TJ = 25°C 120 IO = 5 mA to 1.5 A, TJ = 25°C 240 IO = 250 mA to 750 mA, TJ = 25°C 120 Output voltage drift △Vo/△T IO = 5 mA -1 mV/% Quiescent Current Id TJ = 25°C 8 IO = 5 mA to 1 A 0.5 VI = 14.5 to 30 V 1 Short circuit current ISC VI = 35 V, TJ = 25°C 0.35 Short circuit peak current ISCP TJ = 25°C 2.2 Output Noise Voltage VN B=10Hz to 100KHz ,TJ=25°C 75 uV Supply voltage rejection SVR VI = 15 to 25 V, f = 120 Hz 55 dB Output resistance Ro f=1KHZ 18 mΩ Dropout Voltage Vd Io = 1 A, TJ = 25°C 2 V mA A VO Output Voltage V mV Quiescent Current Change △ Id Line Regulation △ VO Load Regulation △ VO ■ Typical Application Schematic diagram

www.kexin.com.cn 3 IC Positive Voltage Regulator L7812CV ■ Typical Characterisitics Application circuits DC parameter L7812CV Dropout voltage vs. junction temperature Output voltage vs. junction temperature L7812CV L7812CV