SEMICONDUCTOR KIA7805AF/API~KIA7824AF/API TECHNICAL DATA BIPOLAR LINEAR INTEGRATED CIRCUIT THREE TERMINAL POSITIVE VOLTAGE REGULATORS 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V, 24V. FEATURES ·Internal Thermal Overload Protection. ·Internal Short Circuit Current Limiting. ·Output Current in Excess of 1A. ·Satisfies IEC-65 Specification. (International Electronical Commission). ·Package is DPAK, TO-220IS ·Suitable for MLCC, Tantalum and Low ESR Electrolytic Capacitors. ·Suffix U : Qualified to AEC-Q100(Grade 0) : Automotive and standard product are electrically and thermally the same, except where specified. ex) KIA78**AF-RTF/PU. LINE-UP ITEM OUTPUT VOLTAGE (Typ.) KIA7805AF/API 5 KIA7806AF/API 6 KIA7807AF/API 7 KIA7808AF/API 8 KIA7809AF/API 9 KIA7810AF/API 10 KIA7812AF/API 12 KIA7815AF/API 15 KIA7818AF/API 18 KIA7820AF/API 20 KIA7824AF/API 24 UNIT AF : DPAK API : TO-220IS MAXIMUM RATINGS (Ta=25℃) CHARACTERISTIC SYMBOL KIA7805～ Input Voltage KIA7815 KIA7818～ RATING UNIT 35 VIN V 40 KIA7824 Power Dissipation-1 AF (No Heatsink) API Power Dissipation-2 AF (Infinite Heatsink) API W 2.0 12.0 PD2 Operating Junction Temperature Storage Temperature 2015. 5. 13 1.3 PD1 Revision No : 8 W 20.8 Tj -40～150 ℃ Tstg -55～150 ℃ 1/20 KIA7805AF/API~KIA7824AF/API EQUIVALENT CIRCUIT 2015. 5. 13 Revision No : 8 2/20 KIA7805AF/API~KIA7824AF/API KIA7805AF/API ELECTRICAL CHARACTERISTICS (VIN=10V, IOUT=500mA, 0℃≦Tj≦125℃) CHARACTERISTIC Output Voltage SYMBOL VOUT TEST TEST CONDITION CIRCUIT Fig. 1 Tj=25℃, IOUT=100mA 7.0V≦VIN≦25V Input Regulation Load Regulation Reg line Reg load Fig. 1 Fig. 1 MIN. TYP. MAX. UNIT 4.8 5.0 5.2 V - 3 100 Tj=25℃ mV 8.0V≦VIN≦12V - 1 50 5mA≦IOUT≦1.4A - 15 100 Tj=25℃ mV 250mA≦IOUT≦750mA 7.0V≦VIN≦20V - 5 50 4.75 - 5.25 V VOUT Fig. 1 IB Fig. 1 Tj=25℃, IOUT=5mA - 4.2 8.0 mA Quiescent Current Change ΔIB Fig. 1 7.0V≦VIN≦25V - - 1.3 mA Output Noise Voltage VNO Fig. 2 - 50 - μVrms Ripple Rejection Ratio RR Fig. 3 62 78 - dB Dropout Voltage VD Fig. 1 IOUT=1.0A, Tj=25℃ - 2.0 - V Short Circuit Current Limit ISC Fig. 1 Tj=25℃ - 1.6 - A TCVO Fig. 1 IOUT=5mA, 0℃≦Tj≦125℃ - -0.6 - mV/℃ Output Voltage Quiescent Current Average Temperature Coefficient of Output Voltage 2015. 5. 13 Revision No : 8 5.0mA≦IOUT≦1.0A, Po≦15W Ta=25℃, 10Hz≦f≦100kHz IOUT=50mA f=120Hz, 8.0V≦VIN≦18V, IOUT=50mA, Tj=25℃ 3/20 KIA7805AF/API~KIA7824AF/API KIA7806AF/API ELECTRICAL CHARACTERISTICS (VIN=11V, IOUT=500mA, 0℃≦Tj≦125℃) CHARACTERISTIC Output Voltage SYMBOL VOUT TEST TEST CONDITION CIRCUIT Fig. 1 Tj=25℃, IOUT=100mA 8.0V≦VIN≦25V Input Regulation Load Regulation Reg line Reg load Fig. 1 Fig. 1 MIN. TYP. MAX. UNIT 5.75 6.0 6.25 V - 4 120 Tj=25℃ mV 9V≦VIN≦13V - 2 60 5mA≦IOUT≦1.4A - 15 120 Tj=25℃ mV 250mA≦IOUT≦750mA 8V≦VIN≦21V - 5 60 5.7 - 6.3 V VOUT Fig. 1 IB Fig. 1 Tj=25℃, IOUT=5mA - 4.3 8.0 mA Quiescent Current Change ΔIB Fig. 1 8V≦VIN≦25V - - 1.3 mA Output Noise Voltage VNO Fig. 2 - 55 - μVrms Ripple Rejection Ratio RR Fig. 3 61 77 - dB Dropout Voltage VD Fig. 1 IOUT=1.0A, Tj=25℃ - 2.0 - V Short Circuit Current Limit ISC Fig. 1 Tj=25℃ - 1.5 - A TCVO Fig. 1 IOUT=5mA, 0℃≦Tj≦125℃ - -0.7 - mV/℃ Output Voltage Quiescent Current Average Temperature Coefficient of Output Voltage 2015. 5. 13 Revision No : 8 5.0mA≦IOUT≦1.0A, Po≦15W Ta=25℃, 10Hz≦f≦100kHz IOUT=50mA f=120Hz, 9V≦VIN≦19V, IOUT=50mA, Tj=25℃ 4/20 KIA7805AF/API~KIA7824AF/API KIA7807AF/API ELECTRICAL CHARACTERISTICS (VIN=12V, IOUT=500mA, 0℃≦Tj≦125℃) CHARACTERISTIC SYMBOL TEST TEST CONDITION CIRCUIT Output Voltage VOUT Fig. 1 Tj=25℃, IOUT=100mA Input Regulation Reg line Fig. 1 Tj=25℃ 9V≦VIN≦25V Load Regulation Reg load Fig. 1 MIN. TYP. MAX. UNIT 6.72 7.0 7.28 V - 5 140 mV 10V≦VIN≦14V - 2 70 5mA≦IOUT≦1.4A - 15 140 Tj=25℃ mV 250mA≦IOUT≦750mA 9V≦VIN≦22V - 5 70 6.65 - 7.35 V VOUT Fig. 1 IB Fig. 1 Tj=25℃, IOUT=5mA - 4.3 8.0 mA Quiescent Current Change ΔIB Fig. 1 9V≦VIN≦25V - - 1.3 mA Output Noise Voltage VNO Fig. 2 - 60 - μVrms Ripple Rejection Ratio RR Fig. 3 59 75 - dB Dropout Voltage VD Fig. 1 IOUT=1.0A, Tj=25℃ - 2.0 - V Short Circuit Current Limit ISC Fig. 1 Tj=25℃ - 1.3 - A TCVO Fig. 1 IOUT=5mA, 0℃≦Tj≦125℃ - -0.8 - mV/℃ Output Voltage Quiescent Current Average Temperature Coefficient of Output Voltage 2015. 5. 13 Revision No : 8 5.0mA≦IOUT≦1.0A, Po≦15W Ta=25℃, 10Hz≦f≦100kHz IOUT=50mA f=120Hz, 10V≦VIN≦20V, IOUT=50mA, Tj=25℃ 5/20 KIA7805AF/API~KIA7824AF/API KIA7808AF/API ELECTRICAL CHARACTERISTICS (VIN=14V, IOUT=500mA, 0℃≦Tj≦125℃) CHARACTERISTIC SYMBOL TEST TEST CONDITION CIRCUIT Output Voltage VOUT Fig. 1 Tj=25℃, IOUT=100mA Input Regulation Reg line Fig. 1 Tj=25℃ 10.5V≦VIN≦25V Load Regulation Reg load Fig. 1 MIN. TYP. MAX. UNIT 7.7 8.0 8.3 V - 6 160 mV 11V≦VIN≦17V - 2 80 5mA≦IOUT≦1.4A - 12 160 Tj=25℃ mV 250mA≦IOUT≦750mA 10.5V≦VIN≦23V - 4 80 7.6 - 8.4 V VOUT Fig. 1 IB Fig. 1 Tj=25℃, IOUT=5mA - 4.3 8.0 mA Quiescent Current Change ΔIB Fig. 1 10.5V≦VIN≦25V - - 1.0 mA Output Noise Voltage VNO Fig. 2 - 70 - μVrms Ripple Rejection Ratio RR Fig. 3 58 74 - dB Dropout Voltage VD Fig. 1 IOUT=1.0A, Tj=25℃ - 2.0 - V Short Circuit Current Limit ISC Fig. 1 Tj=25℃ - 1.1 - A TCVO Fig. 1 IOUT=5mA, 0℃≦Tj≦125℃ - -1.0 - mV/℃ Output Voltage Quiescent Current Average Temperature Coefficient of Output Voltage 2015. 5. 13 Revision No : 8 5.0mA≦IOUT≦1.0A, Po≦15W Ta=25℃, 10Hz≦f≦100kHz IOUT=50mA f=120Hz, 11.5V≦VIN≦21.5V, IOUT=50mA, Tj=25℃ 6/20 KIA7805AF/API~KIA7824AF/API KIA7809AF/API ELECTRICAL CHARACTERISTICS (VIN=15V, IOUT=500mA, 0℃≦Tj≦125℃) CHARACTERISTIC SYMBOL TEST TEST CONDITION CIRCUIT Output Voltage VOUT Fig. 1 Tj=25℃, IOUT=100mA Input Regulation Reg line Fig. 1 Tj=25℃ 11.5V≦VIN≦26V Load Regulation Reg load Fig. 1 MIN. TYP. MAX. UNIT 8.64 9.0 9.36 V - 7.0 180 mV 13V≦VIN≦19V - 2.5 90 5mA≦IOUT≦1.4A - 12 180 Tj=25℃ mV 250mA≦IOUT≦750mA 11.5V≦VIN≦26V - 4.0 90 8.55 - 9.45 V VOUT Fig. 1 IB Fig. 1 Tj=25℃, IOUT=5mA - 4.3 8.0 mA Quiescent Current Change ΔIB Fig. 1 11.5V≦VIN≦26V - - 1.0 mA Output Noise Voltage VNO Fig. 2 - 75 - μVrms Ripple Rejection Ratio RR Fig. 3 56 72 - dB Dropout Voltage VD Fig. 1 IOUT=1.0A, Tj=25℃ - 2.0 - V Short Circuit Current Limit ISC Fig. 1 Tj=25℃ - 1.0 - A TCVO Fig. 1 IOUT=5mA, 0℃≦Tj≦125℃ - -1.1 - mV/℃ Output Voltage Quiescent Current Average Temperature Coefficient of Output Voltage 2015. 5. 13 Revision No : 8 5.0mA≦IOUT≦1.0A, Po≦15W Ta=25℃, 10Hz≦f≦100kHz IOUT=50mA f=120Hz, 12.5V≦VIN≦22.5V, IOUT=50mA, Tj=25℃ 7/20 KIA7805AF/API~KIA7824AF/API KIA7810AF/API ELECTRICAL CHARACTERISTICS (VIN=16V, IOUT=500mA, 0℃≦Tj≦125℃) CHARACTERISTIC SYMBOL TEST TEST CONDITION CIRCUIT Output Voltage VOUT Fig. 1 Tj=25℃, IOUT=100mA Input Regulation Reg line Fig. 1 Tj=25℃ 12.5V≦VIN≦27V Load Regulation Reg load Fig. 1 MIN. TYP. MAX. UNIT 9.6 10.0 10.4 V - 8 200 mV 14V≦VIN≦20V - 2.5 100 5mA≦IOUT≦1.4A - 12 200 Tj=25℃ mV 250mA≦IOUT≦750mA 12.5V≦VIN≦25V - 4 100 9.5 - 10.5 V VOUT Fig. 1 IB Fig. 1 Tj=25℃, IOUT=5mA - 4.3 8.0 mA Quiescent Current Change ΔIB Fig. 1 12.5V≦VIN≦27V - - 1.0 mA Output Noise Voltage VNO Fig. 2 - 80 - μVrms Ripple Rejection Ratio RR Fig. 3 55 72 - dB Dropout Voltage VD Fig. 1 IOUT=1.0A, Tj=25℃ - 2.0 - V Short Circuit Current Limit ISC Fig. 1 Tj=25℃ - 0.9 - A TCVO Fig. 1 IOUT=5mA, 0℃≦Tj≦125℃ - -1.3 - mV/℃ Output Voltage Quiescent Current Average Temperature Coefficient of Output Voltage 2015. 5. 13 Revision No : 8 5.0mA≦IOUT≦1.0A, Po≦15W Ta=25℃, 10Hz≦f≦100kHz IOUT=50mA f=120Hz, 13.5V≦VIN≦23.5V, IOUT=50mA, Tj=25℃ 8/20 KIA7805AF/API~KIA7824AF/API KIA7812AF/API ELECTRICAL CHARACTERISTICS (VIN=19V, IOUT=500mA, 0℃≦Tj≦125℃) CHARACTERISTIC SYMBOL TEST TEST CONDITION CIRCUIT Output Voltage VOUT Fig. 1 Tj=25℃, IOUT=100mA Input Regulation Reg line Fig. 1 Tj=25℃ 14.5V≦VIN≦30V Load Regulation Reg load Fig. 1 MIN. TYP. MAX. UNIT 11.5 12.0 12.5 V - 10 240 mV 16V≦VIN≦22V - 3 120 5mA≦IOUT≦1.4A - 12 240 Tj=25℃ mV 250mA≦IOUT≦750mA 14.5V≦VIN≦27V - 4 120 11.4 - 12.6 V VOUT Fig. 1 IB Fig. 1 Tj=25℃, IOUT=5mA - 4.3 8.0 mA Quiescent Current Change ΔIB Fig. 1 14.5V≦VIN≦30V - - 1.0 mA Output Noise Voltage VNO Fig. 2 - 90 - μVrms Ripple Rejection Ratio RR Fig. 3 55 71 - dB Dropout Voltage VD Fig. 1 IOUT=1.0A, Tj=25℃ - 2.0 - V Short Circuit Current Limit ISC Fig. 1 Tj=25℃ - 0.7 - A TCVO Fig. 1 IOUT=5mA, 0℃≦Tj≦125℃ - -1.6 - mV/℃ Output Voltage Quiescent Current Average Temperature Coefficient of Output Voltage 2015. 5. 13 Revision No : 8 5.0mA≦IOUT≦1.0A, Po≦15W Ta=25℃, 10Hz≦f≦100kHz IOUT=50mA f=120Hz, 15V≦VIN≦25V, IOUT=50mA, Tj=25℃ 9/20 KIA7805AF/API~KIA7824AF/API KIA7815AF/API ELECTRICAL CHARACTERISTICS (VIN=23V, IOUT=500mA, 0℃≦Tj≦125℃) CHARACTERISTIC SYMBOL TEST TEST CONDITION CIRCUIT Output Voltage VOUT Fig. 1 Tj=25℃, IOUT=100mA Input Regulation Reg line Fig. 1 Tj=25℃ 17.5V≦VIN≦30V Load Regulation Reg load Fig. 1 MIN. TYP. MAX. UNIT 14.4 15.0 15.6 V - 11 300 mV 20V≦VIN≦26V - 3 150 5mA≦IOUT≦1.4A - 12 300 Tj=25℃ mV 250mA≦IOUT≦750mA 17.5V≦VIN≦30V - 4 150 14.25 - 15.75 V VOUT Fig. 1 IB Fig. 1 Tj=25℃, IOUT=5mA - 4.4 8.0 mA Quiescent Current Change ΔIB Fig. 1 17.5V≦VIN≦30V - - 1.0 mA Output Noise Voltage VNO Fig. 2 - 110 - μVrms Ripple Rejection Ratio RR Fig. 3 54 70 - dB Dropout Voltage VD Fig. 1 IOUT=1.0A, Tj=25℃ - 2.0 - V Short Circuit Current Limit ISC Fig. 1 Tj=25℃ - 0.5 - A TCVO Fig. 1 IOUT=5mA, 0℃≦Tj≦125℃ - -2.0 - mV/℃ Output Voltage Quiescent Current Average Temperature Coefficient of Output Voltage 2015. 5. 13 Revision No : 8 5.0mA≦IOUT≦1.0A, Po≦15W Ta=25℃, 10Hz≦f≦100kHz IOUT=50mA f=120Hz, 18.5V≦VIN≦28.5V, IOUT=50mA, Tj=25℃ 10/20 KIA7805AF/API~KIA7824AF/API KIA7818AF/API ELECTRICAL CHARACTERISTICS (VIN=27V, IOUT=500mA, 0℃≦Tj≦125℃) CHARACTERISTIC SYMBOL TEST TEST CONDITION CIRCUIT Output Voltage VOUT Fig. 1 Tj=25℃, IOUT=100mA Input Regulation Reg line Fig. 1 Tj=25℃ 21V≦VIN≦33V Load Regulation Reg load Fig. 1 MIN. TYP. MAX. UNIT 17.3 18.0 18.7 V - 13 360 mV 24V≦VIN≦30V - 4 180 5mA≦IOUT≦1.4A - 12 360 Tj=25℃ mV 250mA≦IOUT≦750mA 21V≦VIN≦33V - 4 180 17.1 - 18.9 V VOUT Fig. 1 IB Fig. 1 Tj=25℃, IOUT=5mA - 4.5 8.0 mA Quiescent Current Change ΔIB Fig. 1 21V≦VIN≦33V - - 1.0 mA Output Noise Voltage VNO Fig. 2 - 125 - μVrms Ripple Rejection Ratio RR Fig. 3 52 68 - dB Dropout Voltage VD Fig. 1 IOUT=1.0A, Tj=25℃ - 2.0 - V Short Circuit Current Limit ISC Fig. 1 Tj=25℃ - 0.4 - A TCVO Fig. 1 IOUT=5mA, 0℃≦Tj≦125℃ - -2.5 - mV/℃ Output Voltage Quiescent Current Average Temperature Coefficient of Output Voltage 2015. 5. 13 Revision No : 8 5.0mA≦IOUT≦1.0A, Po≦15W Ta=25℃, 10Hz≦f≦100kHz IOUT=50mA f=120Hz, 22V≦VIN≦32V, IOUT=50mA, Tj=25℃ 11/20 KIA7805AF/API~KIA7824AF/API KIA7820AF/API ELECTRICAL CHARACTERISTICS (VIN=29V, IOUT=500mA, 0℃≦Tj≦125℃) CHARACTERISTIC SYMBOL TEST TEST CONDITION CIRCUIT Output Voltage VOUT Fig. 1 Tj=25℃, IOUT=100mA Input Regulation Reg line Fig. 1 Tj=25℃ 23V≦VIN≦35V Load Regulation Reg load Fig. 1 MIN. TYP. MAX. UNIT 19.2 20.0 20.8 V - 15 400 mV 26V≦VIN≦32V - 5 200 5mA≦IOUT≦1.4A - 12 400 Tj=25℃ mV 250mA≦IOUT≦750mA 23V≦VIN≦35V - 4 200 19.0 - 21.0 V VOUT Fig. 1 IB Fig. 1 Tj=25℃, IOUT=5mA - 4.6 8.0 mA Quiescent Current Change ΔIB Fig. 1 23V≦VIN≦35V - - 1.0 mA Output Noise Voltage VNO Fig. 2 - 135 - μVrms Ripple Rejection Ratio RR Fig. 3 50 66 - dB Dropout Voltage VD Fig. 1 IOUT=1.0A, Tj=25℃ - 2.0 - V Short Circuit Current Limit ISC Fig. 1 Tj=25℃ - 0.4 - A TCVO Fig. 1 IOUT=5mA, 0℃≦Tj≦125℃ - -3.0 - mV/℃ Output Voltage Quiescent Current Average Temperature Coefficient of Output Voltage 2015. 5. 13 Revision No : 8 5.0mA≦IOUT≦1.0A, Po≦15W Ta=25℃, 10Hz≦f≦100kHz IOUT=50mA f=120Hz, 24V≦VIN≦34V, IOUT=50mA, Tj=25℃ 12/20 KIA7805AF/API~KIA7824AF/API KIA7824AF/API ELECTRICAL CHARACTERISTICS (VIN=33V, IOUT=500mA, 0℃≦Tj≦125℃) CHARACTERISTIC SYMBOL TEST TEST CONDITION CIRCUIT Output Voltage VOUT Fig. 1 Tj=25℃, IOUT=100mA Input Regulation Reg line Fig. 1 Tj=25℃ 27V≦VIN≦38V Load Regulation Reg load Fig. 1 MIN. TYP. MAX. UNIT 23.0 24.0 25.0 V - 18 480 mV 30V≦VIN≦36V - 6 240 5mA≦IOUT≦1.4A - 12 480 Tj=25℃ mV 250mA≦IOUT≦750mA 27V≦VIN≦38V - 4 240 22.8 - 25.2 V VOUT Fig. 1 IB Fig. 1 Tj=25℃, IOUT=5mA - 4.6 8.0 mA Quiescent Current Change ΔIB Fig. 1 27V≦VIN≦38V - - 1.0 mA Output Noise Voltage VNO Fig. 2 - 150 - μVrms Ripple Rejection Ratio RR Fig. 3 50 66 - dB Dropout Voltage VD Fig. 1 IOUT=1.0A, Tj=25℃ - 2.0 - V Short Circuit Current Limit ISC Fig. 1 Tj=25℃ - 0.3 - A TCVO Fig. 1 IOUT=5mA, 0℃≦Tj≦125℃ - -3.5 - mV/℃ Output Voltage Quiescent Current Average Temperature Coefficient of Output Voltage 2015. 5. 13 Revision No : 8 5.0mA≦IOUT≦1.0A, Po≦15W Ta=25℃, 10Hz≦f≦100kHz IOUT=50mA f=120Hz, 28V≦VIN≦38V, IOUT=50mA, Tj=25℃ 13/20 KIA7805AF/API~KIA7824AF/API 2015. 5. 13 Revision No : 8 14/20 KIA7805AF/API~KIA7824AF/API 2015. 5. 13 Revision No : 8 15/20 KIA7805AF/API~KIA7824AF/API (2) CURRENT BOOST REGULATOR PRECAUTIONS ON APPLICATION (1) In regard to GND, be careful not to apply a negative voltage to the input/output terminal. Further, special care is necessary in case of a voltage boost application. (2) When a surge voltage exceeding maximum rating is applied to the input terminal or when a voltage in excess of the input terminal voltage is applied to the output terminal, the circuit may be destroyed. Specially, in the latter case, great care is necessary Further, if the input terminal shorts to GND in a state of normal operation, the output terminal voltage becomes higher than the input voltage (GND potential), and the electric charge of a chemical capacitor connected to the output terminal flows into the input side, which may cause the destruction of circuit. In these cases, take such steps as a zener diode and a general silicon diode are connected to the circuit, as shown in the following figure. (3) When the input voltage is too high, the power dissipation of three terminal regulator increase because of series regulator, so that the junction temperature rises. In such a case, it is recommended to reduce the power dissipation by inserting the power limiting resistor RSD in the input terminal, and to reduce the junction temperature as a result. 2015. 5. 13 Revision No : 8 16/20 KIA7805AF/API~KIA7824AF/API The power dissipation PD of IC is expressed in the following equation. PD = (VIN’-VOUT)·IOUT + VIN’·IB If VIN’ is reduced below the lowest voltage necessary for the IC, the parasitic oscillation will be caused according to circumstances. In determining the resistance value of RSD, design with margin should be made by making reference to the following equation. RSD < VIN - VIN’ IOUT + IB (4) Connect the input terminal and GND, and the output terminal and GND, by capacitor respectively. The capacitances should be determined experimentally because they depend on printed patterns. In particular, adequate investigation should be made so that there is no problem even at time of high or low temperature. (5) Installation of IC for power supply For obtaining high reliability on the heat sink design of the regulator IC, it is generally required to derate more than 20% of maximum junction temperature (Tj MAX.) Further, full consideration should be given to the installation of IC to the heat sink. (a) Heat sink design The thermal resistance of IC itself is required from the viewpoint of the design of elements, but the thermal resistance from the IC package to the open air varies with the contact thermal resistance. Table 1 shows how much the value of the contact thermal resistance (θC +θS) is changed by insulating sheet (mica) and heat sink grease. TABLE 1. UNIT:℃/W PACKAGE MODEL NO. TORQUE TO-220IS KIA78xxAPI 6kg·cm MICA θC +θS Not Provided 0.3～0.5(1.5～2.0) Provided 2.0～2.5(4.0～6.0) The figures given in parentheses denote the values at time of no grease. The package of regulator IC serves as GND, therefore, usually use the value at time of "no mica" (b) Silicon grease When a circuit not exceeding maximum rating is designed, it is to be desired that the grease should be used if possible. If it is required that the contact thermal resistance is reduced from the view-point of the circuit design, It is recommended that the following methods be adopted. A: Use Thercon (Fuji High Polymer Kogyo K.K) B: Use SC101 (Torei Silicon) or G-640 (GE), if grease is used. (c) Torque When installing IC on a heat sink or the like, tighten the IC with the torque of less than the rated value. If it is tightened with the torque in excess of the rated value, sometimes the internal elements of the IC are adversely affected. Therefore, great care should be given to the installing operation. Further, if polycarbonate screws are used, the torque causes a change with the passage of time, which may lessen the effect of radiation. 2015. 5. 13 Revision No : 8 17/20 KIA7805AF/API~KIA7824AF/API (6) IEC (International Electronical Commission)-65 Specification. (a) IEC (International Electronical Commission)-65 is the standard, parts testing method, machinery and tolls (used in connecting main power directly and indirectly) Which are used at home and general building. The purpose of the above standard is not to breaking out the risk which is related to an electric shock, a heating, a fire and the damage of surrounding parts in the case of normal or abnormal operating. (b) In case temperature is limited by temperature overheating prevention device, fuse or the operation of fuse resistor One must calculate the temperature of PCB substrate in 2 minute. ΔT≤110℃ regulated ΔT=T(The PCB substrate temperature in 2 minute) -Ta(Ambient temperature) (c) Graph As the territory of the deviant line appear by the heat, as the area is wider, T(The PCB substrate temperature in 2 minute) is becoming high. 2015. 5. 13 Revision No : 8 18/20 KIA7805AF/API~KIA7824AF/API 2015. 5. 13 Revision No : 8 19/20 KIA7805AF/API~KIA7824AF/API 2015. 5. 13 Revision No : 8 20/20