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IR51HD320 Datasheet(PDF) 2 Page - International Rectifier |
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IR51HD320 Datasheet(HTML) 2 Page - International Rectifier |
2 / 6 page IR51HD320 Absolute Maximum Ratings Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltages referenced to COM, all currents are defined positive into any lead. The Thermal Resistance and Power Dissipation ratings are measured under board mounted and still air conditions. Parameter Symbol Definition Min. Max. Units VIN High Voltage Supply -0.3 400 VB High Side Floating Supply Absolute Voltage -0.3 425 VO Half-Bridge Output Voltage -0.3 VIN + 0.3 V VRT RT Voltage -0.3 VCC + 0.3 VCT CT Voltage -0.3 VCC + 0.3 ICC Supply Current (Note 1) --- 25 mA IRT RT Output Current -5 5 dv/dt Peak Diode Recovery dv/dt --- 4.0 V/ns PD Package Power Dissipation @ TA ≤ +25ºC --- 2.00 W RθJA Thermal Resistance, Junction to Ambient --- 60 ºC/W TJ Junction Temperature -55 150 TS Storage Temperature -55 150 ºC TL Lead Temperature (Soldering, 10 seconds) --- 300 Recommended Operating Conditions The Input/Output logic timing diagram is shown in Figure 1. For proper operation the device should be used within the recommended conditions. Parameter Symbol Definition Min. Max. Units VB High Side Floating Supply Absolute Voltage VO + 10 VO + VCLAMP VIN High Voltage Supply --- 400 V VO Half-Bridge Output Voltage -5 400 ID Continuous Drain Current (TA = 25ºC) --- 0.9 A (TA = 85ºC) --- 0.6 ICC Supply Current (Note 1) --- 5mA TA Ambient Temperature -40 125 ºC Note 1: Because of the IR51HD320's application specificity toward off-line supply systems, this IC contains a zener clamp structure between the chip VCC and COM which has a nominal breakdown voltage of 15.6V. Therefore, the IC supply voltage is normally derived by current feeding the VCC lead (typically by means of a high value resistor connected between the chip VCC and the rectified line voltage and a local decoupling capacitor from VCC to COM) and allowing the internal zener clamp circuit to determine the nominal supply voltage. Therefore, this circuit should not be driven by a DC, low impedance power source of greater than VCLAMP. Next Data Sheet Index Previous Datasheet To Order |
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