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HV301 Datasheet(PDF) 20 Page - Supertex, Inc |
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HV301 Datasheet(HTML) 20 Page - Supertex, Inc |
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20 / 21 page  20 HV301/HV311 Application Information cont’d. Latched Operation For those applications that need to disable the automatic retry capability, the following circuit disables the auto retry feature. Application Circuit 17 VDD UV OV VEE SENSE GATE RAMP -48V Cload +5V HV301 / HV311 8 3 2 COM 1 GND PWRGD / PWRGD ENABLE / ENABLE DC/DC PWM CONVERTER 6 45 7 R1 487k Ω R2 6.81k Ω R3 9.76k Ω R4 12.5m Ω Q1 IRF530 2.5M Ω Note: capacitor may be needed to slow PWRGD dv/dt if oscillations are observed when V IN is close to OV. |
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