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FAN65005A Datasheet(PDF) 8 Page - ON Semiconductor |
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FAN65005A Datasheet(HTML) 8 Page - ON Semiconductor |
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8 / 26 page  FAN65005A www.onsemi.com 8 Table 5. ELECTRICAL CHARACTERISTICS (continued) (Typical application circuit shown in Figure 1 is used. Unless otherwise noted, VIN = VHVBIAS = 48 V, VOUT = 5 V, VPVCC = VCC = 5 V, −40 °C < TJ = TA < +125°C. TA = TJ = +25°C for typical values) Symbol Unit Max Typ Min Conditions Parameter RAMP AND PWM MODULATOR kPWM PWM Modulator Gain, VIN/DVRAMP VIN = VHVBIAS = 4.5 to 65 V − 25 − V/V TON_MIN PWM Minimum ON time − 150 200 ns TOFF_MIN PWM Minimum OFF time − 150 200 ERROR AMPLIFIER GBW Unit Gain Bandwidth − 10 − MHz G DC Gain − 80 − dB IFB FB Bias Current VFB = 0.6 V −50 5 50 nA ICOMP_SOURCE COMP Source Current 2 7 − mA ICOMP_SINK COMP Sink Current 2 8.5 − mA SOFT START tSS_DL Enable High to Soft Start Ramp Start Delay − 1 3 ms ISS Charging Current to SS Capacitor 4.3 5 5.9 mA BOOT VBT_SWITCH Bootstrap Switch Voltage Drop BOOT Current, IBOOT = 50 mA − 0.1 − V VBT_UVLO_TH BOOT UVLO Voltage with re- gard to PH BOOT Falling − 3.20 − VBT_UVLO_HYS BOOT UVLO Hysteresis with regard to PH BOOT Rising − 0.35 − CURRENT PROTECTION ILIM_S Current Source Creating Current Limit Reference Voltage on R_ILIM − 8.5 − mA kILIM_HS High-side MOSFET current limit scale factor (ILIM_HS = kILIM_HS × RILIM) − 59.5 − mA/W kILIM_LS Low-side MOSFET current limit scale factor (ILIM_LS = kILIM_LS × RILIM) − 19.6 − nCYCLE_OCP Number of Switching Cycle(s) before Entering Hiccup Mode ILIM_HS ≤ ISEN_PEAK < 130% ILIM_HS − 1024 − Cycle nCYCLE_SCP ISEN_PEAK ≥ 130%ILIM_HS − 1 − POWER GOOD VFB_NPG_TH FB Pin Voltage for PGOOD to Be De-asserted When Down from Regulation FB Falling 88 92 96 %VREF FB Pin Voltage for PGOOD to Be De-asserted When up into OVP1 FB Rising 110 115 120 VFB_PG_TH FB Pin Voltage for PGOOD to Be Asserted When Down from OVP1 FB Falling − 110 − FB Pin Voltage for PGOOD to Be Asserted When up into Regulation FB Rising − 94 − |
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