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VIPER0P Datasheet(PDF) 10 Page - STMicroelectronics |
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VIPER0P Datasheet(HTML) 10 Page - STMicroelectronics |
10 / 36 page Electrical and thermal ratings VIPer0P 10/36 DocID028423 Rev 2 Table 7: Controller section Symbol Parameter Test conditions Min. Typ. Max. Unit E/A VEAGND E/A ground reference voltage Referred to SGND -20 0 V VFB_REF E/A reference voltage Referred to EAGND 1.175 1.2 1.225 V VFB_DIS E/A disable voltage Referred to EAGND 150 250 350 mV IFB PULL UP Pull-up current 0.5 1 1.5 µA GM Trans conductance VCOMP = 1.5 V, VFB > VFB_REF 300 550 700 µA/V ICOMP1 Max. source current VFB = 0.5 V, VCOMP = 1.5 V 75 100 125 µA ICOMP2 Max. sink current VFB = 2 V, VCOMP = 1.5 V 75 100 125 µA RCOMP(DYN) Dynamic resistance VCOMP = 2.7 V, VFB = EAGND 55 65 75 kΩ VCOMPH Current limitation threshold Referred to SGND 2.65 3.2 3.75 V VCOMPL PFM threshold Referred to SGND 0.7 0.9 1.1 V OLP and timing IDLIM Drain current limitation TJ = 25 °C 380 400 420 mA I2f Power coefficient VIPER0PL -10% 9.6 +10% A2·kHz VIPER0PH 19.2 IDLIM_PFM Drain current limitation at light load TJ = 25 °C VCOMP = VCOMPL (1) 60 95 130 mA tOVL Overload delay time FOSC = 60 kHz (VIPER0PL) FOSC = 120 kHz (VIPER0PH) 45 50 55 ms tOVL_MAX Max. overload delay time VIPER0PL FOSC = FOSC_MIN 180 200 220 ms VIPER0PH FOSC = FOSC_MIN 360 400 440 tSS Soft-start time 8 ms tON_MIN Minimum turn-on time VCC = 9 V, VCOMP = 1 V, VFB = VFB_REF 230 350 ns tRESTART Restart time after fault 1 s ZPM VOFFth ZPM entering threshold During normal operation VCC = 7 V 0.75 1 1.25 V VOFF Operating voltage level Pin floating 4.1 4.6 V ROFF Pull-up resistor on OFF pin 32 41 50 kΩ tDEB_OFF OFF debounce time 10 16 ms |
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