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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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L4985 Arkusz danych(PDF) 8 Page - STMicroelectronics |
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L4985 Arkusz danych(HTML) 8 Page - STMicroelectronics |
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8 / 27 page  Symbol Parameter Test Condition Min. Typ. Max. Unit TDB_ACBI Brown-in debounce time First time VCC > VCC_ON 0.8 1 1.2 ms 32 40 48 ms X-CAPACITOR DISCHARGE FUNCTION VHV_MIN Peak residual voltage IHV_DIS > 5 mA 45 V IHV_DIS Discharge current VHV = 45 V 5 mA TDECT_XCAP Detection time 51 64 77 ms ERROR AMPLIFIER VREF Voltage feedback input threshold Tj = 25 °C 2.47 2.5 2.53 V 10 V < VCC < 24.5 V(1) 2.45 2.57 V IFB Input bias current VFB = 0 to 3 V -0.1 0 0.1 µA VFBCLAMP Internal clamp level IFB = 1 mA 3.0 3.3 V gm Transconductance gain VREF -150 mV < VFB < VREF +150 mV 160 200 240 µS RO Output impedance 5 MΩ ICOMP Source current VCOMP = 3 V, VFB=1.9 V 0.7 1 1.45 mA Sink current VCOMP = 3 V, VFB=3.0 V 0.7 1 1.45 mA VCOMP Upper saturation voltage ISOURCE = 0.2 mA 5.0 V Lower clamp voltage VFB = 3.0 V 0.8 0.9 DYNAMIC (D_OVP) and STATIC (S_OVP) OVERVOLTAGE PROTECTIONS VCOMP_S Burst mode threshold S_OVP (Static OVP) Voltage falling(1) 0.95 1.00 1.05 V VCOMP_R Restart threshold after S_OVP Voltage rising(1) 1 1.05 1.1 V VFB_S D_OVP disable threshold 10 V < VCC < 24.5 V 2.595 2.675 2.755 V VFB_R Restart threshold after D_OVP 10 V < VCC < 24.5 V 2.44 2.55 2.65 V DISABLE VCOMP_DIS Disable threshold Voltage falling(1) 0.65 0.7 0.75 V VCOMP_EN Enable threshold Voltage rising(1) 0.85 0.9 0.95 V ICOMP_DIS Pull-up current at disable 8 12 16 µA CURRENT SENSING ICS Leakage bias current VCS = -0.5 V 15 21 µA VCS = 0.235 V 7.5 10 14 µA VCS_OFS CS level shifter offset CS = 0 V 3 10 17 mV VCS_GAIN CS level shifter gain C = -0.5 V 0.94 0.98 1.02 V/V VCS_OCP1 1st level overcurrent threshold -510 -490 -470 mV TSS_OCP1 1st level OCP threshold ramp up time 104 130 156 ms TBLK Leading edge blanking HV > 73 V rising 120 150 180 ns HV < 45 V falling 235 310 385 ns td(H-L) Delay to output 110 ns VCS_OCP2 2nd level overcurrent threshold -0.80 -0.75 -0.70 V VCS_ZCD Zero current threshold -15 -10 -5 mV L4985 Electrical characteristics DS13769 - Rev 3 page 8/27 |
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