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EC3228NNFTR Datasheet(PDF) 6 Page - E-CMOS Corporation |
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EC3228NNFTR Datasheet(HTML) 6 Page - E-CMOS Corporation |
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6 / 16 page  High-Performance PWM Controller EC3228 E-CMOS Corp. (www.ecmos.com.tw) Page 6 of 16 3G15N-Rev.P002 Electrical Characteristics(Cont.) Symbol Parameter Test Conditions EC3228 Unit Min. Typ. Max. CONTROL INPUTS (CONT.) EN Leakage EN = 0V - 0.1 1.0 uA RF Setting Threshold Forced PWM Mode 1.8 - - V PFM/PWM Auto Skip Mode - - 0.5 V POWER-OK INDICATOR VPOK POK Threshold POK in from Lower (POK Goes High) 87 90 93 % POK Low Hysteresis (POK Goes Low) - 3 - % POK out from Normal (POK Goes Low) 120 125 130 % IPOK POK Leakage Current VPOK = 5V - 0.1 1.0 uA POK Sink Current VPOK = 0.5V 2.5 7.5 - mA POK Enable Delay Time EN High to POK High 1.4 2.0 2.6 ms CURRENT SENSE IOCSET IOCSET OCP Threshold IOCSET Sourcing 9 10 11 uA TCIOCSET IOCSET Temperature Coefficient On The Basis of 25°C - 4500 - ppm/ o C VROCSET Current-Limit Threshold Setting Range VOCSET-GND Voltage, Over All Temperature 0.24 - 1.6 V Over Current-Limit Comparator Offset (VOCSET-GND-VGND-PHASE) Voltage, VOCSET-GND=60mV -10 0 10 mV Zero Crossing Comparator Offset VGND-PHASE Voltage, EN=3.3V -9.5 0.5 10.5 mV PROTECTION VUV UVP Threshold 60 70 80 % UVP Hysteresis - 3 - % UVP Debounce Interval - 16 - us UVP Enable Delay EN High to UVP Workable 1.4 2 2.6 ms VOVR OVP Rising Threshold 120 125 130 % OVP Propagation Delay VFB Rising, DV=10mV - 1.5 - us TOTR OTP Rising Threshold (Note 4) - 140 - ℃ C OTP Hysteresis (Note 4) - 25 - ℃ C Note : Guaranteed by design, not production tested. |
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