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USR3651S Datasheet(PDF) 5 Page - Unisonic Technologies |
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USR3651S Datasheet(HTML) 5 Page - Unisonic Technologies |
5 / 9 page USR3651S Preliminary CMOS IC UNISONICTECHNOLOGIESCO.,LTD 5 of 9 www.unisonic.com.tw QW-R103-085.b ELECTRICAL CHARACTERISTICS (TA=25°C, VDD=15V, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT STARTUP SECTION Startup Voltage Vst VDD<VTH(ON) 25 V Startup Current Ist VDD<VTH(ON) 700 uA SUPPLY SECTION Turn-on Threshold Voltage VTH(ON) 13.5 14.5 16 V Turn-off Threshold Voltage VTH(OFF) 8.2 9 10.5 V VDD OVP Protection VDD_OVP 28 V Operating Current IDD-OP 1.6 2 mA Green-Mode Operating Current IDD-GREEN 1.3 mA OSCILLATOR SECTION Maximum Frequency fOSC 55 65 75 kHz Minimum Frequency at CCM fOSC-CM-MIN 17 kHz Minimum Frequency at No-load fOSC-N-MIN 300 Hz Frequency Hopping Range △ f/freq ±5.0 % Frequency Hopping Period tFHR 3 ms INV SECTION Reference Voltage for EA VVR 1.97 2.00 2.03 V Reference Voltage for CCM VVR_CCM 0.5 V Max. Cable Compensation Current ICABLE_MAX 37 uA CURRENT SENSE SECTION Current Sense Threshold Voltage VCS 870 900 930 mV OCP Propagation Delay tD_OC 90 200 nS Leading Edge Blank Time tLEB 900 nS Soft Start Time tSS 10 mS POWER MOSFET SECTION MOSFET DS Breakdown Voltage BVDSS 600 V On Resistance RDS(ON) 11 15 Ω OTP SECTION Threshold Temperature of OTP (Note) TOTP +140 °C Note: When the over-temperature protection is activated, the power system enters auto restart mode and output is disabled. |
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