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UPS3702L-D08-T Datasheet(PDF) 3 Page - Unisonic Technologies |
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UPS3702L-D08-T Datasheet(HTML) 3 Page - Unisonic Technologies |
3 / 9 page UPS3702 Preliminary LINEAR INTEGRATED CIRCUIT UNISONICTECHNOLOGIESCO.,LTD 3 of 9 www.unisonic.com.tw QW-R119-022.b ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC 30 V Input Voltage to FB Pin VFB -0.3~6.5 V Junction Temperature TJ +150 °C Operating Temperature TOPR -40~+125 °C Storage Temperature TSTG -50~+150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. OPERATING RANGE PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC 7~23 V ELECTRICAL CHARACTERISTICS (TA=25°C, VCC=15V, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT SUPPLY SECTION Start Up Current IST VCC = VTHD(ON)-1V 5 15 μA Supply Current with switch IOP VFB=4V GATE Without CLOAD 2 3 mA UNDER-VOLTAGE LOCKOUT SECTION Start Threshold Voltage VTHD(ON) 12 13.5 14 V Min. Operating Voltage VCC(MIN) 7 8 9 V CONTROL SECTION Feedback Source Current IFB VFB=0 2 mA VFB Open Level VFBMAX 5.0 V Burst-Mode Out FB Voltage VFB(OUT) VCS =0 1.2 V Reduce-Frequency end FB Voltage VFB(END) VCS =0 2.4 V Burst-Mode Enter FB Voltage VFB(IN) VCS =0 1.0 V Switching frequency Normal initial F(SW) VFB=4V 69 75 81 kHz Power-Saving Before enter burst mode 20 kHz Duty Cycle DMAX VFB=4V,vCS=0 70 75 80 % Frequency Hopping △ FJ(SW) ±3 ±4.5 ±6 % Frequency Variation VS VCC Deviation FDV VCC=10~20V 5 % Frequency Variation VS Temperature Deviation FDT T=-25~105°C 5 % Soft-Start Time TSoftS 2 4 6 ms PROTECTION SECTION OVP threshold VOVP VFB=4V 23 V OLP threshold VFB(OLP) VCS=0 4.7 V Delay Time Of OLP TD-OLP 35 65 95 ms OTP threshold T(THR) 130 145 °C CURRENT LIMITING SECTION Peak Current Limitation ILIM VFB=4.4V 1.06 1.2 1.34 A Threshold Voltage For Valley ILIM-L VFB=4.4V 1.14 A |
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