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WS2259DP Datasheet(PDF) 5 Page - Shenzhen Winsemi Microelectronics Co., Ltd |
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WS2259DP Datasheet(HTML) 5 Page - Shenzhen Winsemi Microelectronics Co., Ltd |
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5 / 11 page  Steady, Steady, Steady, Steady, keep keep keep keep you you you you advance advance advance advance 5/11 WS2259 WS2259 WS2259 WS2259 Electrical Electrical Electrical Electrical Characteristics Characteristics Characteristics Characteristics (TA=25℃，VCC=16V, if not otherwise noted) Supply Supply Supply Supply Voltage Voltage Voltage Voltage (VDD) (VDD) (VDD) (VDD) Parameter Symbol Test condition Min Typ Max Unit Operation voltage VDD_OP 30 V Turn on threshold Voltage UVLO_ON 6.8 7.5 8 V Turn-off threshold Voltage UVLO_OFF 13.5 14.5 15.5 V Start up current I_VDD_ST VDD=13V,RI=100K 4 10 uA Operation Current I_VDD_OP VDD=16V,RI=100K,VFB=3V GATE with 1nF to GND 1.7 2.3 mA VDD_OVP 29 V VDD Zener Clamp Voltage VDD_Clamp IVDD=10mA 31 V Feedback Feedback Feedback Feedback Input Input Input Input Section Section Section Section VFB Open Loop Voltage VFB_Open VDD=16V,FB open, 5.4 5.9 6.4 V FB Pin Short Current IFB_Short FB Shorted to GND 0.3 0.45 0.6 mA Power limiting FB Threshold VTH_PL VDD=16V, RI=100K 3.2 3.65 4.0 V Power limiting Debounce TD_PL VDD=16V,FB open,RI=100KΩ 48 60 72 ms Input Impedance ZFB_IN VDD=16V,FB=2V/3V,CS open 11.5 14.5 18 kΩ Maximum duty cycle Max_Duty VDD=16V,FB open, CS=0,RI=100KΩ 72 77 82 % Current Current Current Current Sense Sense Sense Sense Section Section Section Section Leading edge Blanking Time TLEB 330 ns OCP control delay TD_OC GATE with 1nF to GND 70 ns OCP threshold TTH_OC FB＝3.2V 0.68 0.78 0.78 V Oscillator Oscillator Oscillator Oscillator Section Section Section Section Frequency Fosc VDD=16V,RI=100K,,FB=3.2V 60 65 70 khz Jitter period For 65K 4 ms Jitter range ±5 % Burst mode frequency Fosc_BM VDD=9.5V,RI=100K, FB=1V 22 khz Frequency variation versus temp. Deviation ∆f_temp TEMP = -20 to 85℃ 5 % Frequency variation versus VDD ∆f_VDD VDD = 12 to 25V 5 % RI RI RI RI Section Section Section Section RI voltage VRI VDD=16V,RI=100KΩ,CS=1V 1.94 2 2.06 V Thermal Thermal Thermal Thermal protection protection protection protection Thermal shutdown temperature T_shutdown 150 ℃ GATE GATE GATE GATE Output Output Output Output Section Section Section Section Output voltage Low VOL VDD = 16V, Io = -20mA 0.8 V Output voltage high VOH VDD = 16V, Io = 20mA 9 V Output clamp voltage VClamp VDD = 20V 11 13 14.5 V Rising time Tr VDD = 16V, GATE with 1nF to GND 250 ns Falling time Tf VDD = 16V, GATE with 1nF to GND 75 ns |
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