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UCS1201G-S08-R Folha de dados(PDF) 4 Page - Unisonic Technologies |
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UCS1201G-S08-R Folha de dados(HTML) 4 Page - Unisonic Technologies |
4 / 5 page UCS1201 Preliminary LINEAR INTEGRATED CIRCUIT UNISONICTECHNOLOGIESCO.,LTD 4 of 5 www.unisonic.com.tw QW-R103-066.a ELECTRICAL CHARACTERISTICS (0°C<TJ<125°C, 9.0V<VCC<20V, CGATE(H)=CGATE(L)=3.3nF, CCOMP=0.1μF, ROSC=74kΩ, unless otherwise specified.) (Note 1) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Error Amplifier VFB Bias Current IFB VFB=0V 0.4 2.0 μA COMP Source Current ISOURCE COMP=1.5V, VFB=0.8V 15 30 60 μA COMP Sink Current ISINK COMP=1.5V, VFB=1.2V 15 30 60 μA Reference Voltage VREF COMP=VFB 0.970 0.980 0.990 V TJ<25°C 0.965 0.980 0.995 V COMP Max Voltage VCOMP-MAXVFB=0.8V 2.4 3.1 V COMP Min Voltage VCOMP-MIN VFB=1.2V 0.1 0.2 V COMP Fault Discharge Current at UVLO ICHARGE COMP=1.2V, VCC=6.9V 0.5 1.2 mA COMP Fault Discharge Threshold to Reset UVLO VRESET 0.1 0.25 0.3 V GATE(H) and GATE(L) Rise Time tR 1.0V<GATE(L), GATE(H)<VCC-2.0V, VCC=12V 40 80 ns Fall Time tF VCC-2.0V<GATE(L), GATE(H)<1.0V, VCC=12V 40 80 ns GATE(H) to GATE(L) Delay tDH GATE(H)<2.0V, GATE(L)>2.0V 40 60 105 ns GATE(L) to GATE(H) Delay tDL GATE(L)<2.0V, GATE(H)>2.0V 40 60 105 ns Minimum Pulse Width tPULSE GATE(X)=4.0V 250 ns High Voltage (AC) VH Measure GATE(L) or GATE(H) 0.5nF<CGATE(H)=CGATE(L)<10nF, (Note 2) VCC-0.5 VCC V Low Voltage (AC) VL Measure GATE(L) or GATE(H) 0.5nF<CGATE(H)=CGATE(L)<10nF, (Note 2) 0 0.5 V PWM Comparator PWM Comparator Offset VPWM-MIN VFB=0V, Increase COMP Until GATE(H) Starts Switching 0.415 0.465 0.525 V Ramp Max Duty Cycle 80 % Artificial Ramp Duty Cycle=50%, ROSC=74kΩ 50 63 75 mV Transient Response COMP=1.5V, VFB 20mV Overdrive. (Note 2) 200 300 ns VFB Input Range (Note 3) 0 1.4 V Oscillator Switching Frequency FOSC ROSC Not Used 170 200 230 kHz FOSC ROSC=74kΩ 240 280 320 kHz General Electrical Specifications VCC Supply Current IQ COMP=0V (No Switching) 9.0 12 mA Start Threshold GATE(H) Switching, COMP Charging 8.0 8.5 9.0 V Stop Threshold GATE(H) Not Switching, COMP Discharging 7.0 7.5 8.0 V Hysteresis VHYS Start-Stop 0.75 1.0 1.25 V Notes:1.Characteristics at temperature extremes are guaranteed via correlation using quality statistical control methods. 2.Guaranteed by design. Not tested in production. |
Nº de peça semelhante - UCS1201G-S08-R |
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Descrição semelhante - UCS1201G-S08-R |
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