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AP31261KTRG1 Datasheet(PDF) 5 Page - Diodes Incorporated |
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AP31261KTRG1 Datasheet(HTML) 5 Page - Diodes Incorporated |
5 / 13 page AP31261 Document number: DS37514 Rev. 2 - 2 5 of 13 www.diodes.com May 2015 © Diodes Incorporated AP31261 A Product Line of Diodes Incorporated Electrical Characteristics (@TA = +25°C, VCC = 16V, unless otherwise specified.) Symbol Parameter Conditions Min Typ Max Unit Supply Voltage (VCC Pin) ISTARTUP Startup Current – – 1 10 μA ICC Operating Supply Current VFB=0V, CL=1nF 0.5 0.7 1 mA VFB=3V, CL=0nF 0.6 1.2 2.0 – UVLO (on) – 14.5 15.8 16.5 V – VCC Maintain – 8.6 9.1 9.6 V – UVLO (off) – 7.1 7.6 8.1 V – VCC OVP – 27 28.5 30 V – VCC Clamp ICC=5mA 31 34 – V PWM Section/Oscillator Section – Maximum Duty Cycle – 70 75 80 % – Oscillation Frequency – 60 65 70 kHz – Green Mode Frequency – 20 – 30 kHz – Frequency Temperature Stability -20°C to +125°C (Note 5) – – 5 % – Frequency Voltage Stability VCC=12V to 30V – – 3 % – Frequency Dithering – ±4 ±6 ±8 % Current Sense Section (SENSE Pin) VCS Maximum SENSE Voltage VFB=4.5V 0.9 0.95 1 V – FOCP Voltage – 1.5 1.7 1.9 V – SENSE Shorted Protection Threshold(Note 5) – – 50 – mV – LEB Time of SENSE – 150 250 350 ns – Delay to Output (Note 5) – – 100 – ns – Soft-start Time – 3 5 8 ms Feedback Input Section (FB Pin) – The Ratio of Input Voltage to Current Sense Voltage – 2.5 3 3.5 V/V – Input Impedance – 12 15 18 kΩ – Source Current VFB=0V -0.2 -0.27 -0.34 mA – Green Mode Threshold – – 2.1 – V – Input Voltage for Zero Duty – 1.3 1.55 1.8 V Output Section (GATE Pin) – Output Low Level IO=20mA, VCC=12V – – 1 V – Output High Level IO=20mA, VCC=12V 8 – – V – Output Clamping Voltage – 11 13 15 V – Rising Time CL=1nF, VCC=13V – 150 250 ns – Falling Time CL=1nF, VCC=13V – 50 100 ns |
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