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FAN6753 数据表(PDF) 6 Page - Fairchild Semiconductor |
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FAN6753 数据表(HTML) 6 Page - Fairchild Semiconductor |
6 / 12 page © 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN6753 • Rev. 1.0.3 6 Electrical Characteristics (Continued) VDD=15V and TA=25C unless otherwise noted. Symbol Parameter Conditions Min. Typ. Max. Units LATCH Section VLATCHth Latch-Off Threshold Voltage VLATCHth > 5.2V, after 100µs Latch Off 5.0 5.3 5.6 V tD-LATCH Latch-Off De-bounce Time VLATCH< VLATCHth 40 100 160 µs ILATCH Output Current from LATCH Pin 92 100 108 µA Feedback Input Section AV Input Voltage to Current-Sense Attenuation 1/4.5 1/4.0 1/3.5 V/V ZFB Input Impedance 4 7 kΩ VFB-OPEN Output High Voltage FB Pin Open 5.0 5.3 5.6 V VFB-OLP FB Open-Loop Trigger Level 4.6 4.8 5.0 V tD-OLP Delay Time of FB Pin Open-Loop Protection 50 56 62 ms VFB-N Green-Mode Entry FB Voltage 2.8 3.0 3.2 V VFB-G Green-Mode Ending FB Voltage 2.2 2.4 2.6 V IFB-ZDC Zero Duty-Cycle FB Current 1.5 mA Current-Sense Section ZSENSE Input Impedance 12 KΩ VSTHFL Current Limit Flatten Threshold Voltage Duty>40% 0.87 0.90 0.93 V VSTHVA Current Limit Valley Threshold Voltage VSTHFL–VSTHVA Duty=0% 0.30 0.34 0.38 V tPD Delay to Output 100 200 ns tLEB Leading-Edge Blanking Time 100 140 180 ns tSS Period During Soft-Startup Time Startup Time 4.3 5.0 5.7 ms GATE Section DCYMAX Maximum Duty Cycle 60 65 70 % VGATE-L Gate Low Voltage VDD=15V, IO=50mA 1.5 V VGATE-H Gate High Voltage VDD=12V, IO=50mA 8 V tr Gate Rising Time VDD=15V, CL=1nF 150 250 350 ns tf Gate Falling Time VDD=15V, CL=1nF 30 50 90 ns IGATE-SOURCE Gate Source Current VDD=15V, GATE=6V 250 mA VGATE-CLAMP Gate Output Clamping Voltage VDD=22V 18 V Over-Temperature Protection Section (OTP) TOTP Protection Junction Temperature (3) +135 °C TRestart Restart Junction Temperature (4) TOTP- 25 °C Notes: 3. When activated, the output is disabled and the latch is turned off. 4. The threshold temperature for enabling the output again and resetting the latch, after over-temperature protection has been activated. |
类似零件编号 - FAN6753_11 |
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类似说明 - FAN6753_11 |
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