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FAN6921AMRMY Folha de dados(PDF) 3 Page - Fairchild Semiconductor |
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FAN6921AMRMY Folha de dados(HTML) 3 Page - Fairchild Semiconductor |
3 / 24 page © 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN6921AMR • Rev. 1.0.2 3 Internal Block Diagram Figure 2. Functional Block Diagram CSPWM 2 16 7 3 4 11 5 10 9 12 13 1 8 6 14 0.65V 0.7V 2.5V INV 2.35V COMP 0.45V CSPFC Blanking Circuit 0.82V Sawtooth Generator / tON -MAX THD Optimizer Multi-Vector Amp. ZCD OPFC DRV DRV GND 10V IZCD 2.1V/1.75V Inhibit Timer PFC Zero-Current Detector VDD Internal Bias Latched OVP UVP Disable Function 0.2V Restarter PFC Current Limit 15.5V Latched 17.5V OPWM DET FB RT VIN HV RANGE IHV Debounce 100ms 2.1V/2. 45V PFC RANGE Control 1V/1.3V Latched 2.75V 2.65V 2.75V RANGE 2.9V RANGE 4.2V 2R R Debounce Time 100µA Soft-Start 10ms PWM Current Limit IDET Internal OTP Latched 110µs 10ms 0.8V 0.5V IRT Prog. OTP / Externally Triggering Blanking Circuit IDET 5V Latched RT Pin Prog. OTP Brownout Q Q SET CLR S R Q Q SET CLR S R VB & Clamp VCOMP to 1.6V FB OLP Timer 50ms VB Over-Power Compensation VCTL -PFC-ON / OFF Starter 2. 25ms 28µs 15 NC 27.5V OVP 1.2V VINV Startup S/H tOFF -MIN (8µs/ 37µs/2.25ms) DET OVP 2.5V tOFF Blanking (4µs) V DET Latched Valley Detector I DET 1 st Valley tOFF -MIN +9µs Debounce 100ms Brownout Comparator Latched Protection Brownout Protection RT Pin Externally Triggering DET Pin OVP VDD Pin OVP Internal OTP Debounce 2.5ms / 500ms Debounce 70µs PFC & Multi-Vector Amp. ON / OFF Auto-Recovery Protection Two-Step UVLO 18V/10V/7.5V ZFB |
Nº de peça semelhante - FAN6921AMRMY |
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Descrição semelhante - FAN6921AMRMY |
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