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FAN9611 Arkusz danych(PDF) 3 Page - Fairchild Semiconductor |
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FAN9611 Arkusz danych(HTML) 3 Page - Fairchild Semiconductor |
3 / 35 page © 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN9611 / FAN9612 • Rev. 1.0.1 3 Typical Application Diagram VOUT D2 D1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CS2 CS1 VDD DRV1 DRV2 PGND VIN OVP FB COMP SS AGND MOT 5VB ZCD2 ZCD1 L2a AC IN CIN L1a RZCD2 RZCD1 C5VB RMOT CSS RCOMP CCOMP,HF Q2 RCS1 RCS2 COUT Q1 VBIAS RFB1 RFB2 ROV1 ROV2 RIN1 RIN2 RG2 RG1 RINHYST VIN V LINE EMI Filter CCOMP,LF L1b L2b CVDD1 CVDD2 CINF Figure 3. Typical Application Diagram Block Diagram 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 ZCD1 ZCD2 5VB MOT AGND COMP FB SS OVP CS1 CS2 PGND DRV2 DRV1 VDD VIN 0.2V 5V gm 3VREF Q Q R S Q Q R S UVLO 5V BIAS 5V VDD VDD 5µA 0.195V 0.195V 1.25V IMOT A B AB 5V A 5V B PROTECTION LOGIC (Open FB, Input Protections, OVP, Latched OVP, Thermal Shutdown) INPUT VOLTAGE SENSE (Input Voltage Squarer, Input UVLO, Brownout) K1 VIN IMOT 2 K1 VIN IMOT 2 Phase Management CHANNEL 1 VALLEY DETECTOR CHANNEL 2 VALLEY DETECTOR SYNCHRONIZATION RESTART TIMERS FREQUENCY CLAMPS 2µA Figure 4. Block Diagram |
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