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FDMF5821 数据表(PDF) 3 Page - ON Semiconductor |
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FDMF5821 数据表(HTML) 3 Page - ON Semiconductor |
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3 / 26 page ![]() © 2016 Semiconductor Components Industries, LLC www.onsemi.com FDMF5821 • Rev. 1.0 2 Application Diagram CVIN CVCC CPVCC FDMF5821 PWM ZCD# TMON EN/FAULT# PVCC VCC VIN BOOT PHASE SW AGND RVCC VIN V5V EN PWM Input VOUT LOUT OFF ON RBOOT CBOOT COUT PGND ITMON RTMON VTMON GL Figure 1. Typical Application Diagram Functional Block Diagram BOOT PVCC VIN FAULT PWM CONTROL LOGIC PWM INPUT EN/UVLO ZCD/CCM/DCM LOGIC LEVEL SHIFT THERMAL MONITOR EN/ FAULT# HDRV LDRV1 LDRV2 FAULT LATCH TMON VCC PWM PHASE SW PGND ZCD# AGND GL 1.5V VCC VCC ↓ 10uA PVCC PVCC 0.8V/2.0V 0.8V/2.0V ← ITMON POR POR RUP_PWM RDN_PWM Figure 2. Functional Block Diagram |
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