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PWM Controller and Transformer Driver with Quad-Channel Isolators
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PWM Controller and Transformer
Driver with Quad-Channel Isolators
ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474 FEATURES FUNCTIONAL BLOCK DIAGRAMS Isolated PWM controller
Integrated transformer driver
Regulated adjustable output: 3.3 V to 24 V
2 W output power
70% efficiency at guaranteed load of 400 mA at 5.0 V output
Quad dc-to-25 Mbps (NRZ) signal isolation channels
20-lead SSOP package
High temperature operation: 105°C maximum
High common-mode transient immunity: >25 kV/µs
200 kHz to 1 MHz adjustable oscillator frequency
Soft start function at power-up
Pulse-by-pulse overcurrent protection
Thermal shutdown
Safety and regulatory approvals
UL recognition: 2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 560 V peak
Qualified for automotive applications T1 X1 VDDA VISO RECT VDD1 DRIVER VREG X2 ADuM3470/ADuM3471/
ADuM3472/ADuM3473/ …