iW3677

High PF, < 10% THD at Full Load and IEC61000-3-2 Compliant, Integrated Startup Device

The iW3677 front-end flyback power factor correction device provides high power factor (PF > 0.9) and low THD (< 20%) down to 33% load current using Dialog’sPF-Boost™technology. The device can be configured in both isolated and non-isolated configurations, as a buck, buck-boost or flyback converter and consumes less than 150mW no-load standby power at 230V_AC. The iW3677 integrates a high-voltage startup device which also reduces standby power consumption during normal operation.

The iW3677 integrates a full range of protection features including output over-voltage, over-power, input over-voltage and under-voltage, over-current and sense resistor short circuit protection, open loop and over temperature protection.

For option without integrated high-voltage startup, seeiW3671.

90W Off-Line Controller Supports Isolated and Non-isolated Flyback, Buck and Buck-Boost

Integrated High-Voltage Startup Device

PF > 0.9 and THD < 20% Across Input Voltage at Output Power > 33%

• THD < 10% at Full Load, Across the Input Voltage Range

Supports Wide AC Input Voltage – 90V_AC到305V._ACwith Tight AC Load and Line Regulation (±3%)

Fast PFC Ready Time < 0.2s

Standby Power - <150mW at Input Voltage of 230V_AC

Fully Protected

• Output Over-Voltage, Over-Power, Over-Current, Sense-Resistor Short Protections
• Input Voltage Under-Voltage and Over-Voltage Protection
• Built-In Over-Temperature Protection
• Open Loop Protection

Commercial Lighting:

• External Fixture Drivers