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DK045G

Features

 Peak 93.5% efficiency
 Supports up to 250KHz switching frequency
 Standby power consumption less than 50mW
 works in QR mode
 built-in algorithm optimized bottom detection circuit and bottom locking circuit
 Built-in demagnetizing detection circuit
 Built-in jitter circuit effectively improves EMI
 Built-in high and low voltage input power compensation circuit to ensure the same maximum output power at high and low
 Halogen-free and ROHs compliant

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Product details

Product Overview:

The DK045GD is a quasi-resonant flyback control AC-DC power switch chip with a highly integrated 650V/400mΩ GaN HEMT. The DK045GD detects the voltage (VDS) between the drain and source of the power tube and opens the power tube when the VDS reaches its lowest value, thereby reducing switching losses and improving electromagnetic interference (EMI).

The DK045GD greatly simplifies the design and manufacture of flyback AC-DC converters, especially for products requiring high conversion efficiency and high power density. DK045GD has perfect protection functions: output overvoltage protection (OVP), VCC over voltage protection, over temperature protection (OTP), open loop protection, output over current protection (OCP) and so on.

Features

 Peak 93.5% efficiency

 Supports up to 250KHz switching frequency

 Standby power consumption less than 50mW

 works in QR mode

 built-in algorithm optimized bottom detection circuit and bottom locking circuit

 Built-in demagnetizing detection circuit

 Built-in jitter circuit effectively improves EMI

 Built-in high and low voltage input power compensation circuit to ensure the same maximum output power at high and low

 Halogen-free and ROHs compliant

 Certified by IEC 62368-1:2018 as NO123514

 Package model DFN8*8