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DK025G
Features
Peak 92.7% 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
Product Overview:
The DK025G is a quasi-resonant flyback control AC-DC power switch chip with a highly integrated 650V/800mΩ GaN HEMT. The DK025G 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 DK025G greatly simplifies the design and manufacture of flyback AC-DC converters, especially for products requiring high conversion efficiency and high power density. DK025G 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 92.7% 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 PDFN5*6
Applications
High power density fast charger, adapter
Laptop adapters, tablet adapters, set-top box adapters, etc
Auxiliary and standby power supplies
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