LD956KA1Multi-Mode PWM Controller of Flyback with GaN FET Integrated
In order to enhance the efficiency performance, the LD956KA1 integrates the multi-mode PWM controller, which consists of Quasi-Resonant (QR) PWM control for light load condition and peak load mode for heavy load condition. Moreover, the QR controller not only gains the system performance, but also brings the worse EMI capability, while the frequency swapping function of LD956KA1 can reduce the EMI emission of SMPS and helps the power circuit designers to simply deal with EMI filter and saves several component and developing time.
The LD956KA1 is implemented in DFN5x6 package, and includes the comprehensive protection function, such as Over Power Protection (OPP), Over Current Protection (OCP), Over Voltage Protection (OVP) and internal Over Temperature Protection (OTP). Furthermore, the programmable brown-in/out protection is built-in.
Features
- Integrated 650V GaN FET(E-mode)
- Low Startup Current (<1mA)
- 0.35mA Ultra-low operating current at light load
- Green Mode Control
- VCC Ratting around 85V
- Smart stabilization system and high efficiency for USB-PD App
- VCC OVP (Over Voltage Protection)
- Adj. OVP (Over Voltage Protection) on FB pin.
- OPP (Over Power Protection)
- Internal OTP (Over Temperature Protection)
- SDSP (Secondary Diode Short Protection)
- Accurate LPS Protections ± 8%
Applications
- Switching AC/DC Adaptor
