The stands out in the semiconductor market as a cost-effective, high-efficiency solution for off-line LED driving. By integrating the MOSFET and removing the need for magnetic components, it simplifies the design process for lighting manufacturers, offering a robust balance of performance, size, and cost.
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Flying Capacitor Negative Terminal. Connection point for the charge-pump capacitor. C+ hxje ic datasheet top
Connected between the input source and the Switching (SW) pin.
Low-noise, low-ripple constant frequency operation Compliance: RoHS Compliant / Lead-free Pin Configuration & Function Breakdown (SOT23-6) The stands out in the semiconductor market as
Once the data is aggregated, the engineer compiles a "gray-box" datasheet that mirrors a standard manufacturer document: Proposed Datasheet Section Sourcing Method
Regulated Output Voltage. Requires a low-ESR bypass capacitor to ground. GND Flying Capacitor Negative Terminal
Regulated output voltage pin. Requires a bypass capacitor to ground. Ground reference link. 3 Shutdown/Enable control input. High logic ( ) enables the chip; active low cuts power. 4 C−cap C raised to the negative power
Position low-ESR ceramic capacitors (typically ) as close as possible to Pin 6 ( VINcap V sub cap I cap N end-sub ) and Pin 4 ( VOUTcap V sub cap O cap U cap T end-sub ) relative to the ground pin. Grounding Plane: Ensure the GNDcap G cap N cap D
Feedback Pin. Used for closed-loop control to monitor and regulate the output voltage accurately. 4. Typical Application Circuit
Operating at a fixed frequency of 360 kHz prevents sub-harmonic noise from bleeding into audio or wireless communication paths. The SOT23-6 package exhibits robust thermal characteristics, enabling it to comfortably sustain high continuous output currents under heavy loads without encountering immediate thermal throttling. Top Application Scenarios
