MT9513SF

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DESCRIPTION
MT9513SF is a high-PF, non-isolated, APFC, Buck IC for LED driver. It works in Quasi- Resonant Mode (QRM), which improves both of efficiency and EMI performance.
MT9513SF integrates the ultra-high voltage power supply circuit and external VDD capacitor is not needed. The system realizes error integration through internal digital integrator, which eliminates COMP pin and COMP capacitor. The chip can meet low THD and odd harmonic requirements through internal THD compensation circuit.
MT9513SF provides various protections with self-recovery, such as cycle-by-cycle over-current protection (OCP), over-temperature regulation (OTR), output short-circuit protection, output open-circuit protection, etc., to improve reliability. The chip programs the output OVP threshold through an external circuit connection to the ROVP pin (e.g., open circuit, ground or a resistor with different resistance values).
MT9513SF integrates feedback circuit and high-voltage MOS, which further simplifies external circuit and saves the BOM cost.
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FEATURES
Single-stage active power factor correction (PF > 0.90)
Integrates ultra-high voltage power supply without external VDD capacitor and external power supply circuit
Embedded with digital integrator, no COMP capacitor needed
Integrates THD compensation circuit
Integrates odd harmonic compensation circuit for high subharmonic distortion suppression
Internal line voltage compensation
Internal demagnetization sensing, no external feedback circuit needed
High accurate LED current
Output current foldback at low input voltage
Good line and load regulation
Operates in QRM
Set different output OVP thresholds through ROVP pin
Various protections with self-recovery
Power on soft-start
Available in SOP7 package
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LED bulb, Spotlight
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LED tube
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Other LED lighting applications