Product |
Description |
Vin(V) |
Max drive capacity |
PFC |
Dimming |
Package |
PDF |
MT79328 |
Internal 700V MOS |
85~264VAC |
24W |
>0.9 |
N/A |
DIP8 |
DESCRIPTION
The MT79328 is a single-stage, primary side control AC-DC LED driver with active power factor correction. The MT79328 integrates on-chip PFC circuit operates in discontinuous conduction mode (DCM) to achieve high power factor and low harmonic distortion (THD). With MAXIC Proprietary control technique, precision LED current is achieved without secondary side sense and feedback circuit including opto-coupler. Embedded with 700V power MOSFET, the peripheral circuit is simplified.
The MT79328 provides various protections, such as over current protection (OCP), over voltage protection (OVP), short circuit protection (SCP) and over temperature protection (OTP), etc, to improve system reliability.
FEATURES
Single-stage Active PFC for high power factor and low THD (<8%)
Primary side control eliminates opto-coupler
High precision LED current (±3%)
Cycle-by-cycle current limiting
Under-voltage lockout (UVLO) protection
VDD and output over voltage protection
Adjustable constant current and output power setting
Power on soft-start
Embedded with 700V power MOSFET
Available in DIP8 package

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