MT9515SF datasheet(1/1 Pages) MAXIC

부품명	MT9515SF

상세설명	Non-isolated APFC BUCK LED Driver

PDF	1 Pages

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제조업체	MAXIC [Maxic Technology Corporation]

홈페이지	http://www.maxictech.com/

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MT9515SF

Maximizing IC Performance

Non-isolated APFC BUCK LED Driver

Email: sales@maxictech.com

www.maxictech.com

Rev. 1.05

Tel: 86-10-62662828

Page 1

DESCRIPTION

The MT9515SF is a high-PF, non-isolate, BUCK

LED

Driver

IC.

MT9515SF

works

in

Quasi-Resonant Mode (QRM), which improves

both of efficiency and EMI performance.

The system integrates the ultra-high voltage

power supply circuit. The external VDD capacitor

is not needed. The system realizes error

integration through internal digital integrator,

which eliminates COMP pin and COMP capacitor.

MT9515SF can meet low THD and odd harmonic

requirements

through

internal

THD

compensation circuit.

Various protections with self-recovery, such as

input

over

voltage

protection

(OVP),

cycle-by-cycle over current protection (OCP),

over temperature protection, output short-circuit

protection, output open-circuit protection, etc. are

embedded

to

improve

reliability.

The

chip

programs the output over voltage protection

threshold through an external circuit connection

to the ROVP pin (e.g. open circuit, GND or a

resistor with different resistance values).

The MT9515SF integrates feedback circuit and

high voltage MOSFET, which further simplifies

external circuit and saves the BOM cost.

APPLICATIONS



LED bulb, Spotlight



LED tube



Other LED lighting applications

FEATURES



Single-stage active power factor correction

(PF > 0.90)



Integrated ultra-high voltage power supply

without external VDD capacitor and external

power supply circuit



Embedded digital integrator, no COMP

capacitor needed



Integrated THD compensation circuit



Integrated 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



Quasi-Resonant mode (QRM) operation



Integrated Input OVP, when input voltage is

higher than 375Vac, turns off the power

switch, resumes at input voltage below

320Vac. Enhances anti-surge capability and

improves system reliability



Set different output OVP thresholds through

ROVP pin



Various protections and self-recovery



Power on soft-start



Available in SOP7 packages

Typical Application Circuit

MT9515SF

HV

ROVP

DRAIN

CS

GND

C1

L

N

BRG

C2

L1

DRAIN

D1

R1

Rcs

NC

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