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MT7813

APPLICATIONS
LED bulb, LED tube, LED signal and landscape lamp
LED stage light, LED candle light, LED corn light, etc
General purpose constant current source

Product

Description

Vin(V)

Max drive capacity

PFC

Dimming

Package

PDF

MT7813

Internal 500V MOS,
OVP

85~264VAC

300/360mA

>0.5

N/A

SOP8/DIP7

MT7813

DESCRIPTION
MT7813 is a high precision LED constant current control chip operating at critical conduction mode (CRM) with zero current switched-on and peak current switched-off. It’s mainly targeted for non-isolated buck LED power systems. Critical conduction mode ensures that the MT7813 turns on the internal power MOSFET when the inductor current reaches zero, reducing the power MOSFET switching loss, the system achieves more than 95% efficiency. With critical conduction mode, and the input compensation, MT7813 outputs high accuracy LED current, and further achieves good line regulation and load regulation. MT7813 embedded with internal power MOSFET, simplify the peripheral circuits. Low BOM cost is achieved. MT7813 has wide working voltage range, which is suitable for full-range AC input or 10V-400V DC input voltage. MT7813 provides various kinds of protections, such as over current protection(OCP), short circuit protection (SCP), over voltage protection (OVP) and over temperature protection(OTP), etc, to ensure system reliability.

FEATURES
Critical Conduction Mode, not sensitive to the inductance.
Up to 95% of efficiency
Highly accurate constant LED current
Cycle-by-cycle current limitation
LED Short Circuit Protection
LED Over Voltage Protection
Leading edge blanking technique
Under-voltage lockout (UVLO) protection
Over temperature protection
SOP8/ DIP7 package

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