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MT7933 データシート PDF ( 特性, スペック, ピン接続図 )

部品番号 MT7933
部品説明 AC-DC LED Driver
メーカ Maxic Technology
ロゴ Maxic Technology ロゴ 

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MT7933 Datasheet, MT7933 PDF,ピン配置, 機能
Maximizing IC Performance
MT7933
Single Stage, High PFC, AC-DC LED Driver
DESCRIPTION
MT7933 is a single-stageprimary side control
AC-DC LED driver with active power factor
correction. MT7933 integrates on-chip PFC
circuit operates in critical conduction mode (CRM)
to achieve high power factor and reduce the
power MOSFET switching loss. With MAXIC
Proprietary control technique, precision LED
current is achieved without secondary side
sense and feedback circuit including
opto-coupler.
MT7933 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.
Typical Application Circuit
FEATURES
Single-stage Active PFC for high power
factor and low THD
Primary side control eliminates opto-coupler
High precision LED current (+/-3%)
Critical Conduction Mode operation
Up to 20W driving capability.
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
Compact SOT23-6 package
APPLICATIONS
AC/DC LED driver applications
Signal and decorative LED lighting
E14/E27/PAR30/PAR38/GU10 LED lamp
T8/T10 LED String
MT7933 Rev. 1.10
www.maxictech.com
Copyright © 2012 Maxic Technology Corporation
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