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MV1001SC Datasheet(PDF) 5 Page - Shindengen Electric Mfg.Co.Ltd

Part # MV1001SC
Description  LED driver IC
Download  35 Pages
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Manufacturer  SHINDENGEN [Shindengen Electric Mfg.Co.Ltd]
Direct Link  http://www.shindengen.co.jp/
Logo SHINDENGEN - Shindengen Electric Mfg.Co.Ltd

MV1001SC Datasheet(HTML) 5 Page - Shindengen Electric Mfg.Co.Ltd

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MV1001SC
4
Gate
Drive
Level
Shift
Bandgap
Vcc
Vreg=5V(typ)
OVP
TSD
ON
Trigger
Restart
Timer
Dimming
Control
Logic
OFF
Trigger
UVLO
Vcc
LEB
STOP Signal
Vth_CS
OVP
S
R
Q
UVLO
Latch Signal
Zero Current
Detection
JFET
1. Overview
1.1 Features
The MV1001SC is an LED driver IC that can be operated through bus voltage direct. Omitting the auxiliary winding
enables a single power supply configuration, and quasi-resonant operation in critical conduction mode raises efficiency
and lowers noise.
In general critical conduction mode, the switching frequency increases when the dimming ratio decreases. This
increases switching losses and imposes limitations on the lowest dimming ratios, disadvantageously. When the dimming
ratio decreases, the MV1001SC automatically switches from critical conduction mode to discontinuous conduction mode.
This prevents the switching frequency increasing, reduces switching losses, and achieves smooth and deep dimming free
of flickering.
The MV1001SC has the following features:
Allows quasi-resonant operation without auxiliary winding.
Quasi-resonant operation in critical conduction mode helps achieve low input change, raises efficiency, and lowers
noise.
Off-time modulation enables deep dimming (1% or less).
Allows PWM dimming input and linear dimming input.
Compatible with Glow wall switch
Allows LED open-circuit protection using auxiliary winding.
Features built-in thermal shutdown, UVLO, and LED short-circuit protection.
Can be operated through bus voltage direct.
1.2 Block diagram
CAT.No.1A0102-1E


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