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原装现货MP2451DT-LF-Z,MP4026,MP4056,MP24894,MP6907电源芯片 原装进品MP4026GJ-Z电源芯片 原装进品MP24894GJ-Z电源芯片The MP6907 is a low-rop diode emulator controller IC that, when combined with an
external MOSFET, can replace Schottky diodes in high-efficiency flyback converters.
The MP6907 regulates the forward drop of an external switch to about 70mV, which
switches off once the voltage becomes negative.
The MP6907 provides a SYNC interface to receive an external signal to shut down the
gate driver for reliable continuous conduction mode (CCM) operation. A programmable
light-load sleep mode can reduce the IC’squiescent current to ~150μA.
The MP6907 is available in compact SOIC8
and TSOT23-6 packages.
原装进品MP4026GJ-Z电源芯片优势供应MP6907,MP4026,MP24894,MP2459,MP6908,MP6907GJ-Z,MP24894GJ-Z,MP4026GJ-Z,MP2459GJ-Z等全系列MPS电源IC(AC-DC,DC-DC)MP1584,MP4088,MP157,MP20,MP30,MP4056GS-Z,MP2451....
FEATURES
Works with 12V Standard and 5V Logic
Level MOSFETS
Compatible with Energy Star 1W Standby
Requirements
Fast Turn-Off Total Delay of 25ns
4.2V~35V Wide VDD Operating Range
~150μA Quiescent Current in Light-Load
原装进品MP4026GJ-Z电源芯片Mode(1)
Supports CCM, DCM, and QuasiResonant Operation
SYNC Interface for CCM Operation
Supports High-Side and Low-Side
Rectification
原装进品MP4026GJ-Z电源芯片 原装进品MP24894GJ-Z电源芯片
Power Savings of up to 1.5W in a Typical
Notebook Adapter
Available in SOIC8 and TSOT23-6
The MP6907 supports flyback converteroperation in continuous conduction mode
(CCM), discontinuous conduction mode (DCM), and quasi-resonant mode. The
control circuitry controls the gate in forward mode and turns the gate off when the MOSFET current is fairly low.
VD ClampBecause VD can rise as high as 180V, a
high-voltage JFET is used at the input. To avoid excessive currents when VG drops
below -0.7V, a 1kΩ resistor is recommended between VD and the drain of the external MOSFET.
Under-Voltage Lockout (UVLO)
When VDD is below the 4.2V UVLO threshold, the MP6907 enters sleep mode, and VG
remains at a low level.
Enable (EN) IV7GJ
原装进品MP24894GJ-Z电源芯片IV7GJ 1V7GJ
If EN is pulled low, the MP6907 is in shutdownmode, which consumes ~150μA of shutdown
current. If EN is pulled high during the rectification cycle, the gate driver will not start
until the next rectification cycle begins (see Figure 2)
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MP2451DT-LF-Z
MPS
SOT23-6
NA