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WS2273 Datasheet(PDF) 8 Page - Shenzhen Winsemi Microelectronics Co., Ltd

Part # WS2273
Description  2273 Current Mode PWM Controller
PDF  9 Pages
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Manufacturer  WINSEMI [Shenzhen Winsemi Microelectronics Co., Ltd]
Direct Link  http://www.winsemi.com
Logo WINSEMI - Shenzhen Winsemi Microelectronics Co., Ltd

WS2273 Datasheet(HTML) 8 Page - Shenzhen Winsemi Microelectronics Co., Ltd

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WS2273
WS2273
WS2273
WS2273
8/9
Steady,
Steady,
Steady,
Steady, keep
keep
keep
keep you
you
you
you advance
advance
advance
advance
design is easier to achieve through this dedicated devise.
For MOSFET gate protection, an internal 12V clamp is
added at higher than expected VCC input.
Protection
Protection
Protection
Protection Controls
Controls
Controls
Controls
Excellent
system
stability
is
achieved
by
the
comprehensive
protection
of
2273.
Including
Cycle-by-Cycle current limiting (OCP), Over Load
Protection (OLP) and over voltage clamp, VCC Clamp,
Under Voltage Lockout on VCC (UVLO), OTP and OVP
shut down latch. At overload condition when FB input
voltage exceeds power limit threshold value for more
than TD_PL, control circuit reacts to shut down the
output power MOSFET. Device restarts when VCC
voltage drops below UVLO limit. It is clamped when VCC
is higher than threshold value. The power MOSFET is
shut down when VCC drops below UVLO limit and
device enters power on start-up sequence thereafter.



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