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NCP1205P2 Datasheet

  • NCP1205P2

  • Single Ended PWM Controller Featuring QR Operation and Soft ...

  • 166.88KB

  • 20頁(yè)

  • ONSEMI

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NCP1205
Single Ended PWM
Controller Featuring QR
Operation and Soft
Frequency Foldback
The NCP1205 combines a true Current Mode Control modulator
and a demagnetization detector to ensure full Discontinuous
Conduction Mode in any load/line conditions and minimum drain
voltage switching (Quasi鈥揜esonant operation, also called critical
conduction operation). With its inherent Variable Frequency Mode
(VFM), the controller decreases its operating frequency at constant
peak current whenever the output power demand diminishes.
Associated with automatic multiple valley switching, this unique
architecture guarantees minimum switching losses and the lowest
power drawn from the mains when operating at no鈥搇oad conditions.
Thus, the NCP1205 is optimal for applications targeting the newest
International Energy Agency (IEA) recommendations for standby
power.
The internal High鈥揤oltage current source provides a reliable
charging path for the V
CC
capacitor and ensures a clean and short
start鈥搖p sequence without deteriorating the efficiency once off.
The continuous feedback signal monitoring implemented with an
Over鈥揅urrent fault Protection circuitry (OCP) makes the final design
rugged and reliable. An internal Over Voltage Protection (OVP) circuit
continuously monitors the V
CC
pin and stops the IC whenever its level
exceeds 36 V. The DIP14 offers an adjustable version of the OVP
threshold via an external resistive network.
Features
http://onsemi.com
MARKING
DIAGRAMS
8
PDIP鈥?
N SUFFIX
CASE 626
1
1
NCP1205P
AWL
YYWW
8
14
PDIP鈥?4
P SUFFIX
CASE 646
1
A
WL
YY
WW
1
= Assembly Location
= Wafer Lot
= Year
= Work Week
NCP1205P2
AWLYYWW
14
鈥?/div>
Natural Drain Valley Switching for Lower EMI and Quasi鈥揜esonant
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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Operation (QR)
Smooth Frequency Foldback for Low Standby and Minimum Ripple
at Light鈥揕oad
Adjustable Maximum Switching Frequency
Internal 200 ns Leading Edge Blanking on Current Sense
250 mA Sink and Source Driver
Wide Operating Voltages: 8.0 to 36 V
Wide UVLO Levels: 7.2 to 15 V Typical
Auto鈥揜ecovery Internal Short鈥揅ircuit Protection (OCP)
Integrated 3.0 mA Typ. Start鈥揢p Source
Current Mode Control
Adjustable Over鈥揤oltage Level
Available in DIP8 and DIP14 Package
High Power AC/DC Adapters for Notebooks, etc.
Offline Battery Chargers
Power Supplies for DVD, CD Players, TVs, Set鈥揟op Boxes, etc.
Auxiliary Power Supplies (USB, Appliances, etc.)
Device
NCP1205P
NCP1205P2
ORDERING INFORMATION
Package
PDIP鈥?
PDIP鈥?4
Shipping
50 Units/Rail
25 Units/Rail
Applications
漏
Semiconductor Components Industries, LLC, 2002
1
April, 2002 鈥?Rev. 2
Publication Order Number:
NCP1205/D

NCP1205P2 產(chǎn)品屬性

  • 25

  • 集成電路 (IC)

  • PMIC - AC-DC 轉(zhuǎn)換器，離線開關(guān)

  • -

  • 隔離

  • 90kHz ~ 125kHz

  • 8 V ~ 36 V

  • 12V

  • -

  • -25°C ~ 150°C

  • 14-DIP（0.300"，7.62mm）

  • 14-PDIP

  • 管件

  • NCP1205P2OS

NCP1205P2相關(guān)型號(hào)PDF文件下載

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  • 英文版
    Sub 1.0 V Precision Adjustable Shunt Regulator
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    Integrated Off-Line Switching Regulator
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    Integrated Off-Line Switching Regulator
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    Integrated Off-Line Switching Regulator
    ONSEMI [ON...
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  • 英文版
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    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI [ON...
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI [ON...
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI [ON...
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI [ON...
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI [ON...
  • 英文版
    Self-Supplied Monolithic Switcher for Low Standby- Power Off...
    ONSEMI [ON Semi...

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