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NCP1601A Datasheet(PDF) 1 Page - ON Semiconductor

Part No. NCP1601A
Description  Compact Fixed Frequency Discontinuous or Critical Conduction Voltage Mode Power Factor Correction Controller
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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NCP1601A Datasheet(HTML) 1 Page - ON Semiconductor

 
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© Semiconductor Components Industries, LLC, 2005
December, 2005 − Rev. 4
1
Publication Order Number:
NCP1601A/D
NCP1601A, NCP1601B
Compact Fixed Frequency
Discontinuous or Critical
Conduction Voltage Mode
Power Factor Correction
Controller
The NCP1601 is a controller designed for Power Factor Correction
(PFC) boost circuits. The device operates in fixed−frequency
Discontinuous Conduction Mode (DCM) and variable−frequency
Critical Conduction Mode (CRM) and takes advantages from both
operating modes. DCM limits the maximum switching frequency. It
simplifies the front−ended EMI filter design. CRM limits the
maximum currents of the boost stage diode, MOSFET and inductor.
It reduces the costs and improves the reliability of the circuit. This
device substantially exhibits unity power factor while operating in
DCM and CRM. The NCP1601 minimizes the required number of
external components. It incorporates high safety protection features
that make the NCP1601 suitable for robust and compact PFC stages.
Features
Near−Unity Power Factor in DCM or CRM
Voltage−Mode Operation
Low Startup and Shutdown Current Consumption
Programmable Switching Frequency for DCM
Synchronization Capability
Overvoltage Protection (107% of Nominal Output Level)
Undervoltage Protection or Shutdown
(8% of Nominal Output Level)
Programmable Overcurrent Protection
Thermal Shutdown with Hysteresis (95/140°C)
Two VCC Undervoltage Lockout Hysteresis Options:
4.75 V for NCP1601A and 1.5 V for NCP1601B
Pb−Free Packages are Available
Typical Applications
Electronic Light Ballast
AC Adapters
TV & Monitors
Mid−Power Applications
MARKING
DIAGRAM
x
= A or B
A
= Assembly Location
L, WL
= Wafer Lot
Y, YY
= Year
W, WW
= Work Week
G
= Pb−Free Package
G
= Pb−Free Package
http://onsemi.com
PDIP−8
N SUFFIX
CASE 626
1
8
1
8
SOIC−8
D SUFFIX
CASE 751
NCP1601x
AWL
YYWWG
1
8
1601x
ALYW
G
1
8
PIN CONNECTIONS
1
FB
8 VCC
2
Vcontrol
3
Ramp
4
CS
7 Drv
6 GND
5 Osc
(Top View)
See detailed ordering and shipping information in the package
dimensions section on page 15 of this data sheet.
ORDERING INFORMATION


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