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NCP1201P100G Datasheet

  • NCP1201P100G

  • PWM Current-Mode Controller for Universal Off-Line Supplies ...

  • 20頁

  • ONSEMI

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NCP1201
PWM Current鈭扢ode
Controller for Universal
Off鈭扡ine Supplies Featuring
Low Standby Power with
Fault Protection Modes
Housed in SOIC鈭? or PDIP鈭? package, the NCP1201 enhances the
previous NCP1200 series by offering a reduced optocoupler current
with additional Brownout Detection Protection (BOK). Similarly, the
circuit allows the implementation of complete off鈭抣ine AC鈭扗C
adapters, battery chargers or Switchmode Power Supplies (SMPS)
where standby power is a key parameter.
The NCP1201 features efficient protection circuitry. When in the
presence of a fault (e.g. failed optocoupler, overcurrent condition, etc.)
the control permanently disables the output pulses to avoid subsequent
damage to the system. The IC only restarts when the user cycles the
mains power supply.
With the low power internal structure, operating at a fixed 60 or
100 kHz, the controller supplies itself from the high鈭抳oltage rail,
avoiding the need of an auxiliary winding. This feature naturally eases
the designer鈥檚 task in battery charger applications. Finally,
current鈭抦ode control provides an excellent audio鈭抯usceptibility and
inherent pulse鈭抌y鈭抪ulse control.
When the load current falls down to a pre鈭抎efined setpoint (V
SKIP
)
value, e.g. the output power demand diminishes, the IC automatically
enters the skip cycle mode and can provide excellent efficiency under
light load conditions. The skip mode is designed to operate at
relatively lower peak current so that acoustic noise that commonly
takes place will not happen with NCP1201.
Features
http://onsemi.com
MARKING
DIAGRAMS
8
8
1
8
PDIP鈭?
P SUFFIX
CASE 626
8
1
y
y
xx
xx
A
L
Y, YY
W, WW
1
= Device Code: 6 for 60 kHz
= Device Code:
1 for 100 kHz
= Device Code: 60 for 60 kHz
= Device Code:
10 for 100 kHz
= Assembly Location
= Wafer Lot
= Year
= Work Week
1201Pxx
AWL
YYWW
SOIC鈭?
D SUFFIX
CASE 751
1
201Dy
ALYW
PIN CONNECTIONS
BOK
FB
CS
GND
1
2
3
4
(Top View)
8
7
6
5
HV
NC
VCC
DRV
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Pb鈭扚ree Packages are Available
AC Line Brownout Detect Protection, BOK Function
Latchoff Mode Fault Protection
No Auxiliary Winding Operation
Internal Output Short鈭扖ircuit Protection
Extremely Low No鈭扡oad Standby Power
Current鈭扢ode with Skip鈭扖ycle Capability
Internal Overtemperature Shutdown
Internal Leading Edge Blanking
250 mA Gate Peak Current Driving Capability
Internally Fixed Switching Frequency at 60 or 100 kHz
Built鈭抜n Frequency Jittering for EMI Reduction
Direct Optocoupler Connection
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 17 of this data sheet.
Typical Applications
鈥?/div>
AC鈭扗C Adapters
鈥?/div>
Offline Battery Chargers
鈥?/div>
Auxiliary Power Supplies (USB, Appliances, TVs, etc.)
漏
Semiconductor Components Industries, LLC, 2004
1
October, 2004 鈭?Rev. 3
Publication Order Number:
NCP1201/D

NCP1201P100G 產(chǎn)品屬性

  • 50

  • 集成電路 (IC)

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

  • -

  • 隔離

  • 92kHz ~ 117kHz

  • 12.5 V ~ 16 V

  • 500V

  • -

  • -40°C ~ 150°C

  • 8-DIP（0.300"，7.62mm）

  • 8-PDIP

  • 管件

NCP1201P100G相關(guān)型號PDF文件下載

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