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NCP1200AD60R2-NCP1200AP40 Fast Delivery,Good Price
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NCP1200AD60R2ONN/a7500avaiPWM Current Mode Controller With Low Standby Power, 40/60/100kHz
NCP1200AP40ONN/a4337avaiPWM Current Mode Controller With Low Standby Power, 40/60/100kHz


NCP1200AD60R2 ,PWM Current Mode Controller With Low Standby Power, 40/60/100kHzELECTRICAL CHARACTERISTICS (For typical values T = 25°C, for min/max values T = 0°C to +125°C, Max ..
NCP1200AP40 ,PWM Current Mode Controller With Low Standby Power, 40/60/100kHzFeatures11• Pb−Free Packages are Available• No Auxiliary Winding Operationxxx = Specific Device Cod ..
NCP1200AP60 ,PWM Current Mode Controller With Low Standby Power, 40/60/100kHz3AND8069/DUsing an auxiliary winding as wired according to Figure 6offers true short–circuit protec ..
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NCP1200AD60R2-NCP1200AP40
PWM Current Mode Controller With Low Standby Power, 40/60/100kHz
NCP1200A
PWM Current-Mode
Controller for Universal
Off-Line Supplies Featuring
Low Standby Power
Housed in SOIC−8 or PDIP−8 package, the NCP1200A enhances
the previous NCP1200 series by offering a reduced optocoupler
current together with an increased drive capability. Due to its novel
concept, the circuit allows the implementation of complete off−line
AC−DC adapters, battery charger or a SMPS where standby power is a
key parameter.
With an internal structure operating at a fixed 40 kHz, 60 kHz or
100 kHz, the controller supplies itself from the high−voltage rail,
avoiding the need of an auxiliary winding. This feature naturally eases
the designer task in battery charger applications. Finally,
current−mode control provides an excellent audio−susceptibility and
inherent pulse−by−pulse control.
When the current setpoint falls below a given value, e.g. the output
power demand diminishes, the IC automatically enters the so−called
skip cycle mode and provides excellent efficiency at light loads.
Because this occurs at a user adjustable low peak current, no acoustic
noise takes place.
The NCP1200A features an efficient protective circuitry which, in
presence of an overcurrent condition, disables the output pulses while
the device enters a safe burst mode, trying to restart. Once the default
has gone, the device auto−recovers.
Features
Pb−Free Packages are Available No Auxiliary Winding Operation Auto−Recovery Internal Output Short−Circuit Protection Extremely Low No−Load Standby Power Current−Mode Control with Skip−Cycle Capability Internal Temperature Shutdown Internal Leading Edge Blanking 250 mA Peak Current Capability Internally Fixed Frequency at 40 kHz, 60 kHz and 100 kHz Direct Optocoupler Connection SPICE Models Available for TRANsient and AC Analysis Pin to Pin Compatible with NCP1200
Typical Applications
AC−DC Adapters for Portable Devices Offline Battery Chargers Auxiliary Power Supplies (USB, Appliances, TVs, etc.)
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