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Référence fabricant

NCP1200D40R2G

NCP1200 Series 16 V 48 kHz Surface Mount PWM Current-Mode Controller - SOIC-8

Product Specification Section
Caractéristiques techniques
Attributes Table
Supply Voltage: 11.4V to 16V
Duty Cycle-Max: 87%
Frequency-Max: 48kHz
Operating Temp Range: -25°C to +150°C
Style d'emballage :  SOIC-8
Méthode de montage : Surface Mount
Fonctionnalités et applications

The NCP1200 PWM Current-Mode Controller for Low-Power Universal Off-Line Supplies

Housed in SOIC−8 or PDIP−8 package, the NCP1200 represents a major leap toward ultra−compact Switchmode Power Supplies. Due to a novel concept, the circuit allows the implementation of a complete offline battery charger or a standby SMPS with few external components. Furthermore, an integrated output short−circuit protection lets the designer build an extremely low−cost AC−DC wall adapter associated with a simplified feedback scheme. With an internal structure operating at a fixed 40 kHz, 60 kHz or 100 kHz, the controller drives low gate−charge switching devices like an IGBT or a MOSFET thus requiring a very small operating power. Due to current−mode control, the NCP1200 drastically simplifies the design of reliable and cheap offline converters with extremely low acoustic generation 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 skip cycle mode and provides excellent efficiency at light loads. Because this occurs at low peak current, no acoustic noise takes place. Finally, the IC is self−supplied from the DC rail, eliminating the
need of an auxiliary winding. This feature ensures operation in presence of low output voltage or shorts.

Key Features:

  • No Auxiliary Winding Operation
  • Internal Output Short−Circuit Protection
  • Extremely Low No−Load Standby Power
  • Current−Mode with Skip−Cycle Capability
  • Internal Leading Edge Blanking
  • 250 mA Peak Current Source/Sink Capability
  • Internally Fixed Frequency at 40 kHz, 60 kHz and 100 kHz
  • Direct Optocoupler Connection
  • Built−in Frequency Jittering for Lower EMI
  • SPICE Models Available for TRANsient and AC Analysis
  • Internal Temperature Shutdown
  • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant

Applications:

  • AC−DC Adapters
  • Offline Battery Chargers
  • Auxiliary/Ancillary Power Supplies (USB, Appliances, TVs, etc.)

To learn more about NCP1200 product family, Click Here

Pricing Section
Stock:
Prix Internet:
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$7.00 les frais d’enroulage sont amortis par le nombre de composants pour chaque bobine.
Les mini-bobines sont des produits personnalisés et ne peuvent pas être annulés ou remboursés.

Product Variant Information section