NCP1216: PWM Controller, Fixed Frequency, Current Mode

Housed in an SOIC-8 or DIP-7 package, the NCP1216 represents an enhanced version of NCP1200-based controllers. Due to its high drive capability, NCP1216 drives large gate-charge MOSFETs, which together with internal ramp compensation and built-in frequency jittering, ease the design of modern AC/DC adapters.With an internal structure operating at different fixed frequencies, the controller supplies itself from the high-voltage rail, avoiding the need of an auxiliary winding. This feature naturally eases the designer task in some particular applications, e.g. battery chargers or TV sets. Current-mode control also provides an excellent input audio-susceptibility and inherent pulse-by-pulse control. Internal ramp compensation easily prevents sub-harmonic oscillations from taking place in continuous conduction mode designs.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 NCP1216 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
  • No auxiliary winding operation
  • Current-mode control with adjustable skip-cycle capability
  • Internal ramp compensation
  • Built-in frequency jittering for better EMI signature
  • Auto-recovery internal output short circuit protection
  • Extremely low no-load standby power
  • 500mA peak current capability
  • Fixed frequency versions at 65 kHz, 100 kHz, 133 kHz
  • Internal temperature shutdown
  • Direct optocoupler connection
  • SPICE models available for TRANsient and AC analysis
  • Pin-to-pin compatible with NCP1200 series
  • Internal 1ms Soft Start (A version Only)
  • Limited Duty Cycle to 50% (A Version Only)
  • Pb-Free packages are available
Applications
  • High power AC/DC converters for TVs, set-top boxes etc.
  • Offline adapters for notebooks
  • Telecom DC-DC converters
  • All power supplies
Design & Development Tools (1)
Document TitleDocument ID/SizeRevisionRevision Date
Flyback Current Mode Loop Compensation Design WorksheetFLYBACK DWS.XLS.ZIP (3516kB)10Dec, 2014
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
PWM Current-Mode Controller for High-Power Universal Off-Line SuppliesNCP1216/D (391kB)16May, 2016
Package Drawings (2)
Document TitleDocument ID/SizeRevision
PDIP-7 (PDIP-8 LESS PIN 7)626B (34.7kB)D
SOIC-8 Narrow Body751-07 (62.6kB)AK
Application Notes (8)
Document TitleDocument ID/SizeRevisionRevision Date
A 70 W Low Standby Power Supply w/NCP120x SeriesAND8076/D (178.0kB)2
Conducted EMI Filter Design for the NCP1200AND8032/D (534.0kB)2
Implementing Constant Current Constant Voltage AC Adapter by NCP1200 and NCP4300AAND8042/D (63.0kB)1
Implementing a DC/DC Single-Ended Forward Converter with the NCP1216AAND8161/D (99.0kB)0
Implementing the NCP1200 in Low-Cost AC/DC ConvertersAND8023/D (369.0kB)3
Offline Buck Converter with Tapped Inductor Improves PerformanceAND8318/D (100.0kB)1
Stability Analysis in Multiple Loop SystemsAND8327/D (213.0kB)0
Tips and Tricks to Build Efficient Circuits with NCP1200AND8069/D (139.0kB)1
Simulation Models (2)
Document TitleDocument ID/SizeRevisionRevision Date
NCP1216 TRANsient and AC model for Intusoft IsSpice with a Typical Application ExampleNCP1216 ISSPICE TEMPLATES .ZIP (114.0kB)0
NCP1216 TRANsient and AC model for Orcad PSpice with a Typical Application ExampleNCP1216 ORCAD TEMPLATES.ZIP (30.0kB)0
Evaluation Board Documents (4)
Document TitleDocument ID/SizeRevisionRevision Date
NCP1216LEDGEVB Bill of Materials ROHS CompliantNCP1216LEDGEVB_BOM_ROHS.PDF (39.0kB)0
NCP1216LEDGEVB Gerber Layout Files (Zip Format)NCP1216LEDGEVB_GERBER.ZIP (54.0kB)0
NCP1216LEDGEVB SchematicNCP1216LEDGEVB_SCHEMATIC.PDF (128.0kB)0
NCP1216LEDGEVB Test ProcedureNCP1216LEDGEVB_TEST_PROCEDURE.PDF (147.0kB)0
Evaluation/Development Tool Information
ProductStatusComplianceShort Description
NCP1216LEDGEVBActivePb-freeNon-Isolated Buck LED Driver Evaluation Board
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NCP1216D100R2GActivePb-free Halide freeSOIC-8751-071Tape and Reel2500$0.4667
NCP1216D133R2GActivePb-free Halide freeSOIC-8751-071Tape and Reel2500$0.4667
NCP1216D65R2GActivePb-free Halide freeSOIC-8751-071Tape and Reel2500$0.35
NCP1216P100GActivePb-free Halide freePDIP-8626BNATube50$0.4667
NCP1216P133GActivePb-free Halide freePDIP-8626BNATube50$0.35
NCP1216P65GActivePb-free Halide freePDIP-8626BNATube50$0.4667
Specifications
ProductTopologyControl Modefsw Typ (kHz)Stand-by ModeUVLO (V)Short Circuit ProtectionLatchSoft StartVCC Max (V)Drive Cap. (mA)
NCP1216D100R2GFlybackCurrent Mode100YesNoYesNoNo16500
NCP1216D133R2GFlybackCurrent Mode133YesNoYesNoNo16500
NCP1216D65R2GFlybackCurrent Mode65YesNoYesNoNo16500
NCP1216P100GFlybackCurrent Mode100YesNoYesNoNo16500
NCP1216P133GFlybackCurrent Mode133YesNoYesNoNo16500
NCP1216P65GFlybackCurrent Mode65YesNoYesNoNo16500
PWM Current-Mode Controller for High-Power Universal Off-Line Supplies (391kB) NCP1216A
Flyback Current Mode Loop Compensation Design Worksheet NCP1129
A 70 W Low Standby Power Supply w/NCP120x Series MUR160
Conducted EMI Filter Design for the NCP1200 MBRS360P
Implementing Constant Current Constant Voltage AC Adapter by NCP1200 and NCP4300A NDD02N60Z
Implementing a DC/DC Single-Ended Forward Converter with the NCP1216A NCP1216A
Implementing the NCP1200 in Low-Cost AC/DC Converters NCP1216
Offline Buck Converter with Tapped Inductor Improves Performance NCP1055
Stability Analysis in Multiple Loop Systems NCP1055
Tips and Tricks to Build Efficient Circuits with NCP1200 NCP1308
NCP1216 TRANsient and AC model for Intusoft IsSpice with a Typical Application Example NCP1216A
NCP1216 TRANsient and AC model for Orcad PSpice with a Typical Application Example NCP1216A
NCP1216LEDGEVB BOM ROHS NCP1216LEDGEVB
NCP1216LEDGEVB GERBER NCP1216LEDGEVB
NCP1216LEDGEVB SCHEMATIC NCP1216LEDGEVB
NCP1216LEDGEVB TEST PROCEDURE NCP1216LEDGEVB
SOIC-8 Narrow Body CM1216
PDIP-7 (PDIP-8 LESS PIN 7) NCP1129
NCP1216A