NCP1397: Controller, High Performance, Resonant Mode, with Integrated High Voltage Drivers

The NCP1397 is a high performance controller that can be utilized in half bridge resonant topologies such as series resonant, parallel resonant and LLC resonant converters. It integrates 600 V gate drivers, simplifying layout and reducing external component count. With its unique architecture, including a 500 kHz Voltage Controlled Oscillator whose control mode permits flexibility when an ORing function is required, the NCP1397 delivers everything needed to build a reliable and rugged resonant mode power supply. The NCP1397 provides a suite of protection features with configurable settings to optimize any application. These include: auto-recovery or fault latch-off, brown-out, open optocoupler, soft-start and short-circuit protection. Deadtime is also adjustable to overcome shoot through current. NCV1397 offers an Automotive certified version (AEC-Q100/PPAP)

Features
  • Adjustable minimum switching frequency with 3% accuracy
  • Brown-out input
  • 1 A / 0.5 A Peak Current Sink / Source Drive
  • Timer-based OCP input with auto-recovery
  • Second latched OCP level
  • Adjustable deadtime from 100 ns to 2 us
  • Adjustable soft-start
Benefits
  • Keeps the converter operation in the right region & simplifies design
  • Simple PFC association
  • High gate drive capability
  • Allows transient overload, protects against overpower
  • Protects application in case of short circuit
  • Prevents shoot-through currents and allows for optimization based on MOSFET characteristics
  • Reduces startup currents
Applications
  • Flat panel display power converters
  • High power AC/DC adapters for notebooks
  • Computing power supplies
  • Industrial and medical power sources
  • Offline battery chargers
  • Automotive LLC Power Supply
End Products
  • Notebook Adapters
  • LCD TVs
  • ATX power supplies
Design & Development Tools (1)
Document TitleDocument ID/SizeRevisionRevision Date
LLC Circuits Design WorksheetLLC GENERIC DWS.XLS (1366.0kB)2
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SOIC-16 NB, Less Pin 13751AM (51.9kB)O
Evaluation Board Documents (4)
Document TitleDocument ID/SizeRevisionRevision Date
NCP1397GANGEVB Bill of Materials ROHS CompliantNCP1397GANGEVB_BOM_ROHS.pdf (163kB)2
NCP1397GANGEVB Gerber Layout Files (Zip Format)NCP1397GANGEVB_GERBER.zip (102kB)0
NCP1397GANGEVB SchematicNCP1397GANGEVB_SCHEMATIC.pdf (255kB)0
NCP1397GANGEVB Test ProcedureNCP1397GANGEVB_TEST_PROCEDURE.pdf (111kB)0
Application Notes (4)
Document TitleDocument ID/SizeRevisionRevision Date
A Simple DC SPICE Model for the LLC ConverterAND8255/D (474.0kB)2
Implementing a 12 V /240 W Power Supply with the NCP4303B, NCP1605 and NCP1397BAND8460/D (2138.0kB)2May, 2010
Stability Analysis in Multiple Loop SystemsAND8327/D (213.0kB)0
Understanding the LLC Structure in Resonant ApplicationsAND8311/D (416.0kB)0
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
High Performance Resonant Mode Controller with Integrated High-Voltage DriversNCP1397/D (421kB)6Oct, 2015
Evaluation/Development Tool Information
ProductStatusComplianceShort Description
NCP1397GANGEVBActivePb-freeHigh Performance Integrated High Voltage Driver Evaluation Board
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NCP1397ADR2GActivePb-free Halide freeSOIC-16751AM1Tape and Reel2500$0.48
NCP1397BDR2GActivePb-free Halide freeSOIC-16751AM1Tape and Reel2500$0.48
NCV1397ADR2GActiveAEC Qualified PPAP Capable Pb-free Halide freeSOIC-16751AM1Tape and Reel2500$0.7333
NCV1397BDR2GActiveAEC Qualified PPAP Capable Pb-free Halide freeSOIC-16751AM1Tape and Reel2500$0.7333
Specifications
ProductTopologyControl Modefsw Typ (kHz)Stand-by ModeUVLO (V)Short Circuit ProtectionLatchSoft StartVCC Max (V)Drive Cap. (mA)
NCP1397ADR2GHalf-BridgeCurrent/Voltage ModeUp to 500No9.5/10.5YesYesYes20500 / 1000
NCP1397BDR2GHalf-BridgeCurrent/Voltage ModeUp to 500No9.5/10.5YesYesYes20500 / 1000
NCV1397ADR2GHalf-BridgeCurrent/Voltage ModeUp to 500No9.5/10.5YesYesYes20500 / 1000
NCV1397BDR2GHalf-BridgeCurrent/Voltage ModeUp to 500No9.5/10.5YesYesYes20500 / 1000
High Performance Resonant Mode Controller with Integrated High-Voltage Drivers (421kB) NCP1397
LLC Circuits Design Worksheet NCP1910
NCP1397GANGEVB BOM ROHS NCP1397GANGEVB
NCP1397GANGEVB GERBER NCP1397GANGEVB
NCP1397GANGEVB SCHEMATIC NCP1397GANGEVB
NCP1397GANGEVB TEST PROCEDURE NCP1397GANGEVB
A Simple DC SPICE Model for the LLC Converter NCP1910
Implementing a 12 V /240 W Power Supply with the NCP4303B, NCP1605 and NCP1397B NCP1397
Stability Analysis in Multiple Loop Systems NCP1055
Understanding the LLC Structure in Resonant Applications NCP1910
SOIC-16 NB, Less Pin 13 NCP1398
NCP1397