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NCP1032: Integrated DC-DC Converter, PWM, 3.0W

Datasheet: Low Power PWM Controller with On-Chip Power Switch
Rev. 3 (625kB)
Product Overview
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The NCP1032x is a miniature high-voltage monolithic switching converters with on-chip Power Switch and Startup Circuits. It incorporates in a single IC all the active power, control logic and protection circuitry required to implement, with minimal external components, several switching regulator applications, such as a secondary side bias supply or a low power dc-dc converter. This converter is ideally suited for 24V, 48V telecom and medical isolated power supplies applications. The NCP1032x can be configured in any single-ended topology such as forward or flyback converter. The NCP1032x is targeted for applications requiring up to 3W.

The internal error amplifier allows the NCP1032x to be easily configured for secondary or primary side regulation operation in isolated and non-isolated configurations. The fixed frequency oscillator is optimized for operation up to 1MHz and is capable of external frequency synchronization, providing additional design flexibility. In addition, the NCP1032x incorporates undervoltage and overvoltage line detectors, programmable cycle-by-cycle current limit, internal soft start and thermal shutdown to protect the controller under fault conditions.
Features   Benefits
     
  • On Chip High 200 V Power Switch Circuit and Startup Circuit
 
  • No external circuitry needed for high voltage start up
  • Internal Startup Regulator with Auxiliary Winding Override
 
  • Smaller PCB footprint
  • Programmable Oscillator Frequency, Operation up to 1 MHz
 
  • Optimization of switching frequency for size and efficiency
  • External Frequency Synchronization Capability
 
  • Optimization of switching frequency for size and efficiency
  • Frequency Fold-down Under Fault Conditions
 
  • System level protection
  • Trimmed ± 1% Internal Reference
 
  • Output voltage accuracy
  • Programmable Cycle by Cycle Current Limit
 
  • System level protection
  • Line Under and Over Voltage Protection
 
  • System level protection
  • Over Temperature Protection
 
  • System level protection
  • Internal Soft Start
   
  • Active Leading Edge Blanking Circuit
   
Applications   End Products
  • Stand Alone Low Power DC-DC Converter
  • Secondary Side Bias Supply for Isolated DC-DC Converters
  • Low Power Bias Supply
  • Low Power Boost Converter
  • Medical Isolated Power Supplies
  • POE (Power Over Ethernet)/PD. Refer to Application Note AND8247.
  • Bias Supply for Telecom Systems. Refer to Application Note AND8119/D.
 
  • Microinverter for solar systems
  • High voltage Power Supplies
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCP1032BGEVB Active
Pb-free
Integrated DC-DC Converter, PWM, 3.0W Evaluation Board
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCP1032AMNTXG Active
Pb-free
Halide free
NCP1032, OV enabled WDFN-8 511BH 1 260 Tape and Reel 3000 $0.8
NCP1032BMNTXG Active
Pb-free
Halide free
NCP1032 WDFN-8 511BH 1 260 Tape and Reel 3000 $0.8
Market Leadtime (weeks) : 13 to 16
Market Leadtime (weeks) : 2 to 4

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
VCC Min (V)
VCC Max (V)
VO Typ (V)
IO Typ (A)
Efficiency (%)
fSW Typ (kHz)
Package Type
NCP1032AMNTXG  
 $0.8 
Pb
H
 Active   
Flyback
Voltage Mode
8
200
12
80
1000
WDFN-8
NCP1032BMNTXG  
 $0.8 
Pb
H
 Active   
Flyback
Voltage Mode
8
200
12
80
1000
WDFN-8
Case Outlines
511BH   
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Featured Video
Integrated DC-DC Converter, PWM, 3.0W Evaluation Board - NCP1032BGEVB Test Procedure
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