NCP1032: Integrated DC-DC Converter, PWM, 3.0W _ BDTIC a Leading Distributor in China

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

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

On Chip High 200 V Power Switch Circuit and Startup Circuit
Internal Startup Regulator with Auxiliary Winding Override
Programmable Oscillator Frequency, Operation up to 1 MHz
External Frequency Synchronization Capability
Frequency Fold-down Under Fault Conditions
Trimmed ± 1% Internal Reference
Programmable Cycle by Cycle Current Limit
Line Under and Over Voltage Protection
Over Temperature Protection
Internal Soft Start
Active Leading Edge Blanking Circuit

Benefits

No external circuitry needed for high voltage start up
Smaller PCB footprint
Optimization of switching frequency for size and efficiency
Optimization of switching frequency for size and efficiency
System level protection
Output voltage accuracy
System level protection
System level protection
System level protection

Applications

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.

End Products

Microinverter for solar systems
High voltage Power Supplies

Data Sheets (1)

Document Title	Document ID/Size	Revision	Revision Date
Low Power PWM Controller with On-Chip Power Switch	NCP1032/D (527kB)	3	Oct, 2016

Package Drawings (1)

Document Title	Document ID/Size	Revision
WDFN8 3x3, 0.65P	511BH (61.2kB)	O

Evaluation Board Documents (4)

Document Title	Document ID/Size	Revision	Revision Date
NCP1032BGEVB Bill Of Materials ROHS Compliant	NCP1032BGEVB_BOM_ROHS.pdf (124kB)	0
NCP1032BGEVB Gerber Layout Files (Zip Format)	NCP1032BGEVB_GERBER.zip (59kB)	0
NCP1032BGEVB Schematic	NCP1032BGEVB_SCHEMATIC.pdf (196kB)	0
NCP1032BGEVB Test Procedure	NCP1032BGEVB_TEST_PROCEDURE.pdf (338kB)	0