NCP12510B65GEVB 65 W Notebook Off-line Adaptor with NCP12510 Evaluation Board User Manua
This evaluation board user manual describes the NCP12510B65GEVB board and its main parameters, i.e. efficiency, no-load input power consumption, EMI signature, transient responses, etc.
The evolution board is a flyback topology converter which provides output voltage 19 Vdc for output nominal current up to 3.5 A. therefore, the nominal output power is 65 W. Input voltage range is recommended from 90 Vac up to 265 Vac.
The switching of the converter is ensured by the NCP12510 一 fixed-frequency current-mode PWM controller switching at 65 kHz. The frequency foldback down to 26 kHz is implemented for achievement the high efficiency during light load conditions. The skip cycle and low supply current of the controller ensures the very low no-load input power consumption (standby power) of the converter, which is less than 40 mW without indication LED on output.
The controller is also equipped with a lot of protections. The standard protection is over-current protection which disables the switching after fault timer is elapsed・ This protection is activated when over-current or short-circuit conditions appear. In the case of damage of some component important for regulation, the controller is equipped with fast over-voltage protection on OPP pin (pin 3) and VCC pin (pin 5). The controller protects the whole converter against overheating by an NTC thermistor connected to the OPP pin (pin 3). The protection against high power capability of converter at high line is over-power protection・ It is based on reducing the internal peak current setpoint depending on input voltage value.
■Key Features:
●Excellent Standby Power Consumption
●High Efficiency
●High Robustness and High ESD Capabilities
●Wide Input Voltage Range (90-265 Vac)
●Low EMI Emissions
●Over-Current Protection
●Over -Temperature Protection
●Over -Voltage Protection
●Over -Power Protection
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Evaluation Board User's Manual |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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August, 2016 |
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Rev. 0 |
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EVBUM2485/D |
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766 KB |
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