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NCP1252

  

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ON-Semiconductor
ON-SemiconductorON-Semiconductor
NCP1252 Current Mode PWM Controller for Forward and Flyback Applications


other parts : NCP1252ADR2G  NCP1252APG  NCP1252BDR2G  NCP1252CDR2G  
NCP1252 PDF
ETC
ETCETC
NCP1252 Current Mode PWM Controller for Forward and Flyback Applications

[ON-Semiconductor]

The NCP1252 controller offers everything needed to build cost−effective and reliable ac−dc switching supplies dedicated to ATX power supplies. Thanks to the use of an internally fixed timer, NCP1252 detects an output overload without relying on the auxiliary Vcc. A Brown−Out input offers protection against low input voltages and improves the converter safety. Finally a SOIC8 package saves PCB space and represents a solution of choice in cost sensitive project.

Features
• Peak Current Mode Control
• Adjustable Switching Frequency up to 500 kHz
• Jittering Frequency ±5% of the Switching Frequency
• Latched Primary Over Current Protection with 10 ms Fixed Delay
• Delayed Operation Upon Start−up via an Internal Fixed Timer
• Adjustable Soft−start Timer
• Auto−recovery Brown−Out Detection
• UC384X−like UVLO Thresholds
• Vcc Range from 9 V to 28 V with Auto−recovery UVLO
• Internal 160 ns Leading Edge Blanking
• Adjustable Internal Ramp Compensation
• +500 mA / –800 mA Source / Sink Capability
• Maximum 50% Duty Cycle: A Version
• Maximum 80% Duty Cycle: B Version
• Maximum 65% Duty Cycle: C Version
• Ready for Updated No Load Regulation Specifications
• SOIC−8 and PDIP−8 Packages
• These are Pb−Free Devices

Typical Applications
• Power Supplies for PC Silver Boxes, Games Adapter...
• Flyback and Forward Converter

 


other parts : NCP1252ADR2G  NCP1252APG  NCP1252BDR2G  NCP1252CDR2G  
NCP1252 PDF
ETC
ETCETC
NCP1252APG Current Mode PWM Controller for Forward and Flyback Applications

[ON-Semiconductor]

The NCP1252 controller offers everything needed to build cost−effective and reliable ac−dc switching supplies dedicated to ATX power supplies. Thanks to the use of an internally fixed timer, NCP1252 detects an output overload without relying on the auxiliary Vcc. A Brown−Out input offers protection against low input voltages and improves the converter safety. Finally a SOIC8 package saves PCB space and represents a solution of choice in cost sensitive project.

Features
• Peak Current Mode Control
• Adjustable Switching Frequency up to 500 kHz
• Jittering Frequency ±5% of the Switching Frequency
• Latched Primary Over Current Protection with 10 ms Fixed Delay
• Delayed Operation Upon Start−up via an Internal Fixed Timer
• Adjustable Soft−start Timer
• Auto−recovery Brown−Out Detection
• UC384X−like UVLO Thresholds
• Vcc Range from 9 V to 28 V with Auto−recovery UVLO
• Internal 160 ns Leading Edge Blanking
• Adjustable Internal Ramp Compensation
• +500 mA / –800 mA Source / Sink Capability
• Maximum 50% Duty Cycle: A Version
• Maximum 80% Duty Cycle: B Version
• Maximum 65% Duty Cycle: C Version
• Ready for Updated No Load Regulation Specifications
• SOIC−8 and PDIP−8 Packages
• These are Pb−Free Devices

Typical Applications
• Power Supplies for PC Silver Boxes, Games Adapter...
• Flyback and Forward Converter

 


other parts : NCP1252  NCP1252ADR2G  NCP1252BDR2G  NCP1252CDR2G  
NCP1252APG PDF
ON-Semiconductor
ON-SemiconductorON-Semiconductor
NCP1252APG Current Mode PWM Controller for Forward and Flyback Applications

The NCP1252 controller offers everything needed to build cost−effective and reliable ac−dc switching supplies dedicated to ATX power supplies. Thanks to the use of an internally fixed timer, NCP1252 detects an output overload without relying on the auxiliary Vcc. A Brown−Out input offers protection against low input voltages and improves the converter safety. Finally a SOIC8 package saves PCB space and represents a solution of choice in cost sensitive project.

Features
• Peak Current Mode Control
• Adjustable Switching Frequency up to 500 kHz
• Jittering Frequency ±5% of the Switching Frequency
• Latched Primary Over Current Protection with 10 ms Fixed Delay
• Delayed Operation Upon Start−up via an Internal Fixed Timer
• Adjustable Soft−start Timer
• Auto−recovery Brown−Out Detection
• UC384X−like UVLO Thresholds
• Vcc Range from 9 V to 28 V with Auto−recovery UVLO
• Internal 160 ns Leading Edge Blanking
• Adjustable Internal Ramp Compensation
• +500 mA / –800 mA Source / Sink Capability
• Maximum 50% Duty Cycle: A Version
• Maximum 80% Duty Cycle: B Version
• Maximum 65% Duty Cycle: C Version
• Ready for Updated No Load Regulation Specifications
• SOIC−8 and PDIP−8 Packages
• These are Pb−Free Devices

Typical Applications
• Power Supplies for PC Silver Boxes, Games Adapter...
• Flyback and Forward Converter

 


other parts : NCP1252  NCP1252ADR2G  NCP1252BDR2G  NCP1252CDR2G  
NCP1252APG PDF
ETC
ETCETC
NCP1252CDR2G Current Mode PWM Controller for Forward and Flyback Applications

[ON-Semiconductor]

The NCP1252 controller offers everything needed to build cost−effective and reliable ac−dc switching supplies dedicated to ATX power supplies. Thanks to the use of an internally fixed timer, NCP1252 detects an output overload without relying on the auxiliary Vcc. A Brown−Out input offers protection against low input voltages and improves the converter safety. Finally a SOIC8 package saves PCB space and represents a solution of choice in cost sensitive project.

Features
• Peak Current Mode Control
• Adjustable Switching Frequency up to 500 kHz
• Jittering Frequency ±5% of the Switching Frequency
• Latched Primary Over Current Protection with 10 ms Fixed Delay
• Delayed Operation Upon Start−up via an Internal Fixed Timer
• Adjustable Soft−start Timer
• Auto−recovery Brown−Out Detection
• UC384X−like UVLO Thresholds
• Vcc Range from 9 V to 28 V with Auto−recovery UVLO
• Internal 160 ns Leading Edge Blanking
• Adjustable Internal Ramp Compensation
• +500 mA / –800 mA Source / Sink Capability
• Maximum 50% Duty Cycle: A Version
• Maximum 80% Duty Cycle: B Version
• Maximum 65% Duty Cycle: C Version
• Ready for Updated No Load Regulation Specifications
• SOIC−8 and PDIP−8 Packages
• These are Pb−Free Devices

Typical Applications
• Power Supplies for PC Silver Boxes, Games Adapter...
• Flyback and Forward Converter

 


other parts : NCP1252  NCP1252ADR2G  NCP1252APG  NCP1252BDR2G  
NCP1252CDR2G PDF
ETC
ETCETC
NCP1252ADR2G Current Mode PWM Controller for Forward and Flyback Applications

[ON-Semiconductor]

The NCP1252 controller offers everything needed to build cost−effective and reliable ac−dc switching supplies dedicated to ATX power supplies. Thanks to the use of an internally fixed timer, NCP1252 detects an output overload without relying on the auxiliary Vcc. A Brown−Out input offers protection against low input voltages and improves the converter safety. Finally a SOIC8 package saves PCB space and represents a solution of choice in cost sensitive project.

Features
• Peak Current Mode Control
• Adjustable Switching Frequency up to 500 kHz
• Jittering Frequency ±5% of the Switching Frequency
• Latched Primary Over Current Protection with 10 ms Fixed Delay
• Delayed Operation Upon Start−up via an Internal Fixed Timer
• Adjustable Soft−start Timer
• Auto−recovery Brown−Out Detection
• UC384X−like UVLO Thresholds
• Vcc Range from 9 V to 28 V with Auto−recovery UVLO
• Internal 160 ns Leading Edge Blanking
• Adjustable Internal Ramp Compensation
• +500 mA / –800 mA Source / Sink Capability
• Maximum 50% Duty Cycle: A Version
• Maximum 80% Duty Cycle: B Version
• Maximum 65% Duty Cycle: C Version
• Ready for Updated No Load Regulation Specifications
• SOIC−8 and PDIP−8 Packages
• These are Pb−Free Devices

Typical Applications
• Power Supplies for PC Silver Boxes, Games Adapter...
• Flyback and Forward Converter

 


other parts : NCP1252  NCP1252APG  NCP1252BDR2G  NCP1252CDR2G  
NCP1252ADR2G PDF
ON-Semiconductor
ON-SemiconductorON-Semiconductor
NCP1252CDR2G Current Mode PWM Controller for Forward and Flyback Applications

The NCP1252 controller offers everything needed to build cost−effective and reliable ac−dc switching supplies dedicated to ATX power supplies. Thanks to the use of an internally fixed timer, NCP1252 detects an output overload without relying on the auxiliary Vcc. A Brown−Out input offers protection against low input voltages and improves the converter safety. Finally a SOIC8 package saves PCB space and represents a solution of choice in cost sensitive project.

Features
• Peak Current Mode Control
• Adjustable Switching Frequency up to 500 kHz
• Jittering Frequency ±5% of the Switching Frequency
• Latched Primary Over Current Protection with 10 ms Fixed Delay
• Delayed Operation Upon Start−up via an Internal Fixed Timer
• Adjustable Soft−start Timer
• Auto−recovery Brown−Out Detection
• UC384X−like UVLO Thresholds
• Vcc Range from 9 V to 28 V with Auto−recovery UVLO
• Internal 160 ns Leading Edge Blanking
• Adjustable Internal Ramp Compensation
• +500 mA / –800 mA Source / Sink Capability
• Maximum 50% Duty Cycle: A Version
• Maximum 80% Duty Cycle: B Version
• Maximum 65% Duty Cycle: C Version
• Ready for Updated No Load Regulation Specifications
• SOIC−8 and PDIP−8 Packages
• These are Pb−Free Devices

Typical Applications
• Power Supplies for PC Silver Boxes, Games Adapter...
• Flyback and Forward Converter

 


other parts : NCP1252  NCP1252ADR2G  NCP1252APG  NCP1252BDR2G  
NCP1252CDR2G PDF
ETC
ETCETC
NCP1252BDR2G Current Mode PWM Controller for Forward and Flyback Applications

[ON-Semiconductor]

The NCP1252 controller offers everything needed to build cost−effective and reliable ac−dc switching supplies dedicated to ATX power supplies. Thanks to the use of an internally fixed timer, NCP1252 detects an output overload without relying on the auxiliary Vcc. A Brown−Out input offers protection against low input voltages and improves the converter safety. Finally a SOIC8 package saves PCB space and represents a solution of choice in cost sensitive project.

Features
• Peak Current Mode Control
• Adjustable Switching Frequency up to 500 kHz
• Jittering Frequency ±5% of the Switching Frequency
• Latched Primary Over Current Protection with 10 ms Fixed Delay
• Delayed Operation Upon Start−up via an Internal Fixed Timer
• Adjustable Soft−start Timer
• Auto−recovery Brown−Out Detection
• UC384X−like UVLO Thresholds
• Vcc Range from 9 V to 28 V with Auto−recovery UVLO
• Internal 160 ns Leading Edge Blanking
• Adjustable Internal Ramp Compensation
• +500 mA / –800 mA Source / Sink Capability
• Maximum 50% Duty Cycle: A Version
• Maximum 80% Duty Cycle: B Version
• Maximum 65% Duty Cycle: C Version
• Ready for Updated No Load Regulation Specifications
• SOIC−8 and PDIP−8 Packages
• These are Pb−Free Devices

Typical Applications
• Power Supplies for PC Silver Boxes, Games Adapter...
• Flyback and Forward Converter

 


other parts : NCP1252  NCP1252ADR2G  NCP1252APG  NCP1252CDR2G  
NCP1252BDR2G PDF
ON-Semiconductor
ON-SemiconductorON-Semiconductor
NCP1252ADR2G Current Mode PWM Controller for Forward and Flyback Applications

The NCP1252 controller offers everything needed to build cost−effective and reliable ac−dc switching supplies dedicated to ATX power supplies. Thanks to the use of an internally fixed timer, NCP1252 detects an output overload without relying on the auxiliary Vcc. A Brown−Out input offers protection against low input voltages and improves the converter safety. Finally a SOIC8 package saves PCB space and represents a solution of choice in cost sensitive project.

Features
• Peak Current Mode Control
• Adjustable Switching Frequency up to 500 kHz
• Jittering Frequency ±5% of the Switching Frequency
• Latched Primary Over Current Protection with 10 ms Fixed Delay
• Delayed Operation Upon Start−up via an Internal Fixed Timer
• Adjustable Soft−start Timer
• Auto−recovery Brown−Out Detection
• UC384X−like UVLO Thresholds
• Vcc Range from 9 V to 28 V with Auto−recovery UVLO
• Internal 160 ns Leading Edge Blanking
• Adjustable Internal Ramp Compensation
• +500 mA / –800 mA Source / Sink Capability
• Maximum 50% Duty Cycle: A Version
• Maximum 80% Duty Cycle: B Version
• Maximum 65% Duty Cycle: C Version
• Ready for Updated No Load Regulation Specifications
• SOIC−8 and PDIP−8 Packages
• These are Pb−Free Devices

Typical Applications
• Power Supplies for PC Silver Boxes, Games Adapter...
• Flyback and Forward Converter

 


other parts : NCP1252  NCP1252APG  NCP1252BDR2G  NCP1252CDR2G  
NCP1252ADR2G PDF
ON-Semiconductor
ON-SemiconductorON-Semiconductor
NCP1252BDR2G Current Mode PWM Controller for Forward and Flyback Applications

The NCP1252 controller offers everything needed to build cost−effective and reliable ac−dc switching supplies dedicated to ATX power supplies. Thanks to the use of an internally fixed timer, NCP1252 detects an output overload without relying on the auxiliary Vcc. A Brown−Out input offers protection against low input voltages and improves the converter safety. Finally a SOIC8 package saves PCB space and represents a solution of choice in cost sensitive project.

Features
• Peak Current Mode Control
• Adjustable Switching Frequency up to 500 kHz
• Jittering Frequency ±5% of the Switching Frequency
• Latched Primary Over Current Protection with 10 ms Fixed Delay
• Delayed Operation Upon Start−up via an Internal Fixed Timer
• Adjustable Soft−start Timer
• Auto−recovery Brown−Out Detection
• UC384X−like UVLO Thresholds
• Vcc Range from 9 V to 28 V with Auto−recovery UVLO
• Internal 160 ns Leading Edge Blanking
• Adjustable Internal Ramp Compensation
• +500 mA / –800 mA Source / Sink Capability
• Maximum 50% Duty Cycle: A Version
• Maximum 80% Duty Cycle: B Version
• Maximum 65% Duty Cycle: C Version
• Ready for Updated No Load Regulation Specifications
• SOIC−8 and PDIP−8 Packages
• These are Pb−Free Devices

Typical Applications
• Power Supplies for PC Silver Boxes, Games Adapter...
• Flyback and Forward Converter

 


other parts : NCP1252  NCP1252ADR2G  NCP1252APG  NCP1252CDR2G  
NCP1252BDR2G PDF

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