FSB127AHN

FSB127AHN Datasheet

FSB127AH mWSaver Fairchild Power Switch FPS

Part	Datasheet
FSB127AHN	FSB127AHN (pdf)

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Is Now Part of To learn more about ON Semiconductor, please visit our website at ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. FSB127AH mWSaver Fairchild Power Switch FPS April 2014 FSB127AH mWSaver Fairchild Power Switch FPS mWSaver Technology • Achieves Low No-Load Power Consumption: < 40 mW at 230 VAC EMI Filter Loss Included • Meets 2013 ErP Standby Power Regulation < W Consumption with W Load for ATX Power and LCD TV Power • Eliminates X-Cap Discharge Resistor Loss with Technology • Linearly Decreases Switching Frequency at Light-Load Condition and Advanced Burst Mode Operation at No-Load Condition • 700 V High-Voltage JFET Startup Circuit Eliminates Startup Resistor Loss Highly Integrated with Rich Features • Internal Avalanche-Rugged 700 V SenseFET • Built-in 5 ms Soft-Start • Peak-Current-Mode Control • Cycle-by-Cycle Current Limiting • Leading-Edge Blanking LEB • Synchronized Slope Compensation • Proprietary Asynchronous Jitter to Reduce EMI Advanced Protection • Internal Overload / Open-Loop Protection OLP • VDD Under-Voltage Lockout UVLO • VDD Over-Voltage Protection OVP • Constant Power Limit Full AC Input Range • Internal Auto-Restart Circuit OLP, VDD OVP, OTP • Internal OTP Sensor with Hysteresis • Adjustable Peak Current Limit The FSB127AH next-generation, Green-Mode, Fairchild Power Switch FPS incorporates Fairchild’s innovative mWSaver technology, which dramatically reduces standby and no-load power consumption, enabling conformance to all worldwide Standby Mode efficiency guidelines. It integrates an advanced currentmode Pulse Width Modulator PWM and an avalancherugged 700 V SenseFET in a single package, allowing auxiliary power designs with higher standby energy efficiency, reduced size, improved reliability, and lower system cost than previous solutions. Fairchild Semiconductor’s mWSaver technology offers best-in-class minimum no-load and light-load power consumption. An innovative method, one of the five proprietary mWSaver technologies, minimizes losses in the EMI filter stage by eliminating the X-Cap discharge resistors while still meeting IEC61010-1 safety requirements. mWSaver Green Mode gradually decreases switching frequency as load decreases to minimize switching losses. A new proprietary asynchronous jitter decreases EMI emission. Built-in synchronized slope compensation allows stable peak-current-mode control over a wide range of input voltage. The proprietary internal line compensation ensures constant-output power limit over the entire universal line voltage range. Requiring minimum external components, FSB127AH provides a solid platform for cost-effective flyback converter design with low standby power consumption. General-purpose switched-mode power supplies SMPS and flyback power converters, including: • Auxiliary Power Supply for PC, Server, LCD TV, and Game Console • SMPS for VCR, SVR, STB, DVD, and DVCD Player, Printer, Facsimile, and Scanner • General Adapter • LCD Monitor Power / Open-Frame SMPS Ordering Information SenseFET Operating Temperature Range FSB127AHN 2 A 700 V -40°C to +105°C Package Packing Method 8-Pin, Dual Inline Package DIP Tube FSB127AH mWSaver Fairchild Power Switch FPS Application Diagram Figure Typical Flyback Application Output Power Table 1 Product 230 VAC ±15% 2 Adapter 3 Open-Frame 4 85-265 VAC Adapter 3 Open-Frame 4 FSB127AH Notes The maximum output power can be limited by junction temperature. 230 VAC or 100/115 VAC with voltage doublers. Typical continuous power in a non-ventilated enclosed adapter, with sufficient drain pattern of printed circuit board PCB as a heat sink, at 50C ambient. Maximum practical continuous power in an open-frame, design with sufficient drain pattern of printed circuit board PCB as a heat sink, at 50C ambient. Block Diagram Figure Internal Block Diagram FSB127AH mWSaver Fairchild Power Switch FPS Pin Configuration F Fairchild Logo Z Plant Code X 1-Digit Year Code Y 1-Digit Week Code TT 2-Digit Die Run Code T Package Type N DIP M Manufacture Flow Code Figure Pin Configuration Pin Definitions Pin # 1 2 3 4 5 6 7 8 Name GND VDD FB IPK Ground. This pin internally connects to the SenseFET source and the signal ground of the PWM controller. Supply Voltage of the IC. Typically the hold-up capacitor connects from this pin to ground. A rectifier diode in series with the transformer auxiliary winding connects to this pin to supply bias during normal operation. Feedback. The signal from the external compensation circuit connects to this pin. The PWM duty cycle is determined by comparing the signal on this pin and the internal current-sense signal. Adjust Peak Current. Typically a resistor connects from this pin to the GND pin to program the current-limit level. The internal current source 50 µA introduces voltage drop across the resistor, which determines the current-limit level of pulse-by-pulse current limit. Startup. Typically, resistors in series with diodes from the AC line connect to this pin to supply internal bias and to charge the external capacitor connected between the VDD pin and the GND pin during startup. This pin is also used to sense the line voltage for brownout protection and AC line disconnection detection. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT Literature Distribution Center for ON Semiconductor 19521 E. 32nd Pkwy, Aurora, Colorado 80011 USA Phone 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: Semiconductor Components Industries, LLC N. American Technical Support 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support Phone 421 33 790 2910 Japan Customer Focus Center Phone 81−3−5817−1050 ON Semiconductor Website Order Literature For additional information, please contact your local Sales Representative

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Is Now Part of

To learn more about ON Semiconductor, please visit our website at

ON Semiconductor and the ON Semiconductor logo are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.

FSB127AH mWSaver Fairchild Power Switch FPS

April 2014

FSB127AH mWSaver Fairchild Power Switch FPS
mWSaver Technology
• Achieves Low No-Load Power Consumption:
< 40 mW at 230 VAC EMI Filter Loss Included
• Meets 2013 ErP Standby Power Regulation
< W Consumption with W Load for ATX Power and LCD TV Power
• Eliminates X-Cap Discharge Resistor Loss with

Technology
• Linearly Decreases Switching Frequency at

Light-Load Condition and Advanced Burst Mode Operation at No-Load Condition
• 700 V High-Voltage JFET Startup Circuit

Eliminates Startup Resistor Loss

Highly Integrated with Rich Features
• Internal Avalanche-Rugged 700 V SenseFET
• Built-in 5 ms Soft-Start
• Peak-Current-Mode Control
• Cycle-by-Cycle Current Limiting
• Leading-Edge Blanking LEB
• Synchronized Slope Compensation
• Proprietary Asynchronous Jitter to Reduce EMI

Advanced Protection
• Internal Overload / Open-Loop Protection OLP
• VDD Under-Voltage Lockout UVLO
• VDD Over-Voltage Protection OVP
• Constant Power Limit Full AC Input Range
• Internal Auto-Restart Circuit OLP, VDD OVP, OTP
• Internal OTP Sensor with Hysteresis
• Adjustable Peak Current Limit

The FSB127AH next-generation, Green-Mode, Fairchild Power Switch FPS incorporates Fairchild’s innovative mWSaver technology, which dramatically reduces standby and no-load power consumption, enabling conformance to all worldwide Standby Mode efficiency guidelines. It integrates an advanced currentmode Pulse Width Modulator PWM and an avalancherugged 700 V SenseFET in a single package, allowing auxiliary power designs with higher standby energy efficiency, reduced size, improved reliability, and lower system cost than previous solutions.

Fairchild Semiconductor’s mWSaver technology offers best-in-class minimum no-load and light-load power consumption. An innovative method, one of the five proprietary mWSaver technologies, minimizes losses in the EMI filter stage by eliminating the X-Cap discharge resistors while still meeting IEC61010-1 safety requirements. mWSaver Green Mode gradually decreases switching frequency as load decreases to minimize switching losses.

A new proprietary asynchronous jitter decreases EMI emission. Built-in synchronized slope compensation allows stable peak-current-mode control over a wide range of input voltage. The proprietary internal line compensation ensures constant-output power limit over the entire universal line voltage range.

Requiring minimum external components, FSB127AH provides a solid platform for cost-effective flyback converter design with low standby power consumption.

General-purpose switched-mode power supplies SMPS and flyback power converters, including:
• Auxiliary Power Supply for PC, Server, LCD TV,
and Game Console
• SMPS for VCR, SVR, STB, DVD, and DVCD

Player, Printer, Facsimile, and Scanner
• General Adapter
• LCD Monitor Power / Open-Frame SMPS
Ordering Information

SenseFET

Operating Temperature Range

FSB127AHN 2 A 700 V
-40°C to +105°C

Package

Packing Method
8-Pin, Dual Inline Package DIP

Tube

FSB127AH mWSaver Fairchild Power Switch FPS

Application Diagram

Figure Typical Flyback Application

Output Power Table 1

Product
230 VAC ±15% 2

Adapter 3

Open-Frame 4
85-265 VAC

Adapter 3

Open-Frame 4

FSB127AH

Notes The maximum output power can be limited by junction temperature. 230 VAC or 100/115 VAC with voltage doublers. Typical continuous power in a non-ventilated enclosed adapter, with sufficient drain pattern of printed circuit
board PCB as a heat sink, at 50C ambient. Maximum practical continuous power in an open-frame, design with sufficient drain pattern of printed circuit
board PCB as a heat sink, at 50C ambient.

Block Diagram

Figure Internal Block Diagram

FSB127AH mWSaver Fairchild Power Switch FPS

Pin Configuration

F Fairchild Logo Z Plant Code X 1-Digit Year Code Y 1-Digit Week Code TT 2-Digit Die Run Code T Package Type N DIP M Manufacture Flow Code

Figure Pin Configuration

Pin Definitions

Pin #
1 2 3 4
5 6 7 8

Name

GND VDD FB IPK

Ground. This pin internally connects to the SenseFET source and the signal ground of the PWM controller.

Supply Voltage of the IC. Typically the hold-up capacitor connects from this pin to ground. A rectifier diode in series with the transformer auxiliary winding connects to this pin to supply bias during normal operation.

Feedback. The signal from the external compensation circuit connects to this pin. The PWM duty cycle is determined by comparing the signal on this pin and the internal current-sense signal.

Adjust Peak Current. Typically a resistor connects from this pin to the GND pin to program the current-limit level. The internal current source 50 µA introduces voltage drop across the resistor, which determines the current-limit level of pulse-by-pulse current limit.

Startup. Typically, resistors in series with diodes from the AC line connect to this pin to supply internal bias and to charge the external capacitor connected between the VDD pin and the GND pin during startup. This pin is also used to sense the line voltage for brownout protection and AC line disconnection detection.
PUBLICATION ORDERING INFORMATION

LITERATURE FULFILLMENT Literature Distribution Center for ON Semiconductor 19521 E. 32nd Pkwy, Aurora, Colorado 80011 USA Phone 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email:

Semiconductor Components Industries, LLC

N. American Technical Support 800−282−9855 Toll Free USA/Canada

Europe, Middle East and Africa Technical Support Phone 421 33 790 2910

Japan Customer Focus Center Phone 81−3−5817−1050

ON Semiconductor Website Order Literature For additional information, please contact your local Sales Representative

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived FSB127AHN Datasheet file may be downloaded here without warranties.

Datasheet ID: FSB127AHN 515494