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STRX6756
IC REG SW QUASI RES TO-3PF-7
STRX6756
IC REG SW QUASI RES TO-3PF-7
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About Shipping
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
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STRX6756 DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
General DescriptionsThe STR-X6700 series products are power ICs for quasi-resonant type switching power supplies, incorporating a power MOSFET and a controller IC, The product achieves high efficiency and low noise power supply systems by the quasi-resonant operation and the bottom-skip quasi-resonant operation.The STR-W6700 series products are the different package (TO-220F) versions.Features● Multi-Mode Control The operation mode switching with three steps according to load conditions achieves the optimal high efficiency and low noise power supply systems across the full load range. (The confirmation of product number is necessary because some functions are different in each product.) • In Standby (Under Standby Load Conditions): －UVLO Intermittent Oscillation by low output voltage --- Switched by Standby Signal, or －Auto Burst-Oscillation --- Switched Automatically • Under Low to Middle Load Conditions: Bottom-Skip Quasi-Resonant Operation (Bottom-Skip QR) • Under Middle to Rating (or Heavy) Load Conditions: Quasi-Resonant Operation (QR)● Current-Mode Control● Built-in PWM Oscillator The PWM operates with the minimum frequency of around 22 kHz, until the quasi-resonant signal becomes valid, reduces the stress on components at startup and load-shorted.● Soft-Start Function● Step-Drive Function, reducing switching noise● Built-in Maximum ON Time Limitation Circuit The function limits the maximum ON time of power MOSFET, during the transitions at low input voltage, power ON/OFF.● Input Compensation at Overcurrent The function reduces the distortion of overcurrent operation point to AC input voltage change by adding three components.● Built-in Avalanche Energy Guaranteed High-Voltage Power MOSFET● Various Protections Overcurrent Protection (OCP) -------------------------------Pulse-by-Pulse Overload Protection (OLP)-----------------------------------Latch Shutdown Overvoltage Protection (OVP)-------------------------------Latch ShutdownApplications Switching Power Supplies for Digital Consumer Equipment; LCD-TVs, PDP-TVs, CRT-TVs, etc., Home Appliances, OA Equipments, Industry Machines, Communication Devices, Others
Key Features
- Multi-Mode Control
- The operation mode switching with three steps according to load conditions achieves the optimal high efficiency and low noise power supply systems across the full load range. (The confirmation of product number is necessary because some functions are different in each product.)
- In Standby (Under Standby Load Conditions):
- －UVLO Intermittent Oscillation by low output voltage --- Switched by Standby Signal, or
- －Auto Burst-Oscillation --- Switched Automatically
- Under Low to Middle Load Conditions: Bottom-Skip Quasi-Resonant Operation (Bottom-Skip QR)
- Under Middle to Rating (or Heavy) Load Conditions: Quasi-Resonant Operation (QR)
- Current-Mode Control
- Built-in PWM Oscillator
- The PWM operates with the minimum frequency of around 22 kHz, until the quasi-resonant signal becomes valid, reduces the stress on components at startup and load-shorted.
- Soft-Start Function
- Step-Drive Function, reducing switching noise
- Built-in Maximum ON Time Limitation Circuit
- The function limits the maximum ON time of power MOSFET, during the transitions at low input voltage, power ON/OFF.
- Input Compensation at Overcurrent
- The function reduces the distortion of overcurrent operation point to AC input voltage change by adding three components.
- Built-in Avalanche Energy Guaranteed High-Voltage Power MOSFET
- Various Protections
- Overcurrent Protection (OCP) -------------------------------Pulse-by-Pulse
- Overload Protection (OLP)-----------------------------------Latch Shutdown
- Overvoltage Protection (OVP)-------------------------------Latch Shutdown
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Manufacturer | SK | Product Category ! | AC DC Converters, Offline Switchers |
FAQs
What is STRX6756?
The STRX6756 is a universal-input, 7-pin quasi-resonant IC designed for power supply applications. It is commonly used in off-line switch mode power supplies (SMPS) for various electronic devices such as televisions, monitors, and other consumer electronics.
How Does STRX6756 Work?
The STRX6756 operates by controlling the power supply through a quasi-resonant switching technique, which helps to improve efficiency and reduce electromagnetic interference. The IC integrates various protection features such as overvoltage protection, overcurrent protection, and thermal shutdown, ensuring reliable and safe operation of the power supply.
How Many Pins does STRX6756 have and What are the Functions of the Pinout Configuration?
The STRX6756 is housed in a 7-pin TO-3P package. The pinout configuration includes:
- VCC: Supply voltage input pin.
- FB: Feedback pin for control and regulation.
- DRIVE: Gate drive output pin for the power switch.
- GND: Ground pin for the IC.
- OV: Overvoltage protection pin.
- OP: Overpower protection pin.
- SD: Soft start and shut-down pin.
What are the Pros and Cons of STRX6756?
Pros:
- Quasi Resonant Operation: Improved efficiency and reduced EMI emissions.
- Integrated Protections: Overvoltage, overcurrent, and thermal shutdown protections enhance system reliability.
- Compact Package: 7-pin TO-3P package offers space efficiency.
- Universal Input: Suitable for a wide range of input voltages.
Cons:
- Specific Application: Designed for power supply implementations, may not be suitable for other applications.
- External Components: May require additional external components for specific power supply designs.
Are There Any Equivalents/Alternatives to STRX6756 for Recommendation?
Equivalents to the STRX6756 include the TEA1733 from NXP Semiconductors and the L6562A from STMicroelectronics.
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