TC7660SEOA713 Integrated Circuits (ICs)

Voltage - Output (Min/Fixed):	-Vin, 2Vin
Base Part Number:	TC7660S
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	10kHz ~ 45kHz
Current - Output:	20mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	12V
Voltage - Input (Min):	1.5V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Charge Pump
Output Configuration:	Positive or Negative
Function:	Ratiometric
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

TC7660SEOA713 is an advanced DC DC switching regulator that provides a variety of features for power management in many advanced electronic devices. It features a high operating frequency, excellent power efficiency, adjustable output voltage and current, soft-start/stop circuitry, over-voltage crowbar protection and comprehensive system protection features. With its low external component count, this automotive-grade DC DC regulator is cost-effective and designed for robust and reliable operation in a harsh environment.

Application Field

The TC7660SEOA713 DC DC switching regulator is ideal for a wide range of automotive applications and power management requirements, such as automotive lighting systems, DC fans, automotive sensors, motors and displays. It can also be used in many industrial and consumer products, such as personal computers, networking equipment, telecom boards, server systems and audio equipment. With its high frequency and power efficiency, it can greatly reduce system power losses and improve power management efficiency.

Working Principle

The TC7660SEOA713 is a flyback DC DC switching regulator, which converts a given input voltage into a regulated output voltage of adjustable amplitude and current. A high-switching frequency operation is enabled through the use of embedded MOSFET and current-mode control, allowing for excellent power efficiency and adaptive control to changing loads. The external components required merely consist of a coil, low-ESR capacitor and a few resistors; the entire setup can be designed with a few components in a minimal board space.The switching regulator operates in a constant-frequency mode and is capable of efficiently handling up to 0.5A load. Regulation accuracy is typically within ±2%. In addition, its soft-start circuitry provides a smooth power on/off ramping effect, reducing the high inrush current found in many other switching regulators.A regulation loop is in place to ensure the peak current of a set amount. If the primary current rises above that set value, the regulator will trigger an overvoltage protection circuitry (OVP) to minimize the AC line voltage. This also reduces any abnormal supply noise, allowing for greater stability in the system.

Conclusion

The TC7660SEOA713 DC DC switching regulator is an ideal solution for automotive, industrial and consumer devices. It provides excellent power efficiency and a low number of external components, making it highly cost-effective and robust. Its wide range of features, such as overvoltage protection, current peak loop and soft-start, further add to its appeal.

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