NCV7707DQBR2G

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	Automotive
Current - Supply:	7.5mA
Voltage - Supply:	5.5 V ~ 28 V
Operating Temperature:	-40°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	36-BFSOP (0.295", 7.50mm Width) Exposed Pad
Supplier Device Package:	36-SSOP

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Introduction

The NCV7707DQBR2G is a specialized power management integrated circuit (PMIC). It is designed to manage demands on the power supply when faced with extreme voltage, current and temperature requirements. It offers two distinct operating modes, consuming ultra-low quiescent current in normal mode, and high efficiency in standby mode. This allows the NCV7707 to provide improved performance, reliability and cost savings over traditional design approaches.

Applications

The NCV7707 is well-suited for applications such as automotive power distribution and management, consumer electronics, medical equipment, and industrial systems, where a reliable, high-efficiency and low-cost PMIC solution is required. In automotive applications, the NCV7707 provides a robust and reliable system power architecture by providing simultaneous battery current and voltage monitoring, thus enabling ahead of time diagnosis of the battery’s health. This is especially useful in electric vehicle applications, where battery state-of-charge is critical for maximizing drive range and performance. The NCV7707 is also used in consumer electronics, such as tablets and 2-in-1 laptops. It provides improved system performance and stability, as well as improved battery life. Medical equipment, such as infusion pumps and sensors, can also use the NCV7707 for improved accuracy, higher performance and better diagnostics. Finally, the NCV7707’s capability to efficiently manage output currents in both normal and standby mode, make it suitable for industrial systems, including solar systems, LED lighting, and smart meters.

Working Principle

The NCV7707 is designed upon an advanced digital control loop architecture, which regulates one or two output channels. It combines multiple digital and analog control blocks, to allow for precise, flexible, and reliable power distribution and monitoring.The core of the NCV7707 is a digital control loop that is comprised of 3 main components. The first is a digital phase-locking loop (PLL), which synchronizes the internal clock frequency to an external clock, allowing the device to maintain precise control over the output voltage. The second component is a comparator, which uses feedback from a current-sense resistor to detect any differences between the actual output voltage and the desired voltage. The third component is a pulse-width modulation (PWM) generator, which outputs a PWM signal based on the comparison of the actual output voltage and the desired voltage.The PWM signal generated by the control loop is then used to adjust the on-time of two power MOSFET switches. When a switch is on, current flows from the input voltage source to the output; when it is off, no current flows. This allows the NCV7707 to regulate the output voltage to the desired value. In addition to the digital core, the NCV7707 also includes several analog blocks to improve performance and power distribution. These include a linear voltage regulator, a switch-serializer and diagnostics controller, a power MOSFET driver, a powertrain controller, and more. The combination of these blocks allows the NCV7707 to provide advanced power management features such as over-current protection, over-temperature protection, and fault detection.

Conclusion

The NCV7707DQBR2G is a specialized PMIC that offers precision voltage control and improved reliability for extreme voltage, current and temperature demands. It is well-suited for a variety of industrial and consumer applications, such as automotive, medical, and industrial systems. Its advanced digital control loop, coupled with its analog blocks, provide the necessary features and performance needed to power these applications.

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