Integrated power management solution based on FPGA and processor
The solution integrates multiple switching regulators, LDOs, and supervisor/watchdog timers on a single-chip IC
As the size of machine vision systems continues to shrink and the processing power of these systems continues to grow at a rapid rate, power management is becoming an important design factor for new machine vision systems. Currently, the latest FPGAs and processors for machine vision systems have a common requirement that multiple power rails are required. Power supplies commonly used for these FPGAs and processors require the use of multiple discrete switching regulators and LDOs.
In these discrete power supply designs, switching regulators are used to power high current core rails, and LDOs are used to power noise-sensitive, low-current clocks. More new integrated power solutions are being developed to meet smaller PCB area requirements, such as in machine vision systems. These new multi-channel integrated power management solutions integrate multiple switching regulators, LDOs, and supervisor/watchdog timers in a single-chip IC, dramatically reducing the typical multi-rail power solution for FPGAs. Size, cost and design time. As customer design cycles continue to shrink, single-supply ICs that generate multiple rails become more and more important, they are extremely flexible and easy to configure, so a single multi-channel IC can be quickly used in different applications or configurations, easily reducing Design time and time to market for new products. (see picture 1.)
The advantages of using uPMU to power FPGAs and processors are:
Cost-effective solution Small board footprint for easy timing control and voltage tracking Low noise, switch out of phase operation, reduced EMI
No need to use an external sync signal Easy to use, no need for too much power expertise Less components, higher reliability
Let's take a closer look at the four key advantages:
Solution size
Integrating multiple switching buck regulators, LDOs, power monitors, and watchdog functions into a single-chip solution dramatically reduces the PCB area of ​​multi-rail power solutions. A good example is the ADP5034, a dual buck regulator that integrates two 300 mA LDOs in a 24-lead LFCSP package. The ADP5034 integrates multiple switching regulators and LDOs in a single package, enabling a new generation of highly integrated multiple output regulators with minimal board space. The integrated switching regulator operates at a 3MHz switching frequency, allowing the use of very small chip inductors, greatly reducing the overall size of the solution. The overall size of the ADP5034 solution is only 72 mm2.
Easy to use
New product design cycles are getting shorter and shorter, and new power management solutions that are easy to design in the initial phase and that can be easily modified in the future according to design requirements are increasingly important to ensure new product release dates. The ADP5041 multi-output regulator provides a buck regulator and two 300mA LDOs with integrated power-on reset and watchdog timers to support high reliability processor-based systems. All of the ADP5041's integrated regulators have dedicated enable pins that give power supply designers great flexibility to enable or disable each regulator through hardware without any software overhead and to easily control three power rails Power-on timing. The output voltage of each regulator is set by an external resistor divider. Power supply designers can also use this to quickly and easily change the output voltage to meet the needs of different output voltage combinations for prototyping and new design reuse. The integrated regulators of the multi-output regulators have separate enable pins and resistor-programmable output voltages to help reduce power supply design complexity, shorten design time, and speed new product launches.
Fewer components and higher reliability
Figure 2 shows an example layout of a power solution consisting of a discrete dual buck regulator and a dual 300 mA LDO, and an example layout of a single-chip ADP5034 multiple output regulator. The discrete power solution requires 22 devices to be mounted on a 97mm2 PCB area, while the ADP5034 solution requires only 19 devices to be mounted on a 72mm2 PCB area. The ADP5034 solution requires a 35% reduction in PCB area and saves on the cost of mounting three devices. If you consider purchasing, warehousing, placement, and inspection costs, the cost of mounting a device on a PCB can be as high as 3 cents. The greater the number of devices mounted on the PCB, the greater the risk of producing defective products; by reducing the number of devices mounted on the PCB, the production cost can be reduced and the reliability of the production process can be improved.
Low noise solution
The dedicated MODE pin on the switching buck regulator can be conveniently controlled through the microprocessor GPIO port, forcing the switching regulator to operate in a constant PWM mode. At light loads, switching regulators operating in burst mode can generate wideband noise, which is necessary if the receiving circuit (transceiver, ADC, audio) is sensitive to wideband noise. The LDOs integrated into these multiple output regulators have an input voltage range of 1.7 V to 5.5 V. When used with a buck regulator, the low input voltage allows the LDO to provide extremely efficient low noise output. For example, a buck regulator can be used as a pre-regulator to achieve a high efficiency voltage drop from a 5V input to a 1.8V output, and then apply this 1.8V to the input of the LDO to provide a very low noise 1.2V. The output voltage is used to supply very sensitive analog circuits from the 5V initial input with very high efficiency. The integrated LDO has high PSRR (even with low Vin-Vout margin) and low internal noise, and crosstalk between regulators has been minimized. All of these features are important when powering noise-sensitive circuits.
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Chassis weight: 4.5kg
Weight of chassis with fan: 5.5kg
Size:500*400*180mm
Multi graphics card case custom case
Motherboard bit: compatible with standard ATX motherboard
Hard disk bit: a 3.5-inch hard disk or a 2.5-inch hard disk
Power bit: ATX power installation size
Standard fan: 4 sets of 12038 fans,
Graphics card bit: supports up to 5 330mm long graphics cards
Chassis material: 1.0 mm cold plate full baking paint to prevent rust, anti-static effect!
tips: chassis products are bulky, heavy weight, and the express freight is very expensive. Buyers should consider buying them carefully to avoid unnecessary loss caused by return. If you don't understand, please communicate with customer service.
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