1, the main power management chips are dual in-line chips, and some are surface mount package, of which HIP630x series chip is a classic power management chip, designed by the famous chip design company Intersil.
2, SGM4151, the chip is a high-efficiency portable device for battery-powered devices and low-power applications of the power management chip. < / p > < p > 3, common power management chip is HIP630IS653RT923ADP316KA7500, TL494, etc.
2, power management, voltage regulation. Power management: The chip power supply 1602b is a power management chip, which can convert the input power into the required voltage or current for use by other circuits or chips. Voltage regulation: The chip power supply chip 1602b has a voltage regulation function, which can adjust the output voltage according to the need to ensure the normal operation of the circuit.
3, the power management chip is inA chip in an electronic device system that performs the conversion, distribution, detection, and other functions of electrical energy management. It is mainly responsible for identifying the CPU power supply amplitude, generating the corresponding short moment wave, and promoting the power output of the back-end circuit. The current development trend of power ics is not limited to a single function, but to integrate various functions together, so power ics are now more known as power management ics, or power management units (PMU).
4, AC/DC conversion chip: TPS92411: This is an efficient and compact AC/DC conversion chip, suitable for a variety of power applications. itProvides a stable output voltage with excellent efficiency. LM5007: This is also a commonly used AC/DC conversion chip that features a wide input voltage range, high efficiency, and excellent thermal performance.
In the recent circuit, it is 12V input, 3V output, and 150m output currenta, requires low power consumption. Want to choose a power chip, please help recommend a model.
According to the output power (output voltage, output current), the peak current of the original side can be calculated, and then more than twice the value of the appropriate MOS, and then according to the voltage and current required by the G of the MOS, the switch chip with the corresponding output capability can be selected. Dc power load: PLC touch screen, relay coil, these count as the load of your DC power supply.
two. Although the switching power supply has a high efficiency, it is not 100% after all, and the switching power supply chip is hotThe resistance is relatively small, the heat dissipation capacity is relatively poor, so it is necessary to calculate the voltage and current required by the system, so as to calculate the power consumption of the system, and then calculate the power consumption of the switching power supply chip according to the efficiency curve. The thermal resistance is used to calculate whether the temperature of the chip exceeds the temperature that the chip can withstand.
TMS320VC33: TPS73HD318PWP, the specifications of the power supply chip can be used is the voltage 5V to 3V and 8V, the maximum current 750mA. TMS320VC54xx: TPS73HD318PWP, the specification of the power supply chip that can be used is voltage5V to 3V and 8V, maximum current 750mA; TPS73HD301PWP, the specifications of the power supply chip that can be used are 5V to 3V and adjustable, and the maximum current is 750mA.
Input voltage: The input voltage refers to the range that the DC/DC power module can operate normally. Generally, the more common power system is usually divided into 5V, 12V, 24V, 48V.