Power management chip, also known as power supply IC, also known as pulse width modulation chip (PWM), the motherboard is called: programmable pulse width modulation chip, mainly responsible for controlling the main power supply of the CPU, generally located near the CPU socket, you can see the model identification.
IC refers to the integrated circuit on the motherboard, also known as the chip. An integrated circuit is a technology that integrates multiple electronic components (such as transistors, capacitors, resistors, etc.) on a single chip. The IC on the motherboard acts as connection and controlMake the important role of each hardware component.
EPU is an IC control chip developed by Asus on the X38 motherboard. After pairing with AI Gear 3 software, it can achieve very flexible power management, and the original eight-phase power supply can be changed into four-phase power supply when the processor is in a low-load state.
Power supply IC refers to the pulse width control integration of the switching power supply, and the power supply depends on it to adjust the stability of the output voltage and current.
1The main power management chips are dual in-line chips, and some are surface-mount packages, of which HIP630x series chips are more classic power management chips, designed by the famous chip design company Intersil. < / p > < p > 2, common power management chip is HIP630IS653RT923ADP316KA7500, TL494, etc. The following will detail the main types of power management chips, and illustrate four common power management chips.
3, commonly used power management chip HIP630IS653RT923ADP316KA7500, TL494, etc.
4, TPS61085 is a high-efficiency booster converter, the input voltage range is 5V to 12V, the output voltage range is 8V to 15V, the maximum output current is 2A, with low power consumption, high efficiency and stable output characteristics.
5, there are 8 kinds of power management chips: AC/DC modulation IC. Includes low voltage control circuit and high voltage switching transistor. DC/DC modulation IC. Includes boost/buck regulators, and charge pumps. Power factor control PFC pre-tuned IC. Available workCost effective for off-line flyback converters up to 30W. During normal operation, the PWM switching frequency is externally programmed and adjusted within a small range.
2, using frequency jitter technology to effectively reduce system EMI; According to load changes, the PFM/BustMode module is intelligently entered to reduce system power consumption and achieve green energy saving.
3, pin function: 1 INV error amplifier inverting input. 2 Output pin of COMP error amplifier. A feedback compensation network is connected between this pin and the INV pin. 3 MULT multiplier losesInsert pin. The full range of AC voltage is distributed 2V to the MULT pin.
4, the chip is a power management chip, the official model OB2223AP. It can be seen on rice cookers, induction cookers and even LED light drivers. There are many on Taobao, and they are not expensive. Just search OB2223AP.
5, pin C power supply, 6 pin current feedback 7 pin frequency oscillation capacitor capacity determines the oscillation frequency.
6, see the specific circuit. It usually works. Depending on the pin function, the 3 pins of the 2226 are usually empty. And 2223's 3 feet as the enable end, some needTogether with the negative filter capacitor of pin 1, it is connected to pin 7. Therefore, 2226 can usually successfully replace 2223, but 2223 cannot directly replace 2226.
1, L780L781L780L7815 L7805: is a commonly used three-end regulator with an output voltage of 5V and an output current of 1A. L7812: Similar to L7805, but with an output voltage of 12V and an output current of 1A. L7808: It is a three-terminal 8VVoltage regulator, output current is 0.5A.
2, OB2223AP. According to the query on Alibaba's official website, the model of the seven-pin power chip of the American electric pressure cooker is OB2223AP. The seven-pin power chip provides working signals to the power tube, detects the power level and adjusts the voltage in real time.
3 SN75176. According to the Siemens official website, the 7-pin chip on the Siemens water heater computer board is SN75176, commonly known as the communication chip, and the SOIC package is used.
4. It should be noted that in order to ensure the safe operation of FSD200,Add a 47 euro 5W current limiting resistor between the rectifier output (305V) and pin 7 of the FSD200. Generally do not take substitutes when buying, use the original model to avoid changing the original circuit and worry.
5, the power management chip model is P1014AP06 a total of seven feet, one foot is the power supply foot Vcc; The second foot is empty; The eight pins are ground GND (internal connection); Four feet are feedback feet FB; The five-pin is the switch tube source output pin DRAIN. Can be replaced by P1014AP10 and TNY26TNY266P.
6, originalThe chip is responsible for the transformation, distribution, detection and other power management of electrical energy in the electronic equipment system. 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.
System-level Power Management Unit (SPM) : The System-level power management unit (SPM) is a highly integrated power management solution that integrates multiple power management functions such as voltage regulation, battery charging, load switching, and power distribution.
SGM4151, the chip is a high-efficiency power management chip for portable devices and low-power applications for battery-powered devices.
, LM7805, etc. 7-pin power chip Model 8370 is a commonly used power management chip, mainly used for power supply management of electronic equipment. With over voltage, under voltage, over current, short circuit protection and other functions, support a wide range of input voltage.
RT8480. According to the query of Alibaba 1688, the 16-pin power management chip uses the original chip, and the chip model is RT8480, which is applied toCharger, control board power supply.
Pin power management chip models include PF7001S PF7001 SOP, UC3843D UC3843AD SOP1LTC4263IS#PBF Linear Technology.
Pin power management chip models are many, the following are some common models: AP2141:14 pin power management chip, with overvoltage protection, overcurrent protection and short circuit protection and other functions. TPS2113A: Dual channel 14-pin power management chip for battery switching, power selection and power management applications.
The chip models are TPS6108SGM4151 and so on. The TPS61085 is a high efficiency boost converter with input voltage range of 5V to 12V, output voltage range of 8V to 15V, and maximum output current of 2A, with low power consumption, high efficiency and stable output characteristics.
z16. According to the wireless router 5-pin power chip model introduction, the model is z16. Wireless router YesA router for users to access the Internet with wireless coverage. The wireless router can be regarded as a repeater, which forwards the broadband network signal from the wall of the home to the nearby wireless network equipment through the antenna.
Jingchen chip 2G 8G. According to the query of relevant information, the parameters of the millet box are written: using the crystal Chen chip, 2GB plus 8GB storage. Xiaomi generally refers to Xiaomi Technology Co., LTD. Xiaomi Technology Co., Ltd. was established on March 3, 2010.