The target below is very clear, LM2596, half of the switching power supply chip. VDD50 is oneA power supply end, according to the name should represent 0V digital power supply.
foot is estimated to be OB2262/OB2263. Look at the typical application circuit.
Therefore, the chip model compares the characteristics of MP2259DT packaged with symbol SOT-23-6: pin 1 is the bootstrap capacitor access pin, pin 2 is the ground pin, pin 3 is the feedback pin, pin 4 is the enable pin, pin 5 is the input pin, and pin 6 is the switch drive output pin.
Six-pin chip. The six-pin patch chip on the charging treasure is a six-pin patch chip, which is very common, and the six-pin switching power supply oscillation chip, also known as the power tubeManage the chip. A power bank is a device that can charge mobile devices directly and has its own power storage unit.
Each pin of the chip C844G has the following functions: one pin compensation, the pin is the output of the error amplifier, and can be used for loop compensation. Two-pin voltage feedback, the pin is the inverting input to the error amplifier, usually connected to the switching power output via a resistance divider. Three-pin current sampling, a voltage proportional to the inductor current is connected to this input, the pulse width modulator uses this information to abort the on-off of the output switch.
No. Replacing a 6-pin power chip with an 8-pin chip is not feasible, and the number of pins of the power chip is determined according to its design and functional requirements, and the functions and connections of different pins are also different.
Pin power chip 6005A and NCP1251 circuit components are the same, can be replaced. The power supply chip 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. With the development of electronic technology, especially the current popularity of portable products and the promotion of energy saving and environmental protection, power supplyChips are playing an increasingly important role.
cannot be replaced directly. Its role is to connect a resistor or capacitor to set the operating frequency. If replaced, there are 6 pins IC pins are the same function, check whether there is a circuit connected to the 3 pins when replaced, if not, connect a 100K resistor to the ground in the 3 pins, replace with OB2263, the circuit can work. If there is no peripheral circuit in the case of 3 pin with OB2263 replacement will cause explosion.
series of power management chip parameters are the voltage output range is 1V-85V, switching frequency 80KHz. Input voltage range73 Substitution method
1, the accessory can be used LD7536 instead. This chip has similar functions and characteristics to the original chip 6-pin power chip , which can be compatible with and replace the chip in the original machine. In substitution, it is necessary to pay attention to the circuit design of the peripheral 3 pins of the original machine. If the outside of the 3 pins of the original machine is suspended, a 100K resistor needs to be connected to the 3 pins to the ground to stabilize the circuit.
2, and 73 six-pin power supply chips can be interchangeable. According to the query of induction cooker maintenance related information, 63 power management chip replacementChange and 73 six-pin power chip can be interchangeable. The 63 and 73 six-pin power supply chips are interchangeable. The six pins of the two power chips are arranged the same, and the output and input voltages are identical. They can be used interchangeably.
3, ①, what chip is used to replace the above LCD TV power chip MJP37R, can be replaced with MQP37R? To the above original "MJP37R" can be completely replaced with "MQP37R", the reason is that the two chips are the same, but the manufacturer is not the same.
4, because the model is not the same, so it is notCan be substituted with a 371. Only the original 372 can be used.
5, Yes. If there is no obvious short circuit at the output end or the resistance value is small, you can directly replace it with a DC/DC component small board. integratedcircuit, abbreviated as IC 6-pin power chip ; Or microcircuit (microcircuit), microchip, chip/chip (chip) in electronics is a circuit (mainly including semiconductor devices,Also includes passive components, etc.) miniaturized and often manufactured on the surface of semiconductor wafers.
6, the foot power chip can be directly replaced, because the function of the two is almost the same.
AA six-pin chip are as follows: VCC: power supply pin, connected to the positive power supply, usually 3V or 5V. GND: Ground pin that connects the negative power supply to the common ground of the circuit. SCL: Clock pin, used to control dataThe transmitted clock signal. SDA: Data cable pin for data transmission. A0: Address bit selection pin that selects different device addresses by setting high or low levels.
pin, also called pin, is the connection from the internal circuit of the integrated circuit (chip) to the peripheral circuit, all the pins constitute the interface of this chip.
Use six-pin switching power supply chip to make switching power supply, OB2532 chip can be selected. OB2532 is a six-pin switching power supply chip, 1 pin is GND end, 2 pin is GATE end, 3 pin is CS end, 4 pinIt is the INV end, pin 5 is the COMP end, and pin 6 is the VDD end. Using this chip plus a switching power supply pulse transformer is very easy to form a switching power supply.