If there is no voltage in general, it may be a problem with the internal line, so it needs to be understood through relevant maintenance. Maybe the chip's broken. Need to replace coreLE pin: Enables control. SW pin: Switch tube, connected to VIN. FB pin: Feedback control output stability. VOUT pin: Output voltage.
The pins and functions of the six-pin IC2201 of the TCL LCD TV are as follows: Pin 1: Enable 1; Pin 2: Vin; Pin 3: Enable 2; Pin 4: Output 2; Pin 5: GND; Pin 6: Output 1.
Low level clear. The 273 is an 8D trigger with a clear end. It has a latch function only when the clear end is kept at high power. The latch control end is a 6-pin CLK with a rising edgeLatch. 6-pin switching power oscillator chip, also known as power management chip.
Output: Enable (OE) : Some SRAM chips also have this pin, but it is not shown in the figure above. This pin is the opposite of the function of the WE pin, which lets SRAM know that a read operation is to be performed instead of a write operation.
⑤ The foot is the public ground end; ⑥ The foot is the push-pull output end, the interior is the totem pole type, the rise and fall time is only 50ns, the driving capacity is ±1A; The pin is the DC power supply side, with undervoltage and overvoltage locking function, and the chip power consumption is 15mW; The pin is a 5V reference voltage output end, with a 50mA load capacity.
NCP1251. 6-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.
No. Replacing a 6-pin power chip with an 8-pin chip will not do, electricityThe number of pins of the source chip is determined according to its design and functional requirements, and the functions and connections of different pins are also different.
The accessory can be used instead of LD7536. This chip has similar functions and characteristics to the original chip, and 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.
cannot be replaced directly. Its role is to connect a resistor or capacitor to set the operating frequency. Instead, it has 6 feet IThe C pin has the same function, check whether there is a circuit connected to the 3 pin when replacing, if not, connect a 100K resistor to the ground in the 3 pin, replace with OB2263, the circuit can work.
aa chip can replace 5A2 power chip. The 5aa power chip and 5A2 power chip are the same chip, which are commonly used 6-pin power management driver chips. The performance power of the two is the same, and the parameters are equal, so the 5aa chip can replace the 5A2 power chip.
This chip has similar functions and characteristics to the original chip, and 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.
and 73 six-pin power supply chips are interchangeable. According to the query of induction cooker maintenance related information, the replacement of the 63 power management chip and the 73 six-pin power chip can be exchanged. The 63 and 73 six-pin power supply chips are interchangeable. The six pins of the two power chips are arranged the same, the output andThe input voltage is the same.
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.
①, about the above LCD TV power chip MJP37R with what chip replacement, 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.