It is a five-pin shape. Among them, one pin is the signal in-phase input, two pin is the signal inverting input, three pin negative power supply -Vee (single power grounding GND), four pin is the signal output, and five pin power supply Vcc input.
The drive circuit is takenIR2110 driver chip is used to control the switching state of MOSFET tube to realize the stable adjustment of power output voltage. The basic principle of the circuit is that on the basis of the DC voltage of the input power supply as the main power supply, the output voltage of the power supply is converted to the required step-down voltage through the MOSFET tube and inductor and other components.
The lm224 chip works by feeling the size of the current. According to the relevant public information, the lm224 chip will start to work when the current size reaches a certain amount. Electromagnetics refers to the amount of electricity that passes through any cross section of a conductor per unit time as electricityCurrent intensity, referred to as current, current symbol is I, the unit is amperes (A), referred to as amps.
Use LM2596 to compose the lm2576 chip pin diagram and function circuit can meet the lm2576 chip pin diagram and function your needs. Technical parameters: Maximum input voltage 40V Maximum output current 3A output voltage2-37V Note: The selection of R2 is calculated according to the formula of output voltage. R2 = R1 (output voltage / 23-1) R1 should be selected with 1% accuracy. The feedback wire should be kept away from the inductor. The thick lines in the drawing must be short or masked.
Parameter and pin diagram/LM7805 core is 5V output, stable current up to 1A, for lm2576 chip pin diagram and function your circuit to provide stable voltage support. The pin diagram clearly indicates the capacitance of C1/2200uF and C2/0.1uFThe combination can effectively prevent oscillations, and the minimum input voltage is 7V or 9V to ensure stable operation. Installation and precautions During installation, pay attention to ensure good heat dissipation when the input voltage is higher than 3V. The typical application circuit of
is shown in the figure below, which is a regulated power supply circuit with a positive 5V DC voltage output. IC adopts integrated voltage regulator 7805, CC2 is the input and output filter capacitor, RL is the load resistance. When the output power is large, the 7805 should be equipped with a cooling plate. The following diagram shows the application circuit for increasing the output voltage.
Connection method: 7The input end of the 809 is connected to 9V, the ground end is grounded, the output end is connected to the load, the input and output are in parallel with a 0.01 and 100 micromethod capacitor, and the 9V voltage is obtained from the battery by a 7809 in the same way, and whether the heat sink is added or not should be considered jointly with the load current.
The right figure is the schematic diagram of the pin of the LM2596 chip. 1 is VIN, 2 is out put, 3 is gnd, 4 is feed back, and 5 is on/off.
The LM2596 is a feature-rich power management integrated circuit that integrates a fixed-frequency oscillator, a reference regulator, and a step-down DC-DC converter. The following is the pin diagram and function description of the LM2596: VIN (VIN) : This is the positive input power pin of the switching regulator of the IC.
LM2596 adjustable power module schematic diagram is as follows: Input filter circuit: CLCC3 composed of double π filter network is mainly to suppress the electromagnetic noise and clutter signal of the input power supply, to prevent interference with the power supply, but also to prevent the power supply itselfHigh-frequency clutter interferes with the power grid. Charge the C5 when the power is turned on. Microelectronic technology is used to assemble small surface-mounted integrated circuits and micro-electronic components into one.
This is a schematic diagram of a DC-DC conversion circuit for LM2596-5. It is a 5V fixed voltage version of the LM2596 series. The built-in resistance divider is directly connected with pin 4, and the peripheral voltage output terminal is directly connected to sample the output voltage. In the actual design, it is necessary to pay attention to the heat dissipation of the IC, and the large current path should be as short and thick as possible. The inductor L should also be as close to the output of the IC as possible.