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Broadcom, ACPL-782T-300E DC Input Transistor Output Optocoupler, Surface Mount, 8-Pin DIP
Motor Output Horsepower vs. The effect increases as the resistor-to-ambient thermal resistance increases.
Where TH is the thermistor and the RL is a resistor for linearization. The selected value of the sense resistor will fall somewhere between the minimum and maximum values, depending on the 72t requirements of a specific design. CMRR is defined as the ratio of the differential signal gain signal applied differentially between pins 2 and 3 to the common-mode gain input pins tied together and the signal applied to both inputs at the same timeexpressed in dB.
The power supply for the ACPL T is most often obtained from the same supply used to power the power transistor gate drive circuit.
The corresponding drift figures are normalized to the nominal operating conditions and show how capl drift occurs as the par-ticular drift parameter is varied from its nominal value, 78t all other parameters held at their nominal operating values. In addition, the op-amp should also have enough bandwidth and slew rate so that it does not adversely affect the response speed of the overall circuit. Media New media New comments Search media. Add to a parts list. Started by fastline Yesterday at 8: Acl Offset Voltage vs.
If the sense resistor is not located on the same Wcpl board as the ACPLT circuit, a tightly twisted pair of wires can accomplish the same thing.
Contact your Avago sales representative or authorized distributor for information. Forums New posts Search forums. Although the application circuit is relatively simple, a few recommendations should be followed to ensure optimal performance.
For product information and a complete list of distributors, please go to our web site: This is important because the large load currents flowing through the motor drive, along with the parasitic inductances inherent in the wiring of the circuit, can generate both noise spikes and offsets that are relatively large 78t2 to the small voltages that are being measured across the current sensing resistor.
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ACPL-782T problem understanding datasheet
Second, the leads are typically made from a material, such as copper, acpll has a much higher tempco than the material from which the resistive element itself is made, resulting in a higher tempco overall. Recommended Supply and Sense Resistor Connections. Input Offset Voltage Test Circuit. Save to parts list Save to parts list.
ACPLTE Broadcom | Opto, Avago, ACPLTE | | RS Components
Chopper noise results from chopper stabilization of the output op-amps. The product detailed below complies with the specifications published by RS Components.
ACPLT problem understanding datasheet. The magnitude of the output quantization noise is very small at lower frequencies below 10kHz and increases with increasing frequency. As shown in Figure 18, 0. Note 13 4,15 Specifications are within the Recommended Operating Conditions.
Short circuit current is the amount of output current generated when either output is shorted to VDD2 or ground.
Numerous platedthrough vias should surround each non-Kelvin terminal of the sense resistor to help distribute the current between axpl layers of the PC board. Lowering the thermal resistance can be accomplished by repositioning the current sensing resistor on the PC board, by using larger PC board traces to carry away more heat, or by using a heat sink.
Example Printed Circuit Board Layout. Refer to the following figure for dependence of PS and IS on ambient temperature.