Pololu RC Switch with Medium Low-Side MOSFET

PololuSKU: EXP-R25-279

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Sale price8,50 €

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Only 10 units left

Manufacturer article number: 2803
Customs tariff number: 85439000
Country of origin: US

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Description


The Pololu RC switch with medium low-side MOSFET can be used with standard hobby radio control systems for radio control switch applications or simple interface applications. Example uses include converting extra RC receiver or servo controller outputs to simple high/low signals that can control LEDs or relays and connecting RC systems to microcontroller projects that do not have the necessary resources for decoding the RC interface. Two outputs indicate the presence of a valid signal and whether the switch is on or off, and an integrated low-side MOSFET turns on when the switch is on, allowing the board to drive moderate loads directly. The switch also features a flyback (or freewheeling) diode across the load outputs so that you can connect a coil to them, such as a motor or relay, without any additional external components.

An onboard regulator allows the switch to be powered from voltages between 2.5 V and 16 V. This allows the board to be powered from a 4- or 5-cell NiMH or NiCD battery pack. The battery pack will typically be connected to an RC receiver or servo controller, which passes the power on to the RC switch. The board?s MOSFET can deliver up to 15 A with VCC at 5 V and can handle load supply voltages up to 30 V.

The RC switch measures the width of incoming RC pulses and compares it to a user-configurable threshold (with ±64 µs of hysteresis) to decide whether to turn on the MOSFET. By default, the threshold is approximately 1700 ?s, with switch activation occurring above the threshold (longer pulses), but the switch has a learning mode that allows you to change the threshold and the activation direction. A safe-start feature reduces the likelihood of unexpected activation.

This compact unit measures 0.6? × 0.825? and weighs just over a gram (0.04 oz) without the included header pins.

Pololu RC Switch with Medium Low-Side MOSFET with Pololu RC Switch with Medium Low-
included terminal blocks and headers soldered to the component side. Side MOSFET on a breadboard.


Outputs and indicator LED
The RC switch provides feedback about what state it is in via a yellow indicator LED. Status information is also provided on two output pins:
  • The GOOD pin indicates the presence of a valid RC signal (10?330 Hz pulse rate, 0.5?2.5 ms pulse width).
  • The OUT pin indicates whether the MOSFET is on.
More information about using the Pololu RC switch with medium low-side MOSFET can be found in the user?s guide.

Specifications

  • Size: 0.6" × 0.825"
  • Weight: 1.2g
  • Minimum operating voltage: 2.5V
  • Maximum operating voltage: 16V
  • Maximum output current: 15A

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Additional information

Customs tariff number:
85439000

Country of origin:
US

This depends on where you are located. Once the order has been handed over to UPS, the delivery time in Germany is approx. 2-3 days, within Europe approx. 1 week.

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