Changes by last author:
Changed:
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| MAP-sensors |
| MAP-board 1.0 |
| Important: check GenBoard/Manual/Wiring/ManifoldAbsolutePressureExternal for the pinout of packaged external sensor (though 5V packaged is pin-compatible with the bare sensor). |
| This adapter is used to hold the 400kPa MPXH6400 sensor. Motorola packages this nice sensor in SMD only, so a PCB was necessary for a clean install. Output is compatible with the more common MPX4250AP sensor, but features 400kPa range instead of 250kPa. Recommended for > 130kPa (1.3bar, 18psi) boost. |
The "bare" version (top-left of the above picture) is ment to be mounted in the ECM case: The adapter is designed to carry the 400kPa MPXH6400 sensor. Motorola packages this nice sensor in SMD only, so a PCB was necessary for a clean install. Output is compatible with the more common MPX4250AP sensor, but features 400kPa range instead of 250kPa. Recommended for > 130kPa (1.3bar, 18psi) boost. |
| Mounting the 5V "bare" version |
| Pinout of the 5V version |
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The "bare"-board is ment to be mounted vertically in the Alubos case, perpendicular to v3.x
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|| pin nr. || color|| signal || range || note''' ||
|| 1 || white || MAP output || 0 .. 4.8V || 20..400kPa || || 2 || brown || GND || 0V || || || 3 || red || 5V in || 5V || max 10mA || || 4 || blue || temp out || 0.5 .. 4.5V || NTC, similar U(T) as CLT || || 5 || - || GND internal || 0V || || || 6 || - || not connected || - || || |
| The image is taken before hotmelt is applied (at the connection of the boards and the sensor nipple). |
| The first 3 pin is compatible with the MPX4250AP pinout. |
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* recommended to connect all 6 pins
* some hotmelt helps for extra ruggeddness * the pneumatic tube to the frontplate also secures the mounting Mounting is normally done vertically, perpendicular to the v3.x PCB. The nipple is horizontal, points to the "VIV" type pneumatic connector mounted "through the frontplate". Notice that this sensor has small 5x3mm nipple, so * either the smaller 5x3 mm VIV connector is needed * or VIV connector that is 5x3mm on one side and 6x4mm on the other side |
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* solder all 6 pins (with bent leads) of the 90degree header that connects the boards
* the sensor nipple points directly towards the "VIV" type pneumatic connector mounted on frontplate: this secures the mounting ** the screwholes are normally not used, at least not to secure the board against v3.x. The sensor would point down (towards the board -would be quite useless) if these screws were used ! * some hotmelt glue (after testing) helps for extra ruggeddness * Note that this sensor has small 5x3mm nipple, so ** either the smaller 5x3 mm VIV connector is needed (mounts in drill dia=7mm. Rarely used.) ** or use VIV6453 pneumatic connector (5/3mm on one side and 6/4mm on the other side, it mounts in drill dia=10mm. This is used normally.) |
| Pinout of the 12V version |
| Note that populated this way, the supply has a wide range, and the 5V is output, not input. Applying 5V to the 5V output is not supported, it might damage the unit. Use the 5V version if you want to power from 5V |
| Internal "bare" version is only practical with 5V supply, to match the supply provided by the GenBoard/VerThree header. It's possible to order the "bare" board with 12V supply, for other applications, if you really know what you are doing. |
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|| pin nr. || color|| signal || range || note''' ||
|| 1 || white || MAP output || 0 .. 4.8V || 20..400kPa || || 2 || brown || GND || 0V || || || 3 || red || 5V out || 5V || max 80mA. Useful for HALL, TPS, etc... || || 4 || blue || temp out || 0.5 .. 4.5V || NTC, similar U(T) as CLT || || 5 || - || GND internal || 0V || || || 6 || grey || +12V in || 6.3 .. 16V || || |
| Pinout of the 5V, 400kPa version: "bare" or packaged |
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|| pin nr. || signal || range || note ||
|| 1 || MAP output|| 0 .. 4.8V || 20..400kPa || || 2 || GND || 0V || || || 3 || 5V in || 5V || max 10mA || || 4 || temp out || 0.5 .. 4.5V || only for the 400kPa version; NTC U(T) curve: similar to coolant sensors, 2.5V at +25C || || 5 || GND internal || 0V || || |
| Coming soon: packaged versions for engine bay (eg. firewall mount) usage |
| The bare, internal version also has a 6th, not connected pin (so it mounts nicely on the 6 pads of MPX4250AP). |
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The packaging (for engine-bay usage) is close:
* A small box (min 30x26x29mm internal dimensions), taller than the currently used would be nice. * Maybe an L-shape Al profile will help, using the pneumatic connection and 2 screws to secure the circuit. Holes are needed for easy mounting of the whole package. Maybe epoxy casting would work as well. Ideas welcome. |
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Pinout of the 12V supply, 400kPa bare version - you likely don't need this type. Either buy packaged, or buy the bare with 5V supply. |
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'''Important: while the 12V supply is a nice option for the external GenBoard/Manual/Wiring/ManifoldAbsolutePressureExternal, for the internal the 5V is what you likely need when used inside the v3.x case. The 12V is only for special applications, not suitable for direct mounting on GenBoard/VerThree.
Note that populated this way, the supply has a wide range, and the 5V is output, not input. Applying 5V to the 5V output is not supported, it might damage the unit. |
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|| pin nr. || signal || range || note ||
|| 1 || MAP output || 0 .. 4.8V || 20..400kPa || || 2 || GND || 0V || || || 3 || 5V out || 5V || max 80mA. Useful for HALL, TPS, etc... || || 4 || temp out || 0.5 .. 4.5V || NTC, similar U(T) as CLT || || 5 || GND internal || 0V || || || 6 || +12V in || 6.3 .. 16V || || |
| * See GenBoard/Manual/PneumaticTube |