orc
aramder
Open replacement controller board for surplus Motorola PMUN1046A relay boxes: ESP32-C3, CANopen control, 10 x 15 A channels. Independent project, not affiliated with Motorola Solutions.
Components (25)
| Reference | Value | Description |
|---|---|---|
| Q6,Q10,Q14,Q15,Q18,Q20,Q22,Q24,Q26,Q28 | MMBT3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, SOT-23 |
| Q8,Q12,Q16,Q17,Q19,Q21,Q23,Q25,Q27,Q29 | AO3401A | -4.0A Id, -30V Vds, P-Channel MOSFET, SOT-23 |
| U1 | PCA9555PW | IO expander 16 GPIO, I2C 400kHz, Interrupt, 2.3 - 5.5V, TSSOP-24 |
| U2 | AMS1117-3.3 | 1A Low Dropout regulator, positive, 3.3V fixed output, SOT-223 |
| U3,U4 | LMR50410 | Simple Switcher Buck Regulator, Vin=4-36V, Iout=1A, Adjustable output voltage, SOT-23-6 package |
| U6 | SN65HVD230 | CAN Bus Transceivers, 3.3V, 1Mbps, Low-Power capabilities, SOIC-8 |
| U7 |