2 layers57 × 55.2 mm
LogicAnalyzer
gusmanb/logicanalyzer
24 channel, 100Msps logic analyzer hardware and software
10 parts5.1kGPL-3.0
2 layers28.7 × 15 mm
Drv120 solenoid driver
MarkJB/drv120_solenoid_driver_module9Solenoid driver module that intelligently drives a solenoid via the TI DRV120 chip.
- Size
- 28.7 × 15 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 8
- Pads
- 25
- Tracks, vias
- 48, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 25 Feb 2020
- Updated
- 24 Feb 2022
Overview
Drv120 solenoid driver is an open-source printed circuit board by MarkJB, from the MarkJB/drv120_solenoid_driver_module repository on GitHub, published under the MIT licence. It is a 2-layer board of 28.7 × 15 mm with 10 parts on 8 nets, routed with 48 tracks and 0 vias.
It is built around the DRV120PW. Its parts include 2 capacitors, 2 resistors, 2 connectors, 1 IC and 1 diode.
Main components
1README
README.mddrv120_solenoid_driver_module
A small PCB module for efficiently driving a solenoid.
Rev B
Originally designed for use with drawing machines for fast up/down pen control but applicable to any project that involves driving a DC solenoid (as a guide > ~30 ohms). A TI DRV120 chip drives the solenoid with a configurable PWM frequency and takes care of the initial fast energize required to get the solenoid moving then ramps down the current to a lower level to hold the solenoid in place. Peak & keep (hold) current and PWM frequency are configurable with resistors and caps (see schematic and data sheet).
Testing with the chosen solenoid (MCSMO-0603S12STD) resulted in using a 4.7uF capacitor for C1 (KEEP), 47K ohm resistor for R1 (PEAK) and a 0 ohm resisitor for R2 (OSC) for the default PWM frequency value (~20kHz).
See datasheet for more details.
Rev B uses JST PH 2.00mm headers. If you are looking for a decent crimper that doesn't cost the earth, I can reccomend the IWISS SN-2549, available on Amazon for a lot less than the offical crimps. The litte extra jaws that jut out at the front do a decent job of crimping these small connectors.
Buy a board
Buy from my tindie store
Make a donation
If you find this project useful, consider donating.
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 0 | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 1 | 1u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 47u | Capacitor_SMD:CP_Elec_6.3x5.8 | C2 |
| 1 | D | Diode_SMD:D_SMA_Handsoldering | D1 |
| 1 | PWR/EN | Connector_JST:JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J1 |
| 1 | Solenoid | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J2 |
| 1 | drv120 | Package_SO:TSSOP-8_4.4x3mm_P0.65mm | U1 |
The 8 most common of 10 parts.
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Questions
How big is the Drv120 solenoid driver PCB?
It measures 28.7 × 15 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Drv120 solenoid driver use?
10 parts, built around the DRV120PW. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Drv120 solenoid driver KiCad files?
From the MarkJB/drv120_solenoid_driver_module repository on GitHub, at the commit this page was made from: the board is drv120_solenoid_driver/drv120_solenoid_driver.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Drv120 solenoid driver design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).