SPICA Electrostatic Actuator
An automotive NTC temperature sender paired with a NEMA14 captive linear stepper on one automotive-qualified board — reads temperature and drives a pin in and out to actuate against it, closed-loop.
Board size
67.7 × 48.9 mm, 4-layer
MCU
NXP S32K144, AEC-Q100 automotive qualified
Temp sensor
GM-style NTC sender, 3/8" NPT, 2-wire isolated
Sensor range
−40 to 210 °F (100.7 kΩ to 177 Ω)
Sensor ADC
ADS1118-Q1, single-ended resistive divider
Stepper motor
NEMA14 captive linear, StepperOnline 14C19S1504GF5-025RS
Stepper driver
DRV8434A-Q1, 1.5 A/phase
Power input
J6, edge-mounted
Programming
J2, SWD
Connectors
4 total — power, temp sensor, stepper, SWD
Mounting
4 corner holes, unpopulated NPTH