SLVSCP2F January 2015 – June 2020 DRV10975
PRODUCTION DATA.
Table 10 provides design input parameters and motor parameters for system design.
MIN | TYP | MAX | UNIT | ||
Motor voltage | 6.5 | 12 | 18 | V | |
BEMF constant | Phase to phase, measured while the motor is coasting | 0.001 | 1.8 | V/Hz | |
Phase-Phase resistance | Measured ph-ph | 0.6 | 24 | Ω | |
Phase-Phase inductance | Measured ph-ph | 0.07 | mH | ||
Operating closed loop speed | Electrical frequency | 1 | 1000 | Hz | |
Operating current | PGND, GND | 0.1 | 1.5 | A | |
Absolute maximum current | During start-up or lock condition | 2 | A |
Phase current is distorted for motors at lower duty cycle with Rph-ph less than 3 Ω thereby introducing acoustic noise. It is recommended to pick motors with phase to phase resistance Rph-ph above 4 Ω for a cleaner and lower acoustic (low harmonics) phase currents.