PCA1487
Key Features
- 32 kHz oscillator, amplitude regulated with excellent frequency stability
- High immunity of the oscillator to leakage currents
- Time calibration electrically programmable and reprogrammable (via EEPROM)
- A quartz crystal is the only external component required
- Very low current consumption; typically 170 nA
- Output for bipolar stepping motors of different types
- Up to 50% reduction in motor current compared with conventional circuits, by self adaption of the motor pulse width in accordance with the required torque of the motor ORDERING INFORMATION TYPE NUMBER PCA1485U/7 PCA1486U/7 PCA1486U/10 PCA1487U/10 Note PACKAGE(1) NAME - - - - DESCRIPTION chip with bumps on tape chip with bumps on tape chip on foil chip on foil GENERAL DESCRIPTION PCA148x series
- No loss of motor steps possible because of on-chip detection of the induced motor voltage
- Indication for battery end-of-life
- Stop function for accurate timing
