| Functions |
Pulse-controlled micro-step driver |
| Applications |
Stepper motor drive for focus and aperture in digital still cameras and
camcorders
|
| Features |
Two H-bridge circuits employing power MOSFETs
On-chip driver using current-feedback system for constant-current chopping
Pulse-controlled 64-division micro-step driving
Reduction of driver step power loss by sense MOS circuit
Standby mode, stop mode at 1-phase position
Low-voltage malfunction prevention circuit, overheating protection circuit
|
| Performances |
Supply voltage: Logic power supply VDD: 2.7 to 3.6 V
motor supply voltage VM: 2.7 to 5.5 V
Low on-resistance: 2.0 ohm MAX. (sum of upper and lower stages)
Drive current: +-0.4 A (DC), +-0.7 A (peak)
Operating temperature range: -10 to 75 deg.C
|
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LEGAL