MFG:SANYO Package Cooled:DIP-28 D/C:00+
MFG: SANYO
Package Cooled: DIP-28
D/C: 00+
Description: The LB11847 is a driver IC for stepping motors with PWM current control bipolar drive (fixed OFF time)...
The LB11847 is a driver IC for stepping motors with PWM current control bipolar drive (fixed OFF time). A special feature of this IC is that VREF voltage is constant while the current can be set in 15 steps, allowing drive of motors ranging from 1-2 phase exciter types to 4W 1-2 phase exciter types. The current decay pattern can also be selected (SLOW DECAY, FAST DECAY, MIX DECAY) to increase the decay of regenerative current at chopping OFF, thereby improving response characteristics. This is especially useful for carriage and paper feed stepping motors in printers and similar applications where highprecision control and low vibrations are required.
| Parameter | Symbol | Conditions | Ratings | Unit |
| Motor supply voltage | VBB | 50 | V | |
| Peak output current | IO peak | tw 20 S | 1.75 | A |
| Continuous output current | IO max | 1.5 | A | |
| Logic system supply voltage | VCC | 7.0 | V | |
| Logic system supply voltage | VIN | 0.3 to VCC | V | |
| Emitter output voltage | VE | 1.0 | V | |
| Allowable power dissipation (IC internal) | Pdmax | Ta=25°C | 3.0 | W |
| With heat sink | 20 | |||
| Operating temperature | Topr | -20 to +85 | ||
| Storage temperature | Tstg | -55 to +150 |
LB11847
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