| TYPE | DESCRIPTION |
|---|
| Mounting Style | Through Hole |
| Number of Pins | 28 Pin |
| Case/Package | DIP-28 |
| Output Voltage | 1.2 V |
| Output Current | 1.5 A |
| Number of Positions | 30 Position |
| Power Dissipation | 3000 mW |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -20 ℃ |
| Power Dissipation (Max) | 3000 mW |
| Supply Voltage | 4.75V ~ 5.25V |
| Supply Voltage (Max) | 5.25 V |
| Supply Voltage (Min) | 4.75 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Bulk |
| Operating Temperature | -20℃ ~ 85℃ (TA) |
The LB1847 is a driver IC for stepper 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 exceiter 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 expecially useful for carriage and paper feed stepping motors in pricinters and similar applications where high-precision control and low vibrations are required.
●Features
●---
● |
● PWM current control (fixed OFF time)
● Load current digital selector
● Selectable current decay pattern
● Simultaneous ON prevention function
● Noise canceller
● built-in thermal shutdown circuit
● built-in logic low-voltage OFF circuit
ON Semiconductor
15 Pages / 0.12 MByte
ON Semiconductor
15 Pages / 0.16 MByte
ON Semiconductor
2 Pages / 0.05 MByte
Sanyo Semiconductor
Stepper Motor Controller, 1.75A, BIPolar, PDIP28, 0.5INCH, DIP-28
ON Semiconductor
PWM Current Control Type Stepper Motor Driver
ON Semiconductor
PWM Current Control Type Stepper Motor Driver, PDIP30 / DIP30SD (400 mil), 20-FNFLD
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