Overview
The LV8728MR-AH is a PWM current-controlled microstep stepper motor driver manufactured by onsemi. This driver is designed to provide precise control over stepper motors, offering a range of excitation modes and advanced features for various applications.
Key Specifications
| Parameter | Symbol | Conditions | Ratings | Unit |
|---|---|---|---|---|
| Maximum supply voltage | VM max | VM, VM1, VM2 | 36 | V |
| Maximum output current | IO max | Per 1ch | 2.0 | A |
| Maximum logic input voltage | VIN max | ST, MD1, MD2, MD3, OE, RST, FR, STEP | 6 | V |
| Operating temperature | Topr | -30 to +85 | °C | |
| Storage temperature | Tstg | -55 to +150 | °C | |
| Output on-resistance (upper side) | Ronu | IO = 2.0A | 0.3 - 0.42 | Ω |
| Output on-resistance (lower side) | Rond | IO = 2.0A | 0.25 - 0.35 | Ω |
| Allowable power dissipation | Pd max | 1.55 | W |
Key Features
- Single-channel PWM current control stepper motor driver
- BiCDMOS process IC
- Selectable excitation modes: Full, Half, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128 step
- Forward and reverse control
- Over-current protection circuit
- Thermal shutdown circuit
- Input pull-down resistance
- Reset and enable pins
Applications
- Printers (Multi-function printers, 3D printers, etc.)
- Security cameras
- Scanners
- Stage lights
Q & A
- What is the maximum supply voltage for the LV8728MR-AH?
The maximum supply voltage is 36 V.
- What is the maximum output current per channel for the LV8728MR-AH?
The maximum output current per channel is 2.0 A.
- What are the selectable excitation modes for the LV8728MR-AH?
The selectable excitation modes include Full, Half, 1/4, 1/8, 1/16, 1/32, 1/64, and 1/128 step.
- Does the LV8728MR-AH have over-current protection?
- What is the operating temperature range for the LV8728MR-AH?
The operating temperature range is -30 to +85°C.
- What is the storage temperature range for the LV8728MR-AH?
The storage temperature range is -55 to +150°C.
- Does the LV8728MR-AH support forward and reverse control?
- What is the allowable power dissipation for the LV8728MR-AH?
The allowable power dissipation is 1.55 W.
- What are some typical applications for the LV8728MR-AH?
- Is the LV8728MR-AH still in production?
