A3977SLPTR-T
Motor Driver/Controller, DMOS, 3V to 5.5V supply, 450 mOhm RDS, 35V/2.5 A/2 Outputs, TSSOP-28
| Manufacturer | ALLEGRO MICROSYSTEMS |
|---|---|
| Manufacturer Part No | A3977SLPTR-TCopy |
| Manufacturer Standard Lead Time | 29 weeks |
| Order Code | Re-Reel2840982RL Cut Tape2840982 |
| Your Part Number | |
| Technical Datasheet |
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| Packaging Type | Quantity | Unit Price: | Total |
|---|---|---|---|
| Cut Tape | 1 | $10.910 | $10.91 |
| Quantity | Price (Incl GST) |
|---|---|
| 1+ | $10.910 ($12.5465) |
| 10+ | $8.390 ($9.6485) |
| 25+ | $7.670 ($8.8205) |
| 50+ | $7.380 ($8.487) |
| 100+ | $7.090 ($8.1535) |
| 250+ | $6.770 ($7.7855) |
| 500+ | $6.660 ($7.659) |
Product Information
| Manufacturer | ALLEGRO MICROSYSTEMS |
|---|---|
| Manufacturer Part No | A3977SLPTR-TCopy |
| Manufacturer Standard Lead Time | 29 weeks |
| Order Code | Re-Reel2840982RL Cut Tape2840982 |
| Technical Datasheet | |
| IC Type | Microstepping Motor Driver |
| Motor Type | Stepper |
| No. of Outputs | 2Outputs |
| Output Current | 2.5A |
| Output Voltage | 35V |
| IC Case / Package | TSSOP |
| No. of Pins | 28Pins |
| Supply Voltage Min | 3V |
| Supply Voltage Max | 5.5V |
| Operating Temperature Min | -20°C |
| Operating Temperature Max | 85°C |
| Qualification | - |
| Product Range | - |
| MSL | - |
| SVHC | No SVHC (17-Jan-2022) |
| Automotive Qualification Standard | - |
| Driver Case Style | TSSOP |
Product Overview
The A3977SLPTR-T is a Microstepping DMOS Motor Driver with built-in translator. It is designed to operate bipolar stepper motors in full, half, quarter and eighth-step modes. It includes a fixed off-time current regulator that has the ability to operate in slow, fast or mixed-decay modes. This current-decay control scheme results in reduced audible motor noise, increased step accuracy and reduced power dissipation. The translator is the key to the easy implementation. Simply inputting one pulse on the STEP input drives the motor one step. There are no phase-sequence tables, high-frequency control lines or complex interfaces to program. The interface is an ideal fit for applications where a complex microprocessor is unavailable or over-burdened. Internal synchronous-rectification control circuitry is provided to improve power dissipation during PWM operation. Internal circuit protection includes thermal shutdown with hysteresis, under voltage lockout and crossover-current protection.
- ±2.5A, 35V Output rating
- Low RDS(on) outputs, 0.28Ω source, 0.22Ω sink typical
- Automatic current decay mode detection/selection
- 3 to 5.5V Logic supply voltage range
- Mixed, fast and slow current decay modes
- Home output
- Synchronous rectification for low power dissipation
- Internal UVLO and thermal shutdown circuitry
- Crossover-current protection
Applications
Motor Drive & Control
Technical Specifications
| IC Type | Microstepping Motor Driver |
|---|---|
| No. of Outputs | 2Outputs |
| Output Voltage | 35V |
| No. of Pins | 28Pins |
| Supply Voltage Max | 5.5V |
| Operating Temperature Max | 85°C |
| Product Range | - |
| SVHC | No SVHC (17-Jan-2022) |
| Driver Case Style | TSSOP |
| Motor Type | Stepper |
|---|---|
| Output Current | 2.5A |
| IC Case / Package | TSSOP |
| Supply Voltage Min | 3V |
| Operating Temperature Min | -20°C |
| Qualification | - |
| MSL | - |
| Automotive Qualification Standard | - |
Technical Docs (2)
Legislation and Environmental
| Country of Origin: Country in which last significant manufacturing process was carried outCountry of Origin: | Malaysia Country in which last significant manufacturing process was carried out |
|---|---|
| Tariff No: | 85423990 |
| US ECCN: | EAR99 |
| EU ECCN: | NLR |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | Yes RoHS |
| SVHC: | No SVHC (17-Jan-2022) |
| Download Product Compliance Certificate | Product Compliance Certificate |
| Weight (kg): | .000168 |