A4980KLPTR-T vs A3938SLDTR-T 对比
详细并排对比 A4980KLPTR-T 出自 Allegro MicroSystems 和 A3938SLDTR-T 出自 Allegro MicroSystems。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
Allegro MicroSystems
A4980KLPTR-T - 28V 1.4A Bipolar Stepper Driver, TSSOP-28EP | Allegro
A4980KLPTR-T ✓ 量产中Allegro MicroSystems
A3938SLDTR-T - 3-Phase BLDC MOSFET Controller, 50V | Allegro
A3938SLDTR-T ✓ 量产中规格对比
| 参数 | A4980KLPTR-T | A3938SLDTR-T |
|---|---|---|
| 品牌 | Allegro MicroSystems | Allegro MicroSystems |
| 分类 | Motor Drivers | Motor Drivers |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $1.20 | $4.05 |
| Motor Type | Bipolar stepper | — |
| Step Resolution | Full, 1/2, 1/4, 1/16 microstep | — |
| Motor Supply Voltage (max) | 28 V | — |
| Output Current per Phase (peak) | ±1.4 A | — |
| Output Current per Phase (continuous, typical) | ±750 mA | — |
| Low-side RDS(on) | 0.5 Ω typical | — |
| Output Stage | DMOS with synchronous rectification | — |
| Control Interface | Step/Direction + SPI-compatible serial | — |
| Current Decay Modes | Automatic selection of Mixed, Fast, Slow | — |
| Shoot-through Protection | Yes, internal timers | — |
| Output Short-circuit Protection | Yes | — |
| Stalled Rotor Detection | Yes (flag via SPI) | — |
| Low-load-current Detection | Yes (flag via SPI) | — |
| 封装 | 28-pin TSSOP with exposed thermal pad (KLP) | 38-pin TSSOP (LD) |
| 安装类型 | Surface Mount | Surface Mount |
| 工作温度范围 | [DATA_NEEDED: operating temperature range] | — |
| AEC-Q100 Automotive Grade | Automotive qualified (per datasheet title) | — |
| RoHS 状态 | Compliant | Compliant (per Alldatasheet listing) |
| Tape & Reel Quantity | 4000 per reel (T suffix) | — |
| 功能 | — | Three-phase BLDC motor controller / MOSFET gate driver |
| Motor Supply Voltage | — | 18 V to 50 V |
| 拓扑 | — | Three-phase, 6-step PWM / synchronous rectification |
| 输出数量 | — | 3 half-bridge gate drive channels |
| 输出配置 | — | Pre-driver for N-channel MOSFETs (high-side + low-side) |
| High-Side Drive | — | Bootstrap with internal bootstrap diode |
| 同步整流 | — | Yes (low-side) |
| Dead Time Adjustment | — | Adjustable (external resistor) |
| MOSFET Protection | — | Cross-conduction / shoot-through protection |
| PWM Input | — | Logic-level compatible |
| Packaging | — | Tape & Reel (TR) |
| 工作温度 | — | -20C to +85C (industrial range per datasheet) |