DRV8886ATPWP - 37V 2A Bipolar Stepper Driver | Texas Instruments
部品番号: DRV8886ATPWP ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.62 | $3.62 |
| 10 | $3.26 | $32.60 |
| 100 | $2.89 | $289.00 |
| 500 | $2.58 | $1,290.00 |
| 1,000 | $2.31 | $2,310.00 |
| 3,000 | $2.04 | $6,120.00 |
DRV8886ATPWP 概要
A stepper motor driver is a power-management IC that converts low-power STEP and DIR logic signals from a microcontroller into the high-current phase currents required to commutate a two-phase bipolar stepper motor. It sits in the system hierarchy between the motion controller (often a microcontroller, FPGA, or dedicated motion MCU) and the mechanical motor, providing regulated current through each winding using an H-bridge topology with PWM current chopping. The DRV8886ATPWP belongs to the brushless-DC/stepper motor driver subcategory of power management ICs, integrating MOSFETs, gate drivers, and a microstepping indexer so the host only needs to provide step pulses.
Key features include a low 550 mΩ HS+LS on-resistance, integrated current sensing that eliminates external sense resistors, AutoTune (smart tune) technology that dynamically adapts decay mode to motor operating region, internal 3.3-V reference, stall detection (when used with AutoTune), and a low 20-µA sleep current. Programmable features include configurable decay modes (smart tune, mixed, slow, fast), 1 to 1/16 microstepping, torque DAC, and adjustable blanking/sleep timing via serial interface or external resistor.
Architecturally, the device combines a charge-pump gate driver, dual H-bridges built from N-channel MOSFETs, an internal current-sense amplifier per phase, and a state machine that handles microstepping commutation. This integration removes external sense resistors and allows the system MCU to focus on motion profiles rather than real-time current control.
Typical applications include 3D printers, automated door locks, point-of-sale (POS) printers, CCTV camera pan/tilt/zoom, and office automation equipment. For example, in a 3D printer extruder or bed-feeder axis, the DRV8886ATPWP delivers smooth microstep motion with AutoTune handling back-EMF-induced current distortion without firmware intervention.
When designing with this part, ensure the PowerPAD is soldered to a copper pour of at least 1 in² to achieve the rated 1.4-A rms continuous current; the package's thermal performance is PCB-dependent. Use a 0.1-µF VCC bypass capacitor close to the IC and follow the datasheet ground/power layout recommendations to keep digital switching noise out of the sense amplifier.
This page synthesizes verified distributor pricing, same-brand and cross-brand drop-in alternatives, application notes, and practical design guidance not consolidated on a single manufacturer or distributor page, giving engineers a one-stop decision resource for selecting and implementing the DRV8886ATPWP.
ドロップイン代替品: DRV8886ATPWP — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: DRV8886ATPWP （同一形状・フットプリント） — 相違点: Package, Control Interface, Microstepping Levels, MSL Level, Motor Type.
クイック比較ツール — 並列比較する代替部品を選択:
DRV8886ATPWPR
✅ ドロップイン✓ 在庫あり
$1.78 / 個
データシートを見る →DRV8886PWP
✅ ドロップイン📋 参考代替品（カタログ未掲載）
DRV8806PWPR
✅ ドロップイン✓ 在庫あり
$3.2 / 個
データシートを見る →DRV8886ATPWP 最大定格＆電気的特性
| Motor Type | Bipolar Stepper |
| Number of Full H-Bridges | 2 |
| Load Voltage Rating (VM max) | 37 V |
| Minimum Operating VM | 8 V |
| Logic Supply Voltage (VCC) | 3 V to 5.5 V |
| Full-Scale Output Current | 2 A (per H-bridge, 25°C PCB-dependent) |
| RMS Output Current | 1.4 A (24 V, TA=25°C, PCB design-dependent) |
| Peak Output Current | 3 A |
| HS + LS On-Resistance (RDSon) | 550 mΩ |
| Control Interface | STEP / DIR (Hardware GPIO) |
| Microstepping Levels | Full to 1/16 step |
| Integrated Current Sense | Yes (internal sense, no external resistors) |
| AutoTune / Smart Tune Decay | Yes |
| Decay Modes | Smart tune, mixed, slow, fast (programmable) |
| Sleep Current | 20 µA |
| PWM Chopping Frequency | Up to 100 kHz |
| 動作温度範囲 | -40°C to +125°C |
| Temperature Grade | Automotive |
| パッケージ | HTSSOP-24 (PWP) PowerPAD |
| 実装タイプ | Surface Mount |
| MSLレベル | 2 (per JEDEC J-STD-020) |
| Terminal Finish | Nickel-Palladium-Gold |
| Peak Reflow Temperature | 260°C |
| RoHS ステータス | Compliant |
DRV8886ATPWP ピン構成
| ピン 1 | VCC — 3-5.5 V logic supply input |
| ピン 2 | nSLEEP — Active-low sleep mode control |
| ピン 3 | STEP — Step input; rising edge advances the indexer one microstep |
| ピン 4 | DIR — Direction control input; sets direction of stepper rotation |
| ピン 5 | nENABLE — Active-low enable input; low enables outputs |
| ピン 6 | M0 — Microstepping mode bit 0 |
| ピン 7 | M1 — Microstepping mode bit 1 |
| ピン 8 | DECAY — Decay mode select / AutoTune enable |
| ピン 9 | TORQUE — Torque DAC select |
| ピン 10 | VREF — Current set reference voltage input |
| ピン 11 | GND — Ground |
| ピン 12 | AOUT1 — Phase A H-bridge output 1 to motor winding A |
| ピン 13 | AOUT2 — Phase A H-bridge output 2 to motor winding A |
| ピン 14 | BOUT1 — Phase B H-bridge output 1 to motor winding B |
| ピン 15 | BOUT2 — Phase B H-bridge output 2 to motor winding B |
| ピン 16 | GND — Ground (motor side) |
| ピン 17 | VM — Motor supply (8 V to 37 V) |
| ピン 18 | VM — Motor supply (8 V to 37 V) |
| ピン 19 | GND — Ground (motor side) |
| ピン 20 | CP1 — Charge pump flying capacitor 1 |
| ピン 21 | CP2 — Charge pump flying capacitor 2 |
| ピン 22 | VCP — Charge pump output |
| ピン 23 | nFAULT — Active-low fault output (open-drain) |
| ピン 24 | PowerPAD — Exposed thermal pad; tie to GND with thermal vias |
主な用途
DRV8886ATPWP の用途: 6 件s: 3D Printer Extruder / Bed Feeder, Electronic Door Lock and Access Control, POS / Receipt Printer Paper Feed, CCTV Camera Pan / Tilt / Zoom (PTZ), Office Automation Equipment, Automated Vending and Dispensing.
3D Printer Extruder / Bed Feeder
The DRV8886ATPWP is well-suited to 3D-printer extruder and bed-feeder axes because its integrated current sensing eliminates external sense resistors, reducing BOM and PCB area in compact motion-control boards. With 2 A full-scale phase current and 1/16 microstepping, it delivers the smooth low-speed motion needed for layer-resolution printing, while AutoTune decay dynamically adjusts to the rapidly changing motor back-EMF during retraction and travel moves, preventing step loss without firmware tuning.
おすすめ
Electronic Door Lock and Access Control
Battery-powered electronic door locks and access-control actuators demand low standby drain, smooth start/stop motion, and reliable holding current. The DRV8886ATPWP's 20 µA sleep current minimizes quiescent drain between activations, while the integrated current sense plus 1/16 microstepping yields the quiet, vibration-free operation required for residential and hospitality locks. AutoTune prevents the audible current ripple that would otherwise telegraph through the mechanical assembly during actuation.
おすすめ
POS / Receipt Printer Paper Feed
Receipt, label, and POS printers that move paper via stepper motors benefit from the DRV8886ATPWP's 1.4-A rms continuous output and integrated sense that fits on small PCBs. The HTSSOP-24 PowerPAD package enables compact designs while delivering the torque density needed for cut/feed mechanisms. AutoTune adapts to the variable load as the printer dispenses varying paper thickness without firmware retuning.
おすすめ
CCTV Camera Pan / Tilt / Zoom (PTZ)
CCTV PTZ cameras require smooth, low-noise motion across many discrete positions; the DRV8886ATPWP's 1/16 microstepping and integrated current sense produce the jitter-free positioning needed for surveillance quality. The 8-to-37-V VM range supports both 12-V and 24-V supply architectures, while 20 µA sleep current suits PoE-powered installations where standby power is budgeted. AutoTune suppresses the audible whine that would otherwise couple into the camera housing.
おすすめ
Office Automation Equipment
Document scanners, laminators, copy-machine paper paths, and shredders all use small bipolar steppers. The DRV8886ATPWP's AutoTune removes the per-product firmware tuning typically required when using fixed-decay drivers, accelerating time-to-market. With 1.4 A rms continuous output in HTSSOP-24, it fits the small-form-factor requirements of office equipment while delivering the smooth, quiet operation expected in workplace environments.
おすすめ
Automated Vending and Dispensing
Vending machines and product dispensers need reliable, low-maintenance stepper control in unattended installations. The DRV8886ATPWP's integrated current sensing reduces field failures from external sense-resistor drift, while AutoTune compensates for motor aging and varying mechanical loads. The 8-to-37-V VM range covers both 12-V and 24-V vending power buses; the HTSSOP-24 PowerPAD with at least 1 in² of copper sustains 1.4 A rms continuous at typical ambient.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: DRV8886ATPWP — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | DRV8886ATPWPR | DRV8886PWP | DRV8806PWPR |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | HTSSOP-24 (PWP) PowerPAD | HTSSOP-24 (PWP) PowerPAD - same | HTSSOP-24 (PWP) PowerPAD - same | HTSSOP-24 (PWP) - same footprint |
| Full-Scale Current | 2 A per H-bridge | 2 A per H-bridge | 2 A per H-bridge | 1.5 A per H-bridge (-25%) |
| VM Operating Range | 8 V to 37 V | 8 V to 37 V | 8 V to 37 V | 8 V to 38 V |
| AutoTune / Smart Tune | Yes (integrated) | Yes (integrated) | No (fixed decay modes) | No (fixed decay modes) |
| Integrated Current Sense | Yes (no external resistors) | Yes (no external resistors) | Yes (no external resistors) | No (external sense resistors required) |
| RDSon (HS+LS) | 550 mΩ | 550 mΩ | 550 mΩ | 1000 mΩ typical |
| Microstepping Levels | Full to 1/16 | Full to 1/16 | Full to 1/16 | Full to 1/8 |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +85°C |
主な差別化要因
- Integrated current sense eliminates external sense resistors （vs DRV8806PWPR)
- AutoTune (smart tune) decay algorithm （vs DRV8886PWP)
- Higher 2 A full-scale phase current capability （vs DRV8806PWPR)
設計ノート
Estimated: at DRV and TH = 1.4 A rms per phase, VM = 24 V, and average Vmid = 12 V, per-phase conduction loss is approximately I²RDSon × Duty ≈ 1.4² × 0.55 × 0.5 ≈ 0.54 W per H-bridge (1.08 W total). The HTSSOP-24 PowerPAD must be soldered to a copper pour of at least 1 in² (650 mm²) to achieve the datasheet-rated 1.4 A rms at 25°C ambient. For continuous above 1.5 A rms, add a topside heatsink or use the DRV8434ARGER which is rated higher.
Place a 0.1 µF X7R ceramic VCC bypass capacitor within 5 mm of pin 1 (VCC), and a 10 µF minimum bulk capacitor from VM (pins 4 and 5) to GND, using the PowerPAD as the primary ground return. Route the AOUT1/AOUT2 and BOUT1/BOUT2 traces as wide as practical and keep the charge-pump flying capacitor between CP1 and CP2 close to the IC. Follow the recommended TI HTSSOP PowerPAD land pattern with at least 4 thermal vias for adequate dissipation.
Common pitfalls with the DRV8886ATPWP include (1) forgetting to connect nSLEEP high through a pull-up resistor, leaving the part in 20 µA sleep; (2) not soldering the PowerPAD, which prevents the part from delivering the rated 1.4 A rms; (3) driving VREF higher than 3.3 V which can exceed programmed current; and (4) omitting the nFAULT pull-up, which masks fault conditions. Always read the TI DRV8886AT datasheet section on fault handling and ensure VCC ramps before VM to prevent in-rush current errors.
コンプライアンス情報
RoHS compliant and lead-free per TI product page. Temperature grade is Automotive (-40°C to +125°C) per the TI datasheet, but this part is not formally AEC-Q100 qualified; verify application requirements before automotive deployment.
