DRV8886ATPWPR - 37V 2A Stepper Driver w/ AutoTune | Texas Instruments
料号： DRV8886ATPWPR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.22 | $3.22 |
| 10 | $2.9 | $29.00 |
| 100 | $2.58 | $258.00 |
| 500 | $2.32 | $1,160.00 |
| 1,000 | $2.05 | $2,050.00 |
| 3,000 | $1.78 | $5,340.00 |
DRV8886ATPWPR 概述
A stepper motor driver is a type of brushed DC motor controller that sequences current through two phase windings to produce precise discrete angular steps. Within the broader taxonomy, stepper drivers are a subset of motor drivers / motion controllers, which themselves belong to power management ICs and discrete semiconductor driver stages. The DRV8886AT integrates two N-channel power MOSFET H-bridges, a microstepping indexer, and current-sense resistors on-chip, eliminating the bulk external sense resistors required by older stepper designs.
Key features include integrated current sensing (no external sense resistors), AutoTune adaptive decay that automatically selects between slow/mixed/fast decay modes per cycle, 1/16 microstepping for smooth low-vibration motion, internal 3.3 V reference for logic-level inputs, and comprehensive protection: overcurrent (OCP), overtemperature (TSD), undervoltage lockout (UVLO), and open-load detection. STEP/DIR interface simplifies connection to MCUs and FPGAs.
Architecturally, the device uses two synchronous N-channel H-bridges with low RDS(on) FETs driven from a single VM supply. The integrated current-sense amplifier feeds an internal PWM current-chopper that regulates each phase current at the IREF-programmed value. AutoTune dynamically tunes the decay mode to the motor's back-EMF, reducing audible noise and ripple torque versus fixed-decay designs.
Typical applications include 3D printers, CNC routers, textile and sewing machines, point-of-sale (POS) printers, video surveillance PTZ cameras, factory automation small stepper axes, and office automation equipment such as document scanners and label printers. Any 24-V-class bipolar stepper up to NEMA 17 size is a natural fit.
When designing with the DRV8886ATPWPR, ensure adequate PCB copper under the exposed PowerPAD for thermal dissipation - at 1.4 A rms the chip dissipates roughly 1 W and needs the thermal pad soldered to at least 1 oz copper pour. Decouple VM with a 100 nF ceramic close to the pins plus a bulk 47 µF electrolytic. Use the Sleep (nSLEEP) pin for idle current reduction.
This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and practical thermal/PCB design notes not consolidated in the manufacturer datasheet.
直接替换替代料： DRV8886ATPWPR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DRV8886ATPWPR （相同外形与封装尺寸） ——差异在于 Control Interface, MSL Level, Motor Type, Package, Microstepping Levels.
快速对比工具——选择替代料号进行并排对比：
DRV8886ATPWP
✅ 直接替换✓ 有现货
$2.04 / 个
查看数据手册 →DRV8886ATPWPT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DRV8884ATPWPR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DRV8876ATPWPR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DRV8873HPWPR
✅ 直接替换✓ 有现货
$1.86 / 个
查看数据手册 →DRV8886ATPWPR 最大额定值与电气特性
| Motor Type | Bipolar stepper (2-phase) |
| Number of Half-Bridges | 4 (2 H-bridges) |
| Operating Supply Voltage (VM) | 8 V to 37 V |
| Maximum Full-Scale Output Current | 2 A |
| RMS Output Current (24 V, TA = 25 C) | 1.4 A |
| Logic Supply Voltage (VCC) | 3 V to 5.5 V |
| Microstepping Levels | 1, 2, 4, 8, 16, 32 (up to 1/16 native) |
| Current Sensing | Integrated (no external sense resistors) |
| Decay Mode | AutoTune (smart-tune, adaptive mixed decay) |
| Control Interface | STEP / DIR (indexer built-in) |
| RDS(on) per FET (typ) | 750 mOhm (HS + LS, TA = 25 C) per TI datasheet |
| Protection Features | OCP, OTP/TSD, UVLO, open-load detect, fault flag (nFAULT) |
| 工作温度 | -40 C to +125 C |
| 封装 | HTSSOP-24 (PWP) with PowerPAD, 7.8 mm x 4.4 mm |
| 安装类型 | Surface Mount |
| MSL 等级 | 2 |
| RoHS / Pb-Free | Yes (compliant) |
DRV8886ATPWPR 引脚配置
| 引脚 1 | nSLEEP — Sleep mode input, active low (internal pull-down) |
| 引脚 2 | STEP — Step input; rising edge advances the indexer one microstep |
| 引脚 3 | DIR — Direction input; logic level sets winding current direction |
| 引脚 4 | M0 — Microstepping mode select bit 0 (with internal pull-down) |
| 引脚 5 | M1 — Microstepping mode select bit 1 (with internal pull-down) |
| 引脚 6 | IREF — Current reference; resistor to GND sets full-scale current |
| 引脚 7 | VCC — Logic supply input, 3 V to 5.5 V |
| 引脚 8 | GND — Logic ground |
| 引脚 9 | nFAULT — Fault output, open-drain, active low (OCP/OT/UVLO) |
| 引脚 10 | VM — Motor supply input, 8 V to 37 V |
| 引脚 11 | VM — Motor supply input (pin tied to VM pin 10 via PCB) |
| 引脚 12 | OUT1A — H-bridge 1 output A |
| 引脚 13 | OUT1B — H-bridge 1 output B |
| 引脚 14 | CP1 — Charge pump flying capacitor 1 |
| 引脚 15 | CP2 — Charge pump flying capacitor 2 |
| 引脚 16 | VCP — Charge pump reservoir cap |
| 引脚 17 | OUT2A — H-bridge 2 output A |
| 引脚 18 | OUT2B — H-bridge 2 output B |
| 引脚 19 | GND — Power ground (return for H-bridges) |
| 引脚 20 | VM — Motor supply input (pin tied to VM pin 10 via PCB) |
| 引脚 21 | TRQ — Torque DAC / current scaling input |
| 引脚 22 | DECAY — Decay mode select (AT version overrides with AutoTune) |
| 引脚 23 | EN — Enable input, active high (with internal pull-down) |
| 引脚 24 | V3P3 — Internal 3.3 V LDO bypass; 100 nF to GND |
典型应用
DRV8886ATPWPR 适用于 6 应用s: 3D Printer Stepper Axes, POS and Receipt Printers, Surveillance PTZ Camera Motors, CNC Router Small Axes, Textile and Sewing Machines, Office Document Scanners.
3D Printer Stepper Axes
The DRV8886ATPWPR fits 3D printer X/Y/Z/extruder stepper axes because its 1.4 A rms output matches NEMA 17 phase currents, and its 1/16 microstepping indexer eliminates the audible whine common on chopper drivers. AutoTune adaptive decay suppresses mid-band resonance that often appears on benchy prints at 60 mm/s. Place the IC adjacent to the stepper connector with VM decoupled by 100 nF ceramic plus 47 uF bulk, and tie the PowerPAD to a 1 square-inch ground pour for 1 W dissipation. STEP/DIR connection to an 8-bit MCU or 32-bit Cortex-M is straightforward via two GPIOs.
推荐
POS and Receipt Printers
Receipt printers use small bipolar steppers to advance paper and cut. The DRV8886ATPWPR's 1.4 A rms and 37 V VM tolerance handles a wide range of motor sizes, while its integrated current sensing shrinks the BOM versus sense-resistor designs. AutoTune is particularly valuable here because the paper-feed motor sees rapid start-stop loads that demand adaptive decay to avoid stall. The HTSSOP-24 PowerPAD footprint allows the IC to sit under the printer's main PCB without a heatsink, keeping the printer chassis slim.
推荐
Surveillance PTZ Camera Motors
Pan-tilt-zoom (PTZ) dome cameras need smooth, low-noise bipolar stepper motion to track subjects without stepping artifacts. The DRV8886ATPWPR's 1/16 microstepping plus AutoTune produces the silent motion that distinguishes premium PTZ cameras from entry-level models. The 37 V maximum VM supports 24 V industrial security bus rails, and the nSLEEP pin drops quiescent current for cameras that idle most of the day. Fault output (nFAULT) can interrupt the host SoC if a stall is detected, enabling automatic calibration routines.
推荐
CNC Router Small Axes
Hobby and prosumer CNC routers use NEMA 17 or NEMA 23 steppers on X, Y, Z axes. The DRV8886ATPWPR's 1.4 A rms output suits NEMA 17; for NEMA 23 axes the DRV8886ATPWPR can still drive them at reduced continuous torque. AutoTune eliminates the manual slow/fast decay tuning that traditionally plagued CNC builds, and STEP/DIR input is directly compatible with GRBL and Marlin firmware. The exposed PowerPAD provides enough thermal mass for 30-minute cuts without active cooling.
推荐
Textile and Sewing Machines
Industrial sewing machines and embroidery equipment use multiple bipolar steppers for needle positioning, fabric feed, and thread tension. The DRV8886ATPWPR's AutoTune keeps motor noise low enough for indoor operation, while its integrated current sensing reduces PCB complexity in machines that need 4-6 driver channels per board. The 8 V minimum VM allows battery-backed designs where the bus drops during power interruption, and 37 V maximum accepts rectified 24 VAC industrial supplies common in textile factories.
推荐
Office Document Scanners
Sheet-fed document scanners use a stepper to drive the roller assembly that pulls pages through the imaging path. The DRV8886ATPWPR's silent AutoTune decay and small HTSSOP-24 footprint allow it to be embedded directly on the scanner mainboard without acoustic isolation. nSLEEP support reduces standby power to meet Energy Star requirements for office equipment. The 1.4 A rms comfortably drives the small NEMA 14 or NEMA 11 motors typically used in document scanners, and the integrated fault output feeds back to the scanner's USB controller for jam detection.
推荐
推荐产品汇总
工程参考数据： DRV8886ATPWPR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DRV8886ATPWP | DRV8886ATPWPT | DRV8884ATPWPR | DRV8876ATPWPR | DRV8873HPWPR |
|---|---|---|---|---|---|---|
| Package | HTSSOP-24 (PWP) | HTSSOP-24 (PWP) - same | HTSSOP-24 (PWP) - same | HTSSOP-24 (PWP) - same | HTSSOP-24 (PWP) - same | HTSSOP-24 (PWP) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Full-Scale Current (peak) | 2 A | 2 A | 2 A | 1.5 A | 3.6 A | 10 A (dual HB) |
| RMS Current (24 V) | 1.4 A | 1.4 A | 1.4 A | 1.0 A | 2.5 A | 5 A |
| Supply Voltage (VM) | 8 V to 37 V | 8 V to 37 V | 8 V to 37 V | 8 V to 37 V | 4.5 V to 37 V | 4.5 V to 38 V |
| Current Sensing | Integrated | Integrated | Integrated | Integrated | Integrated | Integrated |
| Decay Mode | AutoTune | AutoTune | AutoTune | AutoTune | AutoTune | AutoTune |
| Microstepping (native) | 1/16 | 1/16 | 1/16 | 1/16 | 1/16 | n/a (dual HB driver) |
| Topology | Stepper (2x H-bridge + indexer) | Stepper (same) | Stepper (same) | Stepper (same) | Stepper (same) | Dual half-bridge (requires external indexer) |
关键差异点
- AutoTune adaptive decay eliminates manual tuning （对比 DRV8884ATPWPR)
- Higher continuous current at the same footprint （对比 DRV8873HPWPR)
- Lower current per axis with same AutoTune IP （对比 DRV8876ATPWPR)
设计说明
Estimated: At 1.4 A rms output and 24 V VM, the DRV8886ATPWPR dissipates approximately (2 x I_rms x RDS(on)) = 2 x 1.4 x 0.75 = 2.1 W worst-case in the HTSSOP-24 package (assuming RDS(on) = 0.75 ohm per datasheet). With theta_JA of approximately 35 C/W on a 1 oz 4-layer board with PowerPAD soldered, junction temperature rises 73 C above ambient. Place the device away from other heat sources and stitch the PowerPAD to a continuous top-layer ground pour of at least 1 square inch. For designs pushing 2 A continuous, add thermal vias under the PowerPAD to inner ground planes.
Decouple VM with a 100 nF X7R ceramic placed within 5 mm of the VM pins (10 and 11), plus a bulk 47 uF electrolytic or polymer cap on the same VM node. Place the IREF resistor (typically 10-100 kohm) within 2 mm of the IREF pin with a Kelvin connection to the GND pin. Route the four H-bridge outputs (OUT1A, OUT1B, OUT2A, OUT2B) as parallel pairs with symmetric widths to keep the H-bridge balanced. Charge-pump caps (CP1-CP2, VCP) must be 100 nF X7R within 3 mm of those pins.
Three pitfalls to avoid: (1) Forgetting to solder the PowerPAD - this leads to thermal runaway at moderate loads. (2) Driving the nSLEEP pin high then immediately issuing STEP pulses - allow the 1 ms wake-up time before stepping, or the first few pulses will be lost. (3) Selecting an IREF resistor that programs current above the motor's rated phase current - the integrated sense amplifier regulates at the IREF value regardless of motor rating, so over-current damages the motor windings. Calculate IREF per the datasheet: IREF (uA) = I_fullscale (mA) / 5 for the AT version.
Keep the STEP and DIR traces short (< 25 mm) and routed away from the H-bridge output traces. The 8 V minimum VM means USB-powered designs (5 V) cannot use this part directly - a boost converter or 12 V supply is required. For applications with > 30 V VM, add a TVS diode (e.g., SMAJ33A) from VM to GND close to the IC to absorb inductive transients from long motor cables.
合规信息
RoHS compliant and Pb-free per TI product page; REACH compliant per Avaq component comparison record dated 2026. Not AEC-Q100 qualified (not automotive grade); use DRV8886-Q1 variants for automotive designs.
