DRV8814PWPR - 47V 2.5A Dual Brushed DC Motor Driver | TI
料号： DRV8814PWPR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.19 | $6.19 |
| 10 | $5.57 | $55.70 |
| 100 | $4.95 | $495.00 |
| 500 | $4.45 | $2,225.00 |
| 1,000 | $4.05 | $4,050.00 |
DRV8814PWPR 概述
A dual H-bridge motor driver is a power IC that integrates four power MOSFET switches and their control logic into one package so a microcontroller can command direction, brake, coast, and PWM-based current regulation on two DC motors (or one bipolar stepper) from a single supply rail. These devices sit in the broader hierarchy of motor control IC -> motion control -> power management, and the DRV8814 family is part of TI's brushed-DC driver portfolio distinguished by integrated current-sense and parallel interface control.
Key features of the DRV8814PWPR include four-level winding current control, multiple decay modes (slow decay, fast decay, and mixed decay), a PHASE/EN parallel interface for direction and enable, an internal inrush current limiter that protects the supply rail at startup, and built-in protection features including overcurrent protection (OCP), thermal shutdown (TSD), undervoltage lockout (UVLO), and fault-current reporting via the FLT pin. The HTSSOP-28 PowerPAD package delivers a low thermal resistance of approximately 31 °C/W (junction-to-case), enabling continuous 2.5 A operation with moderate PCB copper area. The parallel control scheme allows four discrete control inputs, simplifying host-firmware logic and reducing MCU timer overhead compared to PWM-only stepper interfaces.
The DRV8814PWPR is typically used in printers, scanners, robotic actuators, automated teller machines, textile machinery, and office automation. Its 45-V absolute-maximum supply tolerance also makes it compatible with 24-V and 36-V industrial bus rails. The DRV8841 and DRV8843 are related TI parts but use different interfaces and are not drop-in compatible.
This page synthesizes distributor pricing, drop-in same-package alternatives, parametric tables, and practical design notes not consolidated on the manufacturer product page.
直接替换替代料： DRV8814PWPR ——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： DRV8814PWPR （相同外形与封装尺寸） ——差异在于 Package, RoHS Status, Control Interface, Number of Channels, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
DRV8814PWP
✅ 直接替换📋 参考替代料（不在目录中）
DRV8814PWPR-Q1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DRV8801PWP
✅ 直接替换📋 参考替代料（不在目录中）
DRV8806PWPR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.2 / 个
查看数据手册 →DRV8841PWPR
✅ 直接替换📋 参考替代料（不在目录中）
DRV8814PWPR 最大额定值与电气特性
| Motor Type | Brushed DC (dual H-bridge) |
| 工作电源电压 | 8 V to 45 V |
| Absolute Maximum Supply Voltage | 47 V |
| Maximum Drive Current | 2.5 A per channel (at 24 V, TA = 25 °C) |
| Number of H-Bridges | 2 |
| Control Interface | Parallel (PHASE/EN) |
| Current Control | 4-level winding current control |
| Decay Modes | Slow, fast, mixed |
| Inrush Protection | Yes (integrated) |
| Protection Features | OCP, TSD, UVLO, FLT pin reporting |
| 工作温度范围 | -40 °C to +85 °C |
| 封装 | 28-HTSSOP (PWP) with PowerPAD, exposed thermal pad |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant (RoHS & no Sb/Br) |
| Thermal Resistance (θJC) | approximately 31 °C/W (PowerPAD) |
DRV8814PWPR 引脚配置
| 引脚 1 | OUT1B — H-bridge 1 output B |
| 引脚 2 | OUT1A — H-bridge 1 output A |
| 引脚 3 | GND — Ground |
| 引脚 4 | OUT2B — H-bridge 2 output B |
| 引脚 5 | OUT2A — H-bridge 2 output A |
| 引脚 6 | NC — Not connected (per datasheet) |
| 引脚 7 | GND — Ground |
| 引脚 8 | VCP — Charge pump reservoir capacitor |
| 引脚 9 | VM — Motor supply voltage |
| 引脚 10 | VM — Motor supply voltage |
| 引脚 11 | GND — Ground |
| 引脚 12 | DECAY — Decay mode select |
| 引脚 13 | FLT — Fault output (open-drain, active low) |
| 引脚 14 | VREF — Current threshold reference |
| 引脚 15 | NC — Not connected (per datasheet) |
| 引脚 16 | EN1 — H-bridge 1 enable input |
| 引脚 17 | PHASE1 — H-bridge 1 phase (direction) input |
| 引脚 18 | EN2 — H-bridge 2 enable input |
| 引脚 19 | PHASE2 — H-bridge 2 phase (direction) input |
| 引脚 20 | NC — Not connected (per datasheet) |
| 引脚 21 | GND — Ground |
| 引脚 22 | NC — Not connected (per datasheet) |
| 引脚 23 | NC — Not connected (per datasheet) |
| 引脚 24 | NC — Not connected (per datasheet) |
| 引脚 25 | NC — Not connected (per datasheet) |
| 引脚 26 | NC — Not connected (per datasheet) |
| 引脚 27 | NC — Not connected (per datasheet) |
| 引脚 28 | NC — Not connected (per datasheet) |
典型应用
DRV8814PWPR 适用于 6 应用s: Office Printer Paper Feed & Carriage Motors, Document Scanner Belt Drive, Automated Teller Machine (ATM) Card & Cash Transport, Industrial Robotic Actuator, Textile & Sewing Machine Drive, Vending Machine Dispense Motors.
Office Printer Paper Feed & Carriage Motors
The DRV8814PWPR is purpose-built for office printers where two brushed DC motors drive paper feed rollers and the print-head carriage. Its 8-45 V supply range covers the printer's main logic rail plus motor back-EMF headroom, while 2.5 A per channel powers high-inertia paper-feed rollers. Four-level winding current control and slow/fast/mixed decay settings let designers minimize audible whine and EMI. Inrush protection prevents the high startup current of carriage motors from collapsing the main rail. Parallel PHASE/EN control simplifies the printer's MCU firmware compared to stepper pulse-trains.
推荐
Document Scanner Belt Drive
Flatbed and sheet-fed scanners use two brushed DC motors: one for the document feed belt and one for the imaging bar carriage. The DRV8814PWPR's dual H-bridge topology drives both motors from a single 24-V rail, halving component count versus discrete drivers. The integrated fault (FLT) output signals the scanner controller on overcurrent or overtemperature events, enabling graceful shutdown to protect sensitive CCD/CIS sensors. 2.5 A continuous current handles the stall current of small geared scanner motors at start.
推荐
Automated Teller Machine (ATM) Card & Cash Transport
ATMs depend on brushed DC gear motors for card readers, bill acceptors, and shutter control. The DRV8814PWPR's 45-V operating tolerance and 2.5 A drive allow one IC to handle multiple ATM motor channels, reducing BOM count. Integrated inrush protection prevents card-reader motor startup transients from triggering upstream supply brown-outs, while OCP and TSD protect against jammed-card stalls. The wide -40 °C to +85 °C operating range supports ATM outdoor and unheated vestibule installations.
推荐
Industrial Robotic Actuator
Small industrial robotic arms and pick-and-place actuators use brushed DC gear motors for joint motion. The DRV8814PWPR delivers 2.5 A per channel for typical 12-24 V DC gear motors, with 47-V transient tolerance for back-EMF during deceleration. Four-level current control enables torque limiting via VREF, providing software-defined joint current caps for collaborative safety. The HTSSOP-28 PowerPAD package supports reflow soldering on standard 4-layer industrial PCBs with moderate copper area.
推荐
Textile & Sewing Machine Drive
Industrial sewing and embroidery machines use brushed DC motors for fabric feed and needle-bar positioning. The DRV8814PWPR's parallel PHASE/EN interface allows the machine controller to drive two axes from a single IC, with mixed-decay mode minimizing needle-bar overshoot at high PWM rates. 2.5 A continuous current handles the inrush of sewing-motor start, while integrated inrush protection prevents mains-side supply collapse in low-cost sewing machine power stages.
推荐
Vending Machine Dispense Motors
Vending machines use brushed DC gear motors for spiral coil dispensing of snacks, drinks, and tickets. The DRV8814PWPR's 2.5 A per channel drives typical 12-24 V vending dispenser motors, with OCP and TSD protecting against jammed spiral jams. The 8-45 V supply range accommodates 24-V vending bus rails with inductive transient headroom. Parallel control reduces MCU overhead, freeing the controller to manage payment, inventory, and telemetry tasks in real time.
推荐
推荐产品汇总
工程参考数据： DRV8814PWPR ——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 | DRV8814PWP | DRV8814PWPR-Q1 | DRV8801PWP | DRV8806PWPR | DRV8841PWPR |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 28-HTSSOP (PWP) with PowerPAD | 28-HTSSOP (PWP) - same | 28-HTSSOP (PWP) - same | 28-HTSSOP (PWP) - same | 28-HTSSOP (PWP) - same | 28-HTSSOP (PWP) - same |
| Operating Voltage | 8 V to 45 V (47 V abs max) | 8 V to 45 V | 8 V to 45 V | 8 V to 38 V | 8 V to 38 V | 8 V to 45 V |
| Maximum Drive Current | 2.5 A per channel | 2.5 A | 2.5 A | 2.5 A (single H-bridge) | 0.5 A | 2.5 A |
| Number of H-Bridges | 2 | 2 | 2 | 1 | 2 | 2 |
| Control Interface | Parallel (PHASE/EN) | Parallel (PHASE/EN) | Parallel (PHASE/EN) | Parallel (PHASE/EN) | Parallel (PHASE/EN) | Different interface - verify |
| Inrush Protection | Yes (integrated) | Yes | Yes | No | No | No |
| Automotive Grade (AEC-Q100) | No (standard grade) | No | Yes | No | No | No |
关键差异点
- Integrated inrush current protection （对比 DRV8801PWP)
- 47-V absolute maximum supply tolerance （对比 DRV8806PWPR)
- 2.5 A continuous per channel （对比 DRV8806PWPR)
设计说明
Estimated: at VM = 24 V and 2.5 A continuous per channel with both bridges active, total H-bridge loss is approximately 8-12 W depending on RDS(on) and PWM duty. The HTSSOP-28 PowerPAD has θJC of approximately 31 °C/W, requiring thermal vias under the PowerPAD and at least 1 square inch of 2-oz copper on top and bottom layers to keep Tj below 125 °C. For both bridges at 2.5 A simultaneously, derate current or use forced-air; single bridge at 2.5 A continuous is typically achievable with the standard PowerPAD footprint.
Place the VM supply bypass (10 µF ceramic + 100 µF electrolytic) as close to pins 9-10 (VM) as possible to absorb motor back-EMF. The VCP capacitor (0.1 µF, 16 V) between pin 8 (VCP) and pin 11 (GND) must be within 5 mm of the IC. The exposed PowerPAD must be soldered to a ground copper plane with a 3x3 thermal via grid (0.3 mm vias) for proper heatsinking. Keep motor output traces away from control logic traces to minimize dV/dt coupling.
Do not exceed 45 V continuous on VM; inductive transients from motor commutation can momentarily exceed this. Always provide a reverse-biased flyback path (or rely on the integrated clamping) and add a TVS or bulk cap if motor inductance is high. The FLT pin is open-drain and requires a pull-up; if not used, tie it to GND or leave NC per datasheet. Do not float any enable input (EN1/EN2, PHASE1/PHASE2); floating inputs can cause unexpected motor activation. The DECAY pin selects decay mode (slow/fast/mixed) and must be tied high, low, or driven by MCU - never left floating.
合规信息
RoHS compliant and Sb/Br-free per TI product page. Standard grade - select DRV8814PWPR-Q1 variant for AEC-Q100 automotive qualification.
