DRV8814PWPR - 47V 2.5A Dual Brushed DC Motor Driver | TI
N.º de pieza: DRV8814PWPR ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 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 Descripción general
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.
Alternativas directas para DRV8814PWPR — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con DRV8814PWPR (mismo factor de forma y huella) — difiere en Package, RoHS Status, Control Interface, Number of Channels, Operating Temperature.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
DRV8814PWP
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
DRV8814PWPR-Q1
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
DRV8801PWP
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
DRV8806PWPR
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$3.2 / unidad
Ver hoja de datos →DRV8841PWPR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
DRV8814PWPR Valores máximos y características eléctricas
| Motor Type | Brushed DC (dual H-bridge) |
| Tensión de alimentación de funcionamiento | 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 |
| Rango de temperatura de funcionamiento | -40 °C to +85 °C |
| Encapsulado | 28-HTSSOP (PWP) with PowerPAD, exposed thermal pad |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant (RoHS & no Sb/Br) |
| Thermal Resistance (θJC) | approximately 31 °C/W (PowerPAD) |
Configuración de pines de DRV8814PWPR
| Pin 1 | OUT1B — H-bridge 1 output B |
| Pin 2 | OUT1A — H-bridge 1 output A |
| Pin 3 | GND — Ground |
| Pin 4 | OUT2B — H-bridge 2 output B |
| Pin 5 | OUT2A — H-bridge 2 output A |
| Pin 6 | NC — Not connected (per datasheet) |
| Pin 7 | GND — Ground |
| Pin 8 | VCP — Charge pump reservoir capacitor |
| Pin 9 | VM — Motor supply voltage |
| Pin 10 | VM — Motor supply voltage |
| Pin 11 | GND — Ground |
| Pin 12 | DECAY — Decay mode select |
| Pin 13 | FLT — Fault output (open-drain, active low) |
| Pin 14 | VREF — Current threshold reference |
| Pin 15 | NC — Not connected (per datasheet) |
| Pin 16 | EN1 — H-bridge 1 enable input |
| Pin 17 | PHASE1 — H-bridge 1 phase (direction) input |
| Pin 18 | EN2 — H-bridge 2 enable input |
| Pin 19 | PHASE2 — H-bridge 2 phase (direction) input |
| Pin 20 | NC — Not connected (per datasheet) |
| Pin 21 | GND — Ground |
| Pin 22 | NC — Not connected (per datasheet) |
| Pin 23 | NC — Not connected (per datasheet) |
| Pin 24 | NC — Not connected (per datasheet) |
| Pin 25 | NC — Not connected (per datasheet) |
| Pin 26 | NC — Not connected (per datasheet) |
| Pin 27 | NC — Not connected (per datasheet) |
| Pin 28 | NC — Not connected (per datasheet) |
Aplicaciones típicas
DRV8814PWPR es adecuado para 6 aplicacións: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para DRV8814PWPR — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | 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 |
Diferenciadores clave
- Integrated inrush current protection (frente a DRV8801PWP)
- 47-V absolute maximum supply tolerance (frente a DRV8806PWPR)
- 2.5 A continuous per channel (frente a DRV8806PWPR)
Notas de diseño
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.
Información de cumplimiento
RoHS compliant and Sb/Br-free per TI product page. Standard grade - select DRV8814PWPR-Q1 variant for AEC-Q100 automotive qualification.
