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Texas Instruments DRV8847PWR
- Part No.:
- DRV8847PWR
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
DRV8847PWR.pdf
- Description:
- 2A DUAL H-BRIDGE MOTOR DRIVER
- Quantity:
- Payment:
- Shipping:
Inventory:2,919
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Product details
Overview
DRV8847PWR from Texas Instruments is a dual H-bridge motor driver IC designed for industrial and appliance motor control, supporting 2.7–18 V supply, 1-A RMS per bridge (2-A in parallel mode), 1000 mΩ total RDS(ON) at 25°C, and 1.7 µA sleep current. It drives two brushed DC motors, one bipolar stepper, or solenoid loads in refrigerators, ePOS printers, and stage lighting.
For engineers reviewing the DRV8847PWR datasheet, DRV8847PWR pinout, DRV8847PWR application, or DRV8847PWR equivalent, this page delivers verified electrical specs, thermal performance data, interface modes (4-pin/2-pin/parallel/independent), torque scalar control, and fault diagnostics via nFAULT - all confirmed for the PWR (HTSSOP-16 PowerPAD™) package.
Technical Context
The DRV8847PWR integrates two N-channel H-bridges with integrated current regulation using fixed 20-µs off-time PWM and adjustable trip voltage (140–160 mV at 100% torque, 63.75–86.25 mV at 50%). Its MODE pin selects among four control interfaces: 4-pin logic, 2-pin direction/PWM, parallel bridge, or independent half-bridge operation.
Protection architecture includes VM undervoltage lockout (2.7 V rising, 2.4 V falling), overcurrent detection (1.6–2 A trip), open-load detection (high-side ≥1.3 V, low-side ≤1.2 V), thermal shutdown (150–180 °C), and fault reporting via open-drain nFAULT with external pullup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 18 V - supports wide-input battery and adapter-powered systems without external regulators |
| Output Current (RMS) | 1 A per H-bridge at 25°C ambient - sufficient for small DC motors and stepper phases in home appliances |
| RDS(ON) (HS + LS) | 1000 mΩ at VM > 5 V, 25°C - enables low conduction loss and <1 W dissipation at 1 A |
| Sleep Current | 1.7 µA at VM = 12 V, 25°C - allows always-on system monitoring with negligible standby drain |
| Current Regulation | Fixed 20-µs off-time with 140–160 mV internal VTRIP - provides stable peak-current limiting without external timing components |
| Fault Reporting | Open-drain nFAULT pin - signals UVLO, overcurrent, open load, and thermal faults with active-low assertion |
| Logic Compatibility | 1.8 V / 3.3 V / 5 V inputs - interoperable with microcontrollers across voltage domains without level shifters |
Pinout & Package
DRV8847PWR is packaged in a 16-pin HTSSOP (PowerPAD™) with 5.00 mm × 4.40 mm body size and exposed thermal pad for enhanced heat dissipation (RθJA = 46.5 °C/W). The thermal pad must be soldered to PCB ground plane per TI layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| nSLEEP | Input | Active-high enable; pulls device into 1.7 µA sleep mode when low - critical for power-gated motor subsystems |
| IN1–IN4 | Inputs | Half-bridge control signals; configure mode (4-pin, 2-pin, parallel, or independent) via MODE and IN3 |
| MODE | Tri-state input | Selects interface mode: high = 4-pin, low = 2-pin, hi-Z = parallel/independent - no external pull required |
| TRQ | Input | Torque scalar control: logic high reduces current trip point to 50%, enabling dynamic power scaling |
| ISEN12 / ISEN34 | Outputs | Current sense nodes for full-bridge 1–2 and 3–4; connect to external sense resistors for regulation |
| OUT1–OUT4 | Outputs | NMOS H-bridge outputs; each pair forms a full bridge - OUT1/OUT2 = Bridge A, OUT3/OUT4 = Bridge B |
| nFAULT | Open-drain output / input (DRV8847S only) | Active-low fault indicator requiring external pullup; asserts on UVLO, OCP, open load, or thermal shutdown |
| GND / VM | Power terminals | GND connects to PCB ground plane and thermal pad; VM supplies motor power (bypass with 0.1 µF ceramic + 10 µF bulk) |
Key Features
| Feature | Design Value |
|---|---|
| Dual H-bridge topology | Two independent NMOS full bridges support simultaneous bidirectional control of two DC motors or one bipolar stepper |
| Configurable interface modes | Single MODE pin selects 4-pin logic, 2-pin direction/PWM, parallel bridge, or independent half-bridge operation - no firmware rework needed |
| Torque scalar (TRQ) | Digital input scales current regulation trip point to 50%, reducing motor power and heat during idle or low-torque phases |
| Integrated protection suite | UVLO, cycle-by-cycle overcurrent, open-load detection, thermal shutdown, and fault flagging - eliminates need for discrete protection circuitry |
| Low-power sleep mode | 1.7 µA quiescent current at 12 V enables energy-sensitive applications like smart meters and battery-operated appliances |
Applications
| Refrigerator Damper Control | ePOS Printer Motor Drive |
|---|---|
Use Scenario: Precise positioning of air dampers to regulate compartment temperature in variable-speed compressors. IC Role / Device Role / Timing Role: Dual H-bridge driver controlling two 12-V brushed DC damper actuators with independent direction/speed via PWM. Use Value: 1-A RMS per bridge sustains continuous duty cycling; low RDS(ON) minimizes self-heating in enclosed compartments. |
Use Scenario: Bidirectional paper feed and cutter actuation in compact electronic point-of-sale receipt printers. IC Role / Device Role / Timing Role: Single-chip solution driving stepper for paper advance and DC motor for cutter blade - both from one 5-V rail. Use Value: 2.7–18 V range accommodates varied input sources; nFAULT enables real-time jam detection and recovery. |
| Stage Lighting Pan/Tilt | Smart Meter Actuator |
Use Scenario: Smooth, quiet angular positioning of LED fixtures using microstepping-capable bipolar stepper motors. IC Role / Device Role / Timing Role: Bipolar stepper driver with current regulation and torque scalar for adaptive load compensation during acceleration. Use Value: Fixed 20-µs off-time ensures consistent microstep current decay; TRQ pin enables torque reduction during hold phase. |
Use Scenario: Remote-controlled circuit breaker tripping and reset in residential smart meters with battery backup. IC Role / Device Role / Timing Role: Solenoid driver delivering short high-current pulses (2-A peak) to mechanical latching relays. Use Value: Parallel-mode capability delivers 2-A RMS with proper heatsinking; sleep current <2 µA preserves battery life for years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual H-bridge motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8837CPRR | Single H-bridge, 1.8-A peak, 3.0–11 V supply, no current sense or torque scalar | Limited to one motor; lacks open-load detection and nFAULT reporting | Choose for cost-sensitive single-motor designs where diagnostics and dual drive are unnecessary |
| DRV8412DDW | Dual H-bridge, 7-A peak, 8–48 V supply, SPI interface, higher RDS(ON) (190 mΩ HS+LS) | Targets industrial pumps/fans; requires external current sense and SPI host | Choose for high-current (>2 A) or higher-voltage (>18 V) applications needing robust thermal design |
Compared with DRV8847PWR, DRV8837CPRR offers lower integration and no diagnostics, while DRV8412DDW provides higher current and voltage headroom at the cost of complexity and board space - DRV8847PWR uniquely balances 1-A dual drive, embedded regulation, and ultra-low sleep current in a thermally optimized HTSSOP package.
Availability
DRV8847PWR is available at Aetrix Electronics and suitable for refrigerator damper control, ePOS printer mechanisms, and smart meter actuation requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability validation.
Supply support for DRV8847PWR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in motor control ICs and industrial power management.
The DRV8847 product line delivers highly integrated, thermally robust dual H-bridge drivers for home appliance, industrial automation, and mechatronic systems demanding precise current control and comprehensive fault protection.
FAQ
What is the maximum continuous output current per bridge for DRV8847PWR?
The DRV8847PWR supports 1-A RMS continuous output current per H-bridge at TA = 25°C with adequate PCB copper area and thermal vias. In parallel mode (bridges combined), it delivers 2-A RMS with proper heatsinking - confirmed by TI's thermal metrics (RθJA = 46.5 °C/W for HTSSOP) and electrical characteristics tables.
Does DRV8847PWR support I²C communication?
No, DRV8847PWR does not support I²C. Only the DRV8847S variant includes I²C interface with SDA/SCL pins and register-based diagnostics. The DRV8847PWR uses pin-strapped digital control (IN1–IN4, MODE, TRQ) and reports faults solely via the nFAULT pin.
How does the torque scalar (TRQ) pin function on DRV8847PWR?
When TRQ is driven high, the DRV8847PWR reduces its internal current-sense trip voltage from 140–160 mV to 63.75–86.25 mV, effectively scaling output current to 50% of nominal. This feature enables dynamic torque reduction during holding or low-load conditions without changing PWM duty cycle.
What package type is DRV8847PWR supplied in?
DRV8847PWR is supplied exclusively in the 16-pin HTSSOP PowerPAD™ package (PWP suffix), measuring 5.00 mm × 4.40 mm with an exposed thermal pad. This package provides superior thermal performance (RθJA = 46.5 °C/W) compared to the TSSOP variant and requires soldering the thermal pad to the PCB ground plane.
What protection features are integrated into DRV8847PWR?
The DRV8847PWR integrates VM undervoltage lockout (2.7 V rising), cycle-by-cycle overcurrent protection (1.6–2 A trip), open-load detection (using high-side ≥1.3 V and low-side ≤1.2 V thresholds), thermal shutdown (150–180 °C), and fault indication via the open-drain nFAULT pin - all confirmed in Sections 6.5 and 7.1 of the official datasheet.
DRV8847PWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (4)
- Interface:
- PWM
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 2A
- Voltage - Supply:
- 2.7V ~ 18V
- Voltage - Load:
- 2.7V ~ 18V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
DRV8847PWR FAQ
1.How can I place an order for DRV8847PWR through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8847PWR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DRV8847PWR reliable?
The price and inventory of DRV8847PWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8847PWR is usually 5 days.
3.What payment methods are accepted for DRV8847PWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8847PWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8847PWR?
DRV8847PWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8847PWR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DRV8847PWR?
For technical support, including DRV8847PWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8847PWR requirements.
6.How does Aetrix verify that DRV8847PWR is sourced from the original manufacturer or authorized distributors?
All DRV8847PWR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DRV8847PWR meets industry standards.
7.What is the process for return or replacement of DRV8847PWR?
All DRV8847PWR units undergo pre-shipment inspection (PSI). If there is an issue with DRV8847PWR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DRV8847PWR part is unused and in its original packaging.
Return procedure for DRV8847PWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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