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Texas Instruments DRV8833RTYT
- Part No.:
- DRV8833RTYT
- Manufacturer:
- Texas Instruments
- Category:
- Motor Drivers, Controllers
- Package:
- 16-WQFN Exposed Pad
- Datasheet:
-
DRV8833RTYT.pdf
- Description:
- IC MOTOR DRIVER PAR 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:28,939
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Product details
Overview
DRV8833RTYT from Texas Instruments is a dual H-bridge motor driver IC designed for brushed DC or bipolar stepper motor control in space-constrained, battery-powered systems. It delivers 1.5-A RMS per bridge at 5 V, operates from 2.7 to 10.8 V, integrates PWM current regulation with 200-mV trip threshold, and features nSLEEP and open-drain nFAULT pins - used in compact robotics actuators and POS printer head positioning.
For engineers reviewing the DRV8833RTYT datasheet, DRV8833RTYT pinout, DRV8833RTYT application, or DRV8833RTYT equivalent, key selection considerations include its WQFN-16 (4.0 × 4.0 mm) thermally enhanced package, dual independent H-bridge operation with slow-decay PWM current control, integrated overcurrent/thermal/UVLO protection, and compatibility with 3.3-V or 5-V logic interfaces.
Technical Context
The DRV8833RTYT implements two fully independent NMOS H-bridge drivers with internal gate drive charge pump (VCP), fixed-frequency 50-kHz PWM current regulation, and programmable decay mode via input logic. Each bridge supports forward/reverse/brake/coast states and includes dedicated current sense inputs (AISEN/BISEN) referenced to a precise 200-mV internal comparator.
Protection is implemented at silicon level: analog overcurrent detection per FET (trip threshold ~2–3.3 A), thermal shutdown at 150–180°C, undervoltage lockout at 2.6 V with 90-mV hysteresis, and fault reporting via open-drain nFAULT. Sleep mode disables all bridges and gate drive, reducing supply current to 1.6–2.5 µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 10.8 V - supports single-cell Li-ion, 3×AA, or regulated 5-V rails without external LDO. |
| Output Current (RMS) | 1.5 A per H-bridge - sustained continuous drive capability at VM = 5 V and TA = 25°C with proper PCB thermal design. |
| Current Sense Threshold | 200 mV ±20 mV - sets motor winding current limit via external sense resistor (e.g., 0.133 Ω for 1.5-A chop). |
| PWM Frequency | 50 kHz - enables smooth motor control with minimal audible noise and sufficient resolution for torque regulation. |
| Thermal Resistance (RθJA) | 37.2 °C/W - measured in WQFN-16 package with JEDEC-standard 2-layer board, enabling ~2.1-W dissipation before thermal shutdown. |
| Logic Input Compatibility | 3.3-V and 5-V tolerant - AIN1/AIN2/BIN1/BIN2 accept 0–5.75 V; internal pulldowns eliminate need for external bias resistors. |
| Fault Reporting | Open-drain nFAULT - actively pulled low during UVLO, OCP, or TSD; requires external pullup for system-level fault monitoring. |
Pinout & Package
The DRV8833RTYT is housed in a 4.0 mm × 4.0 mm, 16-pin WQFN package with exposed PowerPAD™ thermal pad (GND-connected). The package supports high-power density layout with low thermal resistance (RθJB = 15.3 °C/W) when soldered to ≥4 thermal vias tied to internal ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN1, AIN2 | Bridge A control inputs | Digital logic interface defining AOUT1/AOUT2 state (forward/reverse/brake/coast); internal 500-kΩ pulldown. |
| BIN1, BIN2 | Bridge B control inputs | Independent logic interface for BOUT1/BOUT2; identical timing and voltage specs as A-side inputs. |
| nSLEEP | Global enable/disable | Active-low input; drives all bridges into Hi-Z and stops gate charge pump - reduces VM supply current to ≤2.5 µA. |
| nFAULT | Fault status output | Open-drain signal asserted low during overtemperature, overcurrent, or undervoltage events; requires external pullup. |
| AISEN, BISEN | Current sense return | Connect to low-side sense resistor; 200-mV comparator triggers PWM current limiting - tie to GND if unused. |
| AOUT1, AOUT2, BOUT1, BOUT2 | H-bridge power outputs | Drive motor windings directly; each pair forms one complete H-bridge with NMOS topology and body-diode recirculation. |
| VM | Main motor supply | Accepts 2.7–10.8 V; requires ≥10-µF ceramic bypass capacitor placed adjacent to pin for stable switching. |
| VCP | Charge pump supply | Boosts gate drive voltage; requires 0.01-µF X7R ceramic capacitor between VCP and VM for reliable high-side FET turn-on. |
| VINT | Internal regulator bypass | Provides clean 3.3-V internal supply; bypass with 2.2-µF capacitor to GND for stable logic and reference circuitry. |
| GND / PowerPAD | Power and thermal reference | Primary ground return and thermal path; PowerPAD must be soldered and connected to PCB ground plane via ≥4 thermal vias. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent H-bridges | Enables simultaneous control of two DC motors or one bipolar stepper - no shared timing or current path constraints. |
| Integrated 50-kHz PWM current regulation | Eliminates need for external microcontroller-based chopping; fixed frequency ensures predictable EMI profile and stable torque. |
| Programmable decay mode (slow/fast) | Controlled by input logic state - slow decay (brake) improves torque at low speed; fast decay (coast) enhances responsiveness. |
| Comprehensive protection suite | Hardware-level OCP, TSD, and UVLO operate independently per bridge - maintains partial functionality during single-fault events. |
| Low-power sleep mode | Reduces VM supply current to sub-µA range while preserving pin state - ideal for intermittent-motion applications like camera gimbals. |
| Thermally enhanced WQFN-16 | 4.0 × 4.0 mm footprint with PowerPAD enables >2× power density vs. TSSOP; RθJB = 15.3 °C/W supports higher ambient operation. |
Applications
| Compact Robotics Actuators | POS Printer Head Positioning |
|---|---|
Use Scenario: Bidirectional linear motion of robotic joint or gripper using small DC gearmotor. IC Role / Device Role / Timing Role: Dual H-bridge driver providing direction and PWM-controlled torque; nFAULT monitors stall conditions. Use Value: 1.5-A RMS per bridge enables direct drive of 12-mm-diameter coreless motors without external current amplification. |
Use Scenario: Precise bidirectional movement of thermal print head across paper path in portable receipt printers. IC Role / Device Role / Timing Role: Stepper motor driver (1-phase excitation) with current regulation ensuring consistent step torque and reduced heating. Use Value: 200-mV current sense threshold allows accurate 1.5-A winding current control using standard 0.133-Ω SMD resistor. |
| Video Security Camera Pan/Tilt | Handheld Gaming Controller Motors |
Use Scenario: Low-noise, low-vibration pan-and-tilt motion in indoor IP cameras powered by 5-V USB supply. IC Role / Device Role / Timing Role: Brushed DC motor driver with 50-kHz PWM for silent operation; nSLEEP disables motor between movements. Use Value: 37.2 °C/W RθJA enables continuous 1.5-A operation on 2-layer PCB without heatsink - critical for sealed enclosures. |
Use Scenario: Haptic feedback vibration motors in dual-motor gamepad triggers requiring independent intensity control. IC Role / Device Role / Timing Role: Dual-channel motor driver with separate PWM inputs (AIN1/BIN1) for independent left/right trigger actuation. Use Value: Independent bridge control eliminates crosstalk - enables asymmetric vibration patterns without firmware coordination. |
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 |
|---|---|---|---|
| TB6612FNG | Higher 1.2-A peak per channel (not RMS), no integrated current regulation - requires external PWM and sense amplifier. | Suitable for simpler open-loop DC motor control where precision current limiting is not required. | Choose TB6612FNG only if system already implements external current sensing and PWM generation; DRV8833RTYT provides tighter torque consistency. |
| MP6532DT-LF-Z | Lower 1.2-A RMS rating, 2.5–11-V supply, but includes built-in current regulation and same 50-kHz PWM frequency. | Valid alternative for cost-sensitive designs where 1.5-A capability is not mandatory and WQFN-16 footprint is acceptable. | Select MP6532DT-LF-Z if supply voltage extends beyond 10.8 V or if TI sourcing constraints apply; DRV8833RTYT offers superior thermal performance in same package. |
Compared with TB6612FNG and MP6532DT-LF-Z, the DRV8833RTYT uniquely combines 1.5-A RMS drive capability, integrated 200-mV current regulation, and 37.2 °C/W thermal resistance in a 4-mm WQFN - delivering higher sustained torque in thermally constrained handheld and embedded platforms.
Availability
DRV8833RTYT is available at Aetrix Electronics and suitable for compact robotics actuators, POS printer head positioning, and video security camera pan/tilt mechanisms requiring stable component supply and long-term production continuity.
Supply support for DRV8833RTYT 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 power management solutions.
The DRV8833RTYT belongs to TI's high-efficiency motor driver product line, engineered specifically for battery-powered, space-constrained motion systems requiring integrated current regulation, robust protection, and thermally optimized packaging.
FAQ
What is the maximum continuous output current per bridge for DRV8833RTYT?
The DRV8833RTYT delivers 1.5-A RMS per H-bridge under recommended operating conditions (VM = 5 V, TA = 25°C) with adequate PCB thermal design. Peak current capability is 2 A per bridge, but sustained operation above RMS rating risks thermal shutdown unless board-level heatsinking exceeds RθJA = 37.2 °C/W.
How does current regulation work in DRV8833RTYT?
DRV8833RTYT uses fixed-frequency (50 kHz) PWM current regulation with a 200-mV internal reference. When voltage across the external sense resistor (connected to AISEN or BISEN) exceeds 200 mV, the bridge switches to slow-decay mode until the next PWM cycle. Blanking time is fixed at 3.75 µs to avoid false triggering during switching transients.
Can DRV8833RTYT drive a bipolar stepper motor?
Yes, DRV8833RTYT can drive a bipolar stepper motor by configuring Bridge A for phase A and Bridge B for phase B. Its dual independent H-bridges support full-step, half-step, and microstepping (with external controller PWM) - verified in TI's DRV8833 reference designs for 2-phase stepper applications.
What is the purpose of the VCP pin on DRV8833RTYT?
The VCP pin supplies the charge pump that generates boosted gate drive voltage for the high-side NMOS FETs. It must be decoupled with a 0.01-µF X7R ceramic capacitor between VCP and VM. Without this capacitor, high-side FETs fail to fully enhance, increasing RDS(on) and causing excessive heating or current derating.
Does DRV8833RTYT require external components for basic operation?
Yes - minimum external components for functional operation include: 10-µF ceramic capacitor on VM, 0.01-µF capacitor between VCP and VM, 2.2-µF capacitor on VINT, and pullup resistor on nSLEEP (20–75 kΩ recommended). Current sense resistors are optional but required for regulated torque control.
DRV8833RTYT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-WQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- 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:
- NMOS
- Step Resolution:
- -
- Applications:
- DC Motors, General Purpose, Solenoids
- Current - Output:
- 1.5A
- Voltage - Supply:
- 2.7V ~ 10.8V
- Voltage - Load:
- 2.7V ~ 10.8V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (4x4)
DRV8833RTYT FAQ
1.How can I place an order for DRV8833RTYT through Aetrix?
Please submit a Request for Quotation (RFQ) for DRV8833RTYT 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 DRV8833RTYT reliable?
The price and inventory of DRV8833RTYT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DRV8833RTYT is usually 5 days.
3.What payment methods are accepted for DRV8833RTYT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DRV8833RTYT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DRV8833RTYT?
DRV8833RTYT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DRV8833RTYT 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 DRV8833RTYT?
For technical support, including DRV8833RTYT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DRV8833RTYT requirements.
6.How does Aetrix verify that DRV8833RTYT is sourced from the original manufacturer or authorized distributors?
All DRV8833RTYT 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 DRV8833RTYT meets industry standards.
7.What is the process for return or replacement of DRV8833RTYT?
All DRV8833RTYT units undergo pre-shipment inspection (PSI). If there is an issue with DRV8833RTYT, 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 DRV8833RTYT part is unused and in its original packaging.
Return procedure for DRV8833RTYT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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