L9960TR - Dual H-Bridge Motor Driver | STMicroelectronics | Automotive
MPN: L9960TR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.85 | $4.85 |
| 10 | $4.36 | $43.60 |
| 100 | $3.88 | $388.00 |
| 500 | $3.49 | $1,745.00 |
| 1,000 | $3.1 | $3,100.00 |
Drop-in alternatives for L9960TR β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
L9960T
β Drop-Inπ Reference alternative (not in catalog)
L9960
β Drop-Inπ Reference alternative (not in catalog)
L9960TR Maximum Ratings & Electrical Characteristics
| Supply Voltage Range | 4.5 V to 28 V |
| Output Current per Channel | 6 A (continuous) |
| Number of Channels | 2 (dual H-bridge) |
| Control Interface | SPI |
| PWM Frequency | Up to 20 kHz |
| RDS(on) per MOSFET | 0.15 ohm (typical) |
| Quiescent Current (Standby) | 5 uA (typical) |
| Operating Temperature Range | -40C to +150C |
| Package | PowerSSO-36 |
| Mounting Type | Surface Mount |
| AEC-Q100 Qualification | Yes (Grade 0) |
| Protection Features | UVLO, OCP, OTP, OVP |
| Diagnostic Output | SPI fault register |
| Slew Rate Control | Programmable via SPI |
| RoHS Status | Compliant |
L9960TR Pin Configuration
| Pin 1 | OUT1 β H-bridge 1 output |
| Pin 2 | OUT2 β H-bridge 1 output |
| Pin 3 | VS β Supply voltage |
| Pin 4 | GND β Ground |
| Pin 5 | OUT3 β H-bridge 2 output |
| Pin 6 | OUT4 β H-bridge 2 output |
| Pin 7 | VCC β Logic supply |
| Pin 8 | SCLK β SPI clock |
| Pin 9 | SDI β SPI data input |
| Pin 10 | SDO β SPI data output |
| Pin 11 | CSN β SPI chip select (active low) |
| Pin 12 | EN β Enable (active high) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
L9960TR is suitable for 6 applications: Automotive DC Motor Control, Industrial Automation, Robotics, Medical Equipment, Aerospace and Drones, Home Appliances.
Automotive DC Motor Control
The L9960TR is ideal for automotive DC motor control applications such as window lifts, seat adjustment, and mirror positioning. Its wide supply voltage range (4.5V to 28V) accommodates 12V automotive systems, while the 6A per channel output current handles inrush currents during motor startup. The SPI interface enables precise current control and diagnostic feedback, allowing the ECU to monitor motor health and detect faults. The AEC-Q100 Grade 0 qualification ensures reliable operation under extreme temperatures (-40C to +150C) and vibration. In a typical window lift application, the L9960TR drives a permanent magnet DC motor with PWM control to regulate speed and direction. The device's low RDS(on) (0.15 ohm) minimizes power dissipation, reducing heat generation in the cabin. The integrated protection features (UVLO, OCP, OTP) safeguard the motor and wiring against short circuits and overloads. Compared to discrete H-bridge solutions, the L9960TR simplifies design and reduces component count, improving reliability and reducing assembly cost.
Recommended
Industrial Automation
In industrial automation, the L9960TR drives conveyor belts, robotic actuators, and valve controls. Its 4.5V to 28V supply range supports both 12V and 24V industrial systems, and the 6A per channel output drives small to medium DC motors. The SPI interface allows integration with PLCs or industrial microcontrollers for real-time monitoring and control. The device's PWM capability up to 20 kHz enables smooth speed control and reduces audible noise. The robust protection features (OCP, OTP, UVLO) ensure safe operation in harsh industrial environments with dust, moisture, and temperature fluctuations. In a conveyor belt application, the L9960TR controls the motor speed and direction based on sensor inputs, with the SPI providing diagnostic data for predictive maintenance. The low quiescent current (5 uA) in standby mode reduces energy consumption when the system is idle. The PowerSSO-36 package with exposed pad facilitates heat dissipation, allowing continuous operation at high currents without external heatsinks in many cases.
Recommended
Robotics
The L9960TR is well-suited for robotics applications, including mobile robots, robotic arms, and drones. Its dual H-bridge configuration allows driving two DC motors or one stepper motor, providing flexibility in robot locomotion and actuation. The 6A per channel output current handles the high torque requirements of robot joints, while the SPI interface enables precise current control for smooth motion. The wide supply voltage range (4.5V to 28V) accommodates various battery configurations, from 2S LiPo (7.4V) to 6S LiPo (22.2V). The device's low RDS(on) (0.15 ohm) maximizes battery life by reducing power losses. In a mobile robot, the L9960TR drives the wheel motors with PWM control, and the SPI provides real-time current feedback for obstacle detection and torque limiting. The protection features (OCP, OTP) prevent damage from motor stalls or wiring faults. The compact PowerSSO-36 package saves board space, essential for space-constrained robot designs.
Recommended
Medical Equipment
The L9960TR is used in medical equipment such as hospital beds, infusion pumps, and diagnostic devices that require precise motor control. Its low quiescent current (5 uA) is critical for battery-powered portable devices, extending operational life. The SPI interface allows for accurate speed and position control, essential for infusion pump accuracy. The device's wide supply voltage range (4.5V to 28V) supports various power sources, including batteries and AC-DC adapters. The AEC-Q100 qualification, while automotive-focused, also indicates high reliability suitable for medical applications. In a hospital bed, the L9960TR drives the bed's adjustment motors with smooth PWM control, and the diagnostic features alert the system to motor faults. The protection features (OCP, OTP) ensure patient safety by preventing overheating or overcurrent conditions. The PowerSSO-36 package's thermal performance allows continuous operation in enclosed medical devices without active cooling.
Recommended
Aerospace and Drones
The L9960TR is suitable for aerospace and drone applications, including actuator control for flight surfaces and gimbal motors. Its high current capability (6A per channel) drives brushless DC motors (via external commutation) or stepper motors for precise positioning. The wide supply voltage range (4.5V to 28V) supports various battery configurations used in drones. The device's low weight and compact PowerSSO-36 package are advantageous for weight-sensitive applications. The SPI interface enables integration with flight controllers for real-time motor control and telemetry. In a drone gimbal, the L9960TR drives the gimbal motors with smooth PWM control, and the diagnostic features help detect motor stalls. The protection features (OCP, OTP) prevent damage during high-load maneuvers. The AEC-Q100 Grade 0 qualification ensures operation in extreme temperatures encountered at high altitudes.
Recommended
Home Appliances
The L9960TR is used in home appliances such as washing machines, dishwashers, and robotic vacuum cleaners. Its dual H-bridge configuration drives multiple motors, such as the wash drum and water pump in a washing machine. The 6A per channel output current handles the high starting currents of appliance motors. The SPI interface allows for energy-efficient operation by optimizing motor control algorithms. The device's wide supply voltage range (4.5V to 28V) accommodates various appliance power supplies. The low quiescent current (5 uA) reduces standby power consumption, meeting energy efficiency standards. In a robotic vacuum, the L9960TR drives the wheel motors and the main brush motor, with PWM control for variable speed. The diagnostic features help detect brush jams or wheel stalls. The protection features (OCP, OTP) ensure safe operation in household environments.
Recommended
Recommended Products Summary
Engineering reference data for L9960TR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | L9960T | L9960 | DRV8876 | MC33887 |
|---|---|---|---|---|---|
| Package | PowerSSO-36 | PowerSSO-36 - same | PowerSSO-36 - same | HTSSOP-16 - different | SOIC-28 - different |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | Texas Instruments | NXP Semiconductors |
| Supply Voltage Range | 4.5V to 28V | 4.5V to 28V | 4.5V to 28V | 4.5V to 37V | 5V to 28V |
| Output Current per Channel | 6A | 6A | 6A | 3.5A | 5A |
| Control Interface | SPI | SPI | SPI | PWM/GPIO | SPI |
| RDS(on) per MOSFET | 0.15 ohm | 0.15 ohm | 0.15 ohm | 0.25 ohm | 0.2 ohm |
| AEC-Q100 Qualification | Yes (Grade 0) | Yes (Grade 0) | Yes (Grade 0) | No | Yes (Grade 0) |
| Quiescent Current (Standby) | 5 uA | 5 uA | 5 uA | 1 uA | 10 uA |
Key Differentiators
- Higher output current (6A) compared to DRV8876 (3.5A) (vs DRV8876)
- AEC-Q100 Grade 0 qualification (vs DRV8876)
- SPI interface for advanced diagnostics (vs MC33887)
Design Notes
The L9960TR can dissipate significant power at high currents. For example, at 6A per channel with RDS(on) of 0.15 ohm, each channel dissipates 5.4W (I^2 * R). With two channels, total dissipation can reach 10.8W. The PowerSSO-36 package has a thermal resistance of 30 C/W (theta_JA) with proper PCB copper area. Ensure at least 2 square inches of copper on the exposed pad for adequate heat sinking. For continuous operation above 3A per channel, consider adding a heatsink or forced air cooling.
Place 100nF and 10uF ceramic capacitors close to the VS and VCC pins to decouple high-frequency noise. Use a star-ground topology to minimize ground bounce between the power stage and logic. Route the SPI lines (SCLK, SDI, SDO, CSN) away from high-current traces to prevent noise coupling. Keep the exposed pad connected to a large copper pour for thermal and electrical grounding.
Do not exceed the absolute maximum supply voltage of 40V, as this can damage the device. Ensure the logic supply (VCC) is within the specified range (typically 3.3V or 5V) to avoid improper SPI communication. When using PWM control, set the slew rate via SPI to match the motor's inductance to minimize EMI. Always enable the device (EN pin high) before sending PWM signals to avoid undefined states.
Compliance Information
RoHS compliant per STMicroelectronics product page. AEC-Q100 Grade 0 qualified for automotive applications.
