L9960 - Dual H-Bridge Motor Driver | STMicroelectronics | Automotive
MPN: L9960 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.5 | $8.50 |
| 10 | $7.65 | $76.50 |
| 100 | $6.8 | $680.00 |
| 500 | $6.12 | $3,060.00 |
| 1,000 | $5.44 | $5,440.00 |
Drop-in alternatives for L9960 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:
L9960-TR
β Drop-Inβ 99,999 In Stock
$2.88 / Unit
View Datasheet βL9958
β‘ Same Packageβ 99,999 In Stock
$2.7 / Unit
View Datasheet βL9960 Maximum Ratings & Electrical Characteristics
| Supply Voltage Range | 4.5 V to 28 V |
| Output Current per Bridge | 8 A (max) |
| Number of H-Bridges | 2 |
| RDS(on) per Switch | 0.15 ohm (typ) |
| Control Interface | SPI |
| Current Sense ADC | 10-bit |
| PWM Frequency | 20 kHz (max) |
| Operating Temperature | -40C to +150C |
| Package | TQFP-48 (EP) |
| Mounting Type | Surface Mount |
| Protection Features | Overcurrent, Thermal Shutdown, Undervoltage Lockout |
| Diagnostic Output | SPI fault flags |
| Quiescent Current | [DATA_NEEDED: Quiescent current] |
| Logic Supply Voltage | 3.3 V to 5 V |
| RoHS Status | Compliant |
L9960 Pin Configuration
| Pin 1 | VS β Motor supply voltage |
| Pin 2 | OUT1 β H-bridge 1 output |
| Pin 3 | OUT2 β H-bridge 1 output |
| Pin 4 | GND β Ground |
| Pin 5 | OUT3 β H-bridge 2 output |
| Pin 6 | OUT4 β H-bridge 2 output |
| Pin 7 | VS β Motor supply voltage |
| Pin 8 | VDD β Logic supply voltage |
| Pin 9 | SCK β SPI clock |
| Pin 10 | SDI β SPI data input |
| Pin 11 | SDO β SPI data output |
| Pin 12 | CSN β SPI chip select (active low) |
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
L9960 is suitable for 6 applications: Automotive Body Control Module, Electric Power Steering, HVAC Actuators, Industrial Automation, Medical Equipment, Robotics.
Automotive Body Control Module
The L9960 drives window lifters, seat adjusters, and mirror motors with precise current control. Its 8 A per bridge capability handles high inrush currents, while the SPI interface enables diagnostics and fault reporting. The AEC-Q100 qualification ensures reliability in automotive environments.
Recommended
Electric Power Steering
The L9960 provides high-current drive for the steering assist motor. Its low RDS(on) minimizes power loss, and the 10-bit current sense ADC enables precise torque control. The device's thermal shutdown protects against overload conditions.
Recommended
HVAC Actuators
The L9960 controls air flap actuators in HVAC systems. Its PWM current regulation allows smooth and quiet operation, while the SPI interface provides feedback on actuator position and health. The wide supply voltage range supports both 12V and 24V systems.
Recommended
Industrial Automation
The L9960 drives conveyor belts and robotic arms in industrial settings. Its robust protection features and wide temperature range ensure reliable operation in harsh environments. The SPI interface allows integration with PLCs and industrial networks.
Recommended
Medical Equipment
The L9960 drives pumps and actuators in medical devices such as infusion pumps and surgical tables. Its precise current control and diagnostic capabilities ensure safe and accurate operation. The device's low power dissipation is beneficial for battery-powered equipment.
Recommended
Robotics
The L9960 drives DC motors in robotic platforms, providing high torque and precise speed control. Its SPI interface enables real-time current monitoring for closed-loop control. The compact TQFP-48 package is suitable for space-constrained designs.
Recommended
Recommended Products Summary
Engineering reference data for L9960 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | L9960-TR | L9958 | DRV8701 |
|---|---|---|---|---|
| Package | TQFP-48 (EP) | TQFP-48 (EP) - same | TQFP-48 (EP) - same | HTSSOP-28 - different |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | Texas Instruments |
| Supply Voltage Range | 4.5 V to 28 V | 4.5 V to 28 V | 4.5 V to 28 V | 4.5 V to 45 V |
| Output Current per Bridge | 8 A | 8 A | 5 A | 2.5 A |
| Number of H-Bridges | 2 | 2 | 2 | 1 |
| RDS(on) per Switch | 0.15 ohm | 0.15 ohm | 0.2 ohm | 0.25 ohm |
| Control Interface | SPI | SPI | SPI | PWM |
| Current Sense ADC | 10-bit | 10-bit | 10-bit | None |
Key Differentiators
- Higher output current per bridge (vs L9958)
- Integrated 10-bit current sense ADC (vs DRV8701)
- Dual H-bridge in a single package (vs DRV8701)
Design Notes
At 8 A per bridge and 0.15 ohm RDS(on), each bridge dissipates approximately 9.6 W (P = I^2 * R). The TQFP-48 (EP) package has a thermal resistance of about 25 C/W (theta_JA) with proper PCB design. Ensure a large copper area and thermal vias under the exposed pad to keep junction temperature below 150C.
Place 100 nF ceramic capacitors close to each VS pin and a 10 uF bulk capacitor on the motor supply. For the logic supply, use a 100 nF capacitor near VDD. Route SPI lines with controlled impedance and keep them away from high-current motor traces to avoid noise coupling.
Do not exceed the absolute maximum supply voltage of 28 V. Ensure the SPI interface is properly initialized before enabling the bridges. Use a pull-up resistor on the CSN pin to prevent spurious SPI communication during power-up. Also, avoid enabling both high-side and low-side switches simultaneously to prevent shoot-through.
Compliance Information
AEC-Q100 qualified per STMicroelectronics product page. RoHS compliant. Halogen-free status not specified in available data.
