L9369-TR - Automotive H-Bridge Driver | STMicroelectronics
MPN: L9369-TR β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.75 | $8.75 |
| 10 | $7.95 | $79.50 |
| 100 | $7.15 | $715.00 |
| 500 | $6.45 | $3,225.00 |
| 1,000 | $5.85 | $5,850.00 |
Drop-in alternatives for L9369-TR 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:
L9369
β Drop-Inβ 99,999 In Stock
$2.88 / Unit
View Datasheet βL9369-TR-Q1
β Drop-Inπ Reference alternative (not in catalog)
VNH5019A
β Drop-Inπ Reference alternative (not in catalog)
L9369-TR Maximum Ratings & Electrical Characteristics
| Output Type | H-Bridge |
| Supply Voltage Range | 5.5 V to 28 V |
| Peak Output Current | 8.5 A |
| Continuous Output Current | 6 A |
| RDS(on) per Switch | 0.15 ohm |
| Control Interface | SPI |
| Current Sense Amplifier | Yes |
| Protection Features | Overcurrent, Overtemperature, Undervoltage Lockout |
| Operating Temperature | -40C to +150C |
| Package | PowerSO-36 |
| Mounting Type | Surface Mount |
| Thermal Resistance | 25 C/W |
| AEC-Q100 Qualified | Yes |
| RoHS Status | Compliant |
| MSL Level | 3 |
L9369-TR Pin Configuration
| Pin 1 | VS β Supply voltage |
| Pin 2 | OUT1 β H-bridge output 1 |
| Pin 3 | OUT2 β H-bridge output 2 |
| Pin 4 | GND β Ground |
| Pin 5 | CS β Current sense output |
| Pin 6 | SCK β SPI clock |
| Pin 7 | SDI β SPI data input |
| Pin 8 | SDO β SPI data output |
| Pin 9 | CSN β SPI chip select (active low) |
| Pin 10 | EN β Enable input |
| Pin 11 | DIAG β Diagnostic output |
| Pin 12 | VDD β Logic supply voltage |
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
L9369-TR is suitable for 6 applications: Electric Power Steering (EPS), Electronic Stability Control (ESC), HVAC Blower Motor, Cooling Fan Control, Window Lift Module, Active Suspension System.
Electric Power Steering (EPS)
The L9369-TR is ideal for EPS systems due to its high current capability (8.5A peak) and SPI interface for precise control. It drives the steering assist motor with low RDS(on) to minimize power loss. The AEC-Q100 qualification ensures reliability in automotive environments. In a typical EPS application, the L9369-TR is placed between the battery supply and the brushless DC motor, with the SPI interface connected to the ECU for torque and speed control. The integrated current sense amplifier provides feedback for closed-loop control. The device's protection features prevent damage during stall conditions, ensuring safe operation.
Recommended
Electronic Stability Control (ESC)
The L9369-TR is used in ESC systems to drive the hydraulic pump motor. Its high current capability and fast switching enable rapid pressure modulation. The SPI interface allows for real-time diagnostics and fault reporting, which is critical for safety systems. The device's thermal performance ensures reliable operation under continuous high load. In an ESC application, the L9369-TR is connected to the pump motor and controlled by the ESC ECU. The current sense amplifier monitors motor current to detect wheel slip and adjust braking pressure. The device's undervoltage lockout prevents malfunction during low battery conditions.
Recommended
HVAC Blower Motor
The L9369-TR drives the HVAC blower motor in automotive climate control systems. Its wide supply voltage range (5.5V to 28V) accommodates various battery voltages. The low RDS(on) reduces power dissipation, improving efficiency. The device's protection features ensure reliable operation in harsh conditions. In a typical HVAC application, the L9369-TR is controlled via SPI to adjust fan speed. The current sense amplifier provides feedback for speed regulation. The device's thermal management allows continuous operation at high currents.
Recommended
Cooling Fan Control
The L9369-TR is used to drive engine cooling fans in automotive applications. Its high peak current (8.5A) can handle the inrush current of large fans. The SPI interface enables precise speed control and diagnostics. The device's AEC-Q100 qualification ensures reliability in engine bay temperatures. In a cooling fan application, the L9369-TR is connected to the fan motor and controlled by the engine control unit. The current sense amplifier monitors fan current to detect blockages. The device's overtemperature protection prevents damage during prolonged operation.
Recommended
Window Lift Module
The L9369-TR drives the window lift motor in automotive power window systems. Its H-bridge configuration allows bidirectional control for raising and lowering windows. The device's protection features prevent damage from window jamming. The SPI interface provides diagnostics for anti-pinch functionality. In a window lift application, the L9369-TR is controlled by the body control module. The current sense amplifier detects increased current when the window encounters resistance, triggering anti-pinch reversal. The device's low RDS(on) ensures efficient operation.
Recommended
Active Suspension System
The L9369-TR is used in active suspension systems to drive the hydraulic actuators. Its high current capability and fast response enable real-time damping adjustment. The SPI interface allows for precise control and monitoring. The device's AEC-Q100 qualification ensures reliability in demanding conditions. In an active suspension application, the L9369-TR is connected to the actuator motor and controlled by the suspension ECU. The current sense amplifier provides feedback for force control. The device's thermal performance supports continuous operation.
Recommended
Recommended Products Summary
Engineering reference data for L9369-TR β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | L9369 | L9369-TR-Q1 | DRV8703-Q1 | VNH5019A |
|---|---|---|---|---|---|
| Package | PowerSO-36 | PowerSO-36 | PowerSO-36 | HTSSOP-28 | PowerSO-36 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | Texas Instruments | STMicroelectronics |
| Supply Voltage Range | 5.5V to 28V | 5.5V to 28V | 5.5V to 28V | 4.5V to 45V | 5.5V to 24V |
| Peak Output Current | 8.5A | 8.5A | 8.5A | 10A | 30A |
| RDS(on) | 0.15 ohm | 0.15 ohm | 0.15 ohm | 0.1 ohm | 0.05 ohm |
| Control Interface | SPI | SPI | SPI | SPI | PWM |
| AEC-Q100 Qualified | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +150C | -40C to +150C | -40C to +150C | -40C to +125C | -40C to +150C |
Key Differentiators
- Integrated current sense amplifier (vs VNH5019A)
- SPI interface for diagnostics (vs VNH5019A)
- Higher peak current than some alternatives (vs DRV8703-Q1)
Design Notes
The L9369-TR in PowerSO-36 package has a thermal resistance of 25 C/W. At 6A continuous current and 0.15 ohm RDS(on), power dissipation is approximately 5.4W, resulting in a 135C junction temperature rise. Ensure adequate PCB copper area or a heatsink to keep junction temperature below 150C.
Place the supply decoupling capacitors (100nF and 10uF) close to the VS and VDD pins. Use a solid ground plane to minimize inductance. The PowerSO-36 package has an exposed pad that should be soldered to a large copper area for thermal management.
Do not exceed the absolute maximum supply voltage of 28V. Ensure the SPI interface is properly configured to avoid unintended motor activation. The current sense amplifier output should be filtered with an RC filter to reduce noise.
Compliance Information
RoHS compliant per STMicroelectronics product page. AEC-Q100 qualified for automotive applications.
