Overview
The L9950XPTR, manufactured by STMicroelectronics, is a microcontroller-driven multifunctional door actuator driver designed for automotive applications. This integrated circuit can drive up to five DC motors and five grounded resistive loads using six half bridges and five highside drivers. The device is controlled via a standard serial peripheral interface (SPI) and offers comprehensive diagnostic information through this interface.
The L9950XPTR is packaged in a PowerSSO-36 package, which is suitable for surface mount technology (SMT) and is RoHS compliant with an Ecopack2 grade. This component is part of the automotive grade family, ensuring high reliability and performance in vehicle systems.
Key Specifications
| Parameter | Description |
|---|---|
| Package | PowerSSO 36 |
| Grade | Automotive |
| RoHS Compliance Grade | Ecopack2 |
| Full Bridge Load | 6A (Ron = 150 mΩ) |
| Half Bridges Load | Two at 3A (Ron = 300 mΩ), Two at 1.5A (Ron = 800 mΩ) |
| Highside Drivers Load | One at 6A (Ron = 100 mΩ), Four at 1.5A (Ron = 800 mΩ) |
| Standby Current Consumption | IS < 6 μA typ; ICC < 25 μA typ; Tj ≤ 85 °C |
| Operating Temperature | -40°C to 150°C |
Key Features
- Programmable softstart function to drive loads with higher inrush currents
- Very low current consumption in standby mode
- All outputs short circuit protected
- Current monitor output for 300 mΩ, 150 mΩ, and 100 mΩ highside drivers
- All outputs over temperature protected
- Open load diagnostic for all outputs
- Overload diagnostic for all outputs
- Separated half bridges for door lock motor
- PWM control of all outputs
- Charge pump output for reverse polarity protection
Applications
The L9950XPTR is primarily used in automotive applications, particularly for door actuator systems. It can drive various loads such as:
- Door lock and safe lock motors
- Mirror axis control and mirror fold mechanisms
- Mirror defroster
- Four 10W light bulbs
Q & A
- What is the primary function of the L9950XPTR?
The L9950XPTR is a microcontroller-driven multifunctional door actuator driver for automotive applications.
- What types of loads can the L9950XPTR drive?
The L9950XPTR can drive up to five DC motors and five grounded resistive loads.
- What is the package type of the L9950XPTR?
The L9950XPTR is packaged in a PowerSSO-36 package.
- Is the L9950XPTR RoHS compliant?
- What is the operating temperature range of the L9950XPTR?
The operating temperature range is -40°C to 150°C.
- Does the L9950XPTR have built-in protection features?
- How is the L9950XPTR controlled?
The L9950XPTR is controlled via a standard serial peripheral interface (SPI).
- What is the purpose of the charge pump output in the L9950XPTR?
The charge pump output is for reverse polarity protection.
- Can the L9950XPTR handle high inrush currents?
- What is the current consumption in standby mode?
The current consumption in standby mode is very low, with IS < 6 μA typ and ICC < 25 μA typ at Tj ≤ 85 °C.
