Overview
The L9848 IC, produced by STMicroelectronics, is a highly flexible monolithic medium current output driver. It features a combination of low and high side drivers, making it versatile for various automotive and industrial applications. The IC includes 2 dedicated low side outputs (outputs 7-8) and 6 outputs that can be configured as either low or high side drivers (outputs 1-6). This flexibility, along with integrated protection and control features, makes the L9848 a robust solution for complex power management needs.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 4.75 V to 5.25 V |
| Output Configuration | 2 dedicated low side outputs (7-8), 6 configurable outputs (1-6) |
| Current Limit per Output | Minimum 0.8 A |
| RDSON | Maximum 1.5 Ω @ Tj = 25 °C |
| Output Voltage Clamping (Low Side) | Minimum 35 V |
| Output Voltage Clamping (High Side) | -30 V |
| Thermal Shutdown | For all outputs |
| Open Load Detection | In off mode |
| Reverse Battery Protection | For outputs |
| Package | SO-28 |
Key Features
- Configurable up to 6 high side drivers and 2 dedicated low side drivers
- Integrated standard serial peripheral interface (SPI) for data communication and diagnostic information
- Additional PWM inputs for outputs 5-6
- Integrated clamping circuits and protection against positive and negative voltage transients
- Thermal shutdown for all outputs
- Open load detection in off mode
- Reverse battery protection for outputs
- Ground disconnection for high side configured outputs
Applications
The L9848 IC is suitable for a wide range of automotive and industrial applications. It can be used in power management systems, lighting control, motor control, and other applications where flexible and robust output driver capabilities are required. The integrated protection features and SPI interface make it particularly useful in complex systems that require precise control and monitoring.
Q & A
- What is the supply voltage range for the L9848 IC?
The supply voltage range for the L9848 IC is 4.75 V to 5.25 V. - How many outputs can be configured as high side drivers?
Up to 6 outputs can be configured as high side drivers. - What is the current limit per output?
The current limit per output is a minimum of 0.8 A. - Does the L9848 IC have thermal shutdown protection?
Yes, the L9848 IC has thermal shutdown protection for all outputs. - What interface is used for data communication and diagnostic information?
The L9848 IC uses a standard serial peripheral interface (SPI) for data communication and diagnostic information. - Are there any additional PWM inputs available?
Yes, there are additional PWM inputs available for outputs 5-6. - What kind of protection does the L9848 IC offer against voltage transients?
The L9848 IC offers protection against both positive and negative voltage transients. - Is reverse battery protection available for the outputs?
Yes, the L9848 IC provides reverse battery protection for the outputs. - What is the package type for the L9848 IC?
The package type for the L9848 IC is SO-28. - What are some common applications for the L9848 IC?
The L9848 IC is commonly used in automotive and industrial applications, including power management systems, lighting control, and motor control.
