Overview
The L9848TR, produced by STMicroelectronics, is a highly flexible monolithic medium current output driver. This IC incorporates 2 dedicated low side outputs (outputs 7-8) and 6 outputs that can be configured as either internal low or high side drives in any combination (outputs 1-6). The device features an integrated standard serial peripheral interface (SPI) for controlling all outputs and providing diagnostic information. It is designed to handle a variety of automotive and industrial applications due to its robust protection features, including clamping circuits, waveshaping, and protection against voltage transients and thermal shutdown.
Key Specifications
| Parameter | Specification |
|---|---|
| Supply Voltage | 4.75 V to 5.25 V |
| RDSON | Max. 1.5 Ω @ Tj = 25 °C |
| Current Limit per Output | Min. 0.8 A |
| Output Voltage Clamping (Low Side) | Min. 35 V |
| Output Voltage Clamping (High Side) | -30 V |
| Package | SO-28 |
| Operating Temperature | -40 °C to 150 °C |
Key Features
- Configurable up to 6 high side drivers
- SPI interface for data communication and diagnostic information
- Additional PWM inputs for 2 outputs (outputs 5-6)
- Thermal shutdown for all outputs
- Open load detection in off mode
- Reverse battery protection for outputs
- Ground disconnection for high side configured outputs
- Integrated clamping circuits and waveshaping
- Protection against positive and negative voltage transients
Applications
The L9848TR is suitable for a wide range of automotive and industrial applications. It can be used in systems that require robust and flexible output drivers, such as:
- Automotive systems (e.g., lighting, wiper motors, fuel pumps)
- Industrial control systems (e.g., motor control, power distribution)
- Incandescent lamp control
Q & A
- What is the L9848TR used for?
The L9848TR is a highly flexible monolithic medium current output driver used in automotive and industrial applications.
- How many outputs does the L9848TR have?
The L9848TR has 8 outputs, with 2 dedicated low side outputs and 6 configurable outputs.
- What is the supply voltage range for the L9848TR?
The supply voltage range is 4.75 V to 5.25 V.
- What is the maximum RDSON for the L9848TR?
The maximum RDSON is 1.5 Ω at Tj = 25 °C.
- Does the L9848TR support PWM?
Yes, the L9848TR supports PWM for 2 outputs (outputs 5-6) via external pins.
- What protection features does the L9848TR have?
The L9848TR features thermal shutdown, open load detection, reverse battery protection, and protection against voltage transients.
- What is the package type for the L9848TR?
The package type is SO-28.
- What is the operating temperature range for the L9848TR?
The operating temperature range is -40 °C to 150 °C.
- How is the L9848TR controlled?
The L9848TR is controlled via an integrated SPI interface.
- What diagnostic capabilities does the L9848TR have?
The L9848TR provides diagnostic information through its SPI interface.
