Overview
The L9826 is a protected octal low-side driver IC designed specifically for the automotive environment. This device features an 8-bit serial peripheral interface (SPI) that controls its eight channels and provides diagnostic capabilities for the loads. Additionally, outputs 1 and 2 can be controlled through dedicated input pins NON1 and NON2. The L9826 includes various protection mechanisms such as overcurrent, short-circuit protections, and output voltage clamping to safeguard the device during operation with inductive loads.
Key Specifications
| Parameter | Test Condition | Min. | Max. | Unit | |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | - | -0.3 | - | 7 | V |
| Output Current (IOUT) | - | -2 | - | 1.0 | A |
| Output Clamp Voltage (Vclp) | 1 mA ≤ Iclp ≤ Ioutp | 45 | 62 | - | V |
| On Resistance (RDSon) | IOUT = 250 mA; Tj = +150 °C | - | - | 3.0 | Ω |
| Thermal Shutdown (TJSC) | - | 150 | 165 | - | °C |
| Operating Temperature | - | -40 | - | 150 | °C |
Key Features
- 8 channels low-side driver with 450 mA output current capability.
- Typical RDSon of 1.5 Ω at TJ = 25 °C.
- Parallel control for outputs 1 and 2 through dedicated input pins NON1 and NON2.
- SPI control on all outputs.
- Reset function.
- Diagnostic capabilities through 8-bit SPI.
- Intrinsic output voltage clamping (50 V Typ) for inductive load drive.
- Short circuit current limitation and thermal shutdown for outputs 1 and 2.
- Overcurrent and short circuit shutdown for outputs 3 to 8.
Applications
The L9826 is primarily designed for use in the automotive environment, where it can be applied in various systems requiring robust and reliable low-side driver capabilities. This includes applications such as automotive lighting, actuators, and other load control systems that require diagnostic and protection features.
Q & A
- What is the L9826?
The L9826 is a protected octal low-side driver IC designed for the automotive environment.
- How many channels does the L9826 have?
The L9826 has 8 channels.
- What is the output current capability of each channel?
Each channel has a 450 mA output current capability.
- What control interfaces does the L9826 support?
The L9826 supports both SPI and parallel control interfaces. Outputs 1 and 2 can be controlled through dedicated input pins NON1 and NON2, while all outputs can be controlled via the 8-bit SPI.
- What protection features does the L9826 have?
The L9826 includes overcurrent, short-circuit protections, and output voltage clamping. It also features thermal shutdown for outputs 1 and 2 and overcurrent shutdown for outputs 3 to 8.
- What is the typical on resistance (RDSon) of the L9826?
The typical RDSon is 1.5 Ω at TJ = 25 °C.
- What is the operating temperature range of the L9826?
The operating temperature range is -40 °C to 150 °C.
- What package options are available for the L9826?
The L9826 is available in SO-20 packages, with options for tube and tape and reel packing.
- Does the L9826 have diagnostic capabilities?
- What are the primary applications of the L9826?
The L9826 is primarily used in automotive systems, including automotive lighting and load control systems.
