Overview
The L9026-YO-TR, produced by STMicroelectronics, is an eight-channel IC designed for automotive applications, specifically for driving LEDs and relays. This device features two fixed high-side (HS) drivers and six configurable high-side/low-side (HS/LS) drivers. It is compatible with resistive, inductive, and capacitive loads and offers advanced diagnostic and protection functionalities. The L9026-YO-TR is AEC-Q100 qualified and fully ISO26262 compliant, making it suitable for ASIL-B systems. It operates under a wide range of conditions, including cranking scenarios down to VBATT = 3 V, and it has a low quiescent current under reset conditions.
Key Specifications
| Parameter | Description | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VBATT | Battery Voltage | -0.3 | - | 42 | V |
| VDDIO | IO Supply Voltage | -0.3 | - | 20 | V |
| Ta | Operating Ambient Temperature | -40 | - | 125 | °C |
| Tj | Junction Temperature | -40 | - | 150 | °C |
| Package | HTSSOP24, VFQFPN32 | - | - | - | - |
| Number of Channels | 8 (2 fixed HS, 6 configurable HS/LS) | - | - | - | - |
Key Features
- AEC-Q100 qualified and full ISO26262 compliant, ASIL-B systems ready.
- Six configurable LS/HS drivers and two fixed HS drivers.
- Two parallel input pins with input mapping functionality.
- Cranking capability down to VBATT = 3 V.
- Digital supply voltage compatible with 3.3 V and 5 V microcontrollers.
- Reverse battery protection on VBATT and on drain pins without external components.
- BIM (bulb inrush mode) for driving resistive and capacitive loads.
- Limp home mode with usage of IDLE and IN pins.
- Safety features including temperature sensor and monitoring, short to GND, open load, overcurrent, and overtemperature detections.
- SPI interface for outputs control and diagnosis data communication.
- Green product (RoHS compliant).
Applications
The L9026-YO-TR is designed for various automotive applications, including:
- Driving LEDs and relays in automotive systems.
- Use in ASIL-B compliant systems due to its ISO26262 compliance.
- Applications requiring advanced diagnostic and protection functionalities such as short to GND, open load, overcurrent, and overtemperature detections.
- Systems that need cranking capability down to VBATT = 3 V and low quiescent current under reset conditions.
Q & A
- What is the L9026-YO-TR used for?
The L9026-YO-TR is used for driving LEDs and relays in automotive applications, offering advanced diagnostic and protection features.
- What are the key safety features of the L9026-YO-TR?
The device includes safety features such as short to GND, open load, overcurrent, and overtemperature detections, along with reverse battery protection and a temperature sensor.
- What are the package options for the L9026-YO-TR?
The device is available in HTSSOP24 and VFQFPN32 package options.
- Is the L9026-YO-TR compliant with automotive standards?
Yes, it is AEC-Q100 qualified and fully ISO26262 compliant, making it suitable for ASIL-B systems.
- What is the cranking capability of the L9026-YO-TR?
The device can operate under cranking scenarios down to VBATT = 3 V.
- How does the L9026-YO-TR handle limp home mode?
The device enters limp home mode when the IDLE pin is set to 'Low' and one of the input pins (IN0 or IN1) is asserted to 'High', allowing two selected drivers to operate in faulty conditions.
- What is the purpose of the SPI interface in the L9026-YO-TR?
The SPI interface is used for controlling the outputs and communicating diagnosis data.
- Is the L9026-YO-TR environmentally friendly?
Yes, it is a green product and RoHS compliant.
- How many channels does the L9026-YO-TR have?
The device has eight channels, with two fixed HS drivers and six configurable HS/LS drivers.
- What is the operating temperature range of the L9026-YO-TR?
The operating ambient temperature range is -40°C to 125°C, and the junction temperature range is -40°C to 150°C.
