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Overview

The L9026-YO-TR multi-channel relay driver is optimized for automotive LED and relay applications and is compatible with resistive, inductive and capacitive loads. The L9026 integrates two high-side drivers and six configurable high-side/low-side drivers that can be driven by SPI or two dedicated parallel inputs. The device has advanced diagnostic and protection features such as GND short circuit, open load, overcurrent and overheat detection. There is also a Limp Home feature that allows two selected drives to be used under specific failure conditions such as SPI failure, microfailure, or power UV. Daisy-chain connections are possible even with 8-bit SPI devices.

The L9026 relay driver guarantees operation at starts as low as VBATT=3V and has very low static current in RESET conditions. The SPI interface is used to control and configure loads as well as devices, and provides status feedback for all diagnostic functions. For direct control and PWM, there are two input pins connected to two defined outputs by default. Additional output maps can be controlled via SPI.

Features

Meets AEC-Q100 standard

6 configurable high/low side drivers

2 high side drives

2 parallel input pins, with input mapping function

Starting capability as low as VBATT=3.0V

The digital supply voltage is compatible with 3.3V and 5.0V microcontrollers

Reverse battery protection on VBATT and drain pins, no external components required

LED mode

The bulb Surge mode (BIM) is used to drive lights and electronic loads

2 internal PWM generators for microcontroller offloading

Very low static current (using IDLE pins)

Limp Home mode (using IDLE and IN pins)

Safety feature

Temperature sensors and monitoring

Serial communication using address feedback, 1 parity bit, frame counter, and short frame detection

16-bit serial Peripheral Interface (SPI) for control and diagnostics

Supports daisy-chain SPI and is also compatible with 8-bit SPI devices

HTSSOP24 and VFQFPN32 package options

Fully compliant with ISO26262 standards and supports ASIL-B systems

Green products (RoHS compliance)

Applications

• Automotive LED, bulb and relay applications

Contact: Mr. Chen

Tel: +8613410018555

Email: sales@hkmjd.com