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With the increasing degree of automobile electronization and integration, the types and number of loads in automobiles are also increasing, and the demand for various small current drives is also increasing accordingly.

Small current driver is a switch device that is specialized in driving a variety of small current loads, and can control and manage a variety of small current loads on the car, such as lights, leds, relays, small current solenoid valves, small signal high-low side output and so on.

ST introduced the latest generation of 8-way small current driver chip - L9026. The chip has been mass produced in early 2021 and is currently widely used in many application fields of automotive electronics.

Device: L9026-B03N

Type: Drive

Package: 24-HTSSOP

Applications: Automotive LED, bulb and relay applications

Product overview

The L9026 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.

L9026 Main 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)

Shenzhen Mingjiada Electronics Co., LTD. (Supply) (recycling) 8-way small current driver chip L9026-B03N, if there is demand, welcome to call for advice!

Contact: Mr. Chen

Tel: +8613410018555

Email: sales@hkmjd.com