STMicroelectronics L9822E Octal Serial Solenoid Driver Datasheet

The L9822E is an octal low side solenoid driver, realized in Multipower-BCD technology, particularly suited for driving lamps, relays and solenoids in automotive environment. The DMOS outpts L9822E has a very low power consumption. Data is transmitted serially to the device using the Serial Peripheral Interface (SPI) protocol. The L9822Efeatures the outputs status monitoring function.


STMicroelectronics L9822E Octal Serial Solenoid Driver Datasheet - cover page
Brand
STMicroelectronics
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
11
File format
PDF
File size
102 KB
Published
11 June, 2012
Updated
30 September, 2023
Model
L9822E
MD5 checksum
3481534C0213919F946ABF0EC363BC2C

About this manual

The L9822E is an octal low-side solenoid driver realized in Multipower-BCD technology. It features eight low-side DMOS outputs with a nominal load current of 500mA and a minimum current limit of 1.05A, suitable for driving lamps, relays, and solenoids in automotive environments.

Data is transmitted serially to the device using the Serial Peripheral Interface (SPI) protocol. The driver includes output status monitoring via an 8-bit serial diagnostic output that reports overload and open-circuit conditions. Each output has internal clamping set at approximately 36V for recirculation of inductive load current.

What's inside

  • Description
  • Block Diagram
  • Pin Connections
  • Absolute Maximum Ratings
  • Thermal Data
  • Pin Description
  • Electrical Characteristics
  • Functional Description
  • Internal Blocks Description

Specifications

Output Clamping Voltage (Max)40 V
Nominal Load Current500mA
Operating Frequency (SPI)2 MHz
Output Clamping Energy20 mJ

Frequently asked questions

What is the nominal load current for the L9822E outputs?

The nominal load current for these outputs is 500mA.

How does the device protect against inductive transients?

Each output has on-board clamps set at about 36V to clamp inductive load current.

What protocol is used for data transmission?

Data is transmitted serially to the device using the Serial Peripheral Interface (SPI) protocol.

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