L9788 datasheet(1/264 Pages) STMICROELECTRONICS

Part #	L9788

Description	Multifunction IC for automotive engine management system

PDF	264 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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This is information on a product in full production.

May 2022

DS12308 Rev 4

1/264

L9788

Multifunction IC for automotive engine management system

Datasheet

- production data

Features

 AEC-Q100 qualified

 Engineered for ISO26262 compliant system

 1 pre-boost regulator and 1 pre-buck regulator

 1 linear 5 V regulator with 1 A output current

 3 independent self-protection 5 V tracking

regulator with 150 mA output.

 1 input voltage pin for monitor external

tracking.

 Coordinated soft start-up of all regulators

 4 channels LS injector LS drivers

 2 channels LS drivers for O2H load with current

sense

 2 channels LS camshaft or solenoid drivers

 5 channels LS relay drivers

 2 channels LS LED drivers

 3 channels LS/HS drivers with low battery

function for smart start

 1 channel LS main relay driver (MRD) with

internal diode for reverse battery protection

 5 channels pre-drivers for external FET drivers.

Pre-driver 1&3 configurable for O2H load with

external Rshunt-on the source of Ext.

N-channel MOS

 6 channels pre-drivers for internal or external

igniter drivers

 1 K-Line ISO9141/LIN 2.1 compliant

 Integrated charge-pump

 VRS-interface

 Watchdog

 Wake-up pin

 Temperature sensor and monitoring

 Stop-counter with wakeup

 Dual bandgap reference & oscillator

 Micro-second-channel MSC for differential

single ended mode

 SEO function

 CAN-FD with wakeup by CAN function

 Package LQFP100 exposed pad

Description

The L9788 is an integrated circuit designed for

automotive engine management system.

L9788 is a device realized in ST BCD proprietary

technology, able to provide the full set of power

supplies and signal preprocessing peripherals

needed to control a 4-cylinders internal

combustion engine.

LQFP100 14 x 14 x 1.4 mm

(exposed pad down)

GADG2411160920PS

Table 1. Device summary

Order code

Package

Packing

L9788

LQFP100 14x14x1.4 mm

(Exposed pad down 7.6x7.6 mm)

Tube

L9788TR

Tape & Reel

www.st.com

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