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  • 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.

    Key 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 - Predriver 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
    • Pin Wake-up
    • Temperature sensor and monitoring
    • Stop-counter with Wake-up
    • Dual bandgap reference & oscillator
    • Micro-second-channel MSC for differential single ended mode
    • SEO function
    • CAN-FD with wake up by CAN function
    • Package LQFP100 exposed pad

Recommended for you

Related Applications

Electro Mobility

Evaluation Tools

    • Part Number

      Evaluation board for L9788 Multifunction IC for automotive EMS

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DB3419
      Multifunction IC for automotive engine management system
      1.0
      412.73 KB
      PDF
      DB3419

      Multifunction IC for automotive engine management system

    • Description Version Size Action
      AN5319
      Lamp switch management with L9177A
      1.1
      887.98 KB
      PDF
      AN5319

      Lamp switch management with L9177A

    • Description Version Size Action
      UM2585
      STSW - L9788 GUI software
      1.0
      4 MB
      PDF
      UM2585

      STSW - L9788 GUI software

Publications and Collaterals

    • Description Version Size Action
      STMicroelectronics enables electronic control of the next generation of Gasoline Direct Injection (GDI) engines. 1.0
      822.68 KB
      PDF

      STMicroelectronics enables electronic control of the next generation of Gasoline Direct Injection (GDI) engines.

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L9788
Active
LQFP-EP 100 14x14x1.4 Automotive Ecopack2
L9788TR
Active
LQFP-EP 100 14x14x1.4 Automotive Ecopack2

L9788

Package:

LQFP-EP 100 14x14x1.4

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP-EP 100 14x14x1.4

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L9788TR

Package:

LQFP-EP 100 14x14x1.4

Material Declaration**:

PDF XML

Marketing Status

Active

Package

LQFP-EP 100 14x14x1.4

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
L9788 No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tray LQFP-EP 100 14x14x1.4 -40 125 MALAYSIA 10.6 / 1k
L9788TR Available at 2 distributors

Distributor availability ofL9788TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 95 1 Order Now
MOUSER WORLDWIDE 986 1 Order Now

Distributor reported inventory date: 2020-08-13

Distributor Name

DIGIKEY

Stock

95

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

986

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-13

Buy now
Active
EAR99 NEC Tape And Reel LQFP-EP 100 14x14x1.4 -40 125 MALAYSIA 10.6 / 1k

L9788

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

10.6 / 1k

ECCN (EU)

NEC

Packing Type

Tray

Package

LQFP-EP 100 14x14x1.4

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

10.6 / 1k

Country of Origin

MALAYSIA

L9788TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

10.6 / 1k

Distributor availability ofL9788TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 95 1 Order Now
MOUSER WORLDWIDE 986 1 Order Now

Distributor reported inventory date: 2020-08-13

Distributor Name

DIGIKEY

Stock

95

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

986

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-08-13

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

LQFP-EP 100 14x14x1.4

Operating Temperature (°C)

(min)

-40

(max)

125

Budgetary Price (US$)* / Qty

10.6 / 1k

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors