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  • The L9305 is a configurable, monolithic solenoid driver IC designed for the control of linear solenoids for automatic transmission, electronic stability control, and active suspension applications. The four channels can be configured as either low side or high side drivers in any combination. The device includes the power transistor, recirculation transistor and current sensing for both the power and recirculation transistor. This architecture guarantees redundancy of the current measurement for each channel.

    The regulated current is programmable in the range of 0-1.5 A (normal range), with a resolution of 0.25 mA, or 0-2 A (extended range), with a resolution of 0.33 mA. The user can superimpose configurable dither modulation over the set point current.
    A 32-bit CRC protected SPI interface is used for configuration and control of all channels and provides status feedback of all diagnostic functions. An active low reset input, RESN, is used to disable all channels and resets internal registers to their default values. A safe enable path is provided through the EN_DR pin and the integrated Fail Safe Pre-driver. An isolated redundant safety switch-off path ensures that critical internal faults disable the fail safe pre-driver. An active high enable pin, EN_DR, is used to enable or disable the operation of all channels. When the EN_DR pin is low, all channels are disabled. A fault output pin is provided and can be used to generate an external interrupt to the microcontroller whenever a fault is detected. The user can map specific faults to the FAULTn pin based on their specific system requirements.

    Key Features

    • AEC-Q100 qualified
    • 4-channel independent LSD/HSD current controlled drivers
      • Integrated current sense path
      • Current accuracy (in normal range) ± 5 mA in 0 to 0.5 A range± 1% in 0.5 A to 1.5 A range
      • Current accuracy (in extended range)± 15 mA in 0 to 0.3 A range± 5% in 0.3 A to 0.5 A range ± 4% in 0.5 A to 2 A range
      • Max driver RDSON 375 mΩ @ 175 °C
      • 13-bit current set-point resolution
      • Variable and fixed frequency current control
      • Programmable dither function
      • Selectable driver slew rate control
    • Safety features
      • High side fail safe ENABLE switch pre-driver with VDS monitoring
      • Redundant safe enable path
      • Advanced diagnosis and monitoring using BIST
      • Temperature sensor and monitoring
      • Redundant current sensing for all channels
      • Calibration & configuration memory including CRC
      • Secure serial communications using address feedback, 5-bit CRC, frame counter & long/short frame detection
      • Register verification
    • 32-bit SPI communications with 5-bit CRC message verification
    • Package options: PWSSO36, TQFP48 (not available)
    • Engineered for ISO26262 compliant system

Sample & Buy

Part Number
Marketing Status
Quantity
Budgetary Price (US$)*
Package
Packing Type
Temperature (°C) ECCN (US)
More info
Order from Distributors
Order from ST
min
max
L9305EP-TR
Active
1000 5.4 PowerSSO 36 Tape And Reel - - EAR99
MORE INFO

Country of Origin:

MALAYSIA

No availability of distributors reported, please contact our sales office
L9305SD
Preview
- - PowerSO 36 Tube - - EAR99
MORE INFO

Country of Origin:

-

No availability of distributors reported, please contact our sales office
L9305EP
Active
1000 5.4 PowerSSO 36 Tube - - EAR99
MORE INFO

Country of Origin:

MALAYSIA

No availability of distributors reported, please contact our sales office
L9305QFP
Preview
- - TQFP 48 7x7x1.0 Tray - - EAR99
MORE INFO

Country of Origin:

-

No availability of distributors reported, please contact our sales office

L9305EP-TR

Marketing Status

Active

Quantity

1000

Unit Price (US$)

5.4*

Unit Price (US$)

5.4

Package

PowerSSO 36

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-

(max)

-

ECCN (US)

EAR99

Country of Origin

MALAYSIA

L9305SD

Marketing Status

Preview

Quantity

-

Unit Price (US$)

*

Unit Price (US$)

-

Package

PowerSO 36

Packing Type

Tube

Operating Temperature (°C)

(min)

-

(max)

-

ECCN (US)

EAR99

Country of Origin

-

L9305EP

Marketing Status

Active

Quantity

1000

Unit Price (US$)

5.4*

Unit Price (US$)

5.4

Package

PowerSSO 36

Packing Type

Tube

Operating Temperature (°C)

(min)

-

(max)

-

ECCN (US)

EAR99

Country of Origin

MALAYSIA

L9305QFP

Marketing Status

Preview

Quantity

-

Unit Price (US$)

*

Unit Price (US$)

-

Package

TQFP 48 7x7x1.0

Packing Type

Tray

Operating Temperature (°C)

(min)

-

(max)

-

ECCN (US)

EAR99

Country of Origin

-

(*) 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

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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L9305EP
Active
PowerSSO 36 Automotive Ecopack2
L9305EP-TR
Active
PowerSSO 36 Automotive Ecopack2
L9305QFP
Preview
TQFP 48 7x7x1.0 Automotive Ecopack2
L9305SD
Preview
PowerSO 36 Automotive Ecopack2

L9305EP

Package:

PowerSSO 36

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSSO 36

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L9305EP-TR

Package:

PowerSSO 36

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSSO 36

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L9305QFP

Package:

TQFP 48 7x7x1.0

Material Declaration**:

Marketing Status

Preview

Package

TQFP 48 7x7x1.0

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L9305SD

Package:

PowerSO 36

Material Declaration**:

Marketing Status

Preview

Package

PowerSO 36

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.