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See Technical Specifications

L9305EP-TR +BOM

Automotive 4-channel valve driver

Manufacturer:

STMicroelectronics, Inc
Mfr.Part #:

L9305EP-TR
Datasheet:

L9305EP-TR Datasheet (PDF)
Series:

*
Base Product Number:

L9305
Feature-type:

MOSFET
Feature-packaging:

Tape and Reel
EDA/CAD Models:

Request Free CAD Models for L9305EP-TR

Email: [email protected]

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L9305EP-TR General Description

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 R_DSON 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
Full ISO26262 compliant, ASIL-D systems ready

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Voltage Regulators - Linear + Switching	Series	*
Base Product Number	L9305	feature-type	MOSFET
feature-maximum-power-dissipation-mw		feature-packaging	Tape and Reel
feature-rad-hard		feature-pin-count	36
feature-cecc-qualified		feature-esd-protection	Yes
feature-escc-qualified		feature-military	No
feature-aec-qualified	Yes	feature-aec-qualified-number	AEC-Q100
feature-auto-motive	Yes	feature-p-pap
feature-eccn-code	EAR99	feature-svhc
feature-svhc-exceeds-threshold	No