L9907

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3 phase gate driver for 6step or FOC controlled Brushless Motors compatible with 48V NET

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  • L9907 is a smart power device realized in STMicroelectronics advanced BCD-6s technology. It is able to drive all PowerMOS transistors for 3-phase BLDC motor applications. The circuit is suitable to operate in environments with high supply voltage such as double battery. Supply related pins are capable of withstanding up to 90 V.

    Moreover, the device is able to control the six pre-driver channels independently. In this way it is possible to implement all kinds of electric motor control strategy.
    The integrated boost regulator provides sufficient gate charge for all PowerMOS down to a battery voltage of 6 V. All pre-drivers have dedicated connections with the MOSFET sources. The device offers programmability for a base gate output current via an external resistor. Moreover, via SPI, it is possible to select among 4 gate output current levels even while the application is running. All channels are protected against short circuit and the device is protected against overtemperature conditions. Moreover, the boost converter implements an over voltage protection to allow safe functionality of pre-drivers in all battery voltage conditions. During over voltage conditions, BST_C voltage is limited by temporarily switching off the boost regulator and pre-drivers are allowed to operate. Boost will be self re-enabled as soon as the output voltage decreases to an acceptable value.
    The device is equipped with 2 current sense amplifiers. Both have SPI selectable amplifier gain (10, 30, 50 and 100) and output offset voltage level in order to allow max flexibility for phase or ground current sense strategy. All I/O pins are 35 V compatible. Full diagnostic is available through SPI. The device is available in TQFP64.
    The device is protected against Shoot Through events.

    Key Features

    • AEC-Q100 qualified
    • Supply voltage from 4.2V to 54 V for working in single (12 V systems), double (24 V systems) and 48 V battery applications
    • The device can withstand -7 V to 90 V at the FET high-side Driver pins
    • Low standby current consumption
    • 3.3 V internal regulator supplied by Vcc pin
    • Boost regulator for full Rdson down to 6 V and over voltage protection
    • 3 low-side + 3 high-side drivers
      • PWM operation up to 20 kHz
      • Gate driver current adjustable via SPI in 4 steps. Range set via external resistor. Maximum gate controlled current 600 mA
      • Source connection to each MOSFET
    • Input pin for each gate driver
    • 2-differential current sense amplifiers:
      • Output offset selectable via SPI (0.2*Vcc offset for ground shunt resistors connection, 0.5*Vcc offset for phase shunt resistors connection)
      • All the amplifier gain factors are programmable (10, 30, 50, 100)
    • 8 MHz, 16-bit SPI
      • Full diagnostic
      • Programmable parameters:
        • Cross conduction dead time with a fixed minimum value
        • 4 current steps driving the PowerMOS gates (25%, 50%, 75%, 100%)
        • Phase or ground selection of current sense amplifier
        • Gain values for the current sense amplifiers
        • Zero current output voltage (offset) for the current sense amplifiers
        • Over voltage threshold selection for single or double battery operation
        • Short circuit detection thresholds for the low-side and the high-side MOSFETs (drain to source voltage monitor).
    • Protection and diagnostic
      • FET driver:
        • FET driver supply Undervoltage (UV) diagnostic;
        • Gate to source output voltage limit;
        • Gate to source passive switch off.
      • Power supply pins VB and VCC:
        • Overvoltage (OV), Undervoltage (UV) diagnostic and protection
      • All logic pins withstand 35 V
      • Power MOSFET drain to source voltage drop measurement for overcurrent protection
      • Over-temperature diagnostic and shutdown
      • Fault status flag output

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All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      EVAL-L9907

      Active

      Evaluation board for L9907 highly integrated 3-phase BLDC motors pre-driver with integrated rail-to-rail operational ampliers and Inductive booster for system operation from 6V up to 54V

      Automotive IC Eval Boards --

      EVAL-L9907-H

      Active

      Evaluation board for L9907 highly integrated 3-phase BLDC motors pre-driver with integrated rail-to-rail operational ampliers and Inductive booster for system operation from 6V up to 54V - high Current version (120Amps)

      Automotive IC Eval Boards --
      EVAL-L9907

      Description:

      Evaluation board for L9907 highly integrated 3-phase BLDC motors pre-driver with integrated rail-to-rail operational ampliers and Inductive booster for system operation from 6V up to 54V
      EVAL-L9907-H

      Description:

      Evaluation board for L9907 highly integrated 3-phase BLDC motors pre-driver with integrated rail-to-rail operational ampliers and Inductive booster for system operation from 6V up to 54V - high Current version (120Amps)

CAD/EDA Symbols, Footprints and Models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L9907
Active
TQFP 64 10x10x1.0 Automotive Ecopack2
L9907TR
Active
TQFP 64 10x10x1.0 Automotive Ecopack2

L9907

Package:

TQFP 64 10x10x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TQFP 64 10x10x1.0

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L9907TR

Package:

TQFP 64 10x10x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TQFP 64 10x10x1.0

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
L9907TR Available at 1 distributors

Distributor availability ofL9907TR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 1557 1 Order Now

Distributor reported inventory date: 2020-10-26

Distributor Name

MOUSER

Stock

1557

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-26

Buy Direct
Active
EAR99 NEC Tape And Reel TQFP 64 10x10x1.0 - - MALAYSIA 5.4 / 1k
L9907 No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tray TQFP 64 10x10x1.0 - - MALAYSIA 5.4 / 1k

L9907TR

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

5.4 / 1k

Distributor availability ofL9907TR

Distributor Name
Region Stock Min. Order Third party link
MOUSER WORLDWIDE 1557 1 Order Now

Distributor reported inventory date: 2020-10-26

Distributor Name

MOUSER

Stock

1557

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-10-26

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

TQFP 64 10x10x1.0

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

5.4 / 1k

Country of Origin

MALAYSIA

L9907

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

5.4 / 1k

ECCN (EU)

NEC

Packing Type

Tray

Package

TQFP 64 10x10x1.0

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

5.4 / 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