L99ASC03

NRND

Brushless/Sensorless 3-phase motor pre-driver for automotive applications

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  • The L99ASC03 is a multifunctional system IC designed for three-phase motor control applications.

    The device features a voltage regulator to supply an external microcontroller and an operation amplifier for motor current sensing. It is designed to control six externalN-channel MOSFETs in bridge configuration to drive three-phase motors in automotive applications. All gate driver outputs are controlled by separate inputs.
    The integrated Serial Peripheral Interface (SPI) makes it possible to adjust device parameters, control all operating modes and read out diagnostic information.

    Key Features

    • Automotive qualified
    • 5 V low-drop voltage regulator (200 mA continuous mode)
    • Very low current consumption in standby mode (typ. 15 μA)
    • ST SPI interface for control and diagnostics
    • Window watchdog and fail-safe functionality
    • Two separate power supply pins
    • Three half-bridge drivers to control external MOSFETs (configurable by SPI)
    • Full drive of external MOSFETs down to 6 V input voltage
    • Input pin for each gate driver (with cross-current protection)
    • Two-stage charge pump supporting 100% duty cycle
    • PWM operation up to 80 kHz (not restricted)
    • Current-sense amplifier (configurable by SPI)
    • Disable input to turn off gate driver outputs
    • Analog multiplexer output to monitor external power supply voltages and internal junction temperature
    • Advanced BEMF detection IP
    • Overcurrent protection (programmable)
    • Drain-source monitoring and open-load detection
    • TQFP48 7 x 7 x 1 mm with Exposed Pad (4.5 x 4.5 mm) package

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Part Number
Package
Packing Type
Temperature (°C) Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
More info
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min
max
L99ASC03 TQFP 48 7x7x1.0 Tray - -
NRND
- - EAR99
MORE INFO

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofL99ASC03

Distributor Name
Region Stock Min. Order Third party link
ARROW EUROPE 38 0 Order Now
Farnell Element14 EUROPE 657 1 Order Now

Distributor reported inventory date: 2020-01-22

Distributor Name

ARROW

Stock

38

Min.Order

0

Region

EUROPE Order Now

Farnell Element14

Stock

657

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-01-22

L99ASC03TR TQFP 48 7x7x1.0 Tape And Reel - -
NRND
- - EAR99
MORE INFO

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofL99ASC03TR

Distributor Name
Region Stock Min. Order Third party link
ARROW EUROPE 26400 0 Order Now

Distributor reported inventory date: 2020-01-22

Distributor Name

ARROW

Stock

26400

Min.Order

0

Region

EUROPE Order Now

Distributor reported inventory date: 2020-01-22

L99ASC03

Package

TQFP 48 7x7x1.0

Packing Type

Tray

Unit Price (US$)

*

Distributor availability ofL99ASC03

Distributor Name
Region Stock Min. Order Third party link
ARROW EUROPE 38 0 Order Now
Farnell Element14 EUROPE 657 1 Order Now

Distributor reported inventory date: 2020-01-22

Distributor Name

ARROW

Stock

38

Min.Order

0

Region

EUROPE Order Now

Farnell Element14

Stock

657

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-01-22

Operating Temperature (°C)

(min)

-

(max)

-

Marketing Status

NRND

Unit Price (US$)

-

Quantity

-

ECCN (US)

EAR99

Country of Origin

MALAYSIA

L99ASC03TR

Package

TQFP 48 7x7x1.0

Packing Type

Tape And Reel

Unit Price (US$)

*

Distributor availability ofL99ASC03TR

Distributor Name
Region Stock Min. Order Third party link
ARROW EUROPE 26400 0 Order Now

Distributor reported inventory date: 2020-01-22

Distributor Name

ARROW

Stock

26400

Min.Order

0

Region

EUROPE Order Now

Distributor reported inventory date: 2020-01-22

Operating Temperature (°C)

(min)

-

(max)

-

Marketing Status

NRND

Unit Price (US$)

-

Quantity

-

ECCN (US)

EAR99

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

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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS9201
      Brushless / sensorless 3-phase motor pre-driver for automotive applications
      7.0
      1.13 MB
      PDF
      DS9201

      Brushless / sensorless 3-phase motor pre-driver for automotive applications

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      PDF

      Smart power solutions for car body applications

    • Description Version Size Action
      ST’s solutions for automotive seating systems 1.0
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      ST’s solutions for automotive seating systems

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L99ASC03
NRND
TQFP 48 7x7x1.0 Automotive Ecopack2
L99ASC03TR
NRND
TQFP 48 7x7x1.0 Automotive Ecopack2

L99ASC03

Package:

TQFP 48 7x7x1.0

Material Declaration**:

Marketing Status

NRND

Package

TQFP 48 7x7x1.0

Grade

Automotive

RoHS Compliance Grade

Ecopack2

L99ASC03TR

Package:

TQFP 48 7x7x1.0

Material Declaration**:

Marketing Status

NRND

Package

TQFP 48 7x7x1.0

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.

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