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L99ASC03G

Description
Brushless/sensorless 3-phase motor predriver for automotive applications
File Size840KB,70 Pages
ManufacturerSTMicroelectronics
Websitehttp://www.st.com/
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L99ASC03G Overview

Brushless/sensorless 3-phase motor predriver for automotive applications

L99ASC03G
Brushless / sensorless 3-phase motor pre-driver for automotive
applications
Datasheet
-
production data
Drain-source monitoring and open-load
detection
TQFP48 7 x 7 x 1 mm with Exposed Pad
(4.5 x 4.5 mm) package
Applications
TQFP48-EP
Mechatronic three-phase motor application such
as engine cooling fans, fuel pumps, water pumps,
oil pumps
Features
AEC-Q100 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)
Description
The L99ASC03G 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 external N-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.
Table 1. Device summary
Order codes
Package
Tube
TQFP48-EP
L99ASC03G
Tape and real
L99ASC03GTR
July 2016
This is information on a product in full production.
DocID029080 Rev 2
1/70
www.st.com

L99ASC03G Related Products

L99ASC03G L99ASC03GTR
Description Brushless/sensorless 3-phase motor predriver for automotive applications IC PREDRIVER 3PHASE 48TQFP

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