L9903TR
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STMicroelectronics L9903TR

Manufacturer No:
L9903TR
Manufacturer:
STMicroelectronics
Package:
Tape & Reel (TR)
Description:
IC MOTOR DRIVER 8V-20V 20SO
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The L9903TR, produced by STMicroelectronics, is an integrated circuit designed to control four external N-channel MOS transistors in an H-Bridge configuration. This IC is specifically tailored for DC-motor driving in automotive applications and includes an ISO 9141 compatible interface. It offers a comprehensive set of features to ensure reliable and efficient motor control, including overvoltage, undervoltage, short circuit, and thermal protection.

Key Specifications

Parameter Min. Typ. Max. Unit
Operating Supply Voltage (VVS) 8 - 20 V
Overvoltage Max. - - 40 V
Quiescent Current in Standby Mode - - 50 µA -
PWM Operation Frequency - - 30 kHz -
Operating Junction Temperature (TJ) -40 - 150 °C
Junction Temperature Thermal Shutdown Threshold (TJSD) - - 150 °C
Thermal Shutdown Hysteresis (TJSDH) - 15 - °C
Thermal Resistance Junction to Ambient (Rth j-amb) - - 85 °C/W

Key Features

  • Operating supply voltage range from 8V to 20V with overvoltage protection up to 40V.
  • ISO 9141 compatible interface for serial communication.
  • Charge pump for driving a power MOS with reverse battery protection.
  • PWM operation frequency up to 30 kHz.
  • Programmable cross conduction protection time.
  • Real-time diagnostic output.
  • Overvoltage, undervoltage, short circuit, and thermal protection.
  • Low quiescent current in standby mode (less than 50 µA).

Applications

The L9903TR is primarily designed for DC-motor driving in automotive applications. It is suitable for controlling motors in various automotive systems, such as wipers, pumps, and other DC motor-driven components. The IC's robust protection features and ISO 9141 interface make it an ideal choice for reliable and efficient motor control in harsh automotive environments.

Q & A

  1. What is the operating supply voltage range of the L9903TR?

    The operating supply voltage range is from 8V to 20V, with overvoltage protection up to 40V.

  2. What type of interface does the L9903TR support for serial communication?

    The L9903TR supports an ISO 9141 compatible interface for serial communication.

  3. What is the maximum PWM operation frequency of the L9903TR?

    The maximum PWM operation frequency is up to 30 kHz.

  4. Does the L9903TR have built-in protection features?
  5. What is the quiescent current in standby mode for the L9903TR?

    The quiescent current in standby mode is less than 50 µA.

  6. How does the L9903TR protect against cross conduction in the H-Bridge configuration?

    The L9903TR has programmable cross conduction protection time, which is determined by an external capacitor and resistor at the PR pin.

  7. What is the thermal shutdown threshold for the L9903TR?

    The junction temperature thermal shutdown threshold is 150°C.

  8. Can the L9903TR operate in harsh automotive environments?
  9. How does the ISO 9141 interface work in the L9903TR?

    The ISO 9141 interface provides communication between the microcontroller and a serial bus with a baud rate up to 60 kbit/s via a single wire compatible with VBAT and GND.

  10. What is the package type for the L9903TR?

    The L9903TR is available in a 20-pin SO (Small Outline) package.

Product Attributes

Motor Type - Stepper:- 
Motor Type - AC, DC:Brushed DC
Function:Controller - Commutation, Direction Management
Output Configuration:Pre-Driver - Half Bridge (2)
Interface:Serial
Technology:Power MOSFET
Step Resolution:- 
Applications:General Purpose
Current - Output:- 
Voltage - Supply:8V ~ 20V
Voltage - Load:- 
Operating Temperature:-40°C ~ 150°C (TJ)
Mounting Type:Surface Mount
Package / Case:20-SOIC (0.295", 7.50mm Width)
Supplier Device Package:20-SO
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Same Series
L9903
L9903
IC MOTOR DRIVER 8V-20V 20SO

Similar Products

Part Number L9903TR L9904TR L9908TR
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics
Product Status Active Active Active
Motor Type - Stepper - - Multiphase
Motor Type - AC, DC Brushed DC Brushed DC Brushless DC (BLDC)
Function Controller - Commutation, Direction Management Controller - Commutation, Direction Management Driver - Fully Integrated, Control and Power Stage
Output Configuration Pre-Driver - Half Bridge (2) Pre-Driver - Half Bridge (2) Half Bridge (3)
Interface Serial Serial PWM, SPI
Technology Power MOSFET Power MOSFET IGBT
Step Resolution - - -
Applications General Purpose Automotive Automotive
Current - Output - - -
Voltage - Supply 8V ~ 20V 8V ~ 28V 4.5V ~ 75V
Voltage - Load - - 4.5V ~ 75V
Operating Temperature -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ) -40°C ~ 150°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 20-SOIC (0.295", 7.50mm Width) 20-SOIC (0.295", 7.50mm Width) 48-TQFP Exposed Pad
Supplier Device Package 20-SO 20-SO 48-TQFP-EP (7x7)

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