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L9958
  • L9958

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L9958 Overview

The L9958 is an SPI controlled H-Bridge, designed for the control of DC and stepper motors in safety critical applications and under extreme environmental conditions.

The H-Bridge is protected against over temperature, short circuits and has an undervoltage lockout for all the supply voltages Vsand Vdd, and for overvoltage on Vdd. All malfunctions cause the output stages to go tristate.

Detailed failure diagnostics on each channel is provided via SPI: short circuit to battery, short circuit to ground, short circuit overload, over temperature.

Open-load can be detected in ON condition, for the widest application ranges. Current regulation threshold can be set by SPI from 2.5 A to 8.6 A (Typ.), in 4 steps. Guaranteed accuracy is ±10 % on all temp range, using an external reference resistor with 1% accuracy over all temp range.

Current limitation threshold is linearly reduced by temperature over 165 °C.and a thermal warning bit is set by SPI. The H-Bridge contains integrated free-wheel diodes. In case of free-wheeling condition, the low side transistor is switched on in parallel of its diode to reduce power dissipation.

A multiple wire bonding technique, as well as ST proprietary package design is making L9958 compatible with three power packages, for maximum flexibility:

PowerSO-20 package (medium power, JEDEC standard MO166);PowerSO16 package (medium power, lower cost);PowerSSO24 package (low power, very low cost JEDEC standard MO271A).

Circuit Diagram

Features

  • Programmable current regulation peak threshold by SPI up to 8.6 A typ.
  • Operating battery supply voltage 4.0 V to 28 V
  • Operating Vdd supply voltage 4.5 V to 5.5 V
  • All pins withstand 19 V, Vs and output pins withstand 40 V
  • Full path Ronfrom 100 mΩ (at Tj = -40 °C) to 300 mΩ (at Tj=150 °C)
  • Logic inputs TTL/CMOS-compatible
  • Operating frequency up to 20 kHz
  • 16-bit SPI interface for configuration/diagnostics, daisy chain capability
  • Over temperature and short circuit protection
  • VSundervoltage disable function
  • Vddundervoltage and overvoltage protection
  • Vddovervoltage detection
  • Open-load detection in ON condition
  • Full diagnostics in OFF state
  • Enable and disable input
  • Low stand by current (
  • Voltage and current slew-rate control for low EMI, programmable through SPI
  • Available in three power packages
L9958
L9958

Product Parameters

  • prmis_id

    CP136749

  • item_name

    L9958

  • p_445

    Yes

  • p_1387

    2.7995

  • p_4418

    1000

  • parent_id

    PF246497

  • p_4906

    true

  • p_5113

    3152

  • p_163

    Active

Technical Documents

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Other distributor's price

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arrow L9958 STMicroelectronics H-Bridge Motor Driver Automotive 18-Pin(16+2Tab) PowerSO T/R

600---$3.2080

digikey L9958 STMicroelectronics 10GX TRACEABLE PCORD ORG 4FT

1---$31.1700

rs L9958 STMicroelectronics Evaluation Board DC & Stepper Motor, SPI, EA

1---HK$3,240.6300

5---HK$2,916.5800

mouser L9958 STMicroelectronics Power Management IC Development Tools Evaluation board for high current (8.6A) DC and Stepper Motors

1---$74.1200

newark L9958 STMicroelectronics Evaluation Brd, Dc/Stepper Motor Driver, Application Sub Type:Motor Driver, Silicon Manufacturer:Stmicroelectronics, Kit Application Type:Power Management - Motor Control, Silicon Core Number:L9958, Kit Contents:Eval Board L9958, Rohs Compliant: Yes |Stmicroelectronics EVAL-L9958

1---$74.1200

avnet L9958 STMicroelectronics H-Bridge DC Motor Driver 24-Pin PowerSSO T/R - Tape and Reel (Alt: L9958XPTR)

1000---$4.6228

2000---$4.5294

4000---$4.4360

6000---$4.3426

8000---$4.2492

10000---$4.1559

100000---$4.0625