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SGM42406
38V, 8-Channel Serial Interface Low-side Driver IC
38V, 8-Channel Serial Interface Low-side Driver IC
GENERAL DESCRIPTION

The SGM42406 consists of 8 identical low-side drivers with series protection functions. The device integrates diodes for inductive load demagnetizing, and can drive different kinds of loads. For example, brushed motor, relays, LEDs, unipolar stepper motor and so on.

The SGM42406 can provide continuous output current up to 930mA (1-channel on) or 310mA/channel (8-channel on) by TSSOP-16 package at +25. And it can provide continuous output current up to 1000mA (1-channel on) or 510mA/channel (8-channel on) by TSSOP-16 (Exposed Pad) package at +25. The SGM42406 provides a serial interface, which can read/write the data register/control register (configuring the energizing time & PWM duty cycle) through the serial interface, and also can diagnose the open-load or over-current fault condition. Multiple devices can be daisy-chain connected together to save the microcontroller resource.

The device has multiple protection functions, including open-load detection, over-temperature shutdown, over-current and short-circuit protections. Fault conditions are indicated on the nFAULT pin.

The SGM42406 is available in Green TSSOP-16 and TSSOP-16 (Exposed Pad) packages.

PIN CONFIGURATIONS

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FEATURES
  • Power Supply Voltage Range: 8V to 38V

  • 8-Channel Serial Interface Low-side Driver

  • Each Channel with Independent Over-Current Protection and Open-Load Detection

  • Integrated Diode for Inductive Load

  • Configurable PWM Chopping Duty Cycle

  • Configurable Energizing Time

  • Output Current Capability at TJ = +25:

    w TSSOP-16 Package:

        930mA (1-Channel On)

        310mA (8-Channel On)

    w TSSOP-16 (Exposed Pad) Package:

        1000mA (1-Channel On)

        510mA (8-Channel On)

    Can be Paralleled for Higher Current Capability

  • Enable Control:

    SGM42406A: Active-High

    SGM42406B: Active-Low

  • Noise Filter for Serial Interface

  • Data Output can be Read Back for Reliable Verification

  • Protection and Features:

    Under-Voltage Lockout (UVLO)

    Open-Load Detection (OL)

    Over-Temperature Shutdown (OTS)

    Over-Current Protection (OCP)

    Individual Channel Status Report

    Active-Low Fault Indication Pin

  • Available in Green TSSOP-16 and TSSOP-16 (Exposed Pad) Packages

APPLICATIONS

Home Appliances

ORDERING INFORMATION
Part Number Status Package Pins Pb-Free Temp Range
SGM42406AYTS16G/TR Production TSSOP-16 16 Y -40℃ to +85℃ Samples
SGM42406AYPTS16G/TR Production TSSOP-16 (Exposed Pad) 16 Y -40℃ to +85℃ Samples
SGM42406BYTS16G/TR Production TSSOP-16 16 Y -40℃ to +85℃ Samples
SGM42406BYPTS16G/TR Production TSSOP-16 (Exposed Pad) 16 Y -40℃ to +85℃ Samples