Dual H Bridge Driver IC
SGM42541 SGM42541.pdf

No.13803

FEATURES

  Motor Supply Voltage Range: 8V to 45V

  Dual H-Bridge Motor Driver

  PWM Control Interface

  2-Bit Current Control Supports up to 4 Current Levels

  Low On-Resistance: 0.42Ω for HS + LS, TJ = +25℃

  Up to 2.5A Drive Current at VM = 24V, TJ = +25℃

  Low Current Sleep Mode

  Built-in 3.3V Reference Output

  Full Set of ProtectionsUnder-Voltage Lockout (UVLO)

  Over-Current Protection (OCP)

  Thermal Shutdown (TSD)

  Fault Condition Indication Pin (nFAULT)

  Available in a Green TSSOP-28 (Exposed Pad) Package

DESCRIPTION

The SGM42541 is a dual H-bridge motor driver suitable for automated positioning and movement control in equipment such as printers, scanners and robotic mechanisms. The SGM42541 has two H-bridge drivers, and can drive a bipolar stepper motor or two DC motors. The output driver block for each consists of N-MOSFETs configured as full H-bridge to drive the motor windings. With proper heatsinking, the SGM42541 can deliver up to 2.5A peak output current per channel (at VM = 24V and TJ = +25℃).

A simple parallel digital control interface is compatible with industry-standard devices. Decay mode is programmable. Fast, slow and mixed decay modes can be provided according application requirements. A 2-bit current control scheme allows up to 4 discrete current levels. A number of protection features are provided in the device including over-current, short-circuit, under- voltage lockout and thermal shutdown. 

The SGM42541 is available in a Green TSSOP-28 (Exposed Pad) package. 

APPLICATION CIRCUIT
PIN CONFIGUTION
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