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L9935013TR is a two-phase stepper motor driver circuit designed for driving bipolar stepper motors.

The L9935013TR device can be controlled via a serial interface (SPI). All protection functions required for designing a safe system (short-circuit protection, over-temperature protection, cross-conduction protection, etc.) are integrated.

L9935013TR Specifications

Operating voltage: 8 V – 24 V (logic and load share the same power supply)

Output current: 1.2 A (continuous, peak 2 A)

Drive stage: 4-channel half-bridge (H-bridge), low-power DMOS

Control interface: SPI (speed, current, microstepping settings)

Stepping Mode: Full step / Half step (1, 1/2)  

Protection Features: Over-temperature, under-voltage, over-current, cross-conduction protection  

Diagnostics: Open-circuit, short-circuit, over-temperature status readback  

Operating Junction Temperature: –40 °C to +150 °C  

Package: PowerSO-20 (20-SOIC, 11 mm wide, exposed pad)

L9935013TR Typical Applications

• Automotive HVAC damper actuators, headlight adaptive steering

• In-vehicle instrument panel pointer stepper motors

• Industrial printers, textile machines, ATM mechanisms

• Security pan-tilt units, smart home valve/curtain control

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