DRV8243SQRXYRQ1

DRV8243SQRXYRQ1 is a Texas Instruments dual full-bridge motor driver IC. It provides two DMOS H-bridge outputs to drive two motor windings (brushed DC or stepper) from a common supply. Features typically include PWM control, adjustable current regulation, and protections such as overcurrent, undervoltage, and thermal shutdown, along with fault/status reporting. It is intended for compact motor-drive applications (robotics, printers, automation) and supports a useful voltage/current range for small-to-mid size motors. The SQRXYRQ1 suffix encodes the specific package, temperature/routing options, RoHS/reel variant, and revision. For exact pinout, electrical specs, and thermal data, consult the TI datasheet. Use TI application notes and reference designs for implementation guidance.

Here are concise features of DRV8243SQRXYRQ1 (typical for this TI dual motor driver):
- Dual high‑current DMOS full‑bridge outputs for two motors or a bipolar stepper.
- Independent control per bridge via INx pins, with enable/sleep options.
- Programmable current limit (Imax) using a sense resistor and VREF; PWM current regulation for smooth torque.
- PWM chopping with protection-aware decay modes.
- Wide supply voltage range suitable for DC motors and steppers (high-voltage rail support).
- Protections: overcurrent/short-circuit, undervoltage lockout, overtemperature; cycle-by-cycle current limiting.
- Fault/diagnostic output to alert microcontroller when a fault occurs.
- Compact package: 24‑pin HTSSOP/SQR variant (RoHS compliant), suitable for small PCBs.
- No external voltage regulator needed for logic (integrated protections and simple interface).
Notes: For exact electrical limits (Vmax, Imax, timing, and pinout), refer to the TI DRV8243 datasheet and the specific SQRXYRQ1 variant.

- Pin count: 28 pins (SQR package, HTSSOP-28).
- Function: DRV8243SQRXYRQ1 is a dual full-bridge motor driver for brushed DC motors (two H-bridges). It provides two sets of MOSFET outputs (e.g., OUT1A/OUT1B and OUT2A/OUT2B) with independent control inputs, current regulation (via VREF/IS), and protection/diagnostic features (fault/diagnostic outputs, undervoltage/overcurrent/thermal protection) suitable for driving two motors or a single stepper motor.

Manufacturer: Texas Instruments Incorporated (TI).
TI is an American multinational semiconductor company that designs and manufactures analog and embedded-processing semiconductors for industrial, automotive, consumer, and communications markets.

Application areas:
- Brushed DC motor and stepper motor control in robotics and automation
- Small to mid-size motion control for 3D printers, CNC machines, and pick-and-place equipment
- Printers, scanners, and office equipment
- Consumer appliances (motorized blinds, fans, pumps)
- Automotive actuators and other compact motor-drive applications
- Industrial automation and robotics that require dual full-bridge, current regulation, and protection features

QFN (VQFN), 28-pin package with exposed pad (approx. 5×6 mm).