Stepping Motor Driver IC


PT2479L

The PT2479L is a monolith integrated motor driver designed for printers, scanners or home appliance. The built-in two channel H-bridges designs for driving a bipolar stepping motor or two DC-brushed motors.

The H-bridge driver is consists by all of N-channel MOSFET allows driving up to 2.5A maximum output current (VM=24 V, Ta=25°C).

The dual-input interface is a common configuration for the motor driver; it is very versatile to control the H-bridge switches to determinate motor winding current and phase. The motor current decay mode is programmable by a tri-states input pin.

The PT2479L is available in a 28-pin HTSSOP package with thermal pad.

FEATURES


● 8V to 40V maximum supply voltage

● 2.5A maximum driving current at VM=24V (with additional heatsink)

● Low switches conduction resistance: 0.4Ω(typ), high side + low side in Tj=25℃.

● Dual-in control interface

● H-bridge driver outputs with four levels PWM constant current regulation.

● Winding current decay modes

- mixed decay

- slow decay

- fast decay

● Drives single bipolar stepping motor or dual brushed dc motors

● Built-in 3.3V reference voltage output

● Low-power sleep mode

● Protection features

- Over current protection (OCP)

- Thermal shutdown (TSD)

- VM under voltage lock out (UVLO)

- Fault indication output (FALTN)

● Package Type – HTSSOP 28

APPLICATIONS


● Automatic teller machines

● Video security cameras

● Printers

● Scanners

● Office automation machines

● Amusement machines

● Factory automation

● Robotics

資源下載

Documentation

TitleFileVersionDate
DatasheetPT2479L pre1.1_E.pdfPRE 1.12024/12/26

Tools

Application Note