Bipolar Stepper Motor Driver IC
Brand: PTC
Voltage Range: 4V ~ 16V
Peak Current: 1A
RMS Current: 700mA
Dual-Channel H-Bridge Driver
Low-Power Sleep Mode
Built-in Protection Circuits:
Thermal Shutdown (TSD) Protection
Under-Voltage Lock-Out (UVLO) Protection
Applications: Refrigerator airflow flap control, air conditioner venting control, home appliances, office automation equipment
Application Scenarios
Recommended Products
Product Description


PT2474 DESCRIPTION


The PT2474 is a dual channel H-bridge motor driver  that operates on wide supply voltage range from 4V  to 16V. 


The control logic pins have built-in phase  generator function; it could drive a four-wire bipolar  stepping motor with only 2 input pins. 


The input  waveform is generates by the external MCU and  phase relation between two input pins is a standard  full-step excitation



PT2474 BLOCK DIAGRAM:



APPLICATIONS 

Airflow flap control for refrigerators. 

Air Conditioner venting control 

Home appliance 

Office automation machines


Product Features

FEATURES 

  • Wide Supply Voltage Range: 4V to 16V 

  • Single voltage supply with built-in regulator; control logic supply is not necessary. 

  • Dual H-bridge Drivers for a bipolar stepping motor 

  • MOSFET RDS(on) Resistance, HS + LS =1.2Ω 

  • Maximum Output Current: 1.0 Amp (Peak),  700mA (RMS). 

  • Low Power Sleep mode 

  • Built-in Protection Circuits with Thermal Shutdown (TSD), Under Voltage Lock-Out (UVLO) 

  • Output current limiting (OCL) during output  terminal shorted to GND. 

  • 10Pins Small Outline Package (SOP), Pitch=1.0mm.