Description

The PBL3798R1 is a switch-mode (chopper), constant-current driver IC with two channels, designed for use with a two-phase stepper motor. It is an upgraded version of the PBL 3771 by Ericsson, with improved power efficiency and higher current output. With a maximum output current of 1A per channel, it is capable of delivering substantial power to the stepper motor. Additionally, it has a low power dissipation of only 1.8W at 2x750mA output current.

Specifications and Features

• Dual chopper driver in a single package
• Operating temperature: 0°C to +85°C
• Continuous output current: 1.0A per channel
• Low power dissipation: 1.8W at 2x750mA output current
• Close matching between channels for high microstepping accuracy
• Specially matched to the Dual DAC PBM 3960
• Available in plastic 22-pin batwing DIP package or 28-pin power PLCC with lead-frame for heat-sinking through PC board copper

Application Scenarios

The PBL3798R1 IC chip is commonly used in various applications that require precise control of a two-phase stepper motor. Some potential application scenarios include robotics, automation systems, 3D printing, CNC machines, and medical equipment.

Comparison

• High current output capability of 1A per channel
• Low power dissipation for improved efficiency
• Close matching between channels for high microstepping accuracy
• Compatible with the Dual DAC PBM 3960
• Available in two package options for flexibility in design

• May not be suitable for applications requiring higher current output
• Limited temperature range of operation: 0°C to +85°C