AP1025 Datasheet, PDF (1/21 Pages) Asahi Kasei Microsystems – 45V Single Stepper Motor Driver IC

[AP1025BEN]
AP1025BEN
45V Single Stepper Motor Driver IC
1. Description
The AP1025BEN provides a complete stepper motor driver solution with built-in LDMOS FET and its
internal capacitors type charge pump circuit for the 45V & 1.6A constant current operation. Clock-in input
mode and Parallel input mode is selectable by the setting of an external terminal. 2 phase, 1-2 phase(1/2step),
W1-2 phase(1/4step) can be selected during parallel input mode, and 2 phase, 1-2 phase(1/2step), W1-2
phase(1/4step), 4W1-2 phase(1/16step) can be selected during clock-in input mode to realize calm motor
operation. The IC is housed in a small 32-pin QFN package and excellent in heat dissipation. It also includes
under voltage detection and thermal shut down circuits. It is suitable for various types of stepper motors.
2. Features
 Selectable input logic (Clock in input, Parallel input)
 Excitation mode is configurable
— Parallel input mode 2 phase, 1-2 phase(1/2step), W1-2 phase(1/4step)
— Clock-in input mode 2 phase, 1-2 phase(1/2step), W1-2 phase(1/4step), 4W1-2 phase(1/16step)
 Operating Temperature Range -30C to +85C
 Operating Voltage Range
— Control Power Supply Voltage (VC) 3.0V to 5.5V
— Motor Power Supply Voltage (VM) 9.0V to 45V
 Low H-Bridge On Resistance
0.85Ω@25C
 Built-in UVLO (under voltage lockout circuit)
 Built-in TSD (thermal shut down circuit)
 Built-in charge pump circuit
 Built-in Sub-harmonic noise reduction function
 Built-in Phase Synchronous function
 Package
32-pin QFN (5.0mm□)
015000434-E-00
-1-
2015/01