AP1037AER Datasheet, PDF (1/24 Pages) Asahi Kasei Microsystems – Stepper Motor Driver IC equipped with Active Decay Control

[AP1037]
- Preliminary -
AP1037
Stepper Motor Driver IC equipped with Active Decay Control
1. General Description
The AP1037 is driver for bipolar stepper motors. It supports 35V motor power supply and 1.5A constant
current operation. The AP1037 can automatically control Decay setting (slow, fast, pre-fast) in the IC inside
by AKM original "Active Decay Control". The AP1037 can achieve optimal current setting, therefore will
reduce current ripple and bring the motor rotation operation of the high efficiency. The input interface is
clock-in method and supports from 2 Phase (full step) to 2W1-2 Phase (1/8step) excitation. In addition, the
AP1037 is built-in a regulator for control circuit and capable of driving a motor only by motor power supply
voltage (VM), therefore can facilitate design for the application.
It is housed in a small QFN package with good heat dissipation performance, therefore the AP1037 is suitable
for the stepping motor drive in a space-saving and high current.
2. Features
 Built-in PWM current control stepper motor driver
 Single Power Supply Operation
 Motor Operating Voltage
 Max Output Current
 On-Resistance (High+Low)
 Input Interface
 Excitation Mode
 Selectable PWM chopper frequency
 Spike Noise Blanking Function
 Power Saving Function
 Selectable Motor Rotation Direction
 Corresponding to 3.3V/5V input signal
 Built-in Charge Pump Circuit
 Under Voltage Lockout Circuit(UVLO)
 Thermal Shutdown Circuit (TSD)
 Over Current Protection Circuit (OCP)
 Operating Temperature Range
 Package
 Pin Compatible Lineups
 Applications
Active Decay Control
Built-in Regulator for control circuit
8.0 ~ 35.0V
1.5A
0.95Ω(typ.) @Ta=25℃
Clock-in method
2 Phase (Full step)
1-2 Phase (1/2 step)
W1-2 Phase (1/4 step)
2W1-2 Phase (1/8 step)
39kHz/77kHz
Without an external noise filter
VM Power Consumption is less than10µA
(Ta=25°C)
Forward/Reverse
-30 °C ~ +85°C
AP1037AER: 24-pin QFN (4.0mm□)
AP1037AEN: 32-pin QFN (5.0mm□)
AP1037AER, AP1037AEN : 1.5A
AP1034AER, AP1034AEN : 2.0A
MFP/LBP, Scanner, Robotics
ATM, Vending machines, Ticket machines,
Moneychangers, Point of Sales System (POS)
devices and etc.
Rev.0.4
-1-
2016/06