News Release

- New Product Information -

AKM introduces new motor drivers that can be driven by a single 32V power supply for MFP/ATM/POS terminals

Product Name
Power Management > Motor Driver
2ch H-Bridge Small Motor Driver
Motor Drive Voltage: 8V to 32V
Output Peak Current: 2.0A
Office equipment such as multifunction printers (MFP), laser beam printers (LBP), hand scanners, ATMs, vending machines, ticket vending machines, exchange machines, POS terminals


Asahi Kasei Microdevices Corporation, (AKM), introduces new motor drivers that can operate with a single 32 V power supply. First, the AP1040, a motor driver with a maximum output current of 2.0A has been released. Since the AP1040 has a 2ch H-Bridge circuit, it is capable of driving two DC motors, or one stepping motor. In addition, the AP1041 has a single channel H-Bridge circuit with 1.0A of maximum output current and the AP1042 with 5.0A maximum output current. Release is slated for Q4 2018.
These devices are assumed to be used in a 24V system, such as office automation equipment like a multifunction printers (MFP), laser beam printers, ATMs, POS terminals, and so on.


● Output current adjustment with built-in PWM control circuit

The AP1040 can control the PWM duty-cycle with the voltage input to the VREF pin. This function makes it possible to control the speed of the motor and suppress the peak current upon power up. In addition, a sense resistor is not necessary with the AP1040.

Current Peak Value
● Adjustable Overcurrent Detection Time

The AP1040 has an overcurrent detection circuit at the output stage. The detection time can be adjusted from 1.5 to 11μs depending on the resistor value connected to the TBLANK pin. This function makes it possible to apply optimum overcurrent protection when changing the motor or power supply.
In addition, the AP1040 integrates low-voltage protection, overcurrent protection, overheat protection, and shoot-through current prevention circuits, and it is equipped with the FLAG pin for the period during protection function operation, enhancing safety.

PWM Control Circuit

Main Specifications

Product Name AP1040AEN AP1041AEN AP1042AEN
Number of Channels2ch1ch1ch
Maximum Output Current (DC) 1.2A0.9A2.2A
Maximum Output Current (Peak) 2.0A1.0A5.0A
Motor Drive Voltage (Rated) 8 to 32V (35V)
H-Bridge On-Resistor (TOP+BOT)
Under-Voltage Lockout Voltage (UVLO) 6.35V (Typ.)
Thermal Shutdown Circuit (TSD) 175°C (Typ.)
Overcurrent Protection Circuit (OCP) 4.5A (Typ.)2.2A (Typ.)10.0A (Typ.)
Other FunctionsPWM control with the VREF pin
Parallel/Complementary input switching terminal (SEL)
Terminals for adjusting overcurrent protection detection time
The FLAG pin for abnormality detection
Operating Temperature Range-30 to 85°C
Package24-pin QFN  (4.0 x 4.0mm)
StatusMPQ4 2018Q4 2018
* Information on this page is current on the date of press release.
* AKM is a trademark of Asahi Kasei Microdevices Corporation in Japan, Europe and the United States.
* Appellations, company names and product names on this page are trademarks or registered trademarks of respective companies.

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