The product is a two-channel motor driver module with a built-in motor driver IC HT7K1411, supporting four driver functions, forward, backward, brake, and standby. It can drive two DC motors, a 2-phase 4-wire stepper motor, or a 4-phase 5-wire stepper motor, making it ideal for applications such as smart cars, DIY robotic arms, and more.
Power supply:
- Logical power: 2.5V~5.5V
- Motor: 5V~24V
Standby current: < 3.3mA @24V
Motor driver IC: HT7K1411
- Driver function: forward, backward, brake, standby
- Maximum current per channel: 1.2A
- Maximum current of all channels: 2.4A
- Protect functions: over current protection, over temperature protection, and output short-circuit protection
Supported motor (select one):
- Two DC motors
- One two-phase four-wire stepper motor
- One four-phase five-wire stepper motor
Interface: I/O
Dimension: 46 x 40.6 x 14.41 mm
Net weight: 11.4g
HARDWARE OVERVIEW
PIN DESCRIPTION
Pin
Pin name
Function
1
VDD
Logical power supply: 2.5V~5.5V
2
GND
Ground (logical)
3
M1A
Motor control signal input
4
M1B
Motor control signal input
5
M2A
Motor control signal input
6
M2B
Motor control signal input
7
CS2
Motor2 current sensing point
8
CS1
Motor1 current sensing point
9
OUT2B
Motor output
10
OUT2A
Motor output
11
OUT1B
Motor output
12
OUT1A
Motor output
13
VM
Motor power supply: 5V~24V
14
GND
Ground (motor)
PRODUCT COMPARISON
Part number
BM22D1221-1
BM22D1421-1
Channel
2-channel
4-channel
IC
HT7K1411 x 2
HT7K1411 x 4
Power supply
⬥ Logical power: 2.5V~5.5V
⬥ Motor: 5V~24V
⬥ Logical power: 2.5V~5.5V
⬥ Motor: 5V~24V
Supported motor
⬥ Two DC motors
⬥ One 2-phase 4-wire stepper motor
⬥ One 4-phase 5-wire stepper motor
⬥ Four DC motors
⬥ Two 2-phase 4-wire stepper motor
⬥ Two 4-phase 5-wire stepper motor
Max. current
per channel
1.2A
1.2A
Interface
I/O
I/O
RESOURCES
IC: HT7K1411, 1 Channel, 24V, Peak Current 3.2A H-Bridge Driver, including datasheet, package information, etc.
