“Electric toys, POS printers, video security cameras, office automation equipment, game consoles, robots, these seemingly unrelated modern Electronic products all have a common center of motion: motors and motor drive circuits. The SGM42600 and SGM42609 launched by Shengbang Microelectronics are high-performance DC integrated motor drivers suitable for such applications.
A DC motor usually consists of two parts: a stator and a rotor. The static part of the DC motor is called the stator, and the main function of the stator is to generate a magnetic field. The part that rotates during operation is called the rotor. The main function is to generate electromagnetic torque and induced electromotive force. It is the hub of energy conversion for DC motors, so it is usually called armature. The armature resistance is very small, resulting in a large starting current when directly started, which can usually reach 10-20 times the rated current. Excessive starting current will cause the voltage of the power supply network to drop too much, affecting the normal operation of other circuits; worsening the commutation of the motor, and even burning the motor; at the same time, excessive impact torque will damage the armature winding and the transmission mechanism. Therefore, except for motors with small capacity, direct starting is generally not allowed, and the motor driver can provide good starting control.
SGM42600/ SGM42609 provide guarantee for willful operation.
In addition to the advantages of integrated motor driver with higher performance, better protection, less board area and simplified design, the SGM42609 and SGM42600 products launched by Shengbang Microelectronics also have higher working voltages for the same type of products, which is safe for the system. Provide more protection.
Figure 1 SGM42600 application circuit diagram
Figure 2 SGM42609 application circuit diagram
Table 1 H-bridge control logic
Application of SGM42609/ SGM42600
● POS printer
● Video security camera
● Valve control motor
● Smart lock
Features of SGM42609/SGM42600
● Single/double H-bridge current control motor driver
○ SGM42609 can drive a DC motor
○ SGM42600 can drive two DC motors or one stepper motor
○ Wide input voltage range: 2.7V to 24V
○ Output current: 1.5A RMS, 2A Peak current for each H bridge
○ HS+LS MOSFET on-resistance: 410mΩ (at VCC=5V, TA=+25℃)
● PMW winding current regulation/current limit
● Low-power sleep mode
● Protection functions such as overcurrent and thermal protection
● Support -40℃ to +125℃ operating temperature range