SGM42609.pdf
No.10848
● Single H-Bridge Motor Driver can Drive One DC Brush Motor
● Low MOSFET On-Resistance: HS + LS 480mΩ
● Output Current 1.5A RMS, 2A Peak Current (at VCC = 5V, +25℃)
● 2.7V to 24V Wide Power Supply Voltage Range
● PWM Winding Current Regulation/Limiting
● Fault Indication Output
● Available in Green MSOP-10 and TDFN-3×3-10L Packages
The SGM42609 provides a single bridge motor driver solution for battery-powered toys, toothbrushes and other low-voltage or battery-powered motion control applications. The device has one H-bridge driver, and can drive one DC brush motor, solenoid, or other inductive load. The output driver block of H-bridge consists of N-channel power MOSFETs configured as an H-bridge to drive the motor windings. H-bridge includes circuitry to regulate or limit the winding current. With proper PCB design, H-bridge of the SGM42609 is capable of driving up to 1.5A RMS (or DC) continuously, at +25℃ with a VCC supply of 5V. It can support peak current of up to 2A. Current capability is reduced slightly at lower VCC voltage.
Internal shutdown functions with a fault output pin are provided for H-bridge over-current protection, power supply under-voltage lockout, charge pump under- voltage lockout and over-temperature protection. If one of fault conditions happens, the SGM42609 would prevent each input PWM signal from driving H-bridge and H-bridge is in high impedance status.
