SGM42600.pdf
No.10847
? Dual H-Bridge Current-Controlled Motor Driver Capable
of Driving Two DC Motors or One Stepper Motor
? Low MOSFET On-Resistance: HS + LS 410mΩ
? Output Current 1.5A RMS, 2A Peak per H-Bridge
(at VCC = 5V, +25℃)
? 2.7V to 24V Wide Power Supply Voltage Range
? PWM Winding Current Regulation/Limiting
? Fault Indication Output
? Available in Green TSSOP-16 (Exposed Pad) and
TQFN-4×4-16L Packages
The SGM42600 provides a dual bridge motor driver solution for battery-powered toys, printers and other low-voltage or battery-powered motion control applications. The device has two H-bridge drivers, and can drive two DC brush motors, a bipolar stepper motor, solenoids, or other inductive loads. The output driver block of each H-bridge consists of N-channel power MOSFETs configured as an H-bridge to drive the motor windings. Each H-bridge includes circuitry to regulate or limit the winding current.
With proper PCB design, each H-bridge of the SGM42600 is capable of driving up to 1.5A RMS (or DC) continuously, at +25℃ with a VCC supply of 5V. It can support peak currents of up to 2A per H-bridge. Current capability is reduced slightly at lower VCC voltages.
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 SGM42600 would prevent each input PWM signal from driving H-bridge and H-bridge is in high impedance status. A low-power sleep mode is also provided to save power dissipation. If nSLEEP is low, the SGM42600 will enter into sleep state.
