3.8A Brushed DC Motor Driver with Current Sensing and Regulation, TMI8180A P2P DRV8231A.
TMI8180A
TMI8180A.pdf
TMI8180A.pdfFEATURES
? N-Channel H-bridge Motor Driver:
Drives One Bidirectional Brushed DC Motor,
Two Unidirectional Brushed DC Motors, or
Other Resistive and Inductive Loads
? Wide 4.5V to 37V Operating Voltage
? Up to 3.8A Peak Current
? Integrated Current Sensing and Regulation
? Supports 1.8V, 3.3V, 5V Logic Inputs
? Ultra-Low Power Sleep Mode
? VM Under voltage Lockout (UVLO)
? Integrated protection features
- Over current Protection (OCP)
- Thermal Shutdown (TSD)
? ESOP8 Small Package and Footprint
PIN CONFIGUTION
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FEATURES
? N-channel H-bridge brushed DC motor driver
? 4.5-V to 33-V operating supply voltage range
? Pin-to-pin, RDS(on), voltage, and current sense/
regulation variants (external shunt resistor and
integrated current mirror)
– DRV8870: 6.5-V to 45-V, 565-mΩ, shunt
– DRV8251: 4.5-V to 48-V, 450-mΩ, shunt
– DRV8251A: 4.5-V to 48-V, 450-mΩ, mirror
– DRV8231: 4.5-V to 33-V, 600-mΩ, shunt
– DRV8231A: 4.5-V to 33-V, 600-mΩ, mirror
? High output current capability: 3.7-A Peak
? PWM control interface
? Supports 1.8-V, 3.3-V, and 5-V logic inputs
? Integrated IPROPI current sensing for stall
detection and current regulation
? Low-power sleep mode
– <1-?A at VVM = 24-V, TJ= 25°C
? Small package and footprint
– 8-Pin WSON with PowerPAD?, 2.0 × 2.0 mm
– 8-Pin HSOP with PowerPAD?, 4.9 × 6.0 mm
? Integrated protection features
– VM undervoltage lockout (UVLO)
– Auto-retry overcurrent protection (OCP)
– Thermal shutdown (TSD)
PIN CONFIGUTION
