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µPD168117A
Stepping Motor Driver
Pulse input 7-channel H-bridge Driver
Overview
The µPD168117A is monolithic 7-ch H-bridge driver LSI which uses power MOSFETs in the output stages. By using the MOS process, this driver LSI has substantially improved the voltage loss of the output stage and power consumption as compared with conventional driver circuits using bipolar transistors.
Two stepping motors, two DC motors, and a coil can be driven simultaneously pulse input control supported, which enables a reduction in the number of CPU signal lines.
Current feedback 128-division micro-step driving supported, which enalbes silent and low-oscillation motor driving.
Features
- 7-ch H-bridge driver circuits
- Low voltage operating
VDD = 2.7 to 3.6 V
VM = 2.7 to 5.5 V - Low on-state resistance (total on-state resistance of upper and lower MOSFETs)output
1.0 Ω (TYP.), 1.5 Ω (MAX.) (1 to 4 ch, 7 ch)
1.5 Ω (TYP.), 2.0 Ω (MAX.) (5, 6 ch) - Output current
1 to 6-ch
DC current: 0.4 A/ch (when each channel is used independently)
Peak current: 0.7 A/ch (when each channel is used independently)
7-ch
DC current: 0.5 A/ch (when used independently)
Peak current: 0.7 A/ch (when used independently) - Input logic frequency 100 kHz
- UVLO circuit
- Thermal shutdown circuit
- 64-pin plastic FLGA (6 x 6)
Ordering Information
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Document
Block Diagram
