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Japan
µPD168118B
| Overview | Features | Ordering Information | Block Diagram |
Overview
The µPD168118B is a 7-channel H-bridge driver with a micro step function supporting pulse input that consists of a CMOS controller and a MOS output stage. It can reduce the current consumption and the voltage loss at the output stage compared with a conventional driver using bipolar transistors, thanks to employment of a MOS process. Moreover, at the µPD168118B, micro step control up to 256 divisions can perform stepping motor drive by the pulse input, and motor can be driven by low noise and low vibration.
The package is a 64-pin FLGA that helps reduce the mounting area and height.
The µPD168118B can be used to drive two stepping motors, or two DC motors and one coil.
Features
- Seven H-bridge circuits employing power MOS FET
- Low-voltage driving
VDD = 2.7 to 3.6 V
VM = 2.7 to 5.5 V - Output on-state resistance: 1.5 Ω TYP., 2.0 Ω MAX. (sum of top and bottom stages, ch1 to ch6)
1.0 Ω TYP., 1.5 Ω MAX. (sum of top and bottom stages, ch7) - PWM output (ch1 to ch6), linear output (ch7)
- Output current
- ch1 to ch6
DC current: 0.4 A/ch (when each channel is used independently)
Peak current: 0.7 A/ch (when each channel is used independently) - ch7
DC current: 0.5 A/ch (when used independently)
Peak current: 0.7 A/ch (when used independently)
- ch1 to ch6
- Input logic frequency: 150 kHz supported
- Under-voltage lockout circuit
Shuts down the internal circuit at VDD = 1.7 V TYP. - Overheat protection circuit
Operates at 150°C or more and shuts down internal circuitry - High-accuracy reference voltage in ch7 (±5%)
- On-chip photo interrupter PI driver (5 Ω on-state resistance)
- On-chip photo interrupter PI buffer switch
- Motor operation settings and ch1 to ch4 and ch7 current settings are possible with 8-bit serial data
- Mounted on 64-pin FLGA (5 x 5 mm) (0.5 mm pitch)
Ordering Information
* Pb-free (This product does not contain Pb in external electrode and other parts). |
Block Diagram
