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µPD168104
Stepping Motor Driver
6-channel Operational Amplifier, IRIS Driver, and 4-channel H-bridge Driver
Overview
The µPD168104 is the motor driver IC with IRIS control circuit, operational amplifier and 4-ch H-bridge output. Smooth operation is possible for IRIS control with linear method.
The package is 56-pin thin type QFN and then it helps reduce the mounting area and height.
The µPD168104 is suitable for the lens drive of a camcorder, DSC, etc.
Features
- 5-ch H-bridge circuits employing power MOSFET
Stepping motors driver : 4 circuits, IRIS driver : 1 circuit. - Low-voltage driving
LVDD = 2.7 to 3.6 V
AVDD = 4.5 to 5.5 V
VM = VSHUTTER = VIRIS = 2.7 to 5.5 V - Output on-state resistance:
2.0 Ω(TYP.)
3.0 Ω(MAX.)(4-ch H-bridge block, sum of top and bottom stage, VM = 5 V) - PWM output (ch1 to ch4)
- Output current
DC current: ±0.3 A/ch (when each channel is used independently)
Peak current: ±0.7 A/ch (when each channel is used independently) - 6-ch general-purpose operational amplifier
Input offset voltage: ±5 mV
Input voltage range: 0 to AVDD 1.5 V
Output voltage range: 0.2 to AVDD 0.2 V - 1-ch 1/2AVDD output amplifier
- IRIS driver block supporting linear driving
- Pre-driver amplifier of the IRIS driver block
- Pre-driver amplifier of the IRIS driver block
- Undervoltage lockout circuit
Output circuit and amplifier stop at LVDD = 1.7 V (TYP.) or less. - Overheat protection circuit
Operates at 150ºC or more and shuts down the output circuit. - Mounted on 56-pin plastic WQFN (8 x 8)
Ordering Information
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Document
Block Diagram
© 1995-2008 NEC Electronics Corporation
