LB8653T Datasheet, PDF (1/14 Pages) Sanyo Semicon Device – DSC Motor Driver

Ordering number : ENN7982
LB8653T
LB8653FN
Monolithic Digital IC
DSC Motor Driver
Features
• An actuator driver for single focus digital camera is implemented on a single chip.
(1) Supports a constant voltage for the AF H-bridge×2 : a stepping motor (STM) ×1.
- Constant voltage drive.
- Enables 1-phase, 1-2 phase and 2-phase excitation.
- VC1 and VC2 allow the constant voltage for each channel to be set independently.
(2) Supports a constant current for the shutter H-bridge×1 : a voice coil motor (VCM) ×1.
- Constant current drive.
- A fast charge/discharge circuit allows for stabilization of response speed for the continuous drive mode.
- Allows offsetting of the constant current rising waveform with an external CR.
(The external CR is not required when an offset is not performed.)
→ Prevent current rising variation of coil caused by supply voltage fluctuation.
- Implements regenerative brake logic.
(3) Supports a constant voltage for the iris H-bridge×1 : a voice coil motor (VCM) ×1.
- Constant voltage drive.
- VC4 allows the independent constant voltage to be set.
[Actuator applications]
Focus
Shutter
Iris
Applications
STM
VCM
VCM
Any and all SANYO Semiconductor products described or contained herein do not have specifications
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at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor
products described or contained herein.
92706 / 62504 JO IM No.7982-1/14