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LB8658FN Datasheet(PDF) 1 Page - Sanyo Semicon Device |
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LB8658FN Datasheet(HTML) 1 Page - Sanyo Semicon Device |
1 / 16 page 92706 / 62504 JO IM No.7983-1/16 LB8658FN LB8658PL Features • An actuator driver for 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. - ICH allows current setting for each current carrying direction. → Supports current suppression while the shutter is Open. - A fast charge/discharge circuit allows for stabilization of response speed of the continuous drive mode. - Allows offsetting of the constant current rising waveform with an external C. (The external C is not required when an offset is not performed) → Prevents 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. (4) Supports a constant voltage for the zoom H-bridge ×1 : a DC motor (DCM) ×1. - Constant voltage drive. - VC3 allows the independent constant voltage to be set. - Built-in short brake. (5) Supports an open collector output for the photo sensor ×3 : a photo sensor (PR/PI) ×3. - AFPI and ZMPI are turned ON in synchronization with focus mode and zoom mode, respectively. - ZMPR can be controlled independently, regardless of mode. [Actuator applications] Focus Shutter Iris Zoom Applications STM VCM VCM DCM Continued on next page. Ordering number : ENN7983 Monolithic Digital IC DSC Motor Driver Any and all SANYO Semiconductor products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO Semiconductor representative nearest you before using any SANYO Semiconductor products described or contained herein in such applications. SANYO Semiconductor assumes no responsibility for equipment failures that result from using products 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. |
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