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AN41908A - Lens Driver

General Description

AN41908A is a lens motor driver IC for camcorder and security-camera featuring the functions of Iris control.

Voltage drive system and several torque ripple correction techniques enable super- low noise microstep drive.

Key Features

  • Voltage drive system 256-step microstep drivers (2 systems) (Super low noise Zoom and Focus drive) Built-in Iris controller Motor control by 4-line serial data communication 2 systems of open-drain for driving LED PCB space saving. Low power consumption of Iris drive by PWM 44 pin Plastic Quad Flat Non-leaded Package (QFN Type).

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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AN41908A Lens Driver IC for camcorder and security-camera incorporating Iris control FEATURES Voltage drive system 256-step microstep drivers (2 systems) (Super low noise Zoom and Focus drive) Built-in Iris controller Motor control by 4-line serial data communication 2 systems of open-drain for driving LED PCB space saving. Low power consumption of Iris drive by PWM 44 pin Plastic Quad Flat Non-leaded Package (QFN Type) DESCRIPTION AN41908A is a lens motor driver IC for camcorder and security-camera featuring the functions of Iris control. Voltage drive system and several torque ripple correction techniques enable super- low noise microstep drive. APPLICATIONS Camcorder, Security-camera SIMPLIFIED APPLICATION Noise Level (dB) 2.50Hz 32.50Hz 62.50Hz 92.50Hz 122.50Hz 152.