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LB11870 데이터시트(PDF) 1 Page - Sanyo Semicon Device |
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LB11870 데이터시트(HTML) 1 Page - Sanyo Semicon Device |
1 / 14 page 62707 MS IM B8-9164 / 80102 AS (OT) No.7256-1/14 LB11870 Overview The LB11870 is a three-phase brushless motor driver developed for driving the motors used with the polygonal mirror in laser printers and plain paper copiers. It can implement, with a single IC chip, all the circuits required for polygonal mirror drive, including speed control and driver functions. The LB11870 can implement motor drive with minimal power loss due to its use of direct PWM drive. Functions • Three-phase bipolar drive • Direct PWM drive • Includes six high and low side diodes on chip. • Output current control circuit • PLL speed control circuit • Phase lock detection output (with masking function) • Includes current limiter, thermal protection, rotor constraint protection, and low-voltage protection circuits on chip. • Deceleration type switching circuit (free running or reverse torque) • PWM oscillator • Power saving circuit Ordering number : EN7256A Monolithic Digital IC For Polygonal Mirror Motors Three-Phase Brushless Motor Driver Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer 's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer 'sproductsor equipment. Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. |
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