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LB1821M Datasheet(PDF) 1 Page - Sanyo Semicon Device |
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LB1821M Datasheet(HTML) 1 Page - Sanyo Semicon Device |
1 / 16 page Overview The LB1821M is a pre-driver IC that supports direct PWM drive and is appropriate for the power brushless motors used in office automation equipment. A motor drive circuit with the desired output capability (voltage and current characteristics) can be constructed by attaching a driver array at the IC output. The LB1821M includes on chip a speed control circuit that allows the motor speed to be varied using an external clock. Features • Direct PWM drive output • Speed discriminator + PLL speed control circuit • FG and integrating amplifiers • Forward/reverse switching circuit • Braking circuit (short braking) • Speed lock detection output • Full complement of on-chip protection circuits, including lock protection, current limiter, and thermal shutdown protection circuits. Package Dimensions unit: mm 3148-QFP44MA Monolithic Digital IC Ordering number : EN5686 63097HA(OT) No. 5686-1/16 SANYO: QIP44MA [LB1821M] SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN Power Brushless Motor Pre-Driver IC for OA Equipment LB1821M Parameter Symbol Conditions Ratings Unit Maximum supply voltage VCC max 9V Maximum input current IREG max VREG pin 10 mA Output current IO max UL, UV, and WL outputs 30 mA Allowable power dissipation Pd max 0.9 W Operating temperature Topr –20 to +80 °C Storage temperature Tstg –55 to +150 °C Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Supply voltage VCC 4.4 to 7.0 V Input current range IREG VREG pin (7 V) 1 to 5 mA FG Schmitt output applied voltage VFGS 0 to 8 V FG Schmitt output current IFGS 0 to 5 mA Lock detection output current ILD 0 to 20 mA Allowable Operating Ranges at Ta = 25°C |
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