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UA9849 Datasheet

Part Number UA9849
Manufacturers Unisonic Technologies
Logo Unisonic Technologies
Description 3-PHASE MOTOR DRIVER
Datasheet UA9849 DatasheetUA9849 Datasheet (PDF)

UNISONIC TECHNOLOGIES CO., LTD UA9849 LINEAR INTEGRATED CIRCUIT 3-PHASE MOTOR DRIVER FOR CD-ROMS „ DESCRIPTION The UTC UA9849 is ICs developed for CD-ROM spindle motor drives. These ICs possess a short brake and reverserotation brake for two types of brake functions, and also contain FG output and rotation direction detection (FR) circuits, making them high-functionality and high-performance ICs. „ FEATURES * Three-phase, full-wave, pseudo-linear drive system. * Built-in power save and the.

  UA9849   UA9849






3-PHASE MOTOR DRIVER

UNISONIC TECHNOLOGIES CO., LTD UA9849 LINEAR INTEGRATED CIRCUIT 3-PHASE MOTOR DRIVER FOR CD-ROMS „ DESCRIPTION The UTC UA9849 is ICs developed for CD-ROM spindle motor drives. These ICs possess a short brake and reverserotation brake for two types of brake functions, and also contain FG output and rotation direction detection (FR) circuits, making them high-functionality and high-performance ICs. „ FEATURES * Three-phase, full-wave, pseudo-linear drive system. * Built-in power save and thermal shutdown functions. * Built-in current limiter and Hall bias circuits. * Built-in FG output. * Built-in rotation direction detector. * Built-in reverse rotation prevention circuit. * Built-in short brake pin. „ ORDERING INFORMATION Normal UA9849-SH1-T Ordering Number Lead Free UA9849L-SH1-T Halogen Free UA9849G-SH1-T HSOP-28 Package HSOP-28 Packing Tube www.unisonic.com.tw Copyright © 2012 Unisonic Technologies Co., Ltd 1 of 12 QW-R109-006,C UA9849 LINEAR INTEGRATED CIRCUIT „ PIN DESCRIPTION PIN # 2 4 7 8 9 10 11 12 13 14 15 17 18 20 21 22 23 24 25 26 27 28 FIN PIN NAME A3 A2 A1 GND H1+ H1H2+ H2H3+ H3VH CNF SB FR ECR EC PS FG VCC VM2 VM1 RNF - FUNCTOIN Output Output Output GND Hall Signal Input Hall Signal Input Hall Signal Input Hall Signal Input Hall Signal Input Hall Signal Input Hall Bias For connection of phase compensation capacitor Short brake Rotation direction detection Output voltage control reference Output voltage control Power save FG signal output Power.


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