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KA3011

Fairchild
Part Number KA3011
Manufacturer Fairchild
Description 3-Phase BLDC Motor Driver
Published Apr 25, 2005
Detailed Description www.fairchildsemi.com KA3011BD 3-Phase BLDC Motor Driver Features • 3-phase, full-wave, linear BLDC motor driver • Pow...
Datasheet PDF File KA3011 PDF File

KA3011
KA3011


Overview
www.
fairchildsemi.
com KA3011BD 3-Phase BLDC Motor Driver Features • 3-phase, full-wave, linear BLDC motor driver • Power save at stop mode • Built-in current limiter • Built-in TSD (Thermal shutdown) circuit • Built-in 3X or 1X hall FG output • Built-in hall bias circuit • Built-in rotational direction detector • Built-in reverse rotation preventer • Built-in short braker • Corresponds to 3.
3V or 5V DSP Description The KA3011BD is a monolithic IC, suitable for a 3-phase spindle motor driver of a CD-media system.
28-SSOPH-375 Typical Applications • Compact disk ROM (CD-ROM) spindle motor • Compact disk RW (CD-RW) spindle motor • Digital video disk ROM (DVD-ROM) spindle motor • Digital video disk RAM (DVD-RAM) spindle motor • Digital video disk Player (DVDP) spindle motor • Other compact disk media spindle motor • Other 3-phase BLDC motor Ordering Information Device KA3011BD Package 28-SSOPH-375 Operating Temp.
−25°C ~ +75°C −25°C ~ +75°C KA3011BDTF 28-SSOPH-375 Rev.
1.
0.
1 February.
2000.
©2000 Fairchild Semiconductor International 1 KA3011BD Pin Assignments VCC ECR CS1 FGS VM NC FG EC NC 16 13 H3+ VH 15 14 H3− SB 18 11 H2+ FIN(GND) PC1 17 12 H2− S/S DIR 20 9 H1+ 28 27 26 25 24 23 22 21 19 KA3011BD 1 NC 2 A3 3 NC 4 A2 5 NC 6 NC 7 A1 FIN(GND) 8 GND 10 H1− Pin Definitions Pine Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Pin Name NC A3 NC A2 NC NC A1 GND H1+ H1− H2+ H2− H3+ H3− VH NC PC1 SB FGS DIR ECR EC S/S FG VCC NC VM CS1 I/O O O O I I I I I I I I I O I I I O No connection Output (A3) No connection Output (A2) No connection No connection Output (A1) Ground Hall signal (H1+) Hall signal (H1−) Hall signal (H2+) Hall signal (H2−) Hall signal (H3+) Hall signal (H3−) Hall bias No connection Phase compensation capacitor Short brake Frequency generation selection Rotational direction output Output current control reference Output current control voltage Power save (Start/Stop switch) Frequency generation w...


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