3-Phase BLDC Motor Driver
www.fairchildsemi.com
FAN8423D3
3-Phase BLDC Motor Driver
Features
• • • • • • • • • • 3-phase, full-wave, linear BLDC...
Description
www.fairchildsemi.com
FAN8423D3
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 and 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 5 V DSP
Description
The FAN8423D3 is a monolithic IC, suitable for a 3-phase spindle motor driver of a CD-media system.
28-SSOPH-375SG2
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 FAN8423D3 Package
28-SSOPH-375SG2
Operating Temp. −25°C ~ +75°C −25°C ~ +75°C
FAN8423D3TF 28-SSOPH-375SG2
Rev. 1.0.1 Oct. 2000.
©2000 Fairchild Semiconductor International
FAN8423D3
Pin Assignments
FG1X FG3X VCC ECR CS1 NC EC NC 16 13 H3+ SB VH 15 14 H3FIN(GND) PC1 17 12 H2S/S DIR 20 VM 27
28
26
25
24
23
22
21
19
18
FAN8423D3
1 NC
2 A3
3 NC
4 A2
5 NC
6 NC
7 A1 FIN(GND)
8 GND
9 H1+
10 H1-
11 H2+
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 2 Pin Name NC A3 NC A2 NC NC A1 GND H1+ H1H2+ H2H3+ H3VH NC PC1 SB FG3X DIR ECR EC S/S FG1...
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