Bi-Directional DC Motor Driver
www.fairchildsemi.com
KA3084D
2-Phase BLDC Motor Driver
Features
• Drives the BLDC motor using 2 hall sensors. • 2-pha...
Description
www.fairchildsemi.com
KA3084D
2-Phase BLDC Motor Driver
Features
Drives the BLDC motor using 2 hall sensors. 2-phase, full-wave drive method Built-in thermal shutdown (TSD) circuit Controls the motor speed through voltage Built-in bandgap circuit Built-in frequency Generator (FG) & Phase Generator (PG) amplifier & comparator.
Description
The KA3084D is a monolithic integrated circuit, and it is suitable for drum motor driver of VCR system.
22-SOP-300
Target Applications
Video cassette recorder(VCR) cylinder (drum) motor Other 2-phase BLDC motor
Ordering Information
Device KA3084D Package 22-SOP-300 Operating Temp. −25°C ~ +75°C −25°C ~ +75°C
KA3084DTF 22-SOP-300
Rev. 1.0.1 February. 2000.
©2000 Fairchild Semiconductor International
1
KA3084D
Pin Assignments
FGAMPOUT PGAMPOUT
FGOUT
PGOUT
VERG
PGIN
FGIN
VCTL
H2N
22
21
20
V25
19
18
17
16
15
14
13
12
KA3084D
1 GND(Signal)
2 VCC2
3 OUT2P
4 GND2(Power)
5 OUT2N
6 OUT1P
7 GND1(Power)
8 OUT1N
9 VCC1
10 H1P
11 H1N
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 Pin Name GND (Signal) VCC2 OUT2P GND2 (Power) OUT2N OUT1P GND1 (Power) OUT1N VCC1 H1P H1N H2P H2N VCTL PGOUT PGAMPOUT PGIN VREG FGIN V25 FGAMPOUT FGOUT I/O O O O O I I I I I O O I O I I/O O O Pin Function Description Ground (Signal) Power supply 2 Output drive 2(P) Power ground 2 Output drive 2(N) Power supply 1(P) Power ground 1 Output drive 1(N) Power supply 1 Hall signal input 1P H...
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