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PDF KA3084D Data sheet ( Hoja de datos )
| Número de pieza | KA3084D | |
| Descripción | Bi-Directional DC Motor Driver | |
| Fabricantes | Fairchild | |
| Logotipo |  |
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KA3084D
2-Phase BLDC Motor Driver
www.fairchildsemi.com
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
Package
KA3084D 22-SOP-300
KA3084DTF 22-SOP-300
Operating Temp.
−25°C ~ +75°C
−25°C ~ +75°C
©2000 Fairchild Semiconductor International
1
Rev. 1.0.1
February. 2000.
1 page  
KA3084D
Equivalent Circuits (Continued)
Description
PG, FG
amplifier
Pin No.
16, 17
19, 21
VREG
VCC
50
17
19
1k
Internal circuit
V25
VCC
50
16
21
PG, FG
hysteresis
amplifier
3, 5, 6, 8
VREG
VCC
50
16
21
VREG
V25
VCC
10K
50
15
22
5
5 Page 
KA3084D
Typical Performance Characteristics
5.0
4.0
3.0
2.0
1.0 VCTL = 0V
0.0
0 2 4 6 8 10 12 14 16 18 20
VCC(V)
1.VCC vs VREG
5
4
3
2
VCTL = 0V
1 VCC = 12V
0
-30-20-10 0 10 20 30 40 50 60 70 80 90
TTemempepreartaurtue(re°C(℃) )
2.Temp. vs VREG
12
10
8
6
4
2
0
8
VCVTCLTL==33.5.V5V
RLRL= =101K0ΩKΩ
10 12 14 16 18
VCC(V)
3.VCC vs ICC
0.63
0.58
0.53
0.48
0.43
0.38
8
V CTL = 3.5V
10 12 14 16
V CC(V)
4.VCC vs GM1
18
900
850
800
750
700
650
600
550
500
8
VVCCTTLL==33.5.5VV
RRLL==101K0KΩΩ
10 12 14 16 18
V CC (V)
5.VCC vs IOA
900
850
800
750
700
650
600
550
500
8
VVCCTTLL == 33..55VV
RRLL==1100KKΩΩ
10 12 14
V CC (V)
16
6.VCC vs IOB
18
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet KA3084D.PDF ] | |
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