www.fairchildsemi.com
FAN8486D (KA3086D)
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.
Descripiton
The FAN8486D is a monolithic integrated circuit, and it is
suitable for drum motor driver of VCR system.
28-SSOP-300SG
Typical Applications
• Video cassette recorder (VCR) cylinder (drum) motor
• Other 2-phase BLDC motor
Ordering Information
Device
FAN8486D
Package
28-SSOP-300SG
Operating Temp.
−25°C
~ +75°C
−25°C
~ +75°C
FAN8486DTF 28-SSOP-300SG
Rev. 1.0.1
February. 2000.
©2000 Fairchild Semiconductor International
FAN8486D (KA3086D)
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
PVCC2
NC
NC
NC
OUT2P
PGND2
OUT2N
OUT1P
PGND1
OUT1N
NC
PVCC1
SVCC
H1P
H1N
H2P
H2N
PGOUT
PGAMPOUT
PGIN
PG(V25)
VREG
FG(V25)
FGIN
FGAMPOUT
FGOUT
VCTL
SGND
I/O
-
-
-
-
O
O
O
O
O
-
-
-
-
I
I
I
I
O
O
I
-
-
-
I
O
O
I
-
-
-
-
Output drive 2(P)
Power ground 2
Output drive 2(N)
Output drive 1(P)
Power ground 1
Output drive 1(N)
-
Power supply voltage1
Signal supply voltage
Hall signal input 1P
Hall signal input 1N
Hall signal input 2P
Hall signal input 2N
Phase generate output
Phase generate amp. output
Phase generate input
Reference voltage for PG
Regulated voltage
Reference voltage for FG
Frequency generate input
Frequency generate amp. output
Frequency generate output
Voltage control(motor speed control)
Signal ground
Pin Function Description
Power supply voltage2
Rev. 1.0.1
February. 2000.
3
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