PANASONIC AN8261

AN8261
Brushless Motor Driver
■ Overview
21.7±0.3
• Operating supply voltage range : VCC= 4.5 to 7V
• 3-phase full-wave drive, external power transistor
• Built-in low-voltage protective circuit
• Built-in thermal protective comparator circuit
• Built-in Hall amplifiers with hysteresis
18
2
17
3
16
4
15
5
14
6
13
7
12
8
11
9
10
2.54
■ Features
1
0.5±0.1
1.2±0.25
Unit : mm
The AN8261 is a 3-phase full-wave brushless motor drive IC
and optimum for driving the air conditioner fan motors, etc.
0.51min.
6.3±0.25
■ Applications
3.8±0.25 (3.45)
Driving the brushless motors such as air conditioner fan
motors, etc.
0.3
3 ~15˚
+ 0.1
5
– 0.2
7.62±0.25
18-pin DIL Plastic Package (DIP018-P-0300D)
■ Block Diagram
VCC
1
2
3
18
7
17
12
Hysteresis Amp.A
8
16
Signal Processing
11
15
9
Hysteresis Amp.B
14
10
13
Hysteresis Amp.C
TSD Hysteresis Control
VREF
VCC
GND 4
6
5
Monitor
Protector
■ Absolute Maximum Ratings (Ta=25˚C)
Symbol
Rating
Supply voltage
Parameter
VCC
7.5
V
Supply current
ICC
I7, I8, I9
I10, I11, I12
80
mA
–7 to + 25
mA
mW
Output drive current
Unit
Power dissipation
PD
800
Operating ambient temperature
Topr
–20 to + 80
˚C
Storage temperature
Tstg
–55 to +150
˚C
■ Recommended Operating Range (Ta=25˚C)
Parameter
Symbol
Range
VCC
4.5V to 7V
Operating supply voltage range
■ Electrical Characteristics (Ta=25˚C)
Parameter
Supply current 1
Symbol
Condition
min
ICC1
VCC=5V
Supply current 2
ICC2
VCC=3.5V
Sensor amp. input voltage L to H
VSLH
VCC=5V
1
Sensor amp. input voltage H to L
VSHL
VCC=5V
–20
FG output voltage low level
VOL
VCC=5V, IPO=5mA
Power drive output voltage high level
VPOH
VCC=5V, IPO=–3mA
3.6
Power drive output current high level
IPOH
VCC=5V, VPO=2V
–8
Power drive output voltage low level 1
VPOL1
Power drive output voltage low level 2
VPOL2
Power drive output voltage low level 3
VPOL3
VCC=5V, IPO=15mA
Sensor amp. input voltage hysteresis width
VSW
VCC=5V
FG output pull-up resistance value
RO
IW=30µA
Protect reset voltage
VR
typ
max
Unit
40
56
mA
47
62
mA
10
20
mV
–10
–1
mV
0.4
V
–4
mA
VCC=5V, IPO=10mA
0.4
V
VCC=5V, IPO=20mA
0.6
V
V
–6
12
20
0.6
V
28
mV
8
10
12
kΩ
3.5
4
4.5
V
V
Temperature protect operating voltage
VT
VCC=5V
1
1.15
1.3
Temperature protect resetting voltage
VTR
VCC=5V
0.5
0.63
0.8
V
TSD bias current
ITSD
VCC=5V, VTSD=0.5V
10
µA
Vref
VCC=5V
2.6
V
0.15
V
Reference voltage
Reference voltage regulation
VrefREGV
VCC=4V→7V
Reference voltage load reguration
VrefREGV
VCC=5V, IO=0mA→10mA
VCC protect hysteresis width
VCCW
2
100
2.3
0.1
V
210
450
mV
Temperature protect operating voltage Vref ratio
VT/Vref
VCC=5V
48.5
50
51.5
%
Temperature protect operating voltage Vref ratio
VR/Vref
VCC=5V
25.3
27.4
29.5
%
■ Application Circuit
470Ω
470Ω
1kΩ
1
VCC
18 HA+
1kΩ
56Ω
470Ω
VCC 5V
1kΩ
VM 30V
UH 7
VH 8
17 HA–
WH 9
16 HB+
15 HB–
50V
+
1µF
–
14 HC+
AN8261
13 HC–
WL 10
2 FG1
3 FG2
6 Vref
VL 11
TSD
5
GND UL 12
4
56Ω
270Ω
270Ω
270Ω
GND
■ Pin Descriptions
Pin No.
Pin name
1
VCC
2
FG1
Description
I/O
DC/waveform
Supply voltage input pin
I
5V
FG signal output pin
O
Equivalent circuit
5V
10kΩ
2
0V
5V
3
FG2
FG signal output pin
10kΩ
O
3
0V
4
GND
GND pin
I
5
TSD
Temperature protect
input signal pin
I
Reference voltage output
pin (TSD reference voltage)
O
6
VREF
0V
1.15V
5
2.3V
6
■ Pin Descriptions (cont.)
Pin No.
Pin name
7
UH
Description
I/O
DC/waveform
Equivalent circuit
VCC
8
VH
9
WH
VCC
6
7
Power driver output pin
10
WL
11
VL
12
UL
13
HC–
14
HC+
15
HB–
16
+
O
8
9
10
11
12
Hall element input pin
I
HB
13
14
15
16
17
18
–
17
HA
18
HA+
■ Logic Diagram
No.
Output
Input
Symbol
Pin No.
1
2
3
4
5
6
HA+
18
H
H
L
L
L
H
HA–
17
L
L
H
H
H
L
+
16
L
H
H
H
L
L
HB
–
15
H
L
L
L
H
H
HC+
14
L
L
L
H
H
H
HC–
13
H
H
H
L
L
L
FG1
2
L
L
H
H
H
L
FG2
3
L
H
L
H
L
H
UH
7
L
L
H
H
L
L
VH
8
L
L
L
L
H
H
WH
9
H
H
L
L
L
L
HB
UL
12
H
L
L
L
L
H
VL
11
L
H
H
L
L
L
WL
10
L
L
L
H
H
L