TA8490(2001) 查看數據表（PDF） - Toshiba
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TA8490 Datasheet PDF : 22 Pages
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TA8490F
PIN ASSIGNMENT
TERMINAL
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
TERMINAL
SYMBOL
Lb (B)
La (B)
La
VM2
CP
GND2
OSC
SWC
SB
FGO
BRK
Hb−
Hb+
Ha−
Ha+
Hc+
Hc−
HB
CT
VCC
FUNCTION
REMARKS
b−phase upper side power transistor (base) output
terminal
Keep open.
a−phase upper side power transistor (base) output
terminal
Keep open.
a−phase output terminal
Connect to the coil.
Supply voltage terminal for motor drive
Switching power source system phase
compensator terminal
Connect to VM1 externally.
Connect a capacitor between this terminal and
GND.
GND
―
Triangular wave oscillation terminal
Connect a capacitor between this terminal and
GND.
Switching regulator control signal output terminal
Connect to the base of the switching external
transistor.
RUN / STOP control terminal
H: RUN, L: STOP
FG amplifier output terminal
Outputs a signal whose frequency is determined
by the CD rotation frequency.
Brake mode select terminal
b−phase negative hall signal input terminal
Output mode when VC > Vref
Connect to hall element output terminal.
b−phase positive hall signal input terminal
Connect to hall element output terminal.
a−phase negative hall signal input terminal
Connect to hall element output terminal.
a−phase positive hall signal input terminal
Connect to hall element output terminal.
c−phase positive hall signal input terminal
Connect to hall element output terminal.
a−phase negative hall signal input terminal
Connect to hall element output terminal.
Hall element bias terminal
Open collector output. Connect to the negative
side of hall element bias line.
Control system phase compensator terminal
Connect a capacitor between this terminal and
GND.
Supply voltage terminal for control circuits
VCC (opr) = 4.5~5.5 V
3
2001-06-13
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