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TA8493F Datasheet(PDF) 3 Page - Toshiba Semiconductor

Part # TA8493F
Description  3-PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER IC FOR CD-ROM DRIVES
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Manufacturer  TOSHIBA [Toshiba Semiconductor]
Direct Link  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TA8493F Datasheet(HTML) 3 Page - Toshiba Semiconductor

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TA8493F/AF/BF
2002-01-31
3
PIN Assignment
Terminal
No.
Terminal
Symbol
Function
Remarks
1
Lb (G)
b-phase upper side power transistor (base)
output terminal
Keep open.
2
La (G)
a-phase upper side power transistor (base)
output terminal
Keep open.
3
La
a-phase output terminal
Connect to the coil.
4
VM2
Supply voltage terminal for motor drive
Connect to VM1 externally.
5
SB
RUN/STOP control terminal
H: RUN, L: STOP
6
RF1
Output current detection terminal
Sets limiter current value.
Connect to RF2 externally and between this
terminal and GND.
7
GND2
GND
¾
8
CRF
Output current filter terminal
Connect a capacitor between this terminal
and GND.
9
N.C.
10
FGO
FG amplifier output terminal
Outputs a signal whose frequency is
determined by the CD rotation frequency.
11
BRK
Brake mode select terminal
Output mode when VC > Vref
12
Hb
-
b-phase negative hall signal input terminal
Connect to hall element output terminal.
13
Hb
+
b-phase positive hall signal input terminal
Connect to hall element output terminal.
14
Ha
-
a-phase negative hall signal input terminal
Connect to hall element output terminal.
15
Ha
+
a-phase positive hall signal input terminal
Connect to hall element output terminal.
16
Hc
+
c-phase positive hall signal input terminal
Connect to hall element output terminal.
17
Hc
-
a-phase negative hall signal input terminal
Connect to hall element output terminal.
18
HB
Hall element bias terminal
Open collector output. Connect to the
negative side of hall element bias line.
19
Cd
Forward/reverse changeover gain
adjustment terminal
Adjust a rotation direction changeover gain
20
VCC
Supply voltage terminal for control circuits
VCC (opr) = 4.5 to 5.5 V
21
VC
Control amplifier input terminal
Use the control signal as input.
22
Vref
Control amplifier reference voltage input
terminal
Use the reference voltage for the control
amplifier as input.
23
OSC
Triangular wave oscillation terminal
Connect a capacitor between this terminal
and GND.
24
GND1
GND
¾
25
RF2
Output current detection terminal
Sets limiter current value.
Connect to RF1 externally and between this
terminal and GND.
26
MS
Mode select terminal
Determines output mode.
27
Lc (G)
c-phase upper side power transistor (base)
output terminal
Keep open.
28
Lc
c-phase output terminal
Connect to the coil.
29
VM1
Supply voltage terminal for motor drive
Connect to VM2 externally.
30
Lb
b-phase output terminal
Connect to the coil.


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