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TB6560HQ Datasheet(PDF) 7 Page - Toshiba Semiconductor

Part No. TB6560HQ
Description  PWM Chopper-Type bipolar Stepping Motor Driver IC
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Manufacturer  TOSHIBA [Toshiba Semiconductor]
Direct Link  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TB6560HQ Datasheet(HTML) 7 Page - Toshiba Semiconductor

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TB6560HQ/FG
2006-05-31
7
Description of Functions
1.
Excitation Settings
You can use the M1 and M2 pin settings to configure four different excitation settings. (The default is
2-phase excitation using the internal pull-down.)
Input
M2
M1
Mode
(Excitation)
L
L
2-phase
L
H
1-2-phase
H
L
W1-2-phase
H
H
2W1-2-phase
2.
Function
When the ENABLE signal goes Low level, it sets an OFF on the output. The output changes to the Initial
mode shown in the table below when the RESET signal goes Low level. In this mode, the status of the
CLK and CW/CCW pins are irrelevant.
Input
CLK
CW/CCW
RESET
ENABLE
Output Mode
L
H
H
CW
H
H
H
CCW
X
X
L
H
Initial mode
X
X
X
L
Z
X: Don’t care
3.
Initial Mode
When RESET is used, the phase currents are as follows. In this instance, the MO pin is L (connected to
open drain).
Excitation Mode
A Phase Current
B Phase Current
2-phase
100%
100%
1-2-phase
100%
0%
W1-2-phase
100%
0%
2W1-2-phase
100%
0%
4.
Current Decay Settings
Output is generated by four PWM blasts; 25% decay is created by inducing decay during the last blast in
Fast mode; 50% decay is created by inducing decay during the last two blasts in Fast mode; and 100%
decay is created by inducing all four blasts in Fast mode.
If there is no input with the pull-down resistor connection then the setting is Normal.
Dcy2
Dcy1
Current Decay Setting
L
L
Normal 0%
L
H
25% Decay
H
L
50% Decay
H
H
100% Decay


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