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TB6560HQ Datasheet(HTML) 8 Page - Toshiba Semiconductor

Part No. TB6560HQ
Description  PWM Chopper-Type bipolar Stepping Motor Driver IC
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Maker  TOSHIBA [Toshiba Semiconductor]
Homepage  http://www.semicon.toshiba.co.jp/eng
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TB6560HQ Datasheet(HTML) 8 Page - Toshiba Semiconductor

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TB6560HQ/FG
2006-05-31
8
5.
Torque Settings (Current Value)
The current ratio used in actual operations is determined in regard to the current setting due to resistance.
Configure this for extremely low torque scenarios such as when Weak Excitation mode is stopped.
If there is no input with the pull-down resistor connection then the setting is 100% torque.
TQ2
TQ1
Current Ratio
L
L
100%
L
H
75%
H
L
50%
H
H
20%
(weak excitation)
6.
Protect and MO (Output Pins)
You can configure settings from the receiving side by using an open-drain connection for the output pins
and making the pull-up voltage variable.
When a given pin is in its designated state it will go ON and output at Low level.
Pin State
Protect
MO
Low
Overheat protection operation
Initial state
Z
Normal operation
Other than initial state
7.
OSC
Output chopping waves are generated by connecting the condenser and having the CR oscillate.
The values are as shown below (roughly:
± 30% margin of error).
Condenser
Oscillating Frequency
1000 pF
44 kHz
330 pF
130 kHz
100 pF
400 kHz
Open-drain connection


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