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TB6560HQ Datasheet(PDF) 14 Page - Toshiba Semiconductor

Part No. TB6560HQ
Description  PWM Chopper-Type bipolar Stepping Motor Driver IC
Download  31 Pages
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Manufacturer  TOSHIBA [Toshiba Semiconductor]
Direct Link  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TB6560HQ Datasheet(HTML) 14 Page - Toshiba Semiconductor

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TB6560HQ/FG
2006-05-31
14
1.
Current Waveform and Settings of Mixed Decay Mode
You can configure the points of the current’s shaped width (current’s pulsating flow) using 1-bit input in
Decay mode for constant-current control.
“NF” refers to the point at which the output current reaches its setting current value and “RNF” refers to
the monitoring timing of the setting current.
The smaller the MDT value, the smaller the current ripple (current wave peak), and the current’s decay
capability will fall.
NF
Normal
Mode
RNF
Setting Current Value
OSC Pin
Internal
Waveform
fchop
NF
25%
Decay
Mode
RNF
MDT
Setting Current Value
NF
50%
Decay
Mode
RNF
MDT
Setting Current Value
NF
100%
Decay
Mode
RNF
Setting Current Value
Charge mode
NF: Setting current value reached Slow mode
Current monitoring (When setting current value > Output
current) Charge mode
Charge mode
NF: Setting current value reached Slow
mode
Mixed decay timing Fast mode Current monitoring
(When setting current value > Output current) Charge mode
Charge mode
NF: Setting current value reached Slow
mode
Mixed decay timing Fast mode Current monitoring
(When setting current value > Output current) Charge mode
Charge mode
NF: Setting current value reached Fast mode
Current monitoring (When setting current value > Output
current) Charge mode


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