THM3561 Datasheet, PDF (7/21 Pages) THine Electronics, Inc. – Stepping Motor Driver with LVDS Interface

THM3561_Rev1.01_E
Electrical Characteristics (continued)
Symbol
fOSC
tDOUT
Parameter
Internal oscillator frequency
Driver output delay time
OFF→ON
Table 8. AC Specifications
Vcc=12V, Ta=25deg. unless otherwise specified.
Conditions
Min.
Typ.
Max.
Unit
ROSC = 47kohm
1.2
1.6
2
MHz
Phase input mode
-
3.6
-
us
Clock input mode
-
4.2
-
us
Driver output delay time
Phase input mode
-
tDOUT
ON→OFF
Clock input mode
-
12V, 700mA, Resistance load
tROUT Driver output rise time
-
0% → 100% (*4)
12V, 700mA, Resistance load
tFOUT Driver output fall time
-
100% → 0% (*4)
tOCP
OCP recovery time
-
-
3
-
us
3.6
-
us
125
-
ns
140
-
ns
1.28
-
ms
(*4) Driver output ON resistance x 700mA=0%, 12V=100%
Driver Output Timing
The setting is reflected to the driver output by the internal oscillator after write to register.
In the case of phase input mode, output is switched to the following post of time after write to register:
OFF→ON: about 3.6us (Typ.)
ON→OFF: about 3.0us (Typ.)
In the case of clock input mode, output is switched to the following post of time after write to register:
OFF→ON: about 4.2us (Typ.)
ON→OFF: about 3.6us (Typ.)
In the case of performing settings by which OFF→ON and ON→OFF are generated simultaneously at different
output pins (for example, at the time of change-over of output at OUTA0 pin and OUTA1 pin of 2-phase excitation
etc.), the delay difference of 2 outputs becomes dead time (this is when both terminals are turned OFF).
Register write timing (The standard is the rise of CSn of only the final Byte for 4-wire CMOS setting.)
SCK / SCL_IN
SI / SDA_IN
BIT7
BIT2
BIT1
BIT0
OUT**
OFF
OFF→ON
OUT**
ON
ON→OFF
**: It’s either A0, A1, B0 and B1.
tDOUT(ON)
tFOUT
ON
tDOUT(OFF) tROUT
OFF
Figure 5. Output Driver Timing
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