tb62201afg TOSHIBA Semiconductor CORPORATION, tb62201afg Datasheet - Page 50
tb62201afg
Manufacturer Part Number
tb62201afg
Description
Dual-stepping Motor Driver Ic For Oa Equipment Using Pwm Chopper Type
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TB62201AFG.pdf
(89 pages)
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22. Mixed Decay Timing
V
SGND
DD
With V
DECAY TIMING TABLE.
Then change the SETUP pin from H to L. With load L, perform chopping and monitor the output current
waveform at that time. Confirm that the switching timing from Slow Decay Mode to Fast Decay Mode
within an fchop cycle is the specified MIXED DECAY TIMING.
(Depending on the load L value and the test environment, chopping may be performed every two cycles or
there may be no Slow Decay Mode. If so, conditions, for example, load condition, may need to be changed.
Output current value
(set current value)
When overwriting the
mixed decay timing
table, set to 5 V.
When the motors are
operating, set to
GND level.
M
5 V
0 V
5 V
0 V
5 V
0 V
= 24 V, V
At measuring, non-reset
RESET
DD
= 5 [V]
= 5 V, RESET = H, change the SETUP pin from L to H and overwrite the MIXED
SGND
0%
(A/B unit only. C/D unit conforms to A/B unit.)
Charge
27
31
30
29
28
8
6
SETUP
CR
V
STROBE AB
CLK AB
DATA AB
RESET
DD
Slow
P-GND
MDT
50
Fast
MDT
100% 0%
V
R
R
Ccp C
Ccp B
Ccp A
ref AB
V
V
(F
RS A
RS B
V
M A
M B
IN
SS
A
B
A
B
Current waveform
)
36
34
32
35
13
12
9
2
5
3
1
7
Charge
SGND
Ccp 2
Ccp 1
R
R
RS A
RS B
Slow
MDT
: PGND
: SGND (V
TB62201AFG
MDT
SGND
Fast
2005-04-04
SS
)
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