tb62201afg TOSHIBA Semiconductor CORPORATION, tb62201afg Datasheet - Page 43

• Manufacturer Part Number: tb62201afg
• Description: Dual-stepping Motor Driver Ic For Oa Equipment Using Pwm Chopper Type
• Manufacturer: TOSHIBA Semiconductor CORPORATION

15. Current Vector
V
SGND
DD
Perform chopping in Mixed Decay mode with load L. Monitor the output current waveform and measure
the output current at constant current operation. At this time, vary the 4-bit data for current setting and
measure the current values. Using the set output current as 100%, calculate the output current ratio.
100%
0%
5 V
0 V
5 V
0 V
5 V
0 V
At measuring, non-reset
RESET
Output current
(A/B unit only. C/D unit conforms to A/B unit.)
= 5 [V]
SGND
(example)
71%
27
31
30
29
28
8
CR
V
STROBE AB
CLK AB
DATA AB
RESET
P-GND
DD
SETUP
6
43
100%
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
)
36
34
32
35
13
12
9
2
5
3
1
7
SGND
Ccp 2
Ccp 1
R
R
RS A
RS B
Monitor current
waveform
: PGND
: SGND (V
TB62201AFG
SGND
2005-04-04
SS
)