tb62202afg TOSHIBA Semiconductor CORPORATION, tb62202afg Datasheet - Page 41

• Manufacturer Part Number: tb62202afg
• Description: Dual-stepping Motor Driver Ic For Oa Equipment Using Pwm Chopper Type
• Manufacturer: TOSHIBA Semiconductor CORPORATION

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.
15. Current vector
V
SGND
DD
100%
0%
5 V
0 V
5 V
0 V
5 V
0 V
At measuring, non-reset
RESET = 5 [V]
Output current
(A/B unit only. C/D unit conforms to A/B unit.)
SGND
27
31
30
29
28
8
(example)
71%
RESET
CR
V
STROBE AB
CLK AB
DATA AB
P-GND
DD
41
100%
V
R
R
Ccp C
Ccp B
Ccp A
ref AB
V
V
(F
RS A
RS B
V
M A
M B
SS
IN
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
waveform
Monitor
current
: PGND
: SGND (V
TB62202AFG
SGND
2005-04-04
SS
)