參數(shù)資料
型號: TB62201AFG
廠商: Toshiba Corporation
英文描述: Dual-Stepping Motor Driver IC for OA Equipment Using PWM Chopper Type
中文描述: 雙辦公自動化設(shè)備步進(jìn)馬達(dá)驅(qū)動IC用PWM斬波型
文件頁數(shù): 31/89頁
文件大?。?/td> 1423K
代理商: TB62201AFG
TB62201AFG
2005-04-04
31
4. IM3 (A/B unit only. C/D unit conforms to A/B unit.)
This is the IM current when all of the circuits, including the output transistors, in the IC are operating.
The IM current includes the current dissipation in the charge pump circuit, output gate loss, and output
predriver.
Because the IM current (IM3) is input from the RS pin, which is also used for the output current, IM3
cannot be measured by the normal testing methods.
Use the method shown below.
Setup Data
The serial data PHASE signal (both A and B) switch over to high or low.
Test Method
Set output to open, change phase data from 1
0
1
0 and perform switching. When testing, input
phase data at double the chopping frequency (if f
chop
= 100 kHz, fDATA = 200 kHz) and measure the
current value of V
M
supply.
fDATA = 200 kHz means that the phase switches at 200 kHz.
5
R
o
=
0
μ
F
Ccp 1
0
μ
F
CR AB
V
ref
AB
8
9
5
B
2
B
35
A
32
A
34
R
RS A
36
V
M A
DATA AB
29
CLK AB
30
STROBE AB
31
V
DD
27
3
R
RS B
1
V
M B
V
SS
(F
IN
)
13
Ccp C
12
Ccp B
7
Ccp A
RESET
28
P-GND
6
SETUP
SGND
3
2
: PGND
: SGND (V
SS
)
Ccp 2
SGND
SGND
V
DD
SGND
5
C
o
=
No reset at testing
RESET
=
5 [V]
5 V
0 V
5 V
0 V
5 V
0 V
A IM
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
DATA
CLK
STROBE
H
L
H
L
H
L
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