參數(shù)資料
型號: TB62201AF
元件分類: 運(yùn)動控制電子
英文描述: STEPPER MOTOR CONTROLLER, 1.5 A, PDSO38
封裝: 0.450 INCH, 0.65 MM PITCH, HEAT SINK, PLASTIC, SOP-36/38
文件頁數(shù): 25/89頁
文件大小: 1396K
代理商: TB62201AF
TB62201AF
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 fchop = 100 kHz, fDATA = 200 kHz) and measure the
current value of VM supply.
fDATA = 200 kHz means that the phase switches at 200 kHz.
5V
R
osc
AB
=
3.6
k
0.22
F
Ccp 1
0.01
F
CR AB
Vref AB
8
9
5
B
2
B
35
A
32
A
34
RRS A
36
VM A
DATA AB
29
CLK AB
30
STROBE AB
31
VDD
27
3
RRS B
1
VM B
VSS
(FIN)
13
Ccp C
12
Ccp B
7
Ccp A
RESET
28
P-GND
6
SETUP
SGND
3V
24
V
: PGND
: SGND (VSS)
Ccp 2
SGND
VDD
SGND
5V
C
osc
AB
=
560
pF
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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