參數(shù)資料
型號: E-L9935013TR
廠商: STMICROELECTRONICS
元件分類: 運(yùn)動控制電子
英文描述: STEPPER MOTOR CONTROLLER, 2.5 A, PDSO20
封裝: ROHS COMPLIANT, POWER, MO-166, SOP-20
文件頁數(shù): 18/29頁
文件大?。?/td> 311K
代理商: E-L9935013TR
L9935
Functional description
5.17
Electromagnetic Emission classification (EME)
Electromagnetic Emission classes presented below are typical data found on bench test.
For detailed test description please refer to ’Electromagnetic Emission (EME) Measurement
of Integrated Circuits, DC to 1GHz’ of VDE/ZVEI work group 767.13 and VDE/ZVEI work
group 767.14 or IEC project number 47A 1967Ed. This data is targeted to board designers
to allow an estimation of emission filtering effort required in application.
Electromagnetic Emission is not tested in production.
Figure 13.
State diagram
Remark:
Return to stand by is possible from every state
Note:
Reversing polarity in low current mode no flyback check will be performed.
Pin
EME class
Remark
GND
E
10
0
1
test
VCC
E
e
Blocked with 100nF close in to the device
EN. SDI, CSN, CSK, SDO in
tristate
K
h
SDO
G
f
SDO in low-Z state, no data transfer
Power output A1, A2, B1, B2
E
5
f
Sourcing output
Power output A1, A2, B1, B2
6
f
Sinking output in chopping mode
fosc = 20kHz
STAND
BY
OFF
ON
11
ON
01
DEVICE ON
CHECKS FOR
ERRORS 11
CHECKING
FOR ERRORS
01
CHECKING
FOR ERRORS
10
LOGIC
SELECTS
BRANCHE
DEPENDING
ON PREVIOUS
STATE
ON
CHECKING
FLYBACK 6
turn on
new telegram
no error
new telegram
new
telegram
new
telegram
new telegram current = 0
new
telegram
missing
flyback
different polarity
short
to gnd
short to VS
no short
same polarity as before
short to VS
short
to gnd
shor
t
to
gnd
short
to VS
shor
t
to
VS
shor
t to
gnd
short
to VS
shor
t to
gnd
new telegram
same polarity
flyback OK
or reverse polarity
than before
D99AT441
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