전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

Preview PDF HTML

L9942 데이터시트(PDF) 17 Page - STMicroelectronics

부품명 L9942
상세설명  Integrated stepper motor driver for bipolar stepper motors with microstepping and programmable current profile
PDF  37 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9942 데이터시트(HTML) 17 Page - STMicroelectronics

Back Button L9942 Datasheet HTML 13Page - STMicroelectronics L9942 Datasheet HTML 14Page - STMicroelectronics L9942 Datasheet HTML 15Page - STMicroelectronics L9942 Datasheet HTML 16Page - STMicroelectronics L9942 Datasheet HTML 17Page - STMicroelectronics L9942 Datasheet HTML 18Page - STMicroelectronics L9942 Datasheet HTML 19Page - STMicroelectronics L9942 Datasheet HTML 20Page - STMicroelectronics L9942 Datasheet HTML 21Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 17 / 37 page
background image
L9942
3 Electrical specifications
17/37
Figure 7.
Logic to Set Load Current Limit
3.4.7
PWM Control
VS = 7 to 20 V, VCC = 3.0 to 5.3 V, EN=VCC, Tj = -40 to 150 °C, IREF = -200 µA, unless
otherwise specified. The voltages are referred to GND and currents are assumed positive,
when the current flows into the pin.
Table 13.
PWM Control (see
Figure 4 and Figure 7)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
fPWM
1
Frequency of PWM cycles
Bit: FRE= 1
20.8
kHz
Bit: FRE= 0
31.3
kHz
TMD
1
Mixed decay switch off delay time
Bits: DM1 DM0= 0 1
4
us
Bits: DM1 DM0= 1 0
8
us
TFT
1
Glitch filter delay time
Bit: FILTER= 0
1.5
us
Bit: FILTER= 1
2.5
us
Register 0
UP/Down
STEP
I4
I3
I2
I1
I0
Count by
1,2,4,8
A0
A1
A2
A3
MUX
A0
A1
A2
0
0
0
0 1 23 01 2 3 0 1 2 3
Current-Profile Table
stored in register2, ...6
A3=0
Adr
A[3..0]
Phase A
Profile 8
Address Calculation
I4
I3
I2
I1
I0
Profile 7
I4
I3
I2
I1
I0
Profile 6
I4
I3
I2
I1
I0
Profile 5
I4
I3
I2
I1
I0
Profile 4
I4
I3
I2
I1
I0
Profile 3
I4
I3
I2
I1
I0
Profile 2
I4
I3
I2
I1
I0
Profile 1
I4
I3
I2
I1
I0
Profile 0
5
5
5
5
5
5
5
5
5
A3=1
Adr
neg(A[3..0])
A3=0
Adr
neg(A[3..0])
Phase B
A3=1
Adr A[3..0]
Register 1
9
5
DIR
P0
P1
P2
P3
P4
PhaseCounter
StepMode
SR0
SR1
ST1 ST0
Slew Rate
DM2
DM1
DM0
MUX
MUX
I0
I1
I2
I3
I4
I0
I1
I2
I3
I4
DAC Phase B
DAC Phase A
Decay Mode
5 bit DAC
Phase A
5 bit DAC
Phase B
DC0
DC1
DC2
DAC Scale
DAC
Full Scale
REF
REF
I
MAX
I
LIMIT B
LIMIT A
I
DI
QB1
QB2
QA1
QA2
Qx1LIM
I
Qx2LIM
I
QA1LIM
I
1000
QB2LIM
I
1000
QB1LIM
I
1000
QA2LIM
I
1000



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37


데이터시트 다운로드

Go To PDF Page


링크 URL



ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크 투 데이터시트    |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com