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L8229 Fiches technique(PDF) 20 Page - STMicroelectronics

No de pièce L8229
Description  Dual DMOS full bridge stepper/DC motor driver
PDF  42 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L8229 Fiches technique(HTML) 20 Page - STMicroelectronics

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Obsolete
Product(s)
- Obsolete
Product(s)
L6219_8 mode
L8229
20/42
Figure 6.
L6219_8 mode Stepping Driving
Figure 7.
L6219_8 mode Fast and Slow Decay current paths
STB
I01
I11
I12
PHASE1
PHASE2
Bridge1
Bridge2
RC
Toff
VREFDEC
VS
HA
HB
VS
LA
LB
Ton Current
Toff Fast Decay
Current
Toff Slow Decay
Current
T1
T4
T5
T2 T3
L6219_8 Mode
T1, T3 and T5 are
dead times
to ensure no cross
conduction
Slow
Decay
Fast
Decay
OUTA
OUTB
Vcc
0.33Vcc
Toff= 1.1RC inclusive of
Tdeadtime T1 and T3
0.94Vcc
SLOW DECAY
MIXED DECAY
FAST DECAY
RC
Toff
VREFDEC
VS
HA
HB
VS
LA
LB
Ton Current
Toff Fast Decay
Current
Toff Slow Decay
Current
T1
T4
T5
T2 T3
L6219_8 Mode
T1, T3 and T5 are
dead times
to ensure no cross
conduction
Slow
Decay
Fast
Decay
OUTA
OUTB
Vcc
0.33Vcc
Toff= 1.1RC inclusive of
Tdeadtime T1 and T3
0.94Vcc
SLOW DECAY
MIXED DECAY
FAST DECAY



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