L6235 STMicroelectronics, L6235 Datasheet - Page 17

• Manufacturer Part Number: L6235
• Description: DMOS DRIVER FOR THREE-PHASE BRUSHLESS DC MOTOR
• Manufacturer: STMicroelectronics

Figure 18. Overcurrent Protection Waveforms
Figure 19. t
Figure 20. t
DISABLE
DELAY
versus C
versus C
V
EN
BRIDGE
V
I
V
=V
SOVER
OCD
th(OFF)
th(ON)
I
OFF
OFF
V
DIAG
ON
ON
OUT
DD
EN
EN
.
t
OCD(ON)
1 1 0
1 1 0
and R
1 0 0
1 0 0
3
3
1 0
1 0
0.1
1
1
10
1
1
1
1
t
EN(FALL)
EN
t
DELAY
.
t
D(OFF)EN
R
R
E N
E N
= 2 2 0 k
= 2 2 0 k
C
C
E N
E N
t
Cen [nF]
OCD(OFF)
1 0
1 0
10
[ n F ]
[ n F ]
R
R
V
E N
E N
EN(LOW)
t
t
DISABLE
EN(RISE)
= 1 0 0 k
= 1 0 0 k
100
1 0 0
1 0 0
t
R
R
R
R
R
R
D(ON)EN
E N
E N
E N
E N
E N
E N
= 4 7 k
= 4 7 k
= 3 3 k
= 3 3 k
= 1 0 k
= 1 0 k
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L6235
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