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L99DZ80EP датащи(PDF) 36 Page - STMicroelectronics

номер детали L99DZ80EP
подробное описание детали  Automotive door actuator driver
PDF  68 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99DZ80EP датащи(HTML) 36 Page - STMicroelectronics

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Application information
L99DZ80EP
36/68
DocID18260 Rev 6
Figure 13. Overcurrent recovery mode
3.15
H-bridge control (DIR, PWMH, bits SD, SDS)
The PWMH input controls the drivers of the external H-bridge transistors. The motor
direction can be chosen with the direction input (DIR), the duty cycle and frequency with the
PWMH input. With the SPI-registers SD and SDS four different slow-decay modes (via
drivers and via diode) can be selected using the high side or the low side transistors.
Unconnected inputs are defined by internal pull-down current.
Table 25. H-bridge control truth table
N°
Control pins Control bits
Failure bits
Output pin
Comment
DIR PWMH HEN SD SDS CP_LOW OV UV DS TSD GH1 GL1 GH2 GL2
1
X
X
0
X
X
X
X
X
X
X
RL
RL
RL
RL H-bridge disabled
2
X
X
1
X
X
1
0
0
0
0
RL
RL
RL
RL Charge pump voltage too low
3
X
X
1
X
X
0
XXX
1
RLRLRLRL Thermo-shutdown
4
X
X
1
X
X
0
1
0
0
0L
LLL
Overvoltage
5
X
X
1
X
X
0
001
0
L(1) L(1) L(1) L(1) Short-circuit(1)
6
0
1
1
X
X
0
0
0
0
0
L
H
H
L
Bridge H2/L1 on
7
X
0
100
0
0
0
0
0
L
H
L
H
Slow-decay mode LS1 and LS2
on
8
0
0
1
0
1
0
0
0
0
0
L
H
L
L
Slow-decay mode LS1 on
9
1
0
1
0
1
0
0
0
0
0
L
L
L
H
Slow-decay mode LS2 on



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