l99dz80ep STMicroelectronics, l99dz80ep Datasheet - Page 36

• Manufacturer Part Number: l99dz80ep
• Description: Door Actuator Driver
• Manufacturer: STMicroelectronics

Application information
3.15
Table 25.
36/68
N°
1
2
3
4
5
6
7
8
9
Control pins Control bits
DIR PWMH HEN SD SDS CP_LOW OV UV DS TSD GH1 GL1 GH2 GL2
X
X
X
X
X
X
0
0
1
X
X
X
X
X
1
0
0
0
Figure 13. Overcurrent recovery mode
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.
H-bridge control truth table
0
1
1
1
1
1
1
1
1
X
X
X
X
X
X
0
0
0
X
X
X
X
X
X
0
1
1
X
1
0
0
0
0
0
0
0
Failure bits
X
X
0
1
0
0
0
0
0
Doc ID 18260 Rev 4
X
X
0
0
0
0
0
0
0
X
X
0
0
1
0
0
0
0
X
0
1
0
0
0
0
0
0
L
RL
RL
RL
L
L
L
L
L
(1)
Output pin
L
RL
RL
RL
H
H
H
L
L
(1)
L
RL
RL
RL
H
L
L
L
L
(1)
L
RL H-bridge disabled
RL Charge pump voltage too low
RL Thermo-shutdown
H
H Slow-decay mode LS2 on
L
L
L
(1)
Overvoltage
Short-circuit
Bridge H2/L1 on
Slow-decay mode LS1 and LS2
on
Slow-decay mode LS1 on
Comment
(1)
L99DZ80EP