l99mc6tr-lf STMicroelectronics, l99mc6tr-lf Datasheet - Page 36

• Manufacturer Part Number: l99mc6tr-lf
• Description: Configurable 6-channel Device
• Manufacturer: STMicroelectronics

SPI control and status register
9.3.1
Table 29.
1. The state of the channel 2 is according to the IN/PWM signal
2. The output state is according to the IN/PWM signal, note that bridge mode and PWM mode may not be activated at the
9.3.2
Table 30.
1. Every output stage is protected against overtemperature and overcurrent. While still configured as ON, the output stage
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same time for channels 2 and 5.
can be deactivated by the corresponding error bits in the status registers. In order to reactivate the drivers, the status
registers have to be cleared by a specific SPI command.
CHx
OC [6:1]
TWARN
OL [6:1]
[2]
DISCP
Bridge
ENCP
0
1
0
0
0
1
1
Name
CHx
[2:0]
TSD
EN
Channel configuration decoding
Channel configuration decoding
Register description
Register description
CHx
[1]
Global device enable bit. If this bit is reset, the device goes in standby mode.
Channel output configuration (see
Note that channel 2 is directly driven by the external IN/PWM pin and thus can not be configured
independently from the PWM configuration of other channels.
Activate Bridge mode between channels 3 and 6, channels 2 and 5, channels 1 and 4. Any
polarity change is delayed by masking time of cross conduction protection
If wrong SPI commands try to turn on the channels 3 and 6, channels 2 and 5, channels 1 and 4
simultaneously, the high-side (channels 3, 2, 1) has the priority whereas channels 6, 5, 4 is (or
stay) deactivated.
This bit is preset to ‘1’ at startup. To deactivate the internal charge pump ENCP has to be reset
together with setting DISCP (CTRL 2). This mechanism avoids unwanted charge pump
deactivation after an undetected communication error.
It is recommended to check the state of the charge pump deactivation bits at every access of
CTRL 1 and CTRL 2.
This bit is reset to ‘0’ at startup. To deactivate the internal charge pump DISCP has to be set
together with resetting ENCP (CTRL 1)
Overtemperature detected: all the drivers are shutdown
Overtemperature warning level detected, information only
Open-load error detected, information only
Overcurrent error detected, drivers are deactivated and re-enabled cyclically when bulb mode is
configured. Note: in order to detect a real overload condition, the application software must make
sure, that the corresponding OC bit remains cleared after a maximum heat up time of the load.
0
1
0
1
1
0
1
CHx
[0]
0
1
1
0
1
1
0
(1)
IN/PWM
IN/PWM
Off
Off
CHx
On
On
On
(1)
(1)
Doc ID 16523 Rev 1
(2)
(2)
Figure
mode
PWM
Yes
Yes
No
No
No
No
No
29).
Comment
Overcurrent
recovery
Yes
No
No
No
No
-
-
Slew Rate
High
High
High
Low
Low
Low
Low
Open-load
detection
Off
On
Off
On
L99MC6
-
-
-