l99mc6tr-lf STMicroelectronics, l99mc6tr-lf Datasheet - Page 41

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

L99MC6
Table 45.
Hereafter the actions linked to each value of bit or group of bits:
●
●
●
●
Figure 15. Open-load in bridge mode drawing
There are two operating conditions:
●
●
DISCP
DISCP = 0: Charge pump stays activated
CH4[2:0] = 000b: Channel 4 is off, open-load detection in off-state disabled
BRIDGE_1&4 = 1: Bridge mode for channel 1 and channel 4 activated
CH1[2:0] = 010b: Channel 1 is on, PWM disabled, overcurrent recovery mode
disabled, low slew rate
Case 1: The motor is connected, drain of channel 5 is pulled up by channel 1 (on)
through the motor, then no open-load detected on channel 5
Case 2: The motor is not connected and the drain voltage of channel 5 is below the
open-load threshold, then open-load detected on channel 5
0
CH1 ON
OL detection OFF
CH4 OFF
OL detection OFF
Data byte description 2 - example 3
CH4
[2]
0
CH4
[1]
0
Doc ID 16523 Rev 1
CH4
[0]
0
M
Vs
Bridge
1&4
1
SPI control and status register
CH1
[2]
0
CH2 OFF
OL detection OFF
CH5 OFF
OL detection ON
CH1
[1]
1
CH1
[0]
0
41/55