Datasheet

L99MC6 SPI control and status register
Doc ID 16523 Rev 2 41/32
Hereafter the actions linked to each value of bit or group of bits:
● 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
Figure 15. Open-load in bridge mode drawing
There are two operating conditions:
● 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
Table 45. Data byte description 2 - example 3
DISCP
CH4
[2]
CH4
[1]
CH4
[0]
Bridge
1&4
CH1
[2]
CH1
[1]
CH1
[0]
00001010
M
Vs
CH4 OFF
OL detection OFF
CH1 ON
OL detection OFF
CH2 OFF
OL detection OFF
CH5 OFF
OL detection ON