ZHCSLQ8A December 2021 – June 2022 TMAG5328
PRODUCTION DATA
One way to setup the BOP is to connect a resistor to the "ADJ" pin. The device generates a fixed current that is injected in the external resistor. This will generate a voltage that represents the BOP value. The relationship between BOP and resistance is defined as BOP(mT) = RADJ(kΩ). Please note that the generated current on the "ADJ" pin is only present when the device is in active mode and it is turned OFF when in sleep mode. As a result, the voltage on the "ADJ" pin is only present when the device is in active mode, which is a small duration compared to the time the device is in sleep mode.
The device BOP must be set to any value between 2 mT and 15 mT. This means RADJ must be set between 2 kΩ and 15 kΩ. Operating above and beyond those limits is not recommended and could result in either getting the wrong threshold set or locking up the device into a specific state without the possibility of exiting.
Figure 7-6 shows the relationship between BOP and RADJ.