BQ25713 datasheet(57/111 Pages) TI2

57 / 111 page

8.6.6 IIN_DPM Register (I2C address = 25/24h) [reset = 4100h]

IIN_DPM register reflects the actual input current limit programmed in the register, either from IIN_HOST register

or from ICO.

After ICO, the current limit used by DPM regulation may differ from the IIN_HOST register settings. The actual

DPM limit is reported in IIN_DPM register.

To read the nominal or typical input current limit

• When using a 10-mΩ sense resistor (RSNS_RAC=0b). There is 50-mA offset at code 0. Note this offset is

only applied to code 0, not applied to other codes.

• When using a 5-mΩ sense resistor (RSNS_RAC=1b). There is 100-mA offset at code 0. Note this offset is

only applied to code 0, not applied to other codes.

To read the maximum input current limit, need to add 100 mA/200 mA offset based on above nominal input

current limit reading approach.

• When using a 10-mΩ sense resistor (RSNS_RAC=0b). There is 150-mA offset at code 0 and this 150 mA

offset is only applied to code 0, 100-mA offset should be added for all other non-zero codes.

• When using a 5-mΩ sense resistor (RSNS_RAC=1b). There is 300-mA offset at code 0 and this 300 mA

offset is only applied to code 0, 200-mA offset should be added for all other non-zero codes

Figure 8-21. IIN_DPM Register with 10-mΩ Sense Resistor (I2C address = 25/24h) [reset = 4100h]

Reserved

Input Current in

DPM, bit 6

Input Current in

DPM, bit 5

Input Current in

DPM, bit 4

Input Current in

DPM, bit 3

Input Current in

DPM, bit 2

Input Current in

DPM, bit 1

Input Current in

DPM, bit 0

Reserved

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 8-18. IIN_DPM Register with 5-mΩ Sense Resistor (I2C address = 25h) Field Descriptions

BIT

FIELD

TYPE

RESET

DESCRIPTION

Reserved

Not used. 1 = invalid write.

Input Current in DPM, bit 6