Cfg_Rfbout1; Cfg_Rfbout2; Cfg_Rdaci - Analog Devices LINEAR LT8491 Manual

LT8491
2
I C REGISTER DESCRIPTIONS

CFG_RFBOUT1

2
I C REG ADDRESS BIT(S)
0x30 [15:0]
The LT8491 uses this register value to calculate telemetry for the TELE_VBAT, TELE_POUT, and TELE_EFF registers.
CFG_RFBOUT1 is not used for any other purpose and does not affect charging in any way. Write this register to indicate
the value of R in the output feedback divider network. The value written to this register should be R
FBOUT1
kΩ multiplied by 10 in an unsigned integer format. See the examples above. The default value is all 0's indicating that
this value has not been configured.
Related Data Sheet Section: See HW Config: V

CFG_RFBOUT2

2
I C REG ADDRESS BIT(S)
0x32 [15:0]
The LT8491 uses this register value to calculate telemetry for the TELE_VBAT, TELE_POUT, and TELE_EFF registers.
CFG_RFBOUT2 is not used for any other purpose and does not affect charging in any way. Write this register to indi-
cate the value of R
FBOUT2
in kΩ multiplied by 100 in an unsigned integer format. See the examples above. The default value is all 0's indicating
that this value has not been configured.
Related Data Sheet Section: See HW Config: V

CFG_RDACI

2
I C REG ADDRESS BIT(S)
0x34 [15:0]
The LT8491 uses this register value to calculate telemetry for the TELE_VIN register. It is also used to calculate telem-
etry for TELE_PIN and TELE_EFF when powered by a DC power supply. CFG_RDACI is not used for any other purpose
and does not affect charging in any way. Write this register to indicate the total value of R
feedback divider network. The value written to this register should be the total value of R
plied by 100 in an unsigned integer format. See the examples above. The default value is 0x0000 indicating that this
value has not been configured.
Related Data Sheet Sections: HW Config: Input Voltage Sensing and Modulation, HW Config: DC Supply Powered
Charging
44
UNITS FORMAT
kΩ • 10 Unsigned Integer
in Stage 2 (V
BAT
UNITS FORMAT
kΩ • 100 Unsigned Integer
in the output feedback divider network. The value written to this register should be R
in Stage 2 (V
BAT
UNITS FORMAT
kΩ • 100 Unsigned Integer 95.3kΩ = 0x253A
For more information
EXAMPLES DESCRIPTION
442kΩ = 0x1144 Value of R
FBOUT1
274kΩ = 0x0AB4 TELE_VBAT, TELE_POUT, TELE_EFF.
) for information about R
S2
EXAMPLES DESCRIPTION
10kΩ = 0x03E8 Value of R
FBOUT2
20kΩ = 0x07D0 TELE_VBAT, TELE_POUT, TELE_EFF.
) for information about R
S2
EXAMPLES DESCRIPTION
Value of R
DACI1
24.3kΩ = 0x097E TELE_VIN. Also required for TELE_PIN and TELE_EFF telemetry
when powered by a DC power supply.
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. Required to calculate telemetry for
FBOUT1
. Required to calculate telemetry for
FBOUT2
+ R . Required to calculate telemetry for
DACI2
+ R
DACI1 DACI2
+ R , in kΩ multi-
DACI1 DACI2
, in
FBOUT1
,
FBOUT2
in the input
Rev. 0