Datasheet

= ´
Exponent
READ _ VOUT _ CAL _ GAIN Mantissa 2
= ´
Exponent
READ _ VIN _ CAL _ OFFSET Mantissa 2
= ´
Exponent
READ _ VIN _ CAL _ GAIN Mantissa 2
TPS40400
www.ti.com SLUS930B –APRIL 2011– REVISED OCTOBER 2011
Default value: 0
• Exponent is fixed at -8
• LSB value is 0.4%
• Range -0.125 to 0.121 (33)
MFR_SPECIFIC_06 (D6h)
This command applies an offset to the READ_VIN command results to calibrate out offset errors in the on board
measurement system. The contents of this register can be stored to non-volatile memory using the
STORE_DEFAULT_ALL or STORE_DEFAULT_CODE commands.
Command MFR_SPECIFIC_06
Format Linear, two's compliment binary
Bit Position 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
Access r
(1)
r
(1)
r
(1)
r
(1)
r
(1)
r/w r
(1)
r
(1)
r
(1)
r
(1)
r/w r/w r/w r/w r/w r/w
Function Exponent Mantissa
Default Value 1 1 0 1 1 0 0 0 0 0 0 0 0 0 0 0
(1) Bits are sign extension only and are not otherwise programmable.
Default value: 0
• Exponent is fixed at -5
• LSB value is 32vmV
• Range -2vV to 1.968vV (34)
MFR_SPECIFIC_07 (D7h)
This command applies a gain correction to the READ_VIN command results to calibrate out gain errors in the on
board measurement system. The contents of this register can be stored to non-volatile memory using the
STORE_DEFAULT_ALL or STORE_DEFAULT_CODE commands.
Command MFR_SPECIFIC_07
Format Linear, two's compliment binary
Bit Position 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0
Access r r r r r r/w r
(1)
r
(1)
r
(1)
r
(1)
r
(1)
r/w r/w r/w r/w r/w
Function Exponent Mantissa
Default Value 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0
(1) Bits are sign extension only and are not otherwise programmable.
Default value: 0
• Exponent is fixed at -8
• LSB value is 0.4%
• Range -0.125V to 10.121 (35)
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