DS2778K Maxim Integrated, DS2778K Datasheet - Page 8

• Manufacturer Part Number: DS2778K
• Description: Power Management IC Development Tools
• Manufacturer: Maxim Integrated
• Series: DS2775, DS2776, DS2777, DS2778r

DS2775–DS2778 Evaluation Kits
The user can bring up the Set Accumulation Bias
Register window (Figure 14) by left-clicking the Acc
Bias button. This window allows the user to enter val-
ues for the Accumulation Bias register in mA. Left-click-
ing on the Write button writes the Accumulation Bias
register and copies the value to EEPROM. The value
entered here is added to the Accumulated Current reg-
ister during each current conversion. The bias value
does not affect the Current register reading but is
reflected in the Accumulated Current register.
The user can bring up the Set Current Offset Bias
Register window (Figure 15) by left-clicking the
Current Offset Bias button. This window allows the
user to enter values for the Current Offset Bias register
in mA. Left-clicking on the Write button writes the
Current Offset Bias register and copies the value to
EEPROM. The value entered here is added to the
Current register during each current conversion. The
user can start an automatic current offset calibration by
left-clicking on the Calibrate button.
Figure 14. Set Accumulation Bias Register
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The Fuel Gauge Data subtab displays the latest fuel-
gauge calculations (Figure 16). The Full, Active
Empty, and Stand-by Empty levels are calculated
from the data input on the Parameters tab (Figure 24).
The remaining active absolute capacity (RAAC) and
the remaining stand-by absolute capacity (RSAC) are
displayed in terms of mAhr. The remaining active rela-
tive capacity (RARC) and remaining stand-by relative
capacity (RSRC) are displayed in terms of percent of
capacity remaining. The analog meter on the left dis-
plays the remaining active absolute capacity (RAAC).
The flags found in the Status register are displayed on
the right side of the window. When the Under Voltage
flag or the Power-On-Reset flag is set, a button
appears that allows the user to clear those bits. The
user can also issue a Software Power-On Reset com-
mand by left-clicking the Soft POR button.
Figure 15. Set Current Offset Bias Register