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SLUS785D Datasheet(PDF) 3 Page - Texas Instruments

Part # SLUS785D
Description  bq27500 Errata (SLUS785)
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

SLUS785D Datasheet(HTML) 3 Page - Texas Instruments

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bq27500 Firmware Revision and Errata List
www.ti.com
bq27500 Firmware Revision and Errata List
Firmware
Shipment Form
IC Lot Codes
Discrepencies
Revision
v1.02
Samples and production
D4NE, A207,
1.
The part may not enter SLEEP Mode when discharge current is less
shipments
K042, K043,
than Sleep Current and greater than 0.
K04R
EVMs (sampled or
• SLUS785D data sheet: SLEEP mode is entered automatically if the
purchased))
feature is enabled (Operation Configuration [SLEEP] = 1) and
AverageCurrent () is below the programmable level Sleep Current.
• Operation: The part may not enter Sleep mode.
The affected material can be identified by the lot
2.
Fuel gauging with Load Mode = 1 (indicating the constant power model)
code on the bq27500 IC in the location shown in
does not operate properly.
Figure 1.
• SLUS785D data sheet: Section 5.2.1 allows the selection of a
constant current fuel gauge model or constant power fuel gauge
model.
• Operation: Only the constant current fuel gauge model operates
(Load Mode = 0) properly. For the bq27500, this is the
recommended configuration.
3.
Wake from HIBERNATE mode may require multiple communication
attempts.
• SLUS785D data sheet: Section 5.7.4. The gauge remains in
HIBERNATE mode until the battery is removed or the system issues
a direct I2C command to the gauge.
• Operation: Wake from HIBERNATE mode requires multiple direct
communication attempts.
4.
The part may not enter HIBERNATE mode with [HIBERNATE] = 1 in
CONTROL_STATUS
• SLUS785D data sheet: Section 5.7.4. The gauge enters
HIBERNATE when HIBERNATE = 1 in CONTROL_STATUS register
and a valid OCV measurement is taken AND the current drops
below Hibernate Current.
• Operation: The HIBERNATE bit will clear if the battery is not in a
relaxed state preventing entry into HIBERNATE mode.
SLUZ015B – October 2007 – Revised September 2008
bq27500 Errata (SLUS785)
3
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