參數(shù)資料
型號(hào)： BQ20Z80DBT-V101
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO38
封裝： GREEN, PLASTIC, TSSOP-38
文件頁(yè)數(shù)： 64/73頁(yè)
文件大?。?/td> 1094K
代理商： BQ20Z80DBT-V101
www.ti.com
bq20z80-V101
SLUS625D – SEPTEMBER 2004 – REVISED OCTOBER 2005
Display Format - Discharge
This mode is available when SBS.BatteryStatus( ) [DSG] = 1
LED
THRESHOLD
3-LEDs
4-LEDs
5-LEDs
USER
ALARM
DSG FLASH ALARM
10%
DSG FLASH ALARM
1
SBS.RSOC%( )
≥ DSG Thresh 1
0 to 33%
0 to 24%
0 to 19%
SBS.RSOC%( )
≥ DF:DSG Thresh 1
2
SBS.RSOC%( )
≥ DSG Thresh 2
34 to 66%
25 to 49%
20 to 39%
SBS.RSOC%( )
≥ DF:DSG Thresh 2
3
SBS.RSOC%( )
≥ DSG Thresh 3
67 to 100%
50 to 74%
40 to 59%
SBS.RSOC%( )
≥ DF:DSG Thresh 3
4
SBS.RSOC%( )
≥ DSG Thresh 4
–
75 to 100%
60 to 79%
SBS.RSOC%( )
≥ DF:DSG Thresh 4
5
SBS.RSOC%( )
≥ DSG Thresh 5
–
80 to 100%
SBS.RSOC%( )
≥ DF:DSG Thresh 5
The DSG Thresh x threshold is the % of SBS.RelativeStateOfCharge( ) or SBS.AbsoluteStateOfCharge( ) to
enable the respective LED.
The DSG Flash Alarm threshold is the % of SBS.RelativeStateOfCharge( ) or SBS.AbsoluteStateOfCharge( ) at
which the remaining active LEDs flash at a 50% duty-cycle rate of DF:LED Flash Rate.
If DF:Operation Cfg A [LEDRCA] AND SBS.BatteryStatus( ) [RCA] are set, the display flashes at the DF:LED
Flash Rate with a 50% duty cycle.
If DF:Operation Cfg A [LED1, LED0] = User, the User data flash percentages are used and the values are
defined within the range indicated in the Display Timing table.
When DF:Operation Cfg A [LEDRCA] = 0, the SBS.BatteryStatus( )[RCA] is ignored.
Display Format - Charge
This mode is available when SBS.BatteryStatus( ) DSG = 0
LED
THRESHOLD
3-LEDs
4-LEDs
5-LEDs
USER
ALARM
CHG Flash Alarm
10%
CHG Flash Alarm
1
SBS.RSOC%( )
≥ CHG Thresh 1
0 to 33%
0 to 24%
0 to 19%
SBS.RSOC%( )
≥DF:CHG Thresh 1
2
SBS.RSOC%( )
≥ CHG Thresh 2
34 to 66%
25 to 49%
20 to 39%
SBS.RSOC%( )
≥DF:CHG Thresh 2
3
SBS.RSOC%( )
≥ CHG Thresh 3
67 to 100%
50 to 74%
40 to 59%
SBS.RSOC%( )
≥DF:CHG Thresh 3
4
SBS.RSOC%( )
≥ CHG Thresh 4
–
75 to 100%
60 to 79%
SBS.RSOC%( )
≥DF:CHG Thresh 4
5
SBS.RSOC%( )
≥ CHG Thresh 5
–
80 to 100%
SBS.RSOC%( )
≥DF:CHG Thresh 5
The CHG Thresh x threshold is the % of SBS.RelativeStateOfCharge( ) or SBS.AbsoluteStateOfCharge( ) to
enable the respective LED.
During
charging
the
top
LED
segment
flashs
at
the
rate
or
DF:LED
Blink
Rate
(eg:
if
SBS.RelativeStateOfCharge( ) = 36% and 5 LEDs are being used then LED2 will blink).
The CHG Flash Alarm threshold is the % of SBS.RelativeStateOfCharge( ) or SBS.AbsoluteStateOfCharge( ) at
which the remaining active LEDs flash at the rate of DF:LED Flash Rate, with a 50% duty cycle.
If DF:Operation Cfg A [LEDRCA] AND SBS.BatteryStatus( ) [RCA] are set, the display flashes at the DF:LED
Flash Rate with a 50% duty cycle.
If DF:Operation Cfg A [LED1, LED0] = user, the user data flash percentages are used and the values are defined
within the range indicated in the Display Timing table.
67
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