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参数资料
型号： BQ27500DRZT-V120G4
厂商： TEXAS INSTRUMENTS INC
元件分类： 电源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12
封装： 2.50 X 4 MM, PLASTIC, SON-12
文件页数： 10/42页
文件大小： 898K
代理商： BQ27500DRZT-V120G4
4.6 DATA FLASH SUMMARY
bq27500
bq27501
System-Side Impedance Track Fuel Gauge
SLUS785D – SEPTEMBER 2007 – REVISED APRIL 2008
www.ti.com
When in SEALED mode, the CONTROL_STATUS [SS] bit is set, but when the unseal keys are correctly
received by the bq27500/1, the [SS] bit is cleared. When the full-access keys are correctly received, then
the CONTROL_STATUS [FAS] bit is cleared.
Both the sets of keys for each level are 2 bytes each in length and are stored in data flash. The unseal
key (stored at Unseal Key 0 and Unseal Key 1) and the full-access key (stored at Full-Access Key 0
and Full-Access Key 1) can only be updated when in FULL-ACCESS mode. The order of the bytes
entered through the Control( ) command is the reverse of what is read from the part. For example, if the
first and second words of the Unseal Key 0 read returns 0x1234 and 0x5678, then the Control( ) should
supply 0x3412 and 0x7856 to unseal the part.
Table 4-7 summarizes the data flash locations available to the user, including their default, minimum, and
maximum values.
Table 4-7. Data Flash Summary
Subclass
Data
Min
Max
Default
Class
Subclass
Offset
Name
Units
ID
Type
Value
Configuration
2
Safety
0
OT Chg
I2
0
1200
550
0.1
°C
Configuration
2
Safety
2
OT Chg Time
U1
0
60
2
s
Configuration
2
Safety
3
OT Chg Recovery
I2
0
1200
500
0.1
°C
Configuration
2
Safety
5
OT Dsg
I2
0
1200
600
0.1
°C
Configuration
2
Safety
7
OT Dsg Time
U1
0
60
2
s
Configuration
2
Safety
8
OT Dsg Recovery
I2
0
1200
550
0.1
°C
Charge Inhibit
Configuration
32
0
Charge Inhibit Temp Low
I2
–400
1200
0
0.1
°C
Config
Charge Inhibit
Configuration
32
2
Charge Inhibit Temp High
I2
–400
1200
450
0.1
°C
Config
Charge Inhibit
Configuration
32
4
Temp Hys
I2
0
100
50
0.1
°C
Config
Configuration
34
Charge
2
Charging Voltage
I2
0
20,000
4200
mV
Configuration
34
Charge
4
Delta Temperature
I2
0
500
50
0.1
°C
Configuration
34
Charge
6
Suspend Temperature Low
I2
–400
1200
-50
0.1
°C
Configuration
34
Charge
8
Suspend Temperature High
I2
–400
1200
550
0.1
°C
Charge
Configuration
36
2
Taper Current
I2
0
1000
100
mA
Termination
Charge
Configuration
36
4
Minimum Taper Charge
I2
0
1000
25
mAh
Termination
Charge
Configuration
36
6
Taper Voltage
I2
0
1000
100
mV
Termination
Charge
Configuration
36
8
Current Taper Window
U1
0
60
40
s
Termination
Configuration
48
Data
4
Initial Standby Current
I1
–128
0
–10
mA
Configuration
48
Data
5
Initial Max Load Current
I2
–32,767
0
–500
mA
Configuration
48
Data
7
CC Threshold
I2
100
32,767
900
mAh
Configuration
48
Data
10
Design Capacity
I2
0
65,535
1000
mAh
bq27500
Configuration
48
Data
12
Device Name
S8
x
or
–
bq27501
Configuration
49
Discharge
0
SOC1 Set Threshold
U1
0
255
150
mAh
Configuration
49
Discharge
1
SOC1 Clear Threshold
U1
0
255
175
mAh
Configuration
49
Discharge
2
SOCF Set Threshold
U1
0
255
75
mAh
Configuration
49
Discharge
3
SOCF Clear Threshold
U1
0
255
100
mAh
Manufacturer
System Data
57
0–31
Block A [0–31]
H1
0x00
0xff
0x00
–
Info
GENERAL DESCRIPTION
18
Submit Documentation Feedback
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