參數(shù)資料
型號： bq2502
廠商： Benchmark Technology Group
英文描述： Integrated Backup Unit(完整的后備單元)
中文描述： 綜合備份單元（完整的后備單元）
文件頁數(shù)： 5/12頁
文件大小： 88K
代理商： BQ2502
5
DC Electrical Characteristics
(TA= 0 to 70°C, VCC= 5V
±
10%)
Symbol
Parameter
Minimum
Typical
Maximum
Unit
Conditions/Notes
C
Battery capacity
-
130
-
mAhr
Refer to graphs in Typical
Battery Characteristics
section.
I
LI
V
OH
V
OHB
Input leakage current
-
-
±
1
-
μ
A
V
V
IN
= V
SS
to V
CC
I
OH
= -2.0mA
V
BAT
> V
CC
, I
OH
= -10
μ
A
I
OL
= 4.0mA
Refer to graphs in Typical
Battery Characteristics
section.
Output high voltage
2.4
-
V
OH
, backup supply
V
BAT
- 0.3
-
-
-
V
V
OL
Output low voltage
-
0.4
V
V
BAT
Internal battery voltage
-
2.9
-
V
I
CC
Operating supply current
-
3
6
mA
No load on V
OUT
, CE
CON1
,
CE
CON2
, and RST.
THS = V
SS
THS = V
OUT
V
PFD
Power-fail detect voltage
4.55
4.62
4.75
V
4.30
4.37
4.50
V
V
SO
Supply switch-over voltage
-
2.9
-
V
I
CCDR
Data-retention mode
current from internal battery
-
-
100
nA
No load on V
, CE
CON1
,
CE
CON2
, and RST.
V
CC
> V
BAT
, I
OUT
= 100mA
V
CC
> V
BAT
, I
OUT
= 160mA
V
CC
< V
BAT
, I
OUT
= 100
μ
A,
from internal battery
V
OUT
≥
V
CC
- 0.3V
V
OUT1
V
OUT
voltage
V
CC
- 0.2
V
CC
- 0.3
-
-
V
-
-
V
V
OUT2
V
OUT
voltage from internal
battery
VBAT- 0.2
-
-
V
I
OUT1
V
OUT
current
-
-
160
mA
Note:
Typical values indicate operation at T
A
= 25°C, V
CC
= 5V or V
BAT
.
Capacitance
(TA= 25°C, F = 1MHz, VCC= 5.0V)
Symbol
Parameter
Minimum
Typical
Maximum
Unit
Conditions
C
IN
Input capacitance
-
-
8
pF
Input voltage = 0V
C
OUT
Output capacitance
-
-
10
pF
Output voltage = 0V
Note:
This parameter is sampled and not 100% tested.
Apr. 1991
bq2502
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