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參數資料
| 型號： | MAX1612 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Bridge-Battery Backup Controllers for Notebooks |
| 中文描述： | 備用橋接電池控制器，用于筆記本電腦 |
| 文件頁數： | 3/12頁 |
| 文件大?。?/td> | 136K |
| 代理商： | MAX1612 |
M
Bridge-Battery Bac kup Controllers
for Notebooks
_______________________________________________________________________________________
3
Typic al Operating Charac teristic s
(Circuit of Figure 3, T
A
= +25°C, unless otherwise noted.)
CONDITIONS
UNIT
MIN
TYP
MAX
SYMBOL
PARAMETER
CCMD
,
DCMD
V
CCMD
= 0, CC = GND
C
CD
= 3.3nF
V
DCMD
= 0, CD = GND
Resets the counter
Voltage that allows a new cycle, defined as
(V
BBATT
- V
LX
) (see DC-DC Converter section)
V
FB
= 2.1V
R
BBON
= 100k
to GND
V
LX
= 12V
I
LX
= 200mA
C
CC
= 33nF
V
0.8
V
IL
Logic Input Low Level
%
-1
1
CD to CC Current Matching
V
0.4
ISET Logic Input Low Voltage
Hz
60
75.8
95
CC
OSC
CC Oscillator Frequency
Hz
600
758
950
CD
OSC
CD Oscillator Frequency
V
1.95
2.05
10
1.100
10
1.5
V
FB
I
FB
I
PEAK
FB Trip Point
FB Input Current
LX Switch Current Limit
LX Off-Leakage
LX On-Resistance
μA
4.35
5.00
5.65
CC Output Current
V
2.1
BBON
Logic Input Low Voltage
TIMER BLOCK
V
-0.2
-0.1
0.2
LX Zero Crossing Trip Threshold
nA
A
μA
0.15
0.835
0.01
0.5
0.580
R
DSON
ELECTRICAL CHARACTERISTICS (continued)
(V
LRI
= V
ISET
= 20V,
CCMD
=
DCMD
=
BBON
= LRO, V
BBATT
= 3V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
CCMD
,
DCMD
V
2.2
V
IH
Logic Input High Level
V
CCMD
, V
DCMD
= 0 to V
LRO
μA
1
I
(
CCMD
),
I
(
DCMD
)
Logic Input Leakage Current
DC-DC CONVERTER
Note 1:
Specifications from 0°C to -40°C are guaranteed by design, not production tested.
0
20
40
60
80
100
120
0
10
5
15
20
25
30
35
40
45
DISCHARGE TIME
vs. OUTPUT CURRENT
M
OUTPUT CURRENT (mA)
D
2 CELLS (SANYON-50AAA)
V
OUT
= 7V
V
OUT
= 5V
100k
1
0.1
10
100
1
1000
OSCILLATOR FREQUENCY
vs. CAPACITANCE
10
M
CAPACITANCE (nF)
O
100
1k
10k
CD
CC
90
80
70
0
1
μ
10
μ
1m
10m
100m
100
μ
OUTPUT CURRENT (A)
1
EFFICIENCY vs. OUTPUT CURRENT
(BBATT = 3.6V)
M
E
30
20
10
60
50
40
V
OUT
= 7V
V
OUT
V
OUT
= 5V
BBATT = 3.6V
R
BBON
= 240k
NOTE: DC-DC
CONVERTER
SUPPLIES V
LRI
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