參數(shù)資料
型號(hào)： MAX1773
廠商： Maxim Integrated Products, Inc.
英文描述： Power Source Selector for Dual-Battery Systems
中文描述： 電源選擇器，用于雙電池系統(tǒng)
文件頁(yè)數(shù)： 4/20頁(yè)
文件大小： 397K
代理商： MAX1773
M
Power Source Selector for
Dual-Battery Systems
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
BATA
= V
BATB
= 16.8V, C
VDD
= 3.3μF, V
MINV
= 0.93V, V
EXTLD
= V
ACDET
= 28V, V
TCOMP
= 3V, V
THMA
= V
THMB
= 1.65V,
V
BATSEL
= 0, C
COMA
= C
COMB
= C
DISA
= C
DISB
= C
CHGA
= C
CHGB
= C
PDS
= 5nF,
T
A
= 0
°
C to +85
°
C,
unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
-11.5
-8.00
TYP
-9.5
MAX
-7.5
-4.25
UNITS
V
EXTLD
= 8V to 28V
V
EXTLD
= 4.75V to 8V
DIS_ Turn-On Clamp Voltage
(V
DIS
_
to V
EXTLD
)
STATUS OUTPUTS
V
V
ACPRES
= 0.4V
V
ACPRES
= 5.5V
V
BATSTAT
= 0.4V
V
BATSTAT
= 5.5V
V
ACPRES
= 5.5V
V
BATSTAT
= 5.5V
1
ACPRES
Sink Current
30
mA
1
BATSTAT Sink Current
mA
ACPRES
Leakage Current
BATSTAT Leakage Current
TRANSITION TIMES
Battery Switchover Delay
Battery Action Delay
Thermistor Action Delay
AC to Battery Switchover Delay
Battery to AC Switchover Delay
CHG_ Turn-On Delay
0.1
0.1
1
1
μA
μA
V
ACDET
= 2.2V, V
MINV
= 0.93V (Note 6)
V
ACDET
= 2.2V, V
MINV
= 0.93V (Note 7)
V
ACDET
= 2.2V, V
MINV
= 0.93V (Note 8)
V
ACDET
= 2.2V, V
MINV
= 0.93V (Note 9)
V
ACDET
= 2.2V, V
MINV
= 0.93V (Note 10)
(Note 11)
5
μs
μs
μs
μs
μs
μs
260
12
10
260
530
130
300
ELECTRICAL CHARACTERISTICS
(V
BATA
= V
BATB
= 16.8V, C
VDD
= 3.3μF, V
MINV
= 0.93V, V
EXTLD
= V
ACDET
= 28V, V
TCOMP
= 3V, V
THMA
= V
THMB
= 1.65V,
V
BATSEL
= 0, C
COMA
= C
COMB
= C
DISA
= C
DISB
= C
CHGA
= C
CHGB
= C
PDS
= 5nF,
T
A
= -40
°
C to +85
°
C,
unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
4.75
4.75
TYP
MAX
28.00
19.00
8
UNITS
V
V
EXTLD Supply Voltage Range
BATA, BATB Supply Voltage Range
V
EXTLD
> V
BATA
and V
BATB
V
ACDET
= 28V
BATA, BATB Quiescent Current
(Current from the higher voltage supply)
V
BATA
= 4.75V to 19V,
V
BATB
= 4.75V to 19V,
I
VDD
= 0
V
ACDET
= 2.2V to
V
BATA
and V
BATB
V
ACDET
= 28V
70
μA
8
BATA, BATB Quiescent Current
(Current from the lower voltage supply)
V
BATA
= 4.75V to 19V,
V
BATB
= 4.75V to 19V,
I
VDD
= 0
V
ACDET
= 2.2V to
V
BATA
and V
BATB
13
μA
V
ACDET
= 28V, V
EXTLD
= 28V
V
AC DE T
= 2.2V to V
BATA
and V
BATB
, V
E X TLD
= 16V
55
8
EXTLD Quiescent Current
μA
LINEAR REGULATOR
I
VDD
= 0 to 100μA
I
VDD
= 100μA to 1mA
V
BATA
or V
BATB
= 5V to 19V, V
EXTLD
= 5V
V
BATA
= V
BATB
= 5V, V
EXTLD
= 5V to 28V
Hysteresis is typically 50mV
3.234
3.168
3.367
3.432
1.0
1.0
3.0
V
DD
Output Voltage
V
V
DD
Power-Supply Rejection Ratio
mV/V
V
DD
Undervoltage Lockout
COMPARATORS
TCOMP Undervoltage Lockout
2.0
V
(Note 2)
0
1.1
V
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