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MAX1538ETI+T

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
MAX1538
Power-Source Selector for
Dual-Battery Systems
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
BATA
= V
BATB
= V
CHGIN
= 16.8V, C
VDD
= 1µF, V
MINVA
= V
MINVB
= 0.93V, V
EXTLD
= V
ADPIN
= 28V, V
CHRG
= V
BATSEL
= V
RELRN
= 0,
C
ADPPWR
= C
REVBLK
= C
ADPBLK
= C
DISBAT
= C
DISA
= C
DISB
= C
CHGA
= C
CHGB
= 4.7nF, T
A
= 0°C to +85°C, unless otherwise noted.
Typical values are at T
A
= +25°C.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ADPPWR, REVBLK, ADPBLK,
DISBAT, DISA, DISB, CHGA,
CHGB Turn-On Time
V
SOURCE
= 15V, V
PIN
= 13V to V
PIN
= 9V
0.3
0.88
µs
ADPPWR, REVBLK, ADPBLK,
DISBAT, DISA, DISB, CHGA,
CHGB Turn-Off Time
V
SOURCE
= 15V, V
PIN
= 9V to V
PIN
= 13V
0.3
0.88
µs
STATE SELECTION INPUTS
CHRG, BATSEL, RELRN Input
Low Voltage
0.8 V
CHRG, BATSEL, RELRN Input
High Voltage
2.1 V
CHRG, BATSEL, RELRN Input
Leakage Current
V
CHRG
= V
BATSEL
= V
RELRN
= 5.5V 0.1 1 µA
STATE OUTPUTS
V
OUT_
= 0.4V 1
OUT0, OUT1, OUT2 Sink Current
V
OUT_
= 5.5V 25
mA
OUT0, OUT1, OUT2 Leakage
Current
V
OU T _
= 5.5V
0.1 1 µA
TRANSITION TIMES
MINV_ Comparator Delay t
MINV
V
BAT
_ = 5.5V to V
BAT
_ = 4.45V 5.5 11 µs
AIRDET and ACDET Comparator
Delay
t
ADP
Falling edge with -20mV overdrive 2.7 6.0 µs
BAT_ Removal Comparator Delay
Falling edge with -20mV overdrive 10 µs
Battery-Insertion Blanking Time t
BBLANK
13 21 31 ms
State-Machine Delay 50 ns
MOSFET Turn-On Delay t
TRANS
5 7.5 10 µs
MAX1538
Power-Source Selector for
Dual-Battery Systems
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS
(V
BATA
= V
BATB
= V
CHGIN
= 16.8V, C
VDD
= 1µF, V
MINVA
= V
MINVB
= 0.93V, V
EXTLD
= V
ADPIN
= 28V, V
CHRG
= V
BATSEL
= V
RELRN
= 0,
C
ADPPWR
= C
REVBLK
= C
ADPBLK
= C
DISBAT
= C
DISA
= C
DISB
= C
CHGA
= C
CHGB
= 4.7nF, T
A
= -40°C to +85°C, unless otherwise noted.)
(Note 2)
PARAMETER CONDITIONS
MIN MAX
UNITS
ADPIN, EXTLD Supply Voltage
Range
4.75 28.00
V
CHGIN, BATA, BATB, and
BATSUP Supply Voltage Range
4.75 19.00
V
V
ADPIN
= highest,
V
ADPPWR
= high
50
V
ADPIN
= highest,
V
ADPPWR
= low
54
V
BATA
= highest, V
DISA
= high
42
V
BATA
= highest, V
DISA
= low
50
V
BATB
= highest, V
DISB
= high
42
V
BATB
= highest, V
DISB
= low
50
ADPIN, BATA, BATB, BATSUP
Quiescent Current (Current from
the Highest Voltage Supply)
V
B AT A
= 4.75V to 19V ,
V
B AT B
= 4.75V to 19V ,
V
B AT S U P
= 4.75V to 19V ,
V
A D P IN
= 4.75V to 28V ,
no exter nal l oad at V
D D
V
BATSUP
= highest 40
µA
V
ADPPWR
= high 1
ADPIN Quiescent Current (ADPIN
Current When Not the Highest
Voltage)
V
ADPIN
= 4.75V to 18V,
no external load at V
DD
V
ADPPWR
= low 9
µA
V
DISA
= high 7.5
BATA Quiescent Current (BATA
Current When Not the Highest
Voltage)
V
BATA
= 4.75V to 19V,
no external load at V
DD
V
DISA
= low 16
µA
V
DISB
= high 7.5
BATB Quiescent Current (BATB
Current When Not the Highest
Voltage)
V
BATB
= 4.75V to 19V,
no external load at V
DD
V
DISB
= low 16
µA
Adapter selected (REVBLK or ADPBLK pins low) 9.5
EXTLD Quiescent Current
Adapter not selected (REVBLK and ADPBLK pins high) 1.0
µA
AC or ai r l i ne state ( C H G A, C H GB, and D IS BAT p i ns hi g h) 1.5
Charge state (CHGA or CHGB pin low, DISBAT pin high)
10
CHGIN Quiescent Current
Discharge or relearn state (CHGA or CHGB pin low,
DISBAT pin low)
18.5
µA
LINEAR REGULATOR
V
DD
Output Voltage I
VDD
= 0 to 100µA
3.270 3.330
V
V
DD
Undervoltage Lockout Rising edge, relative to regulation point -60 -10 mV
COMPARATORS
ACDET, AIRDET Input Voltage
Range
0 5.5 V
ACDET, AIRDET Trip Threshold Input falling
1.94 2.06
V
MINV_ Operating Voltage Range
0.93 2.60
V
V
MINV_
= 0.93V
4.59 4.72
V
MINV_
= 1.5V 7.4 7.6
BAT_ Minimum Voltage Trip
Threshold
V
BAT_
falling
V
MINV_
= 2.6V
12.86 13.14
V
MAX1538
Power-Source Selector for
Dual-Battery Systems
6 _______________________________________________________________________________________
PARAMETER
SYMBOL
CONDITIONS
MIN MAX
UNITS
BAT_ Pack Removal Detection
Threshold
V
BAT_
falling
1.88 2.12
V
GATE DRIVERS (Note 1)
V
SOURCE
= 15V, V
PIN
= 7.5V 18
ADPPWR, REVBLK, ADPBLK,
DISBAT, DISA, DISB, CHGA,
CHGB Source Current (PMOS
Turn-Off)
V
SOURCE
= 15V, V
PIN
= 13V 3
mA
V
SOURCE
= 15V, V
PIN
= 15V 20
ADPPWR, REVBLK, ADPBLK,
DISBAT, DISA, DISB, CHGA,
CHGB Sink Current (PMOS
Turn-On)
V
SOURCE
= 15V, V
PIN
= 9.5V 10
mA
V
S OU RC E
= 8V to 19V ( AD P P W R, RE V BLK,
and AD P BLK, V
S OU RC E
= 8V to 28V )
-11.7 -6.5
ADPPWR, REVBLK, ADPBLK,
DISBAT, DISA, DISB, CHGA,
CHGB Turn-On Clamp Voltage
(V
PIN
to V
SOURCE
)
V
SOURCE
= 4.75V to 8V
-8.00 -3.50
V
ADPPWR, REVBLK, ADPBLK,
DISBAT, DISA, DISB, CHGA,
CHGB Turn-On Time
V
SOURCE
= 15V, V
PIN
= 13V to V
PIN
= 9V 0.88
µs
ADPPWR, REVBLK, ADPBLK,
DISBAT, DISA, DISB, CHGA,
CHGB Turn-Off Time
V
SOURCE
= 15V, V
PIN
= 9V to V
PIN
= 13V 0.88
µs
STATE SELECTION INPUTS
CHRG, BATSEL, RELRN Input
Low Voltage
0.8 V
CHRG, BATSEL, RELRN Input
High Voltage
2.1 V
STATE OUTPUTS
V
OU T _
= 0.4V
1
OUT0, OUT1, OUT2 Sink Current
V
OU T _
= 5.5V
25
mA
TRANSITION TIMES
MINV_ Comparator Delay t
MINV
V
BAT
_ = 5.5V to V
BAT
_ = 4.45V 11 µs
AIRDET and ACDET Comparator
Delay
t
ADP
Falling edge with -20mV overdrive 6 µs
Battery-Insertion Blanking Time t
BBLANK
12 31 ms
MOSFET Turn-On Delay t
TRANS
510µs
Note 1: V
PIN
refers to the voltage of the driver output. V
SOURCE
refers to the power source for the driver. ADPPWR, REVBLK, ADP-
BLK, DISBAT, DISA, DISB, CHGA, and CHGB gate drivers correspond to sources at ADPIN, EXTLD, EXTLD, CHGIN, BATA,
BATB, CHGIN, and CHGIN, respectively.
Note 2: Guaranteed by design. Not production tested.
ELECTRICAL CHARACTERISTICS (continued)
(V
BATA
= V
BATB
= V
CHGIN
= 16.8V, C
VDD
= 1µF, V
MINVA
= V
MINVB
= 0.93V, V
EXTLD
= V
ADPIN
= 28V, V
CHRG
= V
BATSEL
= V
RELRN
= 0,
C
ADPPWR
= C
REVBLK
= C
ADPBLK
= C
DISBAT
= C
DISA
= C
DISB
= C
CHGA
= C
CHGB
= 4.7nF, T
A
= -40°C to +85°C, unless otherwise noted.)
(Note 2)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22

MAX1538ETI+T

Mfr. #:
Buy MAX1538ETI+T
Manufacturer:
Maxim Integrated
Description:
Battery Management Power-Source Select for Dual-Bat System
Lifecycle:
New from this manufacturer.
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