MAX1538 Datasheet, PDF (2/22 Pages) Maxim Integrated Products – Power-Source Selector for Dual-Battery Systems

Power-Source Selector for
Dual-Battery Systems
ABSOLUTE MAXIMUM RATINGS
V_EXTLD, V_BATSUP, V_ADPIN, V_BATA, V_BATB,
Continuous Power Dissipation (T_A = +70°C)
V_CHGIN to GND .................................................-0.3V to +30V
28-Pin Thin QFN 5mm x 5mm
V_ADPPWR to GND...................................-0.3V to (V_ADPIN + 0.3V)
(derate 20.8mW/°C above +70°C) ..........................1666.7mW
V_REVBLK, V_ADPBLK to GND ...................-0.3V to (V_EXTLD + 0.3V)
Operating Temperature Range
V_CHGA, V_CHGB, V_DISBAT to GND ..........-0.3V to (V_CHGIN + 0.3V)
MAX1538ETI ....................................................-40°C to +85°C
V_DISA to GND ..........................................-0.3V to (V_BATA + 0.3V)
Junction Temperature ......................................................+150°C
V_DISB to GND ..........................................-0.3V to (V_BATB + 0.3V)
Storage Temperature Range .............................-65°C to +150°C
V_DD, V_CHRG, V_BATSEL, V_RELRN, V_OUT0, V_OUT1, V_OUT2,
Lead Temperature (soldering, 10s) .................................+300°C
V_MINVA, V_MINVB, V_AIRDET, V_ACDET to GND..........-0.3V to +6V
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
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, TA = 0°C to +85°C, unless otherwise noted.
Typical values are at T_A = +25°C.)
PARAMETER
CONDITIONS
MIN TYP 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
21
50
ADPIN, BATA, BATB, BATSUP
Quiescent Current (Current from
the Highest Voltage Supply)
ADPIN Quiescent Current (ADPIN
Current When Not the Highest
Voltage)
V_BATA = 4.75V to 19V,
V_BATB = 4.75V to 19V,
V_BATSUP = 4.75V to 19V,
V_ADPIN = 4.75V to 28V,
no external load at V_DD
V_ADPIN = 4.75V to 18V,
no external load at V_DD
V_ADPIN = highest,
V_ADPPWR = low
V_BATA = highest,
V_DISA = high
V_BATA = highest, V_DISA = low
V_BATB = highest,
V_DISB = high
V_BATB = highest, V_DISB = low
V_BATSUP = highest
V_ADPPWR = high
V_ADPPWR = low
23
54
21
42
µA
24
50
21
42
24
50
18
40
0.01
0.5
µA
2.6
6
BATA Quiescent Current (BATA
Current When Not the Highest
Voltage)
V_BATA = 4.75V to 19V,
no external load at V_DD
V_DISA = high
V_DISA = low
3.9
6.0
µA
7.0
12
BATB Quiescent Current (BATB
Current When Not the Highest
Voltage)
EXTLD Quiescent Current
CHGIN Quiescent Current
V_BATB = 4.75V to 19V,
no external load at V_DD
V_DISB = high
V_DISB = low
Adapter selected (REVBLK or ADPBLK pins low)
Adapter not selected (REVBLK and ADPBLK pins high)
AC or airline state (CHGA, CHGB, and DISBAT pins high)
Charge state (CHGA or CHGB pin low, DISBAT pin high)
Discharge or relearn state (CHGA or CHGB pin low,
DISBAT pin low)
3.9
6.0
µA
7.0
12
3.0
6.1
µA
0.02
1.0
0.03
1.5
3.1
6.2
µA
6.1
12.1
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