Rainbow Electronics MAX1538 - Manual (Page 5)

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, TA = -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