Owner manual

MAX1538
Power-Source Selector for
Dual-Battery Systems
_______________________________________________________________________________________ 3
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
LINEAR REGULATOR
V
DD
Output Voltage I
VDD
= 0 to 100µA
3.270
3.3
3.330
V
V
BATA
or V
BATB
= 5V to 19V, V
ADPIN
= 5V 1.0
V
BATA
= V
BATB
= 5V, V
ADPIN
= 5V to 28V 1.0
V
DD
Power-Supply Rejection
Ratio
V
BATA
, V
BATB
, or V
ADPIN
= 5V to 19V, sawtooth at
10V/µs, other supplies = 12V
1
mV / V
V
DD
Undervoltage Lockout Rising edge, relative to regulation point -55 -10 mV
COMPARATORS
ACDET, AIRDET Input Voltage
Range
0 5.5 V
ACDET, AIRDET Input Bias
Current
V
AIRDET
= V
ACDET
= 3V 0.1 1 µA
ACDET, AIRDET Trip Threshold Input falling
1.97
2.0
2.03
V
ACDET, AIRDET Hysteresis 20 mV
MINV_ Operating Voltage Range
0.93 2.60
V
MINV_ Input Bias Current V
MINV_
= 0.93V to 2.6V -50
+50
nA
V
MINV_
= 0.93V
4.605 4.65 4.695
V
MINV_
= 1.5V
7.455
7.5
7.545
BAT_ Minimum Voltage Trip
Threshold
V
BAT_
falling
V
MINV_
= 2.6V
12.93
13
13.07
V
BAT_ Minimum Voltage
Hysteresis
125
mV
BAT_ Pack Removal Detection
Threshold
V
BAT_
falling
1.90
2.0
2.10
V
BAT_ Pack Removal Hysteresis 85 mV
GATE DRIVERS (Note 1)
V
SOURCE
= 15V, V
PIN
= 7.5V 18 60
ADPPWR, REVBLK, ADPBLK,
DISBAT, DISA, DISB, CHGA,
CHGB Source Current (PMOS
Turn-Off)
V
SOURCE
= 15V, V
PIN
= 13V 3 15
mA
V
SOURCE
= 15V, V
PIN
= 15V 20 70
ADPPWR, REVBLK, ADPBLK,
DISBAT, DISA, DISB, CHGA,
CHGB Sink Current (PMOS
Turn-On)
V
SOURCE
= 15V, V
PIN
= 9.5V 10 55
mA
V
SOURCE
= 8V to 19V (ADPPWR, REVBLK, and AOPBLK,
V
SOURCE
= 8V to 28V)
-11.0 -9.0 -7.0
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 -3.65
V