MAX1538 Datasheet, PDF (3/22 Pages) Maxim Integrated Products – Power-Source Selector for Dual-Battery Systems

Power-Source Selector for
Dual-Battery Systems
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, TA = 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
V_DD Power-Supply Rejection
Ratio
I_VDD = 0 to 100µA
V_BATA or V_BATB = 5V to 19V, V_ADPIN = 5V
V_BATA = V_BATB = 5V, V_ADPIN = 5V to 28V
V_BATA, V_BATB, or V_ADPIN = 5V to 19V, sawtooth at
10V/µs, other supplies = 12V
3.270 3.3 3.330
V
1.0
1.0
mV/ V
1
V_DD Undervoltage Lockout
COMPARATORS
Rising edge, relative to regulation point
-55
-10
mV
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
ACDET, AIRDET Hysteresis
MINV_ Operating Voltage Range
MINV_ Input Bias Current
Input falling
V_{MINV_} = 0.93V to 2.6V
BAT_ Minimum Voltage Trip
Threshold
V_{BAT_} falling
BAT_ Minimum Voltage
Hysteresis
BAT_ Pack Removal Detection
Threshold
BAT_ Pack Removal Hysteresis
GATE DRIVERS (Note 1)
V_{BAT_} falling
V_{MINV_} = 0.93V
V_{MINV_} = 1.5V
V_{MINV_} = 2.6V
1.97
2.0
2.03
V
20
mV
0.93
2.60
V
-50
+50
nA
4.605 4.65 4.695
7.455 7.5 7.545
V
12.93 13 13.07
125
mV
1.90
2.0
2.10
V
85
mV
ADPPWR, REVBLK, ADPBLK,
DISBAT, DISA, DISB, CHGA,
CHGB Source Current (PMOS
Turn-Off)
V_SOURCE = 15V, V_PIN = 7.5V
V_SOURCE = 15V, V_PIN = 13V
18
60
mA
3
15
ADPPWR, REVBLK, ADPBLK,
DISBAT, DISA, DISB, CHGA,
CHGB Sink Current (PMOS
Turn-On)
V_SOURCE = 15V, V_PIN = 15V
V_SOURCE = 15V, V_PIN = 9.5V
20
70
mA
10
55
ADPPWR, REVBLK, ADPBLK,
DISBAT, DISA, DISB, CHGA,
V_SOURCE = 8V to 19V (ADPPWR, REVBLK, and AOPBLK,
V_SOURCE = 8V to 28V)
-11.0
-9.0
-7.0
V
CHGB Turn-On Clamp Voltage
(V_PIN to V_SOURCE)
V_SOURCE = 4.75V to 8V
-8.00
-3.65
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