MAX5904 データシートの表示（PDF） - Maxim Integrated
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MAX5904 Datasheet PDF : 24 Pages
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Low-Voltage, Dual Hot-Swap Controllers/Power
Sequencers
ELECTRICAL CHARACTERISTICS (continued)
(VIN_ = +1V to +13.2V provided at least one supply is higher than +2.7V, VON = +2.7V, TA = -40°C to +85°C, unless otherwise noted.
Typical values are at VIN1 = +5V, VIN2 = +3.3V, and TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
VON < 4.5V
ON Input Bias Current
IBON VIN1 = VIN2 = +13.2V VON > 4.5V
VON = 4V
ON Pulse-Width Low
tUNLATCH To unlatch after a latched fault
100
DIGITAL OUTPUT (PGOOD)
Output Leakage Current
VPGOOD = 13.2V
Output-Voltage Low
PGOOD Delay
VOL
tPGDLY
ISINK = 1mA
After tSTART, MON_ = VIN_
OUTPUT VOLTAGE MONITORS (MON1, MON2)
Overvoltage
655
MON_ Trip Threshold
VMON_
Undervoltage
513
MON_ Glitch Filter
MON_ Input Bias Current
UNDERVOLTAGE LOCKOUT (UVLO)
VMON_ = 600mV
UVLO Threshold
Startup is initiated when this threshold is reached
VUVLO by VIN1 or VIN2, VON > 0.8V, VIN_ increasing
2.1
Hysteresis
UVLO Glitch Filter Reset Time
VIN_ = 0V, to unlatch after a fault
100
UVLO to Startup Delay
tD,UVLO VIN_ step from 0 to 2.8V
18
SHUTDOWN RESTART
TYP
0.03
100
0.03
0.75
687
543
20
0.03
2.4
100
37.5
MAX UNITS
µA
1
µs
1
µA
0.4
V
ms
710
mV
567
µs
µA
2.67
V
mV
µs
64
ms
Autoretry Delay
tRETRY
Delay time to restart after a fault shutdown
MAX5904/MAX5906/MAX5908
64 x tSTART
ms
UNCOMMITTED COMPARATOR
INC+ Trip Threshold Voltage
Propagation Delay
OUTC Voltage Low
INC+ Bias Current
OUTC Leakage Current
VC,TH
VOL
IOUTC
Low to high
Hysteresis
10mV overdrive
ISINK = 1mA
VINC+ = 5V
VOUTC = 13.2V
1.206 1.25 1.290
V
10
mV
50
µs
0.4
V
0.02
1
µA
0.02
1
µA
Note 1: Limits are 100% tested at TA = +25°C and +85°C. Limits at 0°C and -40° are guaranteed by characterization and are not produc-
tion tested.
Note 2: VIN rising slew rate must be less than 0.2V/µs.
Note 3: The MAX5906–MAX5909 slow-comparator threshold is adjustable. VSC,TH = RLIM x 0.25µA + 25mV (see the Typical
Operating Characteristics).
Note 4: The current-limit slow-comparator response time is weighted against the amount of overcurrent; the higher the overcurrent
condition, the faster the response time. See the Typical Operating Characteristics.
Note 5: The startup period (tSTART) is the time during which the slow comparator is ignored and the device acts as a current limiter
by regulating the sense current with the fast comparator. See the Startup Period section.
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