MAX5904(2003) データシートの表示（PDF） - Maxim Integrated

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MAX5904
(Rev.:2003)

Low-Voltage, Dual Hot-Swap Controllers/Power Sequencers

Maxim Integrated 

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 = TMIN to TMAX, unless otherwise noted.

Typical values are at VIN1 = +5V, VIN2 = +3.3V, and TA = +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

Channel 1 ON Threshold

Channel 2 ON Threshold

ON Propagation Delay

ON Input Bias Current

ON Pulse Width Low

DIGITAL OUTPUT (PGOOD)

Low to high

VON1,TH

Hysteresis

Low to high

VON2,TH

Hysteresis

tON 10mV overdrive

VON < 4.5V

IBON VIN1 = VIN2 = +13.2V VON > 4.5V

VON = 4V

tUNLATCH To unlatch after a latched fault

0.80 0.825 0.85

V

25

mV

1.95 2.025 2.07

V

25

mV

50

µs

0.03

100

µA

0.03

1

100

µs

Output Leakage Current

VPGOOD = 13.2V

Output Voltage Low

PGOOD Delay

VOL

tPGDLY

ISINK = 1mA

After tSTART, MON_ = VIN_

OUTPUT VOLTAGE MONITORS (MON1, MON2)

MON_ Trip Threshold

Overvoltage

VMON_ Undervoltage

MON_ Glitch Filter

1

µA

0.4

V

0.75

ms

657 687

707

mV

513 543

563

20

µs

MON_ Input Bias Current

UNDERVOLTAGE LOCKOUT (UVLO)

VMON_ = 600mV

0.03

µA

UVLO Threshold

Startup is initiated when this threshold is reached

VUVLO by VIN1 or VIN2, VON > 0.8V, VIN_ increasing

2.1

2.4

2.67

V

Hysteresis

100

mV

UVLO Glitch Filter Reset Time

UVLO to Startup Delay

SHUTDOWN RESTART

VIN_ = 0V, to unlatch after a fault

tD,UVLO VIN_ step from 0 to 2.8V

100

µs

20

37.5

60

ms

Auto-Retry 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 1.236 1.266

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 The MAX5906–MAX5909 slow-comparator threshold is adjustable. VSC,TH = RLIM x 0.25µA + 25mV (see Typical Operating

Characteristics).

Note 3: 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 Typical Operating Characteristics.

Note 4: 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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