MAX5927A/MAX5929A–MAX5929D
Low-Voltage, Quad, Hot-Swap
Controllers/Power Sequencers
4
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ELECTRICAL CHARACTERISTICS (continued)
(V
IN_
= +1V to +15V provided at least one supply is larger than or equal to +2.7V, T
A
= -40°C to +85°C, unless otherwise noted.
Typical values are at V
IN1
= 12.0V, V
IN2
= 5.0V, V
IN3
= 3.3V, V
IN4
= 1.0V, V
ON_
= +3.3V, and T
A
= +25°C.) (Notes 1, 2)
Note 2: All devices are 100% tested at T
A
= +85°C. Limits over temperature are guaranteed by design.
Note 3: The slow-comparator threshold is adjustable. V
SC,TH
= R
LIM
x 7.5µA + 25mV (see the
Typical Operating Characteristics
).
Note 4: The current-limit slow-comparator response time is weighed 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 (t
START
) 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).
Note 6: The current available at GATE is a function of V
GATE
(see the
Typical Operating Characteristics
).
Note 7: After a fault triggered by the fast comparator, the gate is discharged by the strong discharge current.
Note 8: Each channel input while the other inputs are at +1V.
Note 9: Each channel input while any other input is at +3.3V.
Typical Operating Characteristics
(
Typical Operating Circuit
, Q1 = Q2 = Q3 = Q4 = Fairchild FDB7090L, V
IN1
= 12V, V
IN2
= 5.0V, V
IN3
= 3.3V, V
IN4
= 1.0V, T
A
=
+25°C, unless otherwise noted. Channels 1 through 4 are identical in performance. Where characteristics are interchangeable,
channels 1 through 4 are referred to as W, X, Y, and Z.)
