Rainbow Electronics MAX5929 - Manual (Page 3)

MAX5927/MAX5929
Low-Voltage, Quad, Hot-Swap
Controllers/Power Sequencers
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ELECTRICAL CHARACTERISTICS (continued)
(V
IN_
= +1V to +13.2V provided at least one supply is larger than or equal to +2.7V and only one supply is > +11.0V, 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)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Charging, V
GATE_
= GND, V
IN_
= 5V
(Note 6)
80 100 120
Discharging, during startup 100
µA
Discharging, normal turn-off or triggered by
the slow comparator after startup,
V
GATE_ = 5V, V IN_ = 10V, V ON_ = 0V
2 3 7 Average Gate Current I GATE
Discharging, triggered by a fault after
startup, V
GATE_ = 5V, V IN_ = 10V,
(V IN_ - V SENSE_ ) > V FC,TH (Note 7)
30 50 120
mA
Gate-Drive Voltage V DRIVE V GATE_ - V IN_ , I GATE_ = 1µA 4.9 5.3 5.6 V
ON COMPARATOR
Low to high 0.85 0.875 0.90 V
ON_ Threshold V ON_,TH
Hysteresis 25 mV
ON_ Propagation Delay 10mV overdrive 10 µs
ON_ Voltage Range V ON_ Without false output inversion V IN V
ON_ Input Bias Current I BON_ V ON_ = V IN 0.03 1 µA
ON_ Pulse Width Low t
UNLATCH
To unlatch after a latched fault 100 µs
DIGITAL OUTPUTS (STAT_)
Output Leakage Current V STAT_
≤ 13.2V 1 µA
Output Voltage Low V OL_ POL = floating (MAX5927), I SINK = 1mA 0.4 V
UNDERVOLTAGE LOCKOUT (UVLO)
UVLO Threshold V UVLO
Startup is initiated when this threshold is
reached by any V
IN_ and V ON_ > 0.9V
(Note 8)
2.25 2.65 V
UVLO Hysteresis V UVLO,HYST 250 mV
UVLO Glitch Filter Reset Time t D, GF V IN < V UVLO maximum pulse width to reset 10 µs
UVLO to Startup Delay t D,UVLO
Time input voltage must exceed V UVLO
before startup is initiated
20 37.5 60 ms
Input Power-Ready Threshold V PWRRDY Any channel, while V IN > V UVLO (Note 9) 0.9 0.95 1.0 V
Input Power-Ready Hysteresis V PWRHYST 50 mV
LOGIC AND TIMING
POL Input Pullup I
POL
POL = GND (MAX5927) 2 4 6 µA
LATCH Input Pullup I LATCH LATCH = GND (MAX5927) 2 4 6 µA
MODE Input Voltage V MODE
MODE floating (default to sequencing
mode)
1.0 1.25 1.5 V
Independent Mode Selection
Threshold
V
INDEP, TH
V
MODE
rising 0.4 V
Tracking Mode Selection
Threshold
V TRACK, TH V MODE rising 2.7 V