Electrical characteristics (continued) – Rainbow Electronics MAX5960 User Manual
Page 3
MAX5959/MAX5960
Quad PCI Express, Hot-Plug Controllers
_______________________________________________________________________________________
3
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
3.3V CONTROL
3.3V Current-Limit Threshold
(V
3.3S_+
- V
3.3S_-
)
V
3.3ILIM
17
20
23
mV
3.3G_ Gate Charge Current
I
3.3G_,CHG
V
3.3G_
= GND
4
5
6
µA
Normal turn-off, ON_ = GND,
V
3.3G_
= 2V
50
150
250
µA
3.3G_ Gate Discharge Current
I
3.3G_, DIS
Output short-circuit condition, strong
gate pulldown to regulation,
V
3.3S
_+ - V
3.3S_-
≥ 1V, V
3.3G_
= 5V
90
150
250
mA
3.3G_ Gate High Voltage
(V
3.3G_
- V
3.3S_+
)
V
3.3G_H
I
SOURCE
= 1µA
4.5
5.5
6.8
V
3.3G_ Threshold Voltage for
PWRGD_ Assertion
V
PGTH3.3
Referred to V
3.3AUXIN
, I
3.3G_
= 1µA
(Note 2)
3
4
4.5
V
3.3S_- Input Bias Current
1
µA
3.3S_+ Input Bias Current
20
60
µA
3.3V AUXILIARY SUPPLY
3.3VAUXIN Supply Input Voltage
Range
V
3.3AUXIN
3.0
3.3
3.6
V
V
3.3VAUXIN
rising
2.50
2.65
2.78
V
3.3VAUXIN Undervoltage
Lockout
V
3.3VAUXUVLO
Hysteresis
30
mV
3.3VAUXIN Supply Current
V
3.3VAUXIN
= 3.6V
2.5
5
mA
I
3.3VAUXO_
= 550mA (MAX5960)
280
3.3VAUXIN to 3.3VAUXO_
Maximum Dropout
I
3.3VAUXO_
= 375mA (MAX5959)
225
mV
MAX5959
376
450
564
3.3VAUXO_ Current-Limit
Threshold
3.3VAUXO_ shorted to
GND
MAX5960
560
700
850
mA
3.3VAUXO_ Threshold for
PWRGD_ Assertion (V3.3VAUXIN
- V3.3VAUXO_)
V
PGTH3.3AUX
(Note 2)
400
mV
LOGIC SIGNALS
Rising edge
1.0
2.0
V
Input-Logic Threshold (ON_,
FON_, AUXON_, PRES-DET_,
INPUT_)
Hysteresis
25
mV
Input Bias Current (ON_,
AUXON_, INPUT_)
1
µA
FON_, PRES-DET_ Internal
25
50
75
k
Ω
ON_, AUXON_ High-to-Low
Deglitch Time
4
µs
ELECTRICAL CHARACTERISTICS (continued)
(V
12VIN
= V
12S_+
= V
12S_-
= 12V, V
3.3S_+
= V
3.3S_-
= V
3.3AUXIN
= V
ON_
= V
AUXON_
= V
FON_
= 3.3V,
PWRGD_ = FAULT_ = PORADJ
= TIM = OUTPUT_ = 12G_ = 3.3G_ = OPEN, INPUT_ =
PRES-DET_ = PGND = GND, T
A
= T
J
= -40°C to +85°C, unless otherwise
noted. Typical values are at T
A
= T
J
= +25°C.) (Note 1)