MIC2591B Datasheet, PDF (8/34 Pages) Micrel Semiconductor – Dual-Slot PCI Express Hot-Plug Controller

MIC2591B
Electrical Characteristics (continued)⁽⁵⁾
Symbol
Parameter
Condition
C_FILTER Overcurrent DelayTime, Pin 20 grounded through RFILTER[A&B] = 110 kΩ, 1%
SF
C_FILTER Overcurrent Delay
V_12VIN – V_12VSENSE > V_THILIMIT
Scaling Factor
and/or
Delay(ms) = C_FILTER(µF)
× R_FILTER(kΩ) × SF
V_3VIN –V_3VSENSE > V_THILIMIT
V_THILIMIT
Current Limit Threshold Voltages
12V[A/B] supplies
V_12VIN – V_12VSENSE
3.3V[A/B] supplies
V_3VIN – V_3VSENSE
V_THFAST
12VOUT[A/B] and 3VOUT[A/B]
Fast-Trip Threshold Voltages
V_12VIN – V_12VSENSE
V_3VIN – V_3VSENSE
MIC2591B-2BTQ
MIC2591B-3BTQ
MIC2591B-5BTQ
I_{12VSENSE[A/B]}
I_3VSENSE[A/B]
V_IL
12VSENSE[A/B] Input current
3VSENSE[A/B] Input current
LOW-Level Input Voltage
ON[A/B], AUXEN[A/B], GPI_[A0/B0],
/FORCE_ON[A/B]
V_OL
Output LOW Voltage
I_OL = 3mA
/FAULT[A/B], /PWRGD[A/B],
/INT, SDA
V_IH
HIGH-Level Input Voltage
ON[A/B], AUXEN[A/B], GPI_[A0/B0],
/FORCE_ON[A/B], A[0-2], SCL, SDA
R_{PULLUP(A0 - A2)}
I_{LKG,OFF(12VIN[A/B])}
Internal Pull-ups from A[0-2]
to V_STBY[A/B]
12VIN[A/B] Input leakage current
12VIN[A/B] = OFF; 3VIN[A/B] = OFF
V_STBY = VSTBY[A/B] = +3.3V,
I_{LKG,OFF(3VIN[A/B])} 3VIN[A/B] Input leakage current
V_STBY = VSTBY[A/B] = +3.3V,
3VIN[A/B] = OFF; 12VIN[A/B] = OFF
I_IL
Input Leakage Current
SCL, ON[A/B], AUXEN[A/B],
/FORCE_ON[A/B]
I_LKG(OFF)
T_OV
Off-State Leakage Current
/FAULT[A/B], /PWRGD[A/B],
/INT, SDA, GPI_[A0/B0]
Overtemperature Shutdown and Reset
Thresholds, with overcurrent on slot
Overtemperature Shutdown and
Reset Thresholds, all other conditions
(all outputs will latch OFF)
GPI_[A0/B0]: I_LKG for these two pins
measured with V_AUX OFF
T_J
T_J
increasing, each slot⁽⁶⁾
decreasing, each slot⁽⁶⁾
T_J
T_J
increasing, both slots⁽⁶⁾
decreasing, both slots⁽⁶⁾
R_DS(AUX)
Output MOSFET Resistance
VAUX[A/B] MOSFET
I_DS = 375mA, T_J = 125°C
V_OFF(VAUX)
Off-State Output Offset Voltage
V_AUX[A/B]
V_AUX[A/B] = Off, T_J = 125°C
Notes:
5. Specification for packaged product only.
6. Parameters guaranteed by design. Not 100% production tested.
Micrel
Min Typ Max Units
4.4
5
5.6
45
50
55
mV
45
50
55
mV
90
100 110
mV
135 150 165 mV
Disabled
0.35
µA
0.35
µA
–0.5
0.8
V
0.4
V
2.1
3.6
V
40
kΩ
1
µA
1
µA
±5
µA
±5
µA
140
°C
130
°C
160
°C
150
°C
400 mΩ
50
mV
March 2005
8
M9999-033105