MIC2342 Datasheet, PDF (11/32 Pages) Micrel Semiconductor – Dual-Slot PCI Express® Hot-Plug Controller

Micrel, Inc.
MIC2342/2342R
Symbol
I_LKG(OFF)
R_PULLUP
I_PULLUP
R_DS(AUX)
V_{OFF(12VOUT[A/B]}
V_{OFF(3VOUT[A/B]}
V_{OFF(VAUX[A/B]}
T_OV
I_AUX(THRESH)
I_SC(TRAN)
Parameter
Digital Output Off-State Leakage
Current
/FAULT_AUX[A/B], /INT,
/FAULT_MAIN[A/B],
/PWRGD[A/B], SYSPWRGD
/DLY_PWRGD[A/B]
Internal Pull-up Resistors to
VSTBY[A]
/CRSW[A/B],ON[A/B],
AUXEN[A/B]
Internal Pull-up Current to
VSTBY[A]
/FORCE_ON[A/B]
Internal VAUX[A/B] Power
MOSFET Channel Resistance
12VOUT[A/B] Off-state Output
Offset Voltage
3VOUT[A/B] Off-state Output
Offset Voltage
VAUX[A/B] Off-state Output
Offset Voltage
Overtemperature Shutdown and
Reset Thresholds with
Overcurrent on Slot⁽⁵⁾
Overtemperature Shutdown and
Reset Thresholds, All Other
Conditions (All Outputs will Latch
OFF) ⁽⁵⁾
Auxiliary Output Current Limit
Threshold (Figure 4)
Maximum Transient Short Circuit
Current
Condition
VSTBY[A/B] = +3.3V
VSTBY[A/B] = +3.3V
I_DS = 375 mA; T_J = 100 °C
ON[A/B] = LOW,
12VOUT[A/B] = OFF, T_J = 100 °C
ON[A/B] = LOW,
3VOUT[A/B] = OFF, T_J = 100 °C
AUXEN[A/B] = LOW,
VAUX[A/B] = OFF, T_J = 100 °C
T_J increasing, each slot
T_J decreasing, each slot
T_J increasing, both slots
T_J decreasing, both slots
Current which must be drawn from VAUX
to register as a fault
VAUX[A/B] Enabled, then Grounded
Min Typ Max Units
5
µA
45
kΩ
60
µA
0.4
Ω
50
mV
50
mV
50
mV
140
°C
130
°C
160
°C
150
°C
0.84
A
A
I_LIM(AUX)
RDIS(12V)
RDIS(3V)
RDIS(VAUX)
Regulated Current after Transient From end of I_SC(TRAN) to CFILTER time-out 0.375 0.7 0.975
A
Output Discharge Resistance
12VOUT[A/B]
3VOUT[A/B]
3VAUX[A/B]
12VOUT[A/B] = 6.0V
3VOUT[A/B] = 1.65V
3VAUX[A/B] = 1.65V
160
Ω
0
Ω
150
Ω
430
June 2008
11
M9999-062008-B