MIC2342 Datasheet, PDF (10/32 Pages) Micrel Semiconductor – Dual-Slot PCI Express® Hot-Plug Controller

Micrel, Inc.
MIC2342/2342R
DC Electrical Characteristics⁽⁴⁾
12V_IN[A/B] = 12V, 3V_IN[A/B] = 3.3V, V_STBY[A/B] = 3.3V, T_A = 25°C, unless otherwise noted. Bold values specifications applies
over the full operating temperature range from 0°C < T_A < +70°C.
Symbol
Parameter
Condition
Min Typ Max Units
V_GATE(3V)
3VGATE[A/B] Voltage
12VIN
–1.5
12VIN V
I_{GATE(3VCHARGE)} 3VGATE[A/B] Charge Current
Start Cycle
15
25
35
µA
I_GATE(3VSINK)
3VGATE[A/B] Pull-down Current
(Fault Off)
Any fault condition
V_3VGATE = 2.5V
65
mA
V_FILTER
CFILTER[A/B] Threshold Voltage
1.20 1.25 1.30
V
I_FILTER
CFILTER[A/B] Charging Current
V_12VIN – V_12VSENSE > V_THILIMIT
and/or
1.80 2.5
5.0
µA
V_3VIN – V_3VSENSE > V_THILIMIT
V_THLIMIT
Current Limit Threshold Voltages
12VIN[A/B] Supplies
3VIN[A/B] Supplies
V_12VIN – V_12VSENSE
V_3VIN – V_3VSENSE
45
50
57
mV
45
50
57
mV
V_THFAST
12VOUT[A/B] & 3VOUT[A/B]
Fast-Trip Threshold Voltages
V_12VIN – V_12VSENSE
V_3VIN – V_3VSENSE
MIC2342-2YTQ Only
90
100
110
mV
V_THFAST
12VOUT[A/B] & 3VOUT[A/B]
Fast-Trip Threshold Voltages
V_12VIN – V_12VSENSE
MIC2342-2YTQ
90
100
110
mV
V_3VIN – V_3VSENSE
MIC2342-3YTQ
135 150
165
mV
MIC2342-5YTQ
Dis-
abled
I_{12VSENSE[A/B]}
I_3VSENSE[A/B]
12VSENSE[A/B] Input Current
3VSENSE[A/B] Input Current
0.35
1
µA
0.35
1
µA
I_{LKG,OFF(12VIN[A/B]} 12VIN[A/B] Input Leakage Current VSTBY = VSTBY[A/B] = +3.3V;
12VIN[A/B] = OFF; 3VIN[A/B] = OFF
1
µA
I_{LKG,OFF(3VIN[A/B]}
3VIN[A/B] Input Leakage Current
VSTBY = VSTBY[A/B] = +3.3V;
12VIN[A/B] = OFF; 3VIN[A/B] = OFF
1
µA
V_IL
LOW-Level Digital Input Voltage
ON[A/B], AUXEN[A/B],
/CRSW[A/B],
/FORCE_ON[A/B]
0.8
V
V_IH
HIGH-Level Digital Input Voltage
ON[A/B], AUXEN[A/B],
/CRSW[A/B],
/FORCE_ON[A/B]
2.1
3.6
V
V_OL
LOW-Level Digital Output Voltage I_OL = 3 mA
/FAULT_AUX[A/B], /INT,
/FAULT_MAIN[A/B],
/PWRGD[A/B] ,SYSPWRGD,
/DLY_PWRGD
0.4
V
June 2008
10
M9999-062008-B