MIC2342 Datasheet, PDF (9/32 Pages) Micrel Semiconductor – Dual-Slot PCI Express® Hot-Plug Controller

Micrel, Inc.
Absolute Maximum Ratings⁽¹⁾
12VIN[A/B], 12VSENSE[A/B], 12VGATE[A/B],
12VOUT[A/B] .....................................................14V
3VIN[A/B], 3VSENSE[A/B], 3VGATE[A/B],
3VOUT[A/B], VSTBY[A/B], VAUX[A/B] .......................7V
Digital Inputs
ON[A/B], AUXEN[A/B], /CRSW[A/B],
/FORCE_ON[A/B] ..................–0.5V (min) to 3.6V (max)
CFILTER[A/B], RFILTER[A&B] ...................................7V
Output Current
/PWRGD[A/B], /DLY_PWRGD[A/B]
/FAULT_MAIN[A/B], SYSPWRGD, /INT,
/FAULT_AUX[A/B] 10mA
Power Dissipation ................................Internally Limited
Lead Temperature (Soldering)
Lead-Free Package (-xYTQ)
IR Reflow, Peak ..................................260°C +0°C/–5°C
Storage Temperature ...........................–65°C to +150°C
ESD Rating⁽³⁾
Human Body Model ............................................ 2kV
Machine Model .................................................200V
MIC2342/2342R
Operating Ratings⁽²⁾
Supply Voltages
12VIN[A/B].........................................11.0V to 13.0V
3VIN[A/B]...............................................3.0V to 3.6V
VSTBY[A/B]...........................................3.0V to 3.6V
Ambient Temperature (T_A)........................ 0°C to + 70°C
Junction Temperature (T_J) .................................... 125°C
Package Thermal Resistance
TQFP (θ_JA)................................................. 76.8°C/W
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
Power Control and Logic Sections
I_CC12
I_CC3.3
I_CCSTBY
Supply Current
/CRSW[A/B] = LOW
/FORCE_ON[A/B] = HIGH
AUX_EN[A/B], ON[A/B] = [L,H], [L,L]
1.8
3
mA
0.6
2.5
mA
2.8
5
mA
V_UVLO(12V)
V_UVLO(3V)
V_UVLO(STBY)
Undervoltage Lockout Thresholds
12VIN[A/B]
3VIN[A/B]
VSTBY[A/B]
12V_IN[A/B] increasing
3V_IN[A/B] increasing
V_STBY[A/B] increasing
8
9
10
V
2.2
2.5 2.75
V
2.8
2.9
3.0
V
V_HYSSTBY
Undervoltage Lockout Hysteresis
VSTBY[A/B]
50
mV
V_HYSUV
Undervoltage Lockout Hysteresis
12VIN[A/B], 3VIN[A/B]
180
mV
V_UVTH(12V)
V_UVTH(3V)
Power-Good Undervoltage
Thresholds
12VOUT[A/B]
3VOUT[A/B]
12VOUT[A/B] decreasing
3VOUT[A/B] decreasing
10.2 10.5 10.8
V
2.7
2.8
2.9
V
V_UVTH(VAUX)
Power-Good Undervoltage
Threshold
VAUX[A/B]
VAUX[A/B] decreasing
I_AUX = 600mA
2.7
2.8
2.9
V
V_HYSPG
V_GATE(12V)
Power-Good Detect Hysteresis
12VGATE[A/B] Voltage
30
mV
0
1.5
V
I_{GATE(12VSINK)}
I_{GATE(12VPULLUP)}
12VGATE[A/B] Pull-down Current
12VGATE[A/B] Pull-up Current
(Fault Off)
Start Cycle
Any fault condition
(VDD –VGATE) = 2.5V
15
25
35
µA
20
mA
June 2008
9
M9999-062008-A