MIC2593_08 Datasheet, PDF (8/26 Pages) Micrel Semiconductor – Dual-Slot PCI Hot Plug Controller

Micrel, Inc.
MIC2593
Symbol
V_OFF(+12V)
V_OFF(12MV)
V_OFF(AUX)
I_LIM(12V)
I_LIM(12MV)
I_FASTLIM(12V)
I_{FASTLIM(12MV)}
I_AUX(THRESH)
I_SC(TRAN)
I_LIM(AUX)
R_DISCH
R_DISCH(12V)
R_DISCH(12MV)
R_DISCH(3V)
R_DISCH(5V)
R_DISCH(VAUX)
t_OFF(3V)
t_OFF(5V)
T_SC(TRAN)
t_OFF(12V)
t_OFF(12MV)
t_{PROP(3VFAULT)}
Parameter
Off-State Output Offset Voltage
12V_OUT[A/B]
12MV_OUT[A/B]
V_AUX[A/B]
Current Limit Slow-Trip Threshold
+12V MOSFET
–12V MOSFET
Current Limit Fast-Trip Thresholds
+12V MOSFET
–12V MOSFET
Auxiliary Output Current Limit Threshold
Figure 4
Maximum Transient Short Circuit
Current
Regulated Current after Transient
Output Discharge Resistance
12V_OUT[A/B]
12MV_OUT[A/B]
3V_OUT[A/B]
5V_OUT[A/B]
V_AUX[A/B]
Current Limit Response Time for 3.3V
and 5V Outputs, Figure 2
V_AUX Current Limiter Response Time,
Figure 5
12V Current Limit Response Time,
Figure 3
–12V Current Limit Response Time,
Figure 3
Delay from 3V[A/B] overcurrent-limit to
FAULT Output
t_{PROP(5VFAULT)}
Delay from 5V[A/B] overcurrent-limit to
FAULT Output
t_W
ON[A/B], AUXEN[A/B] Pulse Width
t_POR
MIC2593 Power-On Reset Time after
V_STBY becomes valid
SMBus Timing, Note 5
t₁
SCL (Clock) Period
t₂
Data In Set-Up Time to SCL HIGH
Condition
12V_OUT[A/B] = Off, T_J = 125°C
12MV_OUT[A/B] = Off, T_J = 125°C
V_AUX[A/B] = Off, T_J = 125°C
12V_OUT[A/B] = 0V
12MV_OUT[A/B] = 0V
MIC2593-2BTQ
12V_OUT[A/B]
12MV_OUT[A/B]
Current which must be drawn
from V_AUX to register as a fault
V_AUX Enabled, then Grounded
From end of I_SC(TRAN) to C_FILTER
Time Out
12V_OUT[A/B] = 6.0V
12MV_OUT[A/B] = –6.0V
3V_OUT[A/B] = 1.65V
5MV_OUT[A/B] = 2.5V
5V_OUT[A/B] = 1.65V
MIC2593-2
C_GATE = 10nF
V_IN – V_SENSE = 200mV
V_AUX[A/B] = 0V ⁽⁶⁾
12V_OUT[A/B] = 0V ⁽⁶⁾
12MV_OUT[A/B] = 0V ⁽⁶⁾
MIC2593-2
V_SENSE – V_THLIMIT = 200mV
C_FILTER = open
MIC2593-2
V_SENSE – V_THLIMIT = 200mV
C_FILTER = open
Note 5
Note 5
Figure 1
Figure 1
Min
Typ
Max Units
50
mV
–50
mV
50
mV
0.52
1.0
1.5
A
–0.11
–0.2
–0.3
A
1.0
2.15
3.0
A
–0.20 –0.45 –0.6
A
0.84
A
I_MAX = V_STBY / R_DS(AUX)
A
0.375
0.7
1.35
A
1600
Ω
600
Ω
150
Ω
150
Ω
430
Ω
1
µs
33
µs
1
µs
1
µs
1
µs
1
µs
100
ns
500
µs
2.5
µs
100
ns
September 2008
8
M9999-092208