MIC2593 Datasheet, PDF (9/26 Pages) STMicroelectronics – Dual-Slot PCI Hot Plug Controller

MIC2593
Electrical Characteristics (continued)⁽⁸⁾
Symbol
Parameter
Condition
I_AUX(THRESH) Auxiliary Output Current Limit Threshold Current which must be drawn from V_AUX
Figure 4
to register as a fault
I_SC(TRAN)
I_LIM(AUX)
R_DIS(12V)
R_DIS(12MV)
R_DIS(3V)
R_DIS(5V)
R_DIS(VAUX)
t_OFF(3V)
t_OFF(5V)
t_SC(TRAN)
t_OFF(12V)
t_OFF(12MV)
Maximum Transient Short Circuit Current V_AUX Enabled, then Grounded
Regulated Current after Transient
From end of I_SC(TRAN) to C_FILTER Time Out
Output Discharge Resistance
12VOUT[A/B]
12MVOUT[A/B]
3VOUT[A/B]
5VOUT[A/B]
VAUX[A/B]
12V_OUT[A/B] = 6.0V
12MV_OUT[A/B] = –6.0V
3V_OUT[A/B] = 1.65V
5V_OUT[A/B] = 2.5V
V_AUX[A/B] = 1.65V
Current Limit Response Time
for 3.3V and 5V Outputs, Figure 2
MIC2593-2
C_GATE = 10nF,
V_IN – V_SENSE = 200mV
V_AUX Current Limiter Response Time, V_AUX[A/B] = 0V⁽⁹⁾
Figure 5
12V Current Limit Response,
Figure 3
12V_OUT[A/B] = 0V⁽⁹⁾
–12V Current Limit Response,
Figure 3
12MV_OUT[A/B] = 0V⁽⁹⁾
t_{PROP(3VFAULT)}
Delay from 3V[A/B] Overcurrent Limit MIC2593-2
to FAULT Output
V_SENSE – V_THLIMIT = 200mV
C_FILTER = 0
t_{PROP(5VFAULT)}
Delay from 5V[A/B] Overcurrent Limit MIC2593-2
to FAULT Output
V_SENSE – V_THLIMIT = 200mV
C_FILTER = 0
t_W
ON[A/B], AUXEN[A/B] Pulse Width Note 9
t_POR
MIC2593 Power-On Reset Time
after V_STBY becomes valid
SMBus Timing⁽⁹⁾
Note 9
t₁
SCL (Clock) Period
Figure 1
t₂
Data In Set-Up Time to SCL HIGH Figure 1
t₃
Data Out Stable After SCL LOW
Figure 1
t₄
Data LOW Set-Up Time to
Start Condition, Figure 1
SCL LOW
t₅
Data HIGH Hold Time After
Stop Condition, Figure 1
SCL HIGH
Notes:
8. Specification for packaged product only.
9. Parameters guaranteed by design. Not 100% production tested.
Micrel
Min Typ Max Units
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
300
ns
100
ns
100
ns
April 2004
9
M9999-042204