MIC2592B Datasheet, PDF (12/31 Pages) Micrel Semiconductor – Dual-Slot PCI Express Hot-Plug Controller

MIC2592B
Typical Characteristics (cont.)
Overcurrent Delay Scaling
Factor vs. Temperature
5.6
5.4
5.2
5.0
4.8
4.6
4.40 _{10 20 30 40 50 60 70}
TEMPERATURE (°C)
1000
900
800
700
600
500
400
300
200
100
00
Discharge Resistance
vs. Temperature
3VOUT
VAUX
12VOUT
10 20 30 40 50 60 70
TEMPERATURE (°C)
Micrel
V_AUX On-Resistance
(R_DS(ON)) vs. Temperature
400
350
300
250
200
150
100
50
00 _{10 20 30 40 50 60 70}
TEMPERATURE (°C)
Test Circuit
+12V
+3.3V
C_IN2
220µF
C_IN1
220µF
0.1µF
SIGNALS
UNDER
SOFTWARE
CONTROL
0.1µF
R3
10k
R1 R2
10k 10k
C_FILTER
0.047µF
R_3VSENSEA
0.010Ω
M1
Si4410DY
C_3VGATE
22nF
R5
15Ω
R_12VSENSEA
0.025Ω
C_GS
10nF
M2
Si4435BDY
R6
15Ω
C_MILLER
22nF
0.1µF
3VINA 3VSENSEA 3VGATEA 12VINA 12VSENSEA
VSTBYA
12VGATEA
AUXENA
ONA
MIC2592B
12VOUTA
3VOUTA
/FAULTA
CFILTERA
GND
VAUXA
/PWRGDA
+3.3AUXA
C_LOAD3
1µF
+12V_OUTA
C_LOAD2
100µF
+3.3V_OUTA
C_LOAD1
100µF
VSTBY
R4
10k
(Additional pins omitted for clarity - Slot A shown only)
MIC2592B Test Circuit
March 2005
12
M9999-033105