MIC2591B MICREL [Micrel Semiconductor], MIC2591B Datasheet - Page 13

• Manufacturer Part Number: MIC2591B
• Description: Dual-Slot PCI Express Hot-Plug Controller
• Manufacturer: MICREL [Micrel Semiconductor]

Typical Characteristics (cont.)
Test Circuit
March 2005
SOFTWARE
CONTROL
SIGNALS
UNDER
5.6
5.4
5.2
5.0
4.8
4.6
4.4
4.4
4.4
0
0
Overcurrent Delay Scaling
Factor vs. Temperature
1
1
0
TEMPERATURE (°C)
20
+12V
10k
+3.3V
R1
30
10k
R2
40
0
0
C
220µF
C
220µF
50
50
5
IN2
IN1
10k
R3
0.047µF
C
6
6
0.1µF
FILTER
0
0.1µF
70
(Additional pins omitted for clarity - Slot A shown only)
VSTBYA
AUXENA
ONA
/FAULTA
CFILTERA
3VINA 3VSENSEA
R
0.010Ω
3VSENSEA
1000
900
800
700
600
500
400
300
200
100
MIC2591B Test Circuit
C
0
0
0
0
0
3VGATE
22nF
Discharge Resistance
Si4410DY
1
1
0
3VGATEA
TEMPERATURE (°C)
vs. Temperature
M1
MIC2591B
20
GND
R5
15Ω
13
30
40
0
0
12VINA 12VSENSEA
50
50
5
12VOUT
R
3VOUT
12VSENSEA
0.025Ω
VAUX
0.1µF
6
6
0
70
12VGATEA
/PWRGDA
12VOUTA
3VOUTA
10nF
VAUXA
C
GS
Si4435BDY
M2
R6
15Ω
C
1µF
LOAD3
+3.3AUXA
400
350
300
250
200
150
100
50
0
0
0
0
0
C
22nF
(R
MILLER
DS(ON)
1
1
V
0
AUX
TEMPERATURE (°C)
20
) vs. Temperature
On-Resistance
30
VSTBY
C
100µF
40
LOAD2
0
0
R4
10k
C
100µF
LOAD1
50
50
5
+12V
+3.3V
M9999-033105
6
6
0
OUTA
OUTA
70