MIC2590B Micrel Semiconductor, MIC2590B Datasheet - Page 2

• Manufacturer Part Number: MIC2590B
• Description: Dual-Slot PCI Hot Plug Controller
• Manufacturer: Micrel Semiconductor

MIC2590B
Typical Application
MIC2590B
AUXENA/AUXENB
/FAULTA, /FAULTB
Controller
Hot Plug
ONA/ONB
SMBus I/O
SDA
SCL
/INT
Supply
Power
VSTBY
+5.0V
+3.3V
+12V
—12V
2
2
2
20k
1%
12VIN1 12VIN2
VSTBY1
VSTBY2
12SLEWA
12SLEWB
CFILTERA
IREF
CFILTERB
GND
ONA/ONB
AUXENA/AUXENB
/FAULTA, /FAULTB
A0
A1
A2
/INT
SCL
SDA
SDA
SCL
/INT
Management
Controller
MIC2590B
12MVIN1 12MVIN2
12MVOUTA
12MVOUTB
5VGATEA
3VGATEA
5VGATEB
3VGATEB
12VOUTB
12VOUTA
5VSENA
3VSENA
5VSENB
5VOUTB
3VSENB
3VOUTB
5VOUTA
3VOUTA
VAUXA
VAUXB
2
5VINA
3VINA
5VINB
3VINB
C
C
C
1A Schotty Diode
GATE
GATE
GATE
4.7µF
4.7µF
(Clamp)
C
GATE
R
R
R
R
5VGATEA
4.7µF
4.7µF
5VGATEB
3VGATEB
3VGATEA
A
Bus Switch
/OE
R
R
R
R
SENSE
SENSE
SENSE
SENSE
B
PCI Bus
PCI Bus
3.3VAUXA
5V, 5A
3.3V, 7.6A
12V, 0.5A
—12V, 0.1A
5V, 5A
3.3V, 7.6A
12V, 0.5A
—12V, 0.1A
3.3VAUXB
Connector
August 2002
PCI
Micrel