MIC2590B-2YTQ Micrel Inc, MIC2590B-2YTQ Datasheet - Page 3

• Manufacturer Part Number: MIC2590B-2YTQ
• Description: IC PCI HOT PLUG CTLR DUAL 48TQFP
• Manufacturer: Micrel Inc
• Type: Hot-Swap Controllerr

Specifications of MIC2590B-2YTQ

• Applications: PCI, PCI-X
• Internal Switch(s): No
• Voltage - Supply: 3.3V, 5V, ±12V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-2201; MIC2590B-2YTQ

Pin Configuration
Pin Description
Micrel, Inc.
September 2008
Pin Number
12, 25
17, 18
10, 27
19, 20
6, 31
5, 32
3, 34
12MVOUTA, 12MVOUTB
12VSLEWA, 12VSLEWB
12VOUTA, 12VOUTB
12VMIN – 2 pins
12VIN – 2 pins
5VINA, 5VINB
3VINA, 3VINB
Pin Name
Pin Function
5V Supply Power and Sense Inputs [A/B]: Two pins are provided for Kelvin
connection (one for each slot). Pin 6 is the Kelvin sense connection to the
supply side of the sense resistor for 5V Slot A. Pin 31 is the Kelvin sense
connection to the supply side of the sense resistor for 5V Slot B. These two pins
must ultimately connect to each other within 10cm. An undervoltage lockout
circuit (UVLO) prevents the switches from turning on while this input is less than
its lockout threshold.
3.3V Supply Power and Sense Inputs [A/B]: Two pins are provided for Kelvin
connection (one for each slot). Pin 12 is the Kelvin sense connection to the
supply side of the sense resistor for 3V Slot A. Pin 25 is the Kelvin sense
connection to the supply side of the sense resistor for 3V Slot B. These two pins
must ultimately connect to each other within 10cm. An undervoltage lockout
circuit (UVLO) prevents the switches from turning on while this input is less than
its lockout threshold.
+12V Supply Input: An undervoltage lockout circuit prevents the switches from
turning on while this input is less than its lockout threshold. Both pins must be
tied together at the chip.
–12V Supply Input: An undervoltage lockout circuit prevents the switches from
turning on while this input is less than its lockout threshold. Both pins must be
tied together at the chip.
12V output [A/B]
–12V output [A/B]
12V Slew Rate Control [A/B]: Connect capacitors between these pins and
ground to set output slew rates of the +12V and -12V supplies.
48-Pin TQFP (TQ)
3
M9999-091808
MIC2590B