MIC2591B-2YTQ TR Micrel Inc, MIC2591B-2YTQ TR Datasheet - Page 16

• Manufacturer Part Number: MIC2591B-2YTQ TR
• Description: IC PCI HOT PLUG CTLR DUAL 48TQFP
• Manufacturer: Micrel Inc
• Type: Hot-Swap Controllerr

Specifications of MIC2591B-2YTQ TR

• Applications: General Purpose, PCI Express
• Internal Switch(s): No
• Voltage - Supply: 3.3V, 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: MIC2591B-2YTQTR; MIC2591B-2YTQTR

/FORCE_ON[A/B]
Function Block Diagram
March 2005
12VSENSE[A/B]
3VSENSE[A/B]
RFILTER[A&B]
CFILTER[A/B]
GPI_[A0/B0]
12VIN[A/B]
3VIN[A/B]
GND
* MIC2591B-3BTQ fast threshold is 150mV
MIC2591B-5BTQ fast threshold is disabled
Contact factory for availabilty
100mV*
100mV*
50mV
50mV
V
Overcurrent Detection
STBY(REF)
Current Mirror
I
REF
ON/OFF
ON/OFF
V
RFILTER[A&B]
REF
ON[A/B] AUX[A/B]
DETECTOR
OPEN PIN
UVLO
12V
MIC2591B Block Diagram
Power-on
250s
UVLO
Reset
3V
ON/OFF
DIGITAL CORE/SERIAL INTERFACE
SCL
16
Reference
Bandgap
VSTBY
V
UVLO
SDA
REF
12 Channel, 8-bit
A/D Converter
Logic Circuits
MUX &
VSTBY[A/B]
Overcurrent
Shutdown
A2
VAUX
Thermal
A1
PWRGD
VAUX
VAUX Charge
MOSFET
A0
Pump &
ON/OFF
12VIN[A/B]
3VIN[A/B]
12V
FULL-SCALE
REFERENCE
CURRENT
BIAS
VAUX
40k  3
12VPWRGD
3VPWRGD
V
STBY(REF)
V
V
REF
REF
M9999-033105
12VGATE[A/B]
VAUX[A/B]
3VGATE[A/B]
/PWRGD[A/B]
/FAULT[A/B]
3VOUT[A/B]
12VOUT[A/B]
/INT
IREF