MIC2591B-2BTQ TR Micrel Inc, MIC2591B-2BTQ TR Datasheet - Page 16
![IC PCI HOT PLUG CTLR DUAL 48TQFP](/photos/6/84/68454/576-48-tqfp_sml.jpg)
MIC2591B-2BTQ TR
Manufacturer Part Number
MIC2591B-2BTQ TR
Description
IC PCI HOT PLUG CTLR DUAL 48TQFP
Manufacturer
Micrel Inc
Type
Hot-Swap Controllerr
Datasheet
1.MIC2591B-2YTQ.pdf
(34 pages)
Specifications of MIC2591B-2BTQ 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
Contains lead / RoHS non-compliant
Other names
MIC2591B-2BTQTR
MIC2591B-2BTQTR
MIC2591B-2BTQTR
/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
250s
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