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PDF PI2122 Data sheet ( Hoja de datos )
| Número de pieza | PI2122 | |
| Descripción | 12Amp Active ORing Solution | |
| Fabricantes | Vicor Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PI2122 (archivo pdf) en la parte inferior de esta página. Total 19 Páginas | ||
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PI2122
Cool-ORing Series
12Amp Active ORing Solution With Load Disconnect
Description
The Cool-ORing PI2122 is a complete full-function
Active ORing solution with a high-speed ORing
MOSFET controller and a very low on-state
resistance Dual MOSFETs designed for use in
redundant power system architectures. The PI2122
Cool-ORing solution is offered in an extremely small,
thermally enhanced LGA package and can be used
in low voltage (≤ 5Vbus) high side Active ORing
applications. The PI2122 enables extremely low
power loss with fast dynamic response to fault
conditions, critical for high availability systems. The
PI2122 provide true bi-directional switch capabilities
to protect against both power source and load fault
conditions.
A load short circuit detection feature allows user
definition of a short condition enabling minimum duty
cycle into a short. The PI2122 has the added benefit
of being able to protect against output load fault
conditions that may induce excessive forward
current and device over-temperature by turning off
the back-to-back MOSFETs with an auto-retry
programmable off-time. The back-to-back MOSFETs
drain-to-drain voltage is monitored to detect normal
forward, excessive forward, light load and reverse
current flow. The status is reported via an active low
www.DaftaaSuhlteeftl4aUg.coomutput. A temperature sensing function
turns off the MOSFETs and indicates a fault if the
controller junction temperature exceeds 145°C.
Typical Application:
Features
• Integrated High Performance 12A, 6mΩ back-to-
back MOSFET
• Very-small, high density fully-optimized solution
providing simple PCB layout.
• Fast Dynamic Response, with 140ns reverse &
170ns forward over-current turn-off delay time
• Accurate sensing capability to indicate system
fault conditions
• Programmable under & over-voltage functions
• Over temperature shutdown
• Programmable over-current off time
• Programmable short circuit load detection
• Active low fault flag output
Applications
• N+1 Redundant Power Systems
• Servers & High End Computing
• High-side Active ORing
• High current Active ORing ( ≤ 5Vbus)
• MicroTCA
Package
• 5mm x 7mm 17-pin Thermally Enhanced LGA
Package
Figure 1: PI2122 High Side Active ORing
Picor Corporation • picorpower.com
Figure 1: PI2122 input current de-rating based on
PI2122
Rev1.0
Page 1 of 19
1 page  
Electrical Specifications
Unless otherwise specified: -40°C < TJ < 125°C, VC =12V, CVc = 1uF, COCT = 2nF
Parameter
Symbol Min Typ Max Units
Conditions
SCD
SCD bias current
SCD threshold voltage high
SCD threshold voltage low
SCD Hysteresis
Iscd
VThSCDR
VThSCDF
VThSCDR -
VThSCDF
-1
300
25
340
310
50
1
380
75
μA VSCD=0V
mV VSP-SN=20mV
mV
mV VSP-SN=20mV
Note 1: These parameters are not production tested but are guaranteed by design, characterization and
correlation with statistical process control.
Note 2: Current sourced by a pin is reported with a negative sign.
Note 3: Thermal resistance characterized on PI2122-EVAL1 evaluation board with 0 LFM airflow.
Note 4: Refer to the Auxiliary Power Supply section in the Application Information section for details on the VC
requirement to fully enhance the internal MOSFET.
www.DataSheet4U.com
Picor Corporation • picorpower.com
PI2122
Rev1.0
Page 5 of 19
5 Page 
Typical Characteristics:
Figure 9: FOC comparator threshold vs. temperature.
VCM: Common Mode Voltage.
Figure 10: Reverse comparator threshold vs. temperature.
VCM: Common Mode Voltage.
Figure 11: Controller bias current vs. temperature.
www.DataSheet4U.com
Figure 12: Reverse condition turn-off delay time vs.
temperature.
Figure 13: Internal MOSFETs on-state resistance vs.
temperature.
Figure 14: Internal MOSFETs drain to source
breakdown voltage vs. temperature.
Picor Corporation • picorpower.com
PI2122
Rev1.0
Page 11 of 19
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet PI2122.PDF ] | |
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