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PDF XRP2527 Data sheet ( Hoja de datos )
| Número de pieza | XRP2527 | |
| Descripción | Single/Dual Channel Adjustable Current Power Distribution Switch | |
| Fabricantes | Exar | |
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Hay una vista previa y un enlace de descarga de XRP2527 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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July 2011
XRP2527 - XRP2528
Single/Dual Channel Adjustable Current Power
Distribution Switch
Rev. 1.1.0
GENERAL DESCRIPTION
The XRP2527 and XRP2528 devices are
respectively single and dual channel integrated
high-side power distribution switches with
independent enables, fault flags and precise
programmable current limit thresholds. A wide
1.8V to 5.5V input voltage range allows for
operations from industry standard 1.8V, 3.3V
and 5V power rails.
Current limit thresholds can be programmed
accurately and independently for each channel
via an external resistor. A simple setting
optimizes the XRP2527 and XRP2528 for use
in USB 2.0 or 3.0 compliant VBUS power
distribution architectures. These devices can
be used in any self or bus powered USB
applications. The power-switch rise and fall
times are controlled to minimize current
surges during turn on/off.
Built-in over current, under voltage lockout
(UVLO), reverse current and over temperature
protections insure safe operations under
abnormal operating conditions.
XRP2527 and XRP2528 are offered
respectively in RoHS compliant
“green”/halogen free 3mm x 3mm 8-pin and
10-pin TDFN packages.
APPLICATIONS
Generic Power Switching
Self Powered USB 2.0 and 3.0 Hubs
USB Compliant VBUS Power Distribution
Audio-Video Equipments
FEATURES
Single/Dual Channel Current Switch
1A per channel capable
1.8V to 5.5V Input Voltage Range
Programmable Over-Current Limit
300mA to 1A set via external resistor
±8% threshold accuracy at 1A
USB 2.0/3.0 Compliant
Individual Channel Enable
Individual Channel Fault Flag Indicator
Under voltage Lockout, Reverse
Current and Thermal Shutdown
Protection
RoHS Compliant, Green/Halogen Free
8-Pin and 10-Pin TDFN Package
TYPICAL APPLICATION DIAGRAM
Fig. 1: XRP2528 Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
1 page  
XRP2527 - XRP2528
Single/Dual Channel Adjustable Current Power
Distribution Switch
TYPICAL PERFORMANCE CHARACTERISTICS
All data taken at VIN = 5V, CIN = 47µF//1µF, COUT = 10µF, TJ = TA = 25°C, unless otherwise specified - Schematic and BOM
from Application Information section of this datasheet.
Fig. 4: Output On-Resistance vs. Temperature (XRP2527) Fig. 5: Output On-Resistance vs. Temperature (XRP2528)
Fig. 6: Off Supply Current vs. Temperature
Fig. 7: Quiescent Current vs. Temperature
XRP2527 and XRP2528 (1-channel on)
Fig. 8: Quiescent Current vs. Temperature
XRP2528 (2-channels on)
Fig. 9: FLG Logic Low Voltage vs. Temperature
© 2011 Exar Corporation
5/13
Rev. 1.1.0
5 Page 
PACKAGE SPECIFICATION
8-PIN TDFN
XRP2527 - XRP2528
Single/Dual Channel Adjustable Current Power
Distribution Switch
© 2011 Exar Corporation
11/13
Rev. 1.1.0
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet XRP2527.PDF ] | |
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