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Numéro de référence | IR3725 | ||
Description | Input Power Monitor IC | ||
Fabricant | International Rectifier | ||
Logo | |||
1 Page
FEATURESwww.datasheet4u.com
Accurate power, current, or voltage reporting
1.5 % maximum power error
1.0 % maximum current error
Serial digital interface
SMBus and I2C compatible
Programmable averaging interval
Flexible current sensing
Resistive or Inductor DCR
Applications
Synchronous rectified buck converters
Multiphase converters
12pin 3x4 DFN lead free
RoHS Compliant
IR3725
Data Sheet
INPUT POWER MONITOR
WITH DIGITAL INTERFACE
DESCRIPTION
The IR3725 is a highly configurable power monitor IC
that uses proprietary digital technology to measure a
12V rail current, its voltage, or its average power over a
user specified time interval. Configuration and result
reporting are managed through a serial digital interface.
The current is measured as a voltage across a shunt
resistance, an input inductor, or a copper trace
resistance.
The real time voltage and current signals are multiplied,
digitized, and averaged over a user selectable
averaging interval providing TruePower™ measurement
of highly dynamic loads.
TYPICAL APPLICATION CIRCUIT
+12V
L DCR
CCS1
CCS2
+12V Return
Input
Capacitors
Buck Regulators
3.3V
VDD
IR3725 I2C
VO ALERT#
VCS2
VT
VCS1 ADDR
GND
To system
Controller
2
RT 0.1 uF
ORDERING INFORMATION
Device
IR3725MTRPBF
IR3725MPBF
Package
12 lead DFN (4x3 mm body)
12 lead DFN (4x3 mm body)
Order Quantity
3000 piece reel
Sample Quantity
Page 1 of 19
www.irf.com
2008_12_09
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Pages | Pages 19 | ||
Télécharger | [ IR3725 ] |
No | Description détaillée | Fabricant |
IR3720 | Power Monitor IC | International Rectifier |
IR3721 | Power Monitor IC | International Rectifier |
IR3725 | Input Power Monitor IC | International Rectifier |
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