IR3725MTRPBF International Rectifier, IR3725MTRPBF Datasheet - Page 8

• Manufacturer Part Number: IR3725MTRPBF
• Description: IC PWR MONITOR INPUT 12-DFN
• Manufacturer: International Rectifier
• Series: TruePower™r

Specifications of IR3725MTRPBF

• Applications: Power Supply Monitor
• Voltage - Supply: 3.135 V ~ 3.465 V
• Current - Supply: 700µA
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 12-VFDFN Exposed Pad
• Package: 12 Lead DFN
• Bias Supply Voltage: +3.3V +/-5%
• Junction Temperature: 0oC to 125oC
• Pbf: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Input: -
• Other names: IR3725MTRPBFTR

FUNCTIONAL DESCRIPTION
Please refer to the Functional Description Diagram
below. Power flow through the inductor is the product
of output voltage VO times the inductor current I
average voltage V
inductor as a result of current flow I
result in a net current flow imbalance into the VCS
pins that is equal to V
nulling circuit inside the IC sinks enough current to
equalize the voltages of Vcs1 and Vcs2. The current
required to balance the voltages of these two nodes
is reported as a fraction of the current V
256 as the denominator. Current will be reported as
an integer number of counts in two’s compliment
binary format with a range of -256 to 256. Positive
values will be reported when current flow is in the
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DCR
R
DCR
will be developed across the
T
/ (Rcs1 + Rcs2). A voltage
R
p
R
s
12V in
L
. This voltage will
Figure 1 Functional Description Diagram
VDD
IG
VCS1
R
VT
R
R
/ R
www.irf.com
CS1A
th
CS2A
T
using
L
. An
IR3725
L
C
C
I
direction of the current flow arrow in the diagram
below.
The voltage is reported as a positive integer number
of counts equal to (voltage * 256) / V
in the ELECTRICAL SPECIFICATIONS.
Power is reported as an integer number of counts in
two’s compliment binary format with a range of -256
to 256. Positive values will be reported when current
flow is in the direction of the current flow arrow in the
diagram below. Power expressed in counts will be
(power * 256) / (I
+ Rcs2) / (R
product of full-scale voltage and full scale current.
L
CS1
CS2
GND
DCR
T
*DCR). The full scale power P
VCS2
R
R
CS2B
CS1B
FS
VO
EXTCLK
SDA
SCL
ALERT#
ADDR
* V
FS
) where I
FS
equals V
FS
. V
IR3725
Data Sheet
FS
2008_12_09
FS
is defined
IG
is the
*(Rcs1