?Semiconductor Components Industries, LLC, 2012
November, 2012 Rev. 2
1
Publication Order Number:
CAT2300/D
CAT2300
SENSEFET
)
Current Monitor
for 0.9 V - 1.5 V Bus
Description
CAT2300 is a controller for SENSEFET
?/DIV>
MOSFET current
monitoring in high-side switch applications.
CAT2300 provides current mirroring and ON/OFF control for
SENSEFET MOSFETs. Exact control and matching of the Sense
output of the SENSEFET with the Kelvin voltage insures accurate
current monitoring over a couple of decades of current.
Designed for use with NTMFS4833NST1G, NTMFS4854NST1G
or similar SENSEFET MOSFETs from ON Semiconductor, CAT2300
is the single chip alternative to discrete circuits for monitoring and
controlling 0.9 V 1.5 V power busses. When teamed with a
SENSEFET, CAT2300 will track currents up to 25 A and resolve
currents below 100 mA.
CAT2300 provides logic level ON/OFF control of the power
MOSFET and its own internal circuitry, reducing power consumption
to virtually zero milliwatts.
Packaged in a space saving low profile 2 x 3 mm TDFN, CAT2300
operates over the full industrial temperature range of 40癈 to +85癈.
Features
" Precision Current Measurement of 0.9 V 1.5 V Power Supply Rails
" ON/OFF Power FET Control with Softstart
" Sense Current Mirroring to 70 mA
(equal to 25 A flowing in the power bus)
" User Adjustable Current to Voltage Conversion Ratio
" 150 mV Typical Matching between Kelvin and Sense Leads
" Less than 1 mA Current Consumption in Shutdown Mode
" This Device is PbFree, Halogen Free/BFR Free and RoHS
Compliant
Typical Applications
" Portable Computers
" Backplane Bus Control
" Power Distribution
Figure 1. System Application
SENSEFET
Power Bus
Enable
System
Load
CAT2300
I
MEASURE
http://onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
ORDERING INFORMATION
PIN CONFIGURATION
TDFN8
VP2 SUFFIX
CASE 511AK
Sense
KS
Kelvin
Gate
1
GND
V
DD
EN
I
MEAS
(Top View)
MARKING DIAGRAM
F3T
= Specific Device Code
L
= Assembly Location Code
AA
= Assembly Lot Number
= (Last Two Digits)
Y
= Production Year (Last Digit)
M
= Production Month (19, O, N, D)
G
= PbFree Microdot
F3T
LAA
YM
G
Device Package
Shipping
ORDERING INFORMATION
CAT2300
TDFN
3,000 / Tape &
Reel
Marking
F3T
For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
发布紧急采购，3分钟左右您将得到回复。
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