ZXCT1009 Zetex Semiconductors, ZXCT1009 Datasheet

no-image

ZXCT1009

Manufacturer Part Number
ZXCT1009
Description
HIGH-SIDE CURRENT MONITOR
Manufacturer
Zetex Semiconductors
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ZXCT1009F-7-90
Manufacturer:
VISHAY
Quantity:
301
Part Number:
ZXCT1009FTA
Manufacturer:
DIODES
Quantity:
36 000
Part Number:
ZXCT1009FTA
Manufacturer:
DIODES
Quantity:
249 000
Part Number:
ZXCT1009FTA
Manufacturer:
DIODES
Quantity:
6 000
Part Number:
ZXCT1009FTA
Manufacturer:
ZETEX
Quantity:
20 000
Company:
Part Number:
ZXCT1009FTA
Quantity:
5 000
Company:
Part Number:
ZXCT1009FTA
Quantity:
70
Company:
Part Number:
ZXCT1009FTA
Quantity:
1 040
Part Number:
ZXCT1009QFTA
Manufacturer:
DIODES/美台
Quantity:
20 000
Part Number:
ZXCT1009T8TA
Manufacturer:
AMD
Quantity:
166
† 8 leaded SOT223
ISSUE 3 - APRIL 2001
HIGH-SIDE CURRENT MONITOR
DESCRIPTION
The ZXCT1009 is a high side current sense monitor.
Using this device eliminates the need to disrupt the
ground plane when sensing a load current.
It takes a high side voltage developed across a current
shunt resistor and translates it into a proportional
output current.
A user defined output resistor scales the output
current into a ground-referenced voltage.
The wide input voltage range of 20V down to as low as
2.5V make it suitable for a range of applications. A
minimum operating current of just 4µA, combined
with its SOT23 package make it a unique solution,
suitable for portable battery equipment.
FEATURES
Low cost, accurate high-side current sensing.
Output voltage scaling.
Up to 2.5V sense voltage.
2.5V – 20V supply range.
4µA quiescent current.
1% typical accuracy.
SOT23 & SM8
packages.
1
APPLICATIONS
APPLICATION CIRCUIT
ORDERING INFORMATION
SM8 due for release May 2001
Sampling April 2001
PART NUMBER
Battery Chargers
Smart Battery Packs
DC Motor control
Over current monitor
Power Management
Level translating
Programmable current source
ZXCT1009T8
ZXCT1009F
V
in
R
ZXCT
1009
sense
PACKAGE
R
SOT23
out
SM8
V
ZXCT1009
out
To Load
PARTMARKING
ZXCT1009
109

Related parts for ZXCT1009

ZXCT1009 Summary of contents

Page 1

... HIGH-SIDE CURRENT MONITOR DESCRIPTION The ZXCT1009 is a high side current sense monitor. Using this device eliminates the need to disrupt the ground plane when sensing a load current. It takes a high side voltage developed across a current shunt resistor and translates it into a proportional output current. ...

Page 2

... ZXCT1009 ABSOLUTE MAXIMUM RATINGS Voltage on any pin Continuous output current Continuous sense voltage Operating Temperature Storage Temperature Package Power Dissipation SOT23 SM8 ELECTRICAL CHARACTERISTICS Test Conditions 5V SYMBOL PARAMETER V V Range Output current out † V Sense Voltage ...

Page 3

... TYPICAL CHARACTERISTICS ISSUE 3 - APRIL 2001 3 ZXCT1009 ...

Page 4

... ZXCT1009 PIN DESCRIPTION Pin Name Pin Function V Supply Voltage in Load Connection to load/battery I Output current, proportional to V out CONNECTION DIAGRAMS SOT23 Package Suffix – F Load out Top View SCHEMATIC DIAGRAM V Load in 100 + - load SM8 Package Suffix – T8 Load N N/C N/C 2 ...

Page 5

... ZXCT1009 sense in load out sense out to give 50mV > V sense sense = 100mV at 1.0A 0.1/1.0 sense sense to give V = 100mV, when V out sense 1 for R gives: out x 0.01) sense R sense ZXCT1009 Load out load V out R out can be selected on specific sense > = ...

Page 6

... R R (min) lim V pk withstood V max I = Peak output current = 40mA pk Char ger The maximum value (max) and the dropout voltage (see transfer out characteristic on page 3) of the ZXCT1009 :- R (max) lim V (min) in Voltage out Voltage 6 To Load R sense ...

Page 7

... An electronic the ayout i s ava www.zetex.com/isense ISSUE 3 - APRIL 2001 ZXCT1009 ZXCT1009 Vout Vout Vin Load GND Actual Size GND Layout shows area of shunt resistor compared to SOT23 package. Not actual size 7 ZXCT1009 Vin Load ...

Page 8

... ZXCT1009 PACKAGE DIMENSIONS SOT23 PACKAGE DIMENSIONS SM8 Zetex plc. Fields New Road, Chadderton, Oldham, OL9-8NP, United Kingdom. Telephone: (44)161 622 4422 (Sales), (44)161 622 4444 (General Enquiries) Fax: (44)161 622 4420 Zetex GmbH Zetex Inc. Streitfeldstraß Mall Drive, Unit 4 D-81673 Mü ...

Related keywords