ZXCT1009FTA Diodes Zetex, ZXCT1009FTA Datasheet

IC CURRENT MONITOR 1% SOT23-3

ZXCT1009FTA

Manufacturer Part Number
ZXCT1009FTA
Description
IC CURRENT MONITOR 1% SOT23-3
Manufacturer
Diodes Zetex
Datasheets

Specifications of ZXCT1009FTA

Function
Current Monitor
Sensing Method
High-Side
Accuracy
±1%
Voltage - Input
2.5 ~ 20 V
Current - Output
10.2mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
ZXCT1009FTR

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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 4 A, combined with
its SOT23 package make it a unique solution for
portable battery equipment.
FEATURES
ISSUE 10 - JULY 2007
ORDERING INFORMATION
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 and SM8 packages
ZXCT1009T8TA
ZXCT1009FTA
DEVICE
REEL
SIZE
7”
7”
WIDTH
12mm
TAPE
8mm
QUANTITY PER
3,000 units
1,000 units
REEL
1
APPLICATIONS
APPLICATION CIRCUIT
Battery chargers
Smart battery packs
DC motor control
Over current monitor
Power management
Level translating
Programmable current source
PARTMARKING
ZXCT1009
109
PACKAGE
SOT23
S E M I C O N D U C T O R S
SM8
ZXCT1009

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ZXCT1009FTA Summary of contents

Page 1

... Up to 2.5V sense voltage 2.5V – 20V supply range 4µA quiescent current 1% typical accuracy SOT23 and SM8 packages ORDERING INFORMATION DEVICE REEL TAPE SIZE WIDTH ZXCT1009FTA 7” 8mm ZXCT1009T8TA 7” 12mm ISSUE 10 - JULY 2007 APPLICATIONS Battery chargers Smart battery packs DC motor control ...

Page 2

ZXCT1009 ABSOLUTE MAXIMUM RATINGS Voltage on any pin Continuous output current OUT † Continuous sense voltage, V SENSE Operating temperature Storage temperature Package power dissipation SOT23 SM8 Operation above the absolute maximum rating may cause ...

Page 3

Tamb = 25° OUT 1m 100µ 10µ 100µ 1m 10m V (V) SENSE Typical Output v Sense Voltage 10.2 10.0 9.8 9.6 9.4 -40 - Temperature (°C) Output ...

Page 4

ZXCT1009 TYPICAL CHARACTERISTICS (Cont.) PIN DESCRIPTION Pin Name Pin Function V Supply voltage sense+ V Connection to load/battery sense- I Output current, proportional to V out CONNECTION DIAGRAMS SOT23 Package Suffix – F Top View ...

Page 5

POWER DISSIPATION The maximum allowable power dissipation of the device for normal operation (Pmax function of the package junction to ambient thermal resistance ( ja), maximum junction temperature (Tjmax), and ambient temperature (Tamb), according to the expression: P ...

Page 6

ZXCT1009 APPLICATIONS INFORMATION (Continued) Charger input FZT789A FMMT3904 ZHCS100 V in FMMD914 5V bq2954 MOD pin FMMT451 I out SNS pin Support components omitted for clarity Li-Ion Charger Circuit The above figure shows the ZXCT1009 supporting the Benchmarq bq2954 Charge ...

Page 7

APPLICATIONS INFORMATION (Continued) PCB trace shunt resistor for low cost solution The figure below shows output characteristics of the device when using a PCB resistive trace for a low cost solution in replacement for a conventional shunt resistor. The graph ...

Page 8

ZXCT1009 Definitions Product change Zetex Semiconductors reserves the right to alter, without notice, specifications, design, price or conditions of supply of any product or service. Customers are solely responsible for obtaining the latest relevant information before placing orders. Applications disclaimer ...

Page 9

PACKAGE DIMENSIONS SOT23 PACKAGE DIMENSIONS SM8 © Zetex Semiconductors plc 2007 Europe Americas Zetex GmbH Zetex Inc Kustermann-Park 700 Veterans Memorial Hwy Balanstraße 59 Hauppauge, NY 11788 D-81541 München USA Germany Telefon: (49 Telephone: (1) ...

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