ZXCT1012DAATA ZETEX [Zetex Semiconductors], ZXCT1012DAATA Datasheet

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ZXCT1012DAATA

Manufacturer Part Number
ZXCT1012DAATA
Description
Reduced height micro-power current monitor
Manufacturer
ZETEX [Zetex Semiconductors]
Datasheet
ZXCT1012
Reduced height micro-power current monitor
Description
The ZXCT1012 is a high side current sense
monitor. Using this type of device eliminates
the need to disrupt the ground plane when
sensing a load current.
The ZXCT1012 takes the voltage developed
across a small value resistor and translates it
into a proportional output current. A user
defined output resistor scales the output
current into a ground referenced voltage.
The ZXCT1012 has the accuracy specification of
the ZXCT1010 but in TSOT23-5, and TDFN3x3-5.
Features
Pin connections
Ordering information
Issue 1 - December 2006
© Zetex Semiconductors plc 2006
GND
Device
ZXCT1012DAATA TDFN-5 (3mm x 3mm)
ZXCT1012ET5TA
OUT
NC
OUT
2.5V to 20V supply range
3.5µA quiescent current
Current output - user set gain
Thin package - TSOT23-5 and TDFN3x3-5
Temperature range -40 to 85°C
3
2
1
Pinout - bottom view
Pinout - top view
TSOT23-5
TDFN3x3-5
4
5
SENSE-
SENSE+
SENSE-
SENSE+
TSOT23-5
Package
Status
Active
Active
1
A minimum operating current of just 3.5µA,
combined with its TSOT23-5 package make it
suitable for portable battery equipment where
size and current consumption are critical.
The wide input voltage range down to as low as
2.5V make it suitable for a wide range of
applications requiring direct operation from a
battery.
Applications
Applications circuit
IN
Battery fuel gauge
Battery chargers
Overcurrent monitor
Power management
marking
Device
1012
1012
SENSE+
ZXCT1012
SENSE
Reel size
(inches)
SENSE-
OUT
7
7
OUT
Tape width
OUT
(mm)
8
8
www.zetex.com
Quantity
LOAD
per reel
3000
3000

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ZXCT1012DAATA Summary of contents

Page 1

... OUT 1 5 TDFN3x3-5 Pinout - bottom view Ordering information Device Package ZXCT1012DAATA TDFN-5 (3mm x 3mm) ZXCT1012ET5TA TSOT23-5 Issue 1 - December 2006 © Zetex Semiconductors plc 2006 A minimum operating current of just 3.5µA, combined with its TSOT23-5 package make it suitable for portable battery equipment where size and current consumption are critical ...

Page 2

Pin information Pin Name TDFN5 TSOT23 N GND 1 3 OUT 5 4 SENSE+ This pin should be connected to the rail whose current is being 4 5 SENSE- This is the negative input of the ...

Page 3

Recommended operating conditions Symbol Recommended parameter V Sense+ range IN T Ambient temperature range differential A V Sense voltage SENSE V Output voltage swing OUT Electrical characteristics Test conditions T = 25°C, V amb Symbol Parameter I Output current OUT ...

Page 4

Typical characteristics 2% 0% -2% -4% -6% Issue 1 - December 2006 © Zetex Semiconductors plc 2006 4 ZXCT1012 www.zetex.com ...

Page 5

Applications information The ZXCT1012 current monitor works by converting the voltage developed across a small sense resistor into a current on the out pin. In reality voltage to current converter. This output current can be converted into ...

Page 6

The following lines describe how to scale a load current to an output voltage SENSE SENSE LOAD I = 10mA OUT SENSE OUT OUT OUT Design example In ...

Page 7

Power dissipation The maximum allowable power dissipation of the device for normal operation (P function of the package junction to ambient thermal resistance ( temperature (T ), and ambient temperature (T JMAX – MAX ...

Page 8

Package outline - TSOT23-5 DIM Min 0.01 A2 0.84 b 0. 0.30 L2 a° 4° Note: Controlling dimensions are in millimeters. Approximate dimensions are provided in inches Issue 1 - ...

Page 9

DAA package outline - TDFN3x3-5 E Dim. Millimeters Min. Max. A 0.70 0.80 A1 0.00 0.05 A3 0.20REF b 0.30 0.45 D 3.00BSC D2 1.85 2.10 Note: Controlling dimensions are in millimeters. Approximate dimensions are provided in inches Issue 1 ...

Page 10

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 The ...

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