TSC888 STMicroelectronics, TSC888 Datasheet

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TSC888

Manufacturer Part Number
TSC888
Description
Low cost high-side current sense amplifier
Manufacturer
STMicroelectronics
Datasheet

Specifications of TSC888

Wide Common-mode Operating Range
2.8 V to 24 V
Wide Supply Voltage Range
4 to 24 V
Low Current Consumption
ICC max = 1 mA
Internally Fixed Gain
20 V/V, 50 V/V or 100 V/V

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Features
Applications
Description
The TSC888 measures a small differential voltage
on a high-side shunt resistor and translates it into
a ground-referenced output voltage. The gain is
internally fixed.
Wide input common-mode voltage range, low
quiescent current, and tiny SOT23-5 packaging
make the TSC888 ideal for use in a wide variety
of applications.
Input common-mode and power supply voltages
are independent. Common-mode voltage can
range from 2.8 V to 24 V in operating conditions.
Current consumption lower than 1 mA and wide
supply voltage range allow to connect the power
supply to either side of the current measurement
shunt with minimal error.
June 2008
Independent supply and input common-mode
voltages
Wide common-mode operating range: 2.8 V to
24 V
Wide supply voltage range: 4 to 24 V
Low current consumption: I
Internally fixed gain: 20 V/V, 50 V/V or 100 V/V
Buffered output
Desktop computers and servers SMPS
Photovoltaic/solar systems
Battery chargers
Notebook computers
DC motor control
CC
max = 1 mA
Low cost high-side current sense amplifier
Rev 1
Gnd
Out
Vp
1
2
3
Pin connections
(Plastic package)
(top view)
SOT23-5
L
TSC888
5
4
Vcc
Vm
www.st.com
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TSC888 Summary of contents

Page 1

... The gain is internally fixed. Wide input common-mode voltage range, low quiescent current, and tiny SOT23-5 packaging make the TSC888 ideal for use in a wide variety of applications. Input common-mode and power supply voltages are independent. Common-mode voltage can range from 2 operating conditions. ...

Page 2

... The main advantage of this feature is to allow high-side current sensing at voltages much greater than the supply voltage (V TSC888 can therefore be supplied Vsb line and monitor a 3 power line. Considering the wide supply voltage operating range ( another option available in most cases is to connect the V Figure 1 ...

Page 3

... TSC888 2 Absolute maximum ratings and operating conditions Table 2. Absolute maximum ratings Symbol V Input pins differential voltage ( Input pin voltages ( supply voltage output pin voltage out T Storage temperature stg T Maximum junction temperature j R SOT23-5 thermal resistance junction to ambient ...

Page 4

... TSC888C OUT connected to V GND V =1V sense I =1mA out V =-1V sense I =1mA out =12V, no load on Out m Min. Typ. Max. 1 Min. Typ. Max 5.5 8 Min. Typ. Max 100 ± 0 100 TSC888 Unit mA Unit dB dB µA µA Unit V ...

Page 5

... TSC888 4 Package information In order to meet environmental requirements, STMicroelectronics offers these devices in ® ECOPACK packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label ...

Page 6

... Ordering information 5 Ordering information Table 8. Order codes Order code Temperature range TSC888AILT TSC888BILT -40°C, +85°C TSC888CILT 6 Revision history Table 9. Document revision history Date Revision 26-Jun-2008 Rev 1 Initial release. 6/7 Package Packaging SOT23-5 Tape & reel Changes TSC888 Marking Gain O111 20 O112 50 O113 100 ...

Page 7

... TSC888 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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