STEVAL-ISQ007V1 STMicroelectronics, STEVAL-ISQ007V1 Datasheet

BOARD EVAL BASED ON TSC101

STEVAL-ISQ007V1

Manufacturer Part Number
STEVAL-ISQ007V1
Description
BOARD EVAL BASED ON TSC101
Manufacturer
STMicroelectronics
Type
Other Power Managementr
Datasheets

Specifications of STEVAL-ISQ007V1

Channels Per Ic
1 - Single
Amplifier Type
Current Sense
Output Type
Single-Ended
Slew Rate
0.9 V/µs
-3db Bandwidth
450kHz
Current - Output / Channel
60mA
Operating Temperature
-40°C ~ 125°C
Current - Supply (main Ic)
165µA
Voltage - Supply, Single/dual (±)
4 V ~ 24 V
Board Type
Fully Populated
Utilized Ic / Part
TSC101
Input Voltage
4 V to 24 V
Product
Power Management Modules
Silicon Manufacturer
ST Micro
Silicon Core Number
TSC101
Kit Application Type
Amplifier
Application Sub Type
Current-Sense Amplifier
Kit Contents
Board
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
TSC101
Other names
497-8339

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
STEVAL-ISQ007V1
Manufacturer:
STMicroelectronics
Quantity:
1
Features
Applications
Description
The TSC101 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 packaging
enable use in a wide variety of applications.
March 2011
Independent supply and input common-mode
voltages
Wide common-mode operating range:
2.8 to 30 V
Wide common-mode surviving range:
-0.3 to 60 V (load-dump)
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
Automotive current monitoring
Notebook computers
DC motor controls
Photovoltaic systems
Battery chargers
Precision current sources
CC
max = 300 µA
Doc ID 13313 Rev 3
High side current sense amplifier
The input common-mode and power supply
voltages are independent. The common-mode
voltage can range from 2.8 to 30 V in operating
conditions and up to 60 V in absolute maximum
rating conditions.
The current consumption below 300 µA and the
wide supply voltage range enable the power
supply to be connected to either side of the
current measurement shunt with minimal error.
Gnd
Out
Vp
1
2
3
Pin connections
(Plastic package)
(top view)
SOT23-5
L
5
4
TSC101
Vcc
Vm
www.st.com
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STEVAL-ISQ007V1 Summary of contents

Page 1

Features ■ Independent supply and input common-mode voltages ■ Wide common-mode operating range: 2 ■ Wide common-mode surviving range: -0 (load-dump) ■ Wide supply voltage range ■ Low current consumption: ...

Page 2

Application schematics and pin description 1 Application schematics and pin description The TSC101 high-side current sense amplifier features a 2 input common-mode range that is independent of the supply voltage. The main advantage of this feature is ...

Page 3

TSC101 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 ...

Page 4

Electrical characteristics 3 Electrical characteristics (1) Table 4. Supply Symbol Parameter I Total supply current CC 1. Unless otherwise specified, the test conditions are T on Out. (1) Table 5. Input Symbol Parameter Common mode rejection CMR Variation of V ...

Page 5

TSC101 (1) Table 6. Output Symbol Parameter Av Gain ΔAv Gain accuracy ΔV /ΔT Output voltage drift vs. T out ΔV /ΔI Output stage load regulation out out ΔV Total output voltage accuracy out ΔV Total output voltage accuracy out ...

Page 6

Electrical characteristics Table 7. Frequency response Symbol Parameter ts Output settling to 1% final value SR Slew rate BW 3dB bandwidth 1. Unless otherwise specified, the test conditions are T on Out. 2. For stability purposes not recommend ...

Page 7

TSC101 3.1 Electrical characteristics curves For the following curves, the tested device is a TSC101C, and the test conditions are T = 25°C, V amb CC otherwise specified. Figure 2. Supply current vs. supply voltage ( sense ...

Page 8

Electrical characteristics Figure 6. Minimum common mode operating voltage vs. temperature Figure 8. Output stage high-state saturation voltage versus output current ( sense 8/18 Figure 7. Output stage low-state saturation voltage versus output current (V sense Figure ...

Page 9

TSC101 Figure 10. Output short-circuit sink current versus temperature (Out pin connected Figure 12. Input offset drift versus temperature Figure 14. Bode diagram (V Figure 11. Output stage load regulation ) Figure 13. Output voltage drift versus ...

Page 10

Electrical characteristics Figure 16. Total output voltage accuracy versus V sense Figure 18. Output voltage versus V for low V values) sense 10/18 Figure 17. Output voltage versus V (detail Figure 19. Step response sense Doc ID 13313 Rev 3 ...

Page 11

TSC101 4 Parameter definitions 4.1 Common mode rejection ratio (CMR) The common-mode rejection ratio (CMR) measures the ability of the current-sensing amplifier to reject any DC voltage applied on both inputs V back to the input so that its effect ...

Page 12

Parameter definitions Figure 20. V out 4.4 Output voltage drift versus temperature The output voltage drift versus temperature is defined as the maximum variation of V respect to its value at 25°C, over the temperature range calculated as ...

Page 13

TSC101 4.5 Output voltage accuracy The output voltage accuracy is the difference between the actual output voltage and the theoretical output voltage. Ideally, the current sensing output voltage should be equal to the input differential voltage multiplied by the theoretical ...

Page 14

Application information 5 Application information The TSC101 can be used to measure current and to feed back the information to a microcontroller, as shown in Figure 23. Typical application schematic The current from the supply flows to the load through ...

Page 15

TSC101 6 Package information In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ® ...

Page 16

Ordering information 7 Ordering information Table 10. Order codes Temperature Part number range TSC101AILT TSC101BILT -40°C, +125°C TSC101CILT (1) TSC101AIYLT (1) TSC101BIYLT -40°C, +125°C (1) TSC101CIYLT 1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening ...

Page 17

TSC101 8 Revision history Table 11. Document revision history Date 05-Mar-2007 22-Oct-2007 14-Mar-2011 Revision 1 First release, preliminary data. Document status promoted from preliminary data to datasheet. 2 Added test results in electrical characteristics tables. Added electrical characteristics curves. Added ...

Page 18

... 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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