TSC101BILT STMicroelectronics, TSC101BILT Datasheet

IC AMP HISIDE CURR SENSE SOT23-5

TSC101BILT

Manufacturer Part Number
TSC101BILT
Description
IC AMP HISIDE CURR SENSE SOT23-5
Manufacturer
STMicroelectronics
Datasheets

Specifications of TSC101BILT

Mfg Application Notes
TSC101 AppNote
Amplifier Type
Current Sense
Number Of Circuits
1
Slew Rate
0.9 V/µs
-3db Bandwidth
670kHz
Current - Input Bias
5.5µA
Voltage - Input Offset
200µV
Current - Supply
165µA
Current - Output / Channel
60mA
Voltage - Supply, Single/dual (±)
4 V ~ 24 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Number Of Channels
Single
Common Mode Rejection Ratio (min)
90 dB
Available Set Gain
33.98 dB (Typ)
Input Offset Voltage
1.5 mV
Input Bias Current (max)
8 uA
Operating Supply Voltage
5 V, 9 V, 12 V, 15 V, 18 V
Supply Current
0.3 mA
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Supply Voltage (max)
24 V
Supply Voltage (min)
4 V
No. Of Amplifiers
1
Input Bias Current
8µA
Output Current Per Channel
60mA
Gain Db Max
50dB
Bandwidth
500kHz
Cmrr
105dB
Supply Voltage Range
4V
Rohs Compliant
Yes
For Use With
497-8339 - BOARD EVAL BASED ON TSC101
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
Gain Bandwidth Product
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-6946-2
TSC101BILT

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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.
Input common-mode and power supply voltages
are independent. Common-mode voltage can
range from 2.8V to 30V in operating conditions
and up to 60V in absolute maximum ratings.
Current consumption lower than 300µA and wide
supply voltage range allow to connect the power
supply to either side of the current measurement
shunt with minimal error.
October 2007
Independent supply and input common-mode
voltages
Wide common-mode operating range:
2.8 to 30V
Wide common-mode surviving range:
-0.3 to 60V (load-dump)
Wide supply voltage range: 4 to 24V
Low current consumption: I
Internally fixed gain: 20V/V, 50V/V or 100V/V
Buffered output
Automotive current monitoring
Notebook computers
DC motor control
Photovoltaic systems
Battery chargers
Precision current sources
CC
max = 300µA
Rev 2
High side current sense amplifier
Gnd
Out
Vp
1
2
3
(Plastic package)
Pin connections
(top view)
SOT23-5
L
TSC101
5
4
Vcc
Vm
www.st.com
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TSC101BILT Summary of contents

Page 1

Features ■ Independent supply and input common-mode voltages ■ Wide common-mode operating range: 2.8 to 30V ■ Wide common-mode surviving range: -0.3 to 60V (load-dump) ■ Wide supply voltage range 24V ■ Low current consumption: I ■ Internally ...

Page 2

Application schematics and pin description 1 Application schematics and pin description The TSC101 high-side current-sense amplifier features a 2.8V to 30V input common-mode range that is independent of supply voltage. The main advantage of this feature is to allow high-side ...

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 (1) Table 5. Input Symbol Parameter Common mode rejection CMR Variation of V versus 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 (1) Table 8. Noise Symbol Parameter Total output voltage noise ...

Page 7

TSC101 Figure 2. Supply current vs. supply voltage (V = 0V) sense 260 240 220 T=25°C 200 180 160 140 120 100 (V) CC Figure 4. V pin input bias current vs ...

Page 8

Electrical characteristics Figure 7. Output stage low-state saturation voltage versus output current (V = -1V) sense 400 output stage 350 sourcing current 300 250 200 T=25°C 150 100 -50 I (mA) out Figure 9. Output ...

Page 9

TSC101 Figure 12. Input offset drift versus temperature 300 200 100 0 -50 - -100 -200 -300 -400 -500 T (°C) Figure 14. Bode diagram ( TSC101C 10 TSC101B 0 TSC101A -10 -20 ...

Page 10

Electrical characteristics Figure 17. Output voltage versus TSC101B 2 TSC101C 0 -100 0 100 200 300 V (mV) sense Figure 19. Step response TSC101C TSC101B TSC101A 10/17 Figure 18. Output voltage versus V sense ...

Page 11

TSC101 4 Parameter definitions 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 can ...

Page 12

Parameter definitions Figure 20. V out 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 follows: ...

Page 13

TSC101 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 gain, ...

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 2.8V to 30V Rg3 Gnd The current from the supply ...

Page 15

... JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an STMicroelectronics trademark. ECOPACK specifications are available at: www.st.com. Figure 24. SOT23-5 package Ref ...

Page 16

... Ordering information 7 Ordering information Table 9. Order codes Temperature Part number range TSC101AILT TSC101BILT -40°C, +125°C TSC101CILT (1) TSC101AIYLT (1) TSC101BIYLT -40°C, +125°C (1) TSC101CIYLT 1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q 002 or equivalent are on-going. ...

Page 17

... TSC101 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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