TSC103 STMicroelectronics, TSC103 Datasheet
TSC103
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TSC103 Summary of contents
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... Uninterruptible power supplies ■ High-end power supplies Description The TSC103 measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage. The gain is adjustable to four different values from 20 V 100 V/V by two selection pins. Wide input common-mode voltage range, low quiescent current, and tiny TSSOP8 packaging enable use in a wide variety of applications ...
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... Gain (Av) and input offset voltage (V 5.4 Output voltage drift versus temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.5 Input offset drift versus temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5.6 Output voltage accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6 Maximum permissible voltages on pins . . . . . . . . . . . . . . . . . . . . . . . . 18 7 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 8 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 8.1 SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 8.2 TSSOP-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 9 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 2/ Doc ID 16873 Rev 2 TSC103 ...
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... Application schematic and pin description The TSC103 high-side current sense amplifier can be used in either single- or dual-supply mode. In the single-supply configuration, the TSC103 features a wide 2 input common-mode range totally independent of the supply voltage. In the dual-supply range, the common-mode range is shifted by the value of the negative voltage applied on the Vcc- pin ...
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... Application schematic and pin description Figure 2. Dual-supply configuration schematic 4/26 Vsense Iload Common-mode voltage: -2 Rsense Vp Vm Vcc+ Out SEL1 TSC103 SEL2 Vcc- Gnd Doc ID 16873 Rev Vcc µ Controller Vout ADC GPIO1 GPIO2 Gnd -5 V AM04518 TSC103 ...
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... TSC103 Figure 3. Common-mode versus supply voltage in dual-supply configuration common-mode voltage Table 1 describes the function of each pin. Their position is shown in the illustration on the cover page and in Table 1. Pin description Symbol Out Analog output Gnd Power supply Vcc+ Power supply Vcc- Power supply ...
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... Doc ID 16873 Rev 2 Value ±20 - (2) -0 +0.3 cc +0.3 cc+ -55 to 150 150 120 125 2.5 150 1.5 pin. cc- Value 2 -40 to 125 max TSC103 Unit °C °C °C/W °C Unit °C ...
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... TSC103 3 Electrical characteristics The electrical characteristics given in the following tables are measured under the following test conditions unless otherwise specified. ● 25° amb ● sense p Table 4. Supply Symbol Parameter I Total supply current CC I Total supply current CC1 Table 5. ...
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... Doc ID 16873 Rev 2 Min. Typ. Max 100 ±240 0.3 ±1.5 ±2.5 ±4 ±3.5 ±5 = 25° C ±3.5 ±5 = 25° C ±5.5 ±8 ±10 ± 135 80 125 =Av*V . See Chapter 5 out-th sense TSC103 Unit V/V ppm/°C mV/ for a ...
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... TSC103 Table 7. Frequency response Symbol Parameter Response to input differential ts voltage change. Output settling final value Response to a gain change. t SEL Output settling final value Response to common-mode t voltage change. rec Output settling final value SR Slew rate bandwidth Table 8. ...
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... T = 125 °C 150 100 50 4.5 5 5.5 Doc ID 16873 Rev 2 Output voltage accuracy vs. Vsense Guaranteed Typical accuracy vs. T accuracy Guaranteed accuracy @25° Vsense(mV) Supply current vs. Vsense ° -40° 125 °C 0 -100 -50 0 Vsense (mV) TSC103 80 100 50 100 ...
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... TSC103 Figure 8. Vp pin input current vs. Vsense -40 ° -100 -50 0 Vsense (mV) Figure 10. Output stage low-state saturation voltage vs. output current (Vsense = -1 V) 1200 Output stage sinking current 1000 800 T = 125 °C 600 400 200 Iout (mA) Figure 12 ...
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... Electrical characteristics curves: current sense amplifier Figure 14. Bode diagram -10 -20 -30 1.E+03 1.E+04 1.E+05 Frequency (Hz) Figure 16. Noise level 120 100 Frequency (Hz) 12/26 Figure 15. Power supply rejection ratio 100 1.E+06 1.E+07 Doc ID 16873 Rev 2 TSC103 100 1000 10000 100000 Frequency (Hz) ...
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... TSC103 5 Parameter definitions 5.1 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 can be compared with the applied differential signal. The CMR is defined by the formula: 5 ...
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... V characteristics: detail for low V sense Vout Vout_1 Vout_2 Vos Vsense2 and V used for the input offset calculations are detailed in sense2 voltage calculation os V (mV) sense1 Doc ID 16873 Rev 2 TSC103 values sense Vsense Vsense1 AM04520 V (mV) sense2 ...
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... TSC103 5.4 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 follows: with T < T min amb Figure 18 provides a graphical definition of the output voltage drift versus temperature. On ...
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... The actual value is very slightly different, mainly due to the effects of: ● the input offset voltage V ● the non-linearity. 16/26 Δ amb -------------- - = max --------------------------------------------------------------------- ΔT T amb 25° C < max -60 -40 - sense , os Doc ID 16873 Rev 25° – – 100 120 140 T (°C) TSC103 with os ...
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... TSC103 Figure 20. V out The output voltage accuracy, expressed as a percentage, can be calculated with the following formula, with 20 V/V, 25 V/V, 50 V/V or 100 V/V depending on the configuration of the SEL1 and SEL2 pins. vs. V theoretical and actual characteristics sense Vout abs V – out ΔV ...
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... Maximum permissible voltages on pins 6 Maximum permissible voltages on pins The TSC103 can be used in either a single or dual supply configuration. The dual-supply configuration is achieved by disconnecting Vcc- and Gnd, and connecting Vcc negative supply. Figure 21 are referred to the Vcc- potential, while the maximum voltages on the positive supply pin, gain selection pins and output pins are referred to the Gnd pin ...
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... TSC103 7 Application information The TSC103 can be used to measure current and to feed back the information to a microcontroller. Figure 22. Single-supply configuration schematic Vsense Rsense Rsense Vp Vp Rg1 Rg1 TSC103 Vcc- The current from the supply flows to the load through the R drop equal to V sense inverting input voltage is equal to V input to the same voltage as the inverting input ...
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... SEL1 and SEL2 pins. Since they define the full-scale output range of the application, the R amplification gain Av are important parameters and must therefore be selected carefully. 20/ internally set to 20 V/V, and the voltage buffer gain K2 can g3 g1 Doc ID 16873 Rev 2 TSC103 resistor and the sense ...
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... TSC103 8 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. ® ECOPACK trademark. Doc ID 16873 Rev 2 Package information ® ...
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... Dimensions Millimeters Min. Typ. Max. 1.75 0.10 0.25 1.25 0.28 0.48 0.17 0.23 4.80 4.90 5.00 5.80 6.00 6.20 3.80 3.90 4.00 1.27 0.25 0.50 0.40 1.27 1.04 0 8° 0.10 Doc ID 16873 Rev 2 TSC103 Inches Min. Typ. Max. 0.069 0.004 0.010 0.049 0.011 0.019 0.007 0.010 0.189 0.193 0.197 0.228 0.236 0.244 0.150 0.154 0.157 0.050 0.010 0.020 0.016 0.050 0.040 1° 8° 0.004 ...
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... TSC103 8.2 TSSOP-8 package information Figure 24. TSSOP8 package mechanical drawing Table 11. TSSOP8 package mechanical data Ref aaa Dimensions Millimeters Min. Typ. Max. 1.20 0.05 0.15 0.80 1.00 1.05 0.19 0.30 0.09 0.20 2.90 3.00 3.10 6.20 6.40 6.60 4.30 4.40 4.50 0.65 0° 8° 0.45 0.60 0.75 1 0.10 Doc ID 16873 Rev 2 Package information Inches Min. Typ. Max. 0.047 0.002 0.006 ...
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... Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q002 or equivalent. 24/26 Package Packaging TSSOP8 Tape & reel SO-8 Tape & reel TSSOP8 Tape & reel SO-8 Tape & reel Doc ID 16873 Rev 2 TSC103 Marking 103I TSC103I 103Y TSC103Y ...
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... TSC103 10 Revision history Table 13. Document revision history Date 04-Jan-2010 18-Nov-2011 Revision 1 Initial release. Added Chapter 4: Electrical characteristics curves: current sense amplifier. 2 Changed Figure 4 to Added automotive grade qualification for SO-8 package in Table 12: Order codes. Doc ID 16873 Rev 2 Revision history Changes Figure 16. ...
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... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 26/26 Please Read Carefully: © 2011 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Doc ID 16873 Rev 2 TSC103 ...