TSC102 STMicroelectronics, TSC102 Datasheet
TSC102
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TSC102 Summary of contents
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... Uninterruptible power supplies ■ High-end power supplies Description The TSC102 measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage. The device’s wide input common-mode voltage range, low quiescent current and tiny TSSOP8 packaging enable use in a wide variety of applications (also available in SO-8 package) ...
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... Common-mode rejection ratio (CMR 6.2 Supply voltage rejection ratio (SVR 6.3 Gain (Av) and input offset voltage (V 6.4 Output voltage drift versus temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.5 Output voltage accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 7 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 8 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 8.1 SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 8.2 TSSOP-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 9 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2/ Doc ID 16754 Rev 2 TSC102 ...
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... TSC102 1 Application schematic and pin description The TSC102 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 that it allows high-side current sensing at voltages much greater than the supply voltage (V Figure 1. ...
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... (1) (2) and V pins m p (3) (4) (5) Parameter to T min max min max pin voltage) m Doc ID 16754 Rev 2 TSC102 Value Unit ± -55 to 150 °C 150 °C 120 °C/W 125 °C 2.5 kV 200 V 1.5 kV Value Unit 3 ...
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... TSC102 3 Electrical characteristics Unless otherwise specified, the electrical characteristics given in the following tables have been measured under the following test conditions. ● 25° amb ● No load on Out pin. ● Signal conditioning amplifier used as a buffer (pin A3 connected to pin Out and pin A1 connected to pin A2) ...
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... Min. Typ. Max 185 75 165 or Gnd 10 30 ±400 0.4 ±2 ±2.5 ±4 ±2.5 ±4 ±8 ±10 ±13 ± See Chapter 6 a1-th sense Min. Typ. Max. 7 0.2 0.4 800 Min. Typ. Max. 50 TSC102 Unit V ppm/°C mV/ for Unit µs V/µs kHz Unit nV/√ Hz ...
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... TSC102 Table 9. Signal conditioning amplifier Symbol Parameter V Common mode voltage range icm V Input offset voltage IO ΔV Input offset voltage drift IO Iib Input bias current Output high-level saturation V oh2 voltage ( oh2 CC V Output low-level saturation voltage ol2 I Short-circuit current sc2 ΔV /Δ ...
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... Doc ID 16754 Rev pin voltage accuracy vs. Vsense typical accuracy guaranteed accuracy vs. T guaranteed accuracy @25°C 50 100 150 Vsense (mV) Supply current vs. Vsense 700 T=-40°C 600 500 400 T=25°C 300 T=125°C 200 100 0 -150 -50 50 150 Vsense (mV) TSC102 200 250 ...
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... TSC102 Figure 6. Vp pin input bias current vs. Vsense T=-40° -250 -150 -50 Vsense (mV) Figure 8. Output stage low-state saturation voltage versus output current (Vsense = -1 V) 1200 output stage 1000 sinking current 800 600 400 200 ia1 (mA) Figure 10 ...
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... Electrical characteristics curves: current sense amplifier Figure 12. Bode diagram -10 -20 -30 10/24 Figure 13. Power supply rejection ratio 100 Doc ID 16754 Rev 2 TSC102 ...
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... TSC102 5 Electrical characteristics curves: signal conditioning amplifier Unless otherwise specified, the test conditions for the following curves are: ● 25° amb ● no load on Out. ● signal conditioning amplifier tested as standalone amplifier. Figure 14. Input offset voltage versus input common-mode voltage ...
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... – ⎝ sense1 – a11 a12 V out Av = ----------------- - V sense Doc ID 16754 Rev 2 and V . The CMR is referred ⋅ 18 the output voltage with a11 = mV, then sense sense2 ⎞ ⋅ V ⎠ out1 TSC102 ...
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... TSC102 Figure 18. V versus V a1 6.4 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 19 on page 14 temperature. On this chart V ...
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... V = Av. V a1-th The actual value is very slightly different, mainly due to the effects of the input offset voltage V and the non-linearity. os 14/ -10 -20 -30 -40 -50 -60 -40 - (°C) sense Doc ID 16754 Rev 100 120 140 TSC102 ...
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... TSC102 Figure 20 The output voltage accuracy, expressed as a percentage, can be calculated with the following formula: with V/V. vs. V theoretical and actual characteristics sense Va1 Va1 abs V – a1 ΔV = ------------------------------------------------------------------------ - a1 Av Doc ID 16754 Rev 2 Parameter definitions Actual Actual Ideal Ideal ...
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... Application information 7 Application information The TSC102 can be used to measure current and feed back the information to a microcontroller, as shown in Figure 21. Typical application schematic Iload Vp 8 Rsense Vm 1 Vsense Gnd 2 load This fully-accessible output amplifier offers wide schematic possibilities, as shown in the following examples. ...
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... TSC102 Figure 23. Gain lower than 20 Vsense Figure 24. Overcurrent protection Vsense TSC102 Gnd Vcc TSC102 Gnd Doc ID 16754 Rev 2 Application information Vcc Out Vout = Av.R2.Vsense/(R1+R2) AM04513 Out 5 R1 ...
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... Figure 25. First-order low-pass filter Vsense Figure 26. Second-order low-pass filter Vsense 18/24 TSC102 Gnd Vcc TSC102 Gnd Doc ID 16754 Rev 2 TSC102 Vcc Out 5 A3 AM04515 Out AM04516 ...
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... TSC102 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 16754 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 16754 Rev 2 TSC102 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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... TSC102 8.2 TSSOP-8 package information Figure 28. 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 16754 Rev 2 Package information Inches Min. Typ. Max. 0.047 0.002 0.006 ...
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... AEC Q001 & Q 002 or equivalent. 22/24 Temperature range Package TSSOP8 -40° C, +125° C SO-8 TSSOP8 -40° C, +125° C Automotive grade SO-8 Doc ID 16754 Rev 2 Packing Marking Tape & reel 102I Tape & reel TSC102I (1) Tape & reel 102Y (2) Tape & reel TSC102IY TSC102 ...
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... TSC102 10 Revision history Table 13. Document revision history Date 09-Nov-2009 03-Mar-2011 Revision 1 Initial release. Added automotive grade qualification for SO-8 package 2 (note 2. under Table Doc ID 16754 Rev 2 Revision history Changes 12). 23/24 ...
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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 24/24 Please Read Carefully: © 2011 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Doc ID 16754 Rev 2 TSC102 ...