TSC1031IPT STMicroelectronics, TSC1031IPT Datasheet
TSC1031IPT
Specifications of TSC1031IPT
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TSC1031IPT Summary of contents
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Features ■ Independent supply and input common-mode voltages ■ Wide common-mode operating range: 2 single-supply configuration -2 dual-supply configuration ■ Wide common-mode surviving range: - (reversed battery and load-dump ...
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Contents Contents 1 Application schematic and pin description . . . . . . . . . . . . . . . . . . . . . . 3 2 Absolute maximum ratings and operating conditions . . ...
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TSC1031 1 Application schematic and pin description The TSC1031 high-side current sense amplifier can be used in either single- or dual-supply mode. In the single-supply configuration, the TSC1031 features a wide 2 input common-mode range totally ...
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Application schematic and pin description Figure 2. Dual-supply configuration schematic Cf 4/23 Vsense Iload Common-mode voltage Rf1 Rf2 Cf Vcc Vp Vm Rg2 Rg1 Sense Voltage amplifier K2 TSC1031 Rg3 Vcc- A1 Rf3 Doc ID ...
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TSC1031 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 ...
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Absolute maximum ratings and operating conditions 2 Absolute maximum ratings and operating conditions Table 2. Absolute maximum ratings Symbol V Input pins differential voltage ( Sensing pins input voltages (V in_sense V Gain selection pin input voltage (SEL) ...
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TSC1031 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 ● Rf1, Rf2 and ...
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Electrical characteristics Table 6. Output Symbol Parameter Sense amplifier gain K1 (K1 = Rg3/Rg1) K2 Voltage buffer gain Av Total gain (Av = K1.K2) ΔV /ΔT Output voltage drift vs. T out ΔV /ΔI Output stage load regulation out out ...
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TSC1031 Table 7. Frequency response Symbol Parameter ts Output settling final value t Output settling final value SEL Response to common-mode t voltage change. rec Output settling final value SR Slew ...
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Parameter definitions 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 ...
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TSC1031 Figure 4. V out The values of V sense1 Table 9. Table 9. Test conditions for V Av (V/V) 50 100 versus V characteristics: detail for low V sense Vout Vout_1 Vout_2 Vos Vsense2 and V used for the ...
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Parameter definitions 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 follows: with T ...
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TSC1031 4.5 Input offset drift versus temperature The input 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 < ...
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Parameter definitions Figure 7. Vout vs. Vsense theoretical and actual characteristics The output voltage accuracy, expressed as a percentage, can be calculated with the following formula, with 50 V/V or 100 V/V depending on the configuration of the SEL and ...
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TSC1031 5 Maximum permissible voltages on pins The TSC1031 can be used in either single- or dual-supply configuration. The dual-supply configuration is achieved by disconnecting Vcc- and Gnd, and connecting Vcc negative supply. Figure 8 illustrates how the ...
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Application information 6 Application information The TSC1031 can be used to measure current and to feed back the information to a microcontroller. Figure 9. Typical application Cf The current from the supply flows to the load through the R drop ...
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TSC1031 The resistor ratio R scale output range of the application, the R (equal to Av) are important parameters and must therefore be selected carefully. The TSC1031’s dedicated schematic eases the implementation of EMI filtering in harsh environments. An example ...
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Package information 7 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. ...
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TSC1031 7.1 SO-8 package information Figure 10. SO-8 package mechanical drawing Table 10. SO-8 package mechanical data Ref ccc Dimensions Millimeters Min. Typ. Max. 1.75 0.10 0.25 ...
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Package information 7.2 TSSOP-8 package information Figure 11. TSSOP8 package mechanical drawing Table 11. TSSOP8 package mechanical data Ref aaa 20/23 Dimensions Millimeters Min. Typ. Max. 1.20 0.05 ...
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... TSC1031 8 Ordering information Table 12. Order codes Part number Temperature range TSC1031IPT -40°C, +125°C TSC1031IDT (1) TSC1031IYPT -40°C, +125°C Automotive grade TSC1031IYDT 1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q002 or equivalent are on-going. ...
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Revision history 9 Revision history Table 13. Document revision history Date 04-Jan-2010 22/23 Revision 1 Initial release. Doc ID 16875 Rev 1 TSC1031 Changes ...
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... TSC1031 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. ...