STLM20DD STMICROELECTRONICS [STMicroelectronics], STLM20DD Datasheet

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Ultra-low Current 2.4V precision analog temperature sensor Feature summary Precision analog voltage output temperature sensor ±1.5°C temperature accuracy at 25°C Ultra-low quiescent supply current: 8.0µA (max) Operating voltage range: 2.4V to 5.5V Operating temperature range: –55°C to 130°C (grade - ...

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Contents Contents 1 Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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STLM20 List of tables Table 1. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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List of figures List of figures Figure 1. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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STLM20 1 Summary description The STLM20 is a precision analog output temperature sensor for low current applications where maximizing battery life is important. It operates over a –55°C to 130°C (grade 7) or –40°C to 85°C (grade 9) temperature range. ...

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Summary description Figure 2. Connections (top view) NC (1) GND (2) V OUT 1. Pin 1 NC should be left floating or grounded. 2. Pin 2 GND may be grounded or left floating. For optimum thermal conductivity to the PC ...

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STLM20 2 Transfer function The STLM20’s transfer function can be described in different ways, with varying levels of precision. A simple linear transfer function, with good accuracy near 25°C is expressed as: Equation 1 Over the specified operating temperature range, ...

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Transfer function Table 3. Quadratic output equation (V Temperature error based on: – (–3.88e × T OUT where T is the temperature Table 4. Quadratic output equation for operations over the whole voltage range (V CC Temperature error ...

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... T Ambient operating temperature A 1. Reflow at peak temperature of 255°C to 260°C for < 30 seconds (total thermal budget not to exceed 180°C for between 90 to 150 seconds). 2. Grade 7: STLM20DD7F and STLM20W87F Grade 9: STLM20DD9F and STLM20W89F. Parameter Grade 7 Grade 9 Maximum rating Value Unit – ...

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DC and AC characteristics 4 DC and AC characteristics This section summarizes the DC and AC characteristics of the device. The parameters in the DC and AC characteristics table that follows are derived from tests performed under the test conditions ...

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STLM20 5 Capacitive load The STLM20 will handle capacitive loads 300pF. Over the specified temperature range, the STLM20 has a maximum output impedance of 160 . In a noisy environment, it may be advisable to add some ...

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Typical operating characteristics 6 Typical operating characteristics The graph shown in Figure 4. V OUT 12/17 Figure 6 represents V according to temperature. OUT vs. Temperature 2.50 2.00 1.50 1.00 0.50 0.00 –50 – Temperature (˚C) Typical (V ...

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STLM20 7 Package mechanical In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner ...

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Package mechanical Figure 6. UDFN – 4-lead package outline 1. Drawing is not to scale. Table 9. UDFN - 4 lead mechanical data Symbol ddd 14/17 mm Min Typ Max 0.45 ...

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... Shipping method F = ECOPACK package, tape & reel 1. Contact local sales office for availability Table 11. Marking description Part number STLM20W8 STLM20DD For other options, or for more information on any aspect of this device, please contact the ST Sales Office nearest you. STLM20 DD Package SOT323-5(SC70) ...

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Revision history 9 Revision history Table 12. Revision history Date 28-Jun-2006 19-Jul-2006 28-Aug-2006 05-Sep-2006 25-Sep-2006 10-Oct-2006 16/17 Revision 1 Initial release. 2 Added Table 11: Marking description Added a footnote concerning package availability in 3 summary on page 1 mechanical ...

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STLM20 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 ...