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KK135Z Dataheets PDF



Part Number KK135Z
Manufacturers KODENSHI KOREA
Logo KODENSHI KOREA
Description Integrated circuit of temperature sensor
Datasheet KK135Z DatasheetKK135Z Datasheet (PDF)

www.DataSheet4U.com TECHNICAL DATA Integrated circuit of temperature sensor Microcircuit KK135Z is precision temperature sensor with calibration capacity . Microcircuit operates as Zener diode with brake down voltage being in direct proportion to to absolute temperature (10 mV/OK). Full dynamic resistance of the circuit is less than 1 Оhm at operation current 450 µА...5 mА. The sensor calibrated at the temperature 25OС,has typical error less than 1OС in the temperature range above 100OС. The p.

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www.DataSheet4U.com TECHNICAL DATA Integrated circuit of temperature sensor Microcircuit KK135Z is precision temperature sensor with calibration capacity . Microcircuit operates as Zener diode with brake down voltage being in direct proportion to to absolute temperature (10 mV/OK). Full dynamic resistance of the circuit is less than 1 Оhm at operation current 450 µА...5 mА. The sensor calibrated at the temperature 25OС,has typical error less than 1OС in the temperature range above 100OС. The peculiarity of the circuit KK135Z is the linear dependence of output voltage versus temperature. KK135Z Packaged IC type: IC features   calibration in OК   initial measurement accuracy 1OK   range of operating supply current from 450 µА to 5 mА Full dynamic resistance less than 1 Оhm KK135Z, КТ-26 Bottom view Figure 1 - Package pin definitions Figure 2 - circuitry KK135Z. 1 www.DataSheet4U.com KK KK135Z 135Z Тable 1 - Maximum ratings Name of parameter IC current reverse direct Air operation temperature: * - constant mode Symbol min IR IF TOPER - 55 150 Tstg -65 150 200 150 °С -Standard max 15 10 Unit of measurement mA °С - short-time Storage temperature Note - *TJ ≤ 150°С Тable 2 – Temperature parameters. Name of parameter output voltage, V Symbol UOUT ∆Т1 ∆Т2 ∆Т3 ∆Т4 min 2,95 Standard Type max 2,98 1 2 0,5 2 0,3 3,01 3 5 1,5 1 Test conditions IR = 1 mA IR = 1 mA IR = 1 mA Тcase=Тmax periodical Temperature °С 25 25 -55 ÷ 150 -55 ÷ 150 -55 ÷ 150 -55 ÷ 150 Unit V °С °С °С °С Non-calibrated temperature error temperature error at calibration 25° С Calibrated error in extended temperature range Non-linearity of temperature characteristic - IR = 1 mA Тable 3 – Electrical parameters. Name of parameter Measurement of output voltage in supply currents range Dynamic impedance Temperature coefficient of output voltage Time constant: -still air -speed of air is 0,5 m/с - agitated oil Time stability Symbol min ∆UOUT ∆R1 ТКН τТ Standard type. 2,5 max 10 Test conditions 0,45 mА ≤ I R ≤ 5 mА IR = 1 mА Temperatu re °С -55 ÷ 150 25 25 -55 ÷ 150 mV - 0,5 +10 80 10 1 0,2 - Ohm mV/°С С ТСТАБ - 125 °С/ 1000ч Note – Precise measurements done in agitated oil bath. For other conditions there should be taking into consideration self-heating . 2 www.DataSheet4U.com KK135Z Change of reverse voltage, (mV) Calibration error, (оС) Reverse current, (mА) Figure 3 –Reverse voltage versus reverse current Reverse current, (mА) Temperature , (оС) Figure 4 – Calibration error versus temperature Input and output voltage, (V) reverse voltage, (V) Time, (мкс) Figure 5 – Reverse current versus reverse voltage Figure 6 – Output signal response time 3 www.DataSheet4U.com KK135Z Direct dynamic resistance , (Оhm) Noise density (nV/√Hz) Frequency, (Hz) Frequency, (Hz) Figure 7 – Dynamic resistance versus frequency Зависимость динамического сопротивления от частоты Figure 8 – Noise voltage Thermal resistance, (оС/Wt) Time constant, ( с ) Air motion speed, (m/с) Air motion speed, (m/с) Figure 9 – Thermal resistance versus air motion speed Figure 10 – Time constant versus air motion speed 4 www.DataSheet4U.com KK135Z Heat conduction , (%) Heat conduction, (%) Time, (min) Time, (min) Figure 11 – Time dependence of heat conduction in still air Figure 12 – Time dependence of heat conduction in agitated oil Direct voltage, (V) Direct current, (mА) Figure 13 – Dependence of direct voltage on direct current Information for application. There is a simple technique of the device calibration for improving precision of temperature measurement (see typical application circuits). Calibration of the device occurs in one spot as the IC output voltage is proportional to absolute temperature with sensor voltage extrapolation to 0 V at 0оК (-273,15оС). The errors in dependence of output voltage on temperature are determined only by characteristic incline. Therefore bias calibration at one temperature corrects errors in the whole temperature range. Output voltage of calibrated or non calibrated circuit may be derived from the following equation: T VOT = VOTO ; To where Т – unknown temperature; ТО – reference temperature (in оК). 5 www.DataSheet4U.com KK135Z Nominally IC output calibrated to the value 10 mV/ оК. To ensure measurement precision they apply some rules. Degradation of the precision when selfheating is proper to any devices of temperature sensors. The circuit should operate at low operating current but sufficient for controlling the sensor and its calibration circuit at maximum operating temperature. When using the sensor in the field with constant thermal resistance, error when self-heating may be reduced by external calibration. It can be done at the circuit bias when applying temperaturestabilized current. Thus heating will be proportional to Zener diode voltage. In this case error when self-heating is proportional to absolute temperature as the error of scaling coefficient. Typical application circ.


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