MITSUMI Analog voltage output temperature sensor MM1522XU/XN Analog voltage output temperature sensor Monolithic IC MM1522XU/XN Outline This is a temperature sensor IC that can obtain +10mV/˚C linear output voltage relative to temperature change. Features 1. Temperature sensitivity 2. Output voltage precision 3. Consumption current 4. Operating power voltage range 5. Operating temperature range ±10mV/˚C +3˚C max. 70µA typ. +2.7~+10.0V -40~+125˚C Package SC-82ABB (MM1522XU) SOT-25A (MM1522XN) Applications 1. CPU heat protection 2. Battery charger heat protection 3. Cellular phones Pin Description SC-82ABB SOT-25A Pin No. Pin Name 1 N.C 2 GND 3 4 Function Pin No. Pin Name 1,3 N.C GND PIN 2 GND GND PIN VCC VCC PIN 4 VCC VCC PIN VOUT Output PIN 5 VOUT Output PIN Absolute Maximum Ratings Function (Ta=25˚C) Item Symbol Rating Unit Storage temperature TSTG -55~+150 ˚C Operating temperature TOPR -40~+125 ˚C Supply voltage VCC max. +13 V Allowable loss Pd 154 (SC-82ABB) 188 (SOT-25A) mW MITSUMI Analog voltage output temperature sensor MM1522XU/XN Electrical Characteristics (Except where noted otherwise, VCC=3V, Ta=-25~+100˚C, IOUT=0µA) Item Symbol Measurement Conditions Accuracy Ac Ta=-25~+100˚C Current consumption ICC VCC=+2.7~+10V VOUT Output voltage 2 * * ˚C 70 110 µA * 0.24 0.27 0.30 V Ta=+30˚C 0.79 0.82 0.85 V Ta=+100˚C 1.49 1.52 1.55 V 10 1 * NL Nonlinearity 4 ±3 1 Ta=-25˚C VSE Temperature sensitivity 3 * Min. Typ. Max. Unit ±0.8 1 * Line regulation LineReg Ta=+30˚C VCC=+2.7~+10V 0 Load regulation LoadReg Ta=+30˚C IOUT=0~400µA 0 ISE Ta=-40~+125˚C 0.2 1 Temperature sensitivity of current consumption mV/˚C ±1.0 mV/V 1 * Note: 1 Design assurance value * Note: 2 Output voltage: VOUT Terminal voltage at the time of Ta=-25˚C, 30˚C and 100˚C. * Output voltage max. min. -25˚C Note: 3 Temperature Sensitivity: VSE Temperature coefficient of output voltage calculated from output voltage at the time of Ta=-25˚C and +100˚C. VSE=(VOUT (100˚C)-VOUT(-25˚C))/125 30˚C Temperature 100˚C * VOUT (+100˚C) Output voltage Slope: Temperature sensitivity VOUT (-25˚C) -25˚C 100˚C Temperature ˚C µV/µA µA/˚C MITSUMI Analog voltage output temperature sensor MM1522XU/XN Note: 4 Nonlinearity: NL Characteristic curve of output voltage and deflection with the approximation straight line. In temperature range from -25 to +100˚C, the approximation straight line and the maximum deflection of the temperature of the measurement value among output voltages obtained from the approximation straight line. It assumes the approximation straight line to be a straight line to which a is minimized. * Output voltage measurement value a a -25˚C Block Diagram MM1522XU a MM1522XN Approximated straight line 30˚C Temperature 100˚C MITSUMI Measuring Circuit Application Circuits Thermal watch of Microprocessor Thermal watch of Battery Cell Analog voltage output temperature sensor MM1522XU/XN