MAX6613MXK+TB5B

MAX6613 Low-Voltage Analog Temperature Sensor in an SC70 Package General Description The MAX6613 is a low-power precision analog output temperature sensor in a tiny 5-pin SC70 package. The MAX6613 operates over a 1.8V to 5.5V supply voltage range, with a typical current consumption of only 7.5µA. It is particularly well suited for portable applications where minimizing battery cost and maximizing useful battery life are crucial. The MAX6613 provides an analog voltage output proportional to temperature. Accuracy is ±4.0°C (max) over a range of TA = 0°C to +50°C and ±4.4°C (max) from TA = -20°C to +80°C. Self-heating effects are negligible due to the low current consumption of the part. Unlike many analog temperature sensors, the MAX6613 is stable with any capacitive load from 0pF to 1000pF, providing broad flexibility in board-level design. The operating temperature range varies with the voltage supply. The MAX6613 can be used over a -55°C to +130°C range with a 2.5V to 5.5V supply voltage. For applications with a supply voltage of 1.8V, the MAX6613 can be used over a +25°C to +130°C temperature range. Benefits and Features ●● Minimizes Power Consumption with Ultra-Low 7.5µA (typ) Supply Current ●● Minimizes Board Space with Tiny SC70 Package ●● Extends Performance Range with Wide 1.8V to 5.5V Operating Range ●● Ideal for Broad Range of Thermal Management Applications • -55°C to +130°C Measurement Range • 4.0°C Accuracy ●● Pin Compatible with LM20 Ordering Information PART TEMP RANGE MAX6613MXK+T PINPACKAGE -55°C to +130°C 5 SC70 ADJ MAX6613MXK/V+T -55°C to +130°C 5 SC70 ADJ +Denotes a lead(Pb)-free/RoHS-compliant package. /V denotes an automotive qualified part. Applications ●● Cellular Phones ●● GPS Equipment ●● Medical Instruments ●● Battery Management ●● Appliances ●● Disk Drives ●● Printers ●● Fax Machines ●● HVAC Typical Application Circuit Pin Configuration VCC VCC VOUT 0.1µF TOP VIEW MICROCONTROLLER VCC N.C. 1 GND 2 OUT 3 + 5 GND 4 VCC ADC IN MAX6613 MAX6613 GND GND 100pF GND SC70 19-2477; Rev 4; 5/15 TOP MARK MAX6613 Low-Voltage Analog Temperature Sensor in an SC70 Package Absolute Maximum Ratings (All voltages referenced to GND, unless otherwise noted.) VCC to GND.............................................................-0.3V to +6V All Other Pins to GND............................... -0.3V to (VCC + 0.3V) OUT Short to GND.....................................................Continuous Output Current..................................................... -1mA to +50mA ESD Protection (Human Body Model)...............................2000V Continuous Power Dissipation (TA = +70°C) 5-Pin SC70 (derate 3.1mW/°C above +70°C)...........246.9mW Operating Temperature Range.......................... -55°C to +130°C Junction Temperature.......................................................+150°C Storage Temperature Range............................. -65°C to +150°C Lead Temperature (soldering 10s)...................................+300°C Soldering Temperature (reflow)........................................+260°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC Electrical Characteristics (VCC = 1.8V to 5.5V, TA = -55°C to +130°C. Typical values are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS VCC = 2.7V, TA = 0°C to +50°C Temperature-to-Voltage Error (Notes 2, 3) -4 +4 +4.4 VCC = 2.7V, TA = -55°C to +100°C -4.5 +4.5 VCC = 2.7V, TA = +100°C to +125°C -4.7 +4.7 VCC = 2.7V, TA = +125°C to +130°C -5 +5 TA = 0°C TA = -55°C to +100°C Sensor Gain (Temperature Sensitivity or Average Slope) TA = -20°C to +100°C (Note 3) Supply Sensitivity (Note 3) Quiescent Current IQ °C V ±0.4 % -11.23 -11.47 160 0 < IL < 16µA, TA = +125°C to +130°C 300 0 < IL < 16µA, TA = -55°C to +125°C -2.5 0 < IL < 16µA, TA = 125°C to 130°C -4.8 mV/°C W mV TA = -20°C to +130°C, VCC ≤ 5.5V 1 3.3 TA = -55°C to -20°C, VCC ≤ 4.5V 1 4.7 mV/V TA = -55°C to -20°C, VCC ≤ 5.5V 1 13 µA 1000 pF No load No sustained oscillations for capacitive loads in this range (Note 4) Long-Term Stability TA = room temperature for 1000hr (Note 4) Temperature Coefficient of Supply Current www.maximintegrated.com -10.98 UNITS 1.8455 0 < IL < 16µA, TA = -55°C to +125°C Capacitive Load Power-Down Supply Current MAX -4.4 Nonlinearity Load Regulation TYP VCC = 2.7V, TA = -20°C to +85°C Output Voltage Maximum Output Impedance MIN VCC < 0.8V 7.5 0 0.1 °C 15 nA/°C 0.1 µA Maxim Integrated │  2 MAX6613 Low-Voltage Analog Temperature Sensor in an SC70 Package Typical Operating Characteristics -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) SUPPLY CURRENT (µA) 8.0 MAX6613 toc03 SUPPLY CURRENT vs. SUPPLY VOLTAGE SUPPLY CURRENT (µA) 9 8 7 6 5 4 3 2 1 0 1.0 2.0 SUPPLY CURRENT vs. TEMPERATURE 9.0 10 3.0 4.0 5.0 0 6.0 0 1.0 SUPPLY VOLTAGE (V) 9.5 8.5 OUTPUT VOLTAGE vs. SUPPLY VOLTAGE VCC = 3.3V 2.0 3.0 4.0 5.0 6.0 SUPPLY VOLTAGE (V) STEP RESPONSE FROM +25°C TO +125°C MAX6613 toc04 10.0 1.510 1.508 1.506 1.504 1.502 1.500 1.498 1.496 1.494 1.492 1.490 1.488 1.486 1.484 1.482 1.480 MAX6613 toc02 OUTPUT VOLTAGE vs. TEMPERATURE MAX6613 toc01 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) (RL = ∞Ω, TA = +30°C, unless otherwise noted.) MAX6613 toc05 1.55V VOUT VCC = 5V 7.5 VCC = 2.7V 7.0 200mV/div 6.5 6.0 430mV 5.5 5.0 -40 -25 -10 5 20 35 50 65 80 95 110 125 1s/div TEMPERATURE (°C) Pin Description PIN NAME 1 N.C. No Connection. Must be connected to ground or left unconnected. 2 GND Ground. Should be connected to pin 5. Can be left unconnected, if desired. 3 OUT Voltage Output 4 VCC Supply Voltage. Bypass to GND with a 0.1µF capacitor. 5 GND Ground www.maximintegrated.com FUNCTION Maxim Integrated │  3 MAX6613 Low-Voltage Analog Temperature Sensor in an SC70 Package Table 1. Linear and Quadratic Output Equation PARAMETER SYMBOL Temperature Error Based on: OUT = 1.8639 - 0.0115 x Temp (Note 4) Temperature Error Based on: OUT = 1.8639 - 0.0115 x Temp 0.00000388 x Temp2 (Note 4) CONDITIONS MIN TYP MAX VCC = 2.7V, TA = -55°C 0.6 7.9 VCC = 2.7V, TA = -20°C -0.4 +5.8 VCC = 2.7V, TA = 0°C -0.9 +4.5 VCC = 2.7V, TA = +50°C -2.6 +3.0 VCC = 2.7V, TA = +85°C -3.6 +3.5 VCC = 2.7V, TA = +100°C -4.0 +3.7 VCC = 2.7V, TA = +125°C -4.8 +4.2 VCC = 2.7V, TA = +130°C -5.1 +4.2 VCC = 2.7V, TA = -55°C -0.4 +6.9 VCC = 2.7V, TA = -20°C -0.6 +5.7 VCC = 2.7V, TA = 0°C -0.9 +4.5 VCC = 2.7V, TA = +50°C -3.5 +2.1 VCC = 2.7V, TA = +85°C -6.1 +1.0 VCC = 2.7V, TA = +100°C -7.4 +0.4 VCC = 2.7V, TA = +125°C -10.1 -1.0 VCC = 2.7V, TA = +130°C -10.8 -1.5 Detailed Description The MAX6613 analog output temperature sensor’s output voltage is a discrete function of its die temperature. The maximum supply current is 13µA, and the supply voltage range is from 2.5V to 5.5V for the -55°C to +130°C temperature range, or 1.8V to 5.5V for the +25°C to +130°C temperature range. UNITS °C °C Compatibility with Other Temperature Sensors The MAX6613 can be used to replace temperature sensors using other output algorithms. Table 1 provides information for a linear and quadratic output equation. Contact the factory for performance information about another equation. Transfer Function The temperature-to-voltage transfer function is approximately linear and can be described by the quadratic equation: VOUT = -0.0000022 5 T2 - 0.01105 × T + 1.8455V In many cases, a linear approximation can be applied: VOUT = -0.01123 × T + 1.8455V where T is the die temperature of the MAX6613 in °C. Therefore: T = (1.8455 - VOUT)/0.01123V www.maximintegrated.com Maxim Integrated │  4 MAX6613 Applications Information Sensing Circuit Board and Ambient Temperature A temperature sensor IC like the MAX6613 that senses its own die temperature must be mounted on, or close to, the object whose temperature it is intended to measure. Because there is a good thermal path between the package’s metal lead and the IC die, the MAX6613 can accurately measure the temperature of the circuit board to which it is soldered. If the sensor is intended to measure the temperature of a heat-generating component on the circuit board, it should be mounted as close as possible to that component and should share supply and ground traces (if they are not noisy) with that component where possible. This optimizes the thermal connection from the component to the sensor. The thermal path between the plastic package and the die is not as good as the path through the lead, so the MAX6613, like all temperature sensors in plastic packages, is less sensitive to the temperature of the surrounding air than to the temperature of its leads. It can be successfully used to sense ambient temperature if the circuit board is designed to track the ambient temperature. www.maximintegrated.com Low-Voltage Analog Temperature Sensor in an SC70 Package As with any IC, the wiring and circuits must be kept insulated and dry to avoid leakage and corrosion, especially if the part is operated at cold temperatures where condensation can occur. The change in die temperature introduced by the part due to self-heating is negligible. Chip Information PROCESS: BiCMOS Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/ packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE 5 SC70 X5+1 OUTLINE LAND NO. PATTERN NO. 21-0076 90-0188 Maxim Integrated │  5 MAX6613 Low-Voltage Analog Temperature Sensor in an SC70 Package Revision History REVISION NUMBER REVISION DATE 0 5/02 Initial release — 1 11/03 Corrected error in equation 4 2 1/06 Updated spec in table 2 3 12/10 Added lead-free and automotive part, style edits 4 5/15 Revised Benefits and Features section DESCRIPTION PAGES CHANGED 1, 2, 3, 5, 6 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2015 Maxim Integrated Products, Inc. │ 6