MAX6514/MAX6515 19-3147 Rev 1 2/11 Low-Cost, 2.7V to 5.5V Temperature Switches in a SOT23 General Description Features The MAX6514/MAX6515 low-cost, fully integrated temper- High-Accuracy 1.5C (max) over -15C to +65C ature switches assert a logic signal when their die tem- Temperature Range perature crosses a factory-programmed threshold. Low-Power Consumption: 22A Typical Current Operating from a 2.7V to 5.5V supply, these devices fea- ture a fixed voltage reference, an analog temperature Factory-Programmed Thresholds from -45C to sensor, and a comparator. They are available with facto- +115C in 10C Increments ry-trimmed temperature trip thresholds from -45C to Open-Drain or Push-Pull Outputs +15C and +35C to +115C in 10C increments, and are accurate to 1C (typ). These devices require no external Pin-Selectable 2C or 10C Hysteresis components and typically consume 22A of supply cur- rent. Hysteresis is pin selectable at 2C or 10C. Ordering Information The MAX6514/MAX6515 are offered with hot-tempera- ture thresholds (+35C to +115C), asserting when the PIN- PART TEMP RANGE temperature is above the threshold or with cold-temper- PACKAGE ature thresholds (-45C to +15C), asserting when the MAX6514UK +T -55C to +125C 5 SOT23 temperature is below the threshold. The MAX6514/ MAX6515UK +T -55C to +125C 5 SOT23 MAX6515 can be used over a -35C to +125C range with a supply voltage of 2.7V to 5.5V. For applications Note: These parts are offered in 16 standard temperature ver- sions with a minimum order of 2500 pieces. To complete the sensing temperature down to -45C, a supply voltage suffix information, add P or N for positive or negative trip tem- above 4.5V is required. perature, and select an available trip point in degrees centi- The MAX6514 has an active-high, push-pull output. The grade. For example, the MAX6514UKP065+T describes a MAX6515 has an active-low, open-drain output. These MAX6514 in a 5-pin SOT23 package with a +65C threshold in devices are available in a space-saving 5-pin SOT23 tape and reel (2.5k minimum order). Contact the factory for package and operate over the -55C to +125C tem- pricing and availability. perature range. +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. Applications Over/Undertemperature Protection Typical Operating Circuit Fan Control V CC Test Equipment Temperature Control 100k Temperature Alarms Notebook, Desktop PCs V V CC CC RAID TOVER INT Servers MAX6515 MICROCONTROLLER 0.1F Pin Configurations and Functional Diagram appear at end of GND GND HYST GND data sheet. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Low-Cost, 2.7V to 5.5V Temperature Switches in a SOT23 ABSOLUTE MAXIMUM RATINGS All Voltages Are Referenced to GND Operating Temperature Range ........................-55C to +125C V ..........................................................................-0.3V to +6V Junction Temperature..................................................... +150C CC TOVER, TUNDER (open drain)................................ -0.3V to +6V Storage Temperature Range .............................-65C to +150C TOVER, TUNDER (push-pull)....................... -0.3V to V + 0.3V Lead Temperature (soldering, 10s) ................................ +300C CC HYST.............................................................-0.3V to V + 0.3V Soldering Temperature ....................................................+260C CC Continuous Power Dissipation SOT23 (derate 3.1mW/C above +70C).....................247mW 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. ELECTRICAL CHARACTERISTICS (V = 2.7V to 5.5V, R = 100k, (open-drain output only), T = -55C to +125C, unless otherwise noted. Typical values are CC PULLUP A at T = +25C.) (Note 1) A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage Range V 2.7 5.5 V CC Hot-temperature thresholds 22 40 (+35C to +115C) Supply Current I A CC Cold-temperature thresholds 40 (-45C to +15C) -15C to +65C -1.5 +1.5 Temperature Threshold Accuracy T +75C to +115C -2.5 +2.5 C TH (Note 2) -45C to -25C (Note 3) -3 +3 HYST = V 2 Temperature Threshold CC T C HYST Hysteresis HYST = GND 10 V 0.8 x V IH CC HYST Input Threshold (Note 4) V V 0.2 x V IL CC I = 500A, V > 2.7V 0.8 x V SOURCE CC CC Logic Output Voltage High V V OH (Push-Pull) I = 800A, V > 4.5V V - 1.5 SOURCE CC CC I = 1.2mA, V > 2.7V 0.3 Logic Output Voltage Low SINK CC V V OL (Push-Pull and Open Drain) I = 3.2mA, V > 4.5V 0.4 SINK CC Open-Drain Output Leakage V = 2.7V, open-drain output = 5.5V 10 nA CC Current Note 1: 100% production tested at T = +25C. Specifications over temperature are guaranteed by design. A Note 2: The MAX6514/MAX6515 are available with internal factory-programmed temperature trip thresholds from -45C to +15C and +35C to +115C in 10C increments. Note 3: V must be greater than 4.5V for a switching threshold of -45C. CC Note 4: Guaranteed by design. 2 MAX6514/MAX6515