MAX6505MAX6508 19-1712 Rev 1 2/11 Dual Trip SOT Temperature Switches General Description Features The MAX6505MAX6508 temperature switches have dual 0.5C (typ) Threshold Accuracy Over Full logic outputs that assert when the die temperature cross- Temperature Range es their trip thresholds. Trip thresholds are factory pro- No External Components Required grammed to convenient temperatures in 5C increments. Low Cost The MAX6505/MAX6506 have an ALARM output that 30A (typ) Supply Current asserts when the temperature is above the factory-pro- grammed thresholds (available from -40C to +125C). Factory-Programmed Thresholds from -40C to They also have a WARN output that asserts when the +125C in 5C Increments temperature is several degrees below the ALARM thresh- Open-Drain Outputs (MAX6505/MAX6507), old. The difference between the ALARM and WARN Push-Pull Outputs (MAX6506/MAX6508) thresholds (T ) is pin selectable to +5C, +10C, AW Pin Selectable 2C, 10C Hysteresis +20C, or +30C. The MAX6505s logic outputs are open (MAX6507/MAX6508) drain, while the MAX6506s logic outputs are push-pull. Pin Selectable +5C, +10C, +20C, +30C The MAX6507 has open-drain outputs (OVER, OK), and the MAX6508 has push-pull outputs (OVER, OK), each T - T (MAX6505/MAX6506) ALARM WARN with two factory-programmed threshold temperatures SOT23 Package (T and T ) in the wide range of -40C to OVER UNDER +125C. The overtemperature output asserts when the Ordering Information temperature is above T . When the temperature is in OVER PART TEMP RANGE PIN-PACKAGE the desired window (less than T and greater than OVER T ), OK (OK) asserts. MAX6505UT +T UNDER -40C to +125C 6 SOT23 The MAX6505MAX6508 are accurate to 0.5C (typ), MAX6506UT +T -40C to +125C 6 SOT23 5.5C (max). Operating from a +2.5V to +5.5V supply, MAX6507UT +T -40C to +125C 6 SOT23 these low-cost devices typically consume 30A supply MAX6508UT +T -40C to +125C 6 SOT23 current and require no external components for setting Note: To complete the suffix information for the MAX6505/ trip points. The MAX6505MAX6508 are available in a MAX6506, add P or N for positive or negative trip tempera- 6-pin SOT23 package. ture, and select an available trip point in degrees centigrade. For example, the MAX6505UTP055+T describes a MAX6505 in Applications a SOT23 package with a +55C threshold (Table 3). Contact P Temperature Monitoring in High-Speed the factory for pricing and availability of temperature versions (minimum order 10,000 pieces). Computers To complete the suffix information for MAX6507/MAX6508, see Temperature Control Table 4. +Denotes a lead(Pb)-free/RoHS-compliant package. Temperature Alarms T = Tape and reel. Fan Control Selector Guide appears at end of data sheet. Typical Operating Circuits appear at end of data sheet. Pin Configurations TOP VIEW + + WARN ALARM OK OVER 16 16 (WARN) (ALARM) (OK) (OVER) MAX6505 MAX6507 GND 2 5 S0 GND 2 5 N.C. MAX6506 MAX6508 S134 V S034 V CC CC ( ) ARE FOR MAX6506. ( ) ARE FOR MAX6508. SOT23 SOT23 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.Dual Trip SOT Temperature Switches ABSOLUTE MAXIMUM RATINGS Supply Voltage (V to GND) ..................................-0.3V to +6V Operating Temperature Range (T to T ) ..-40C to +125C CC MIN MAX S1, S0 to GND ............................................-0.3V to (V + 0.3V) Thermal Resistance ( )...............................................115C/W CC JA All Other Pins to GND.................................-0.3V to (V + 0.3V) Storage Temperature Range .............................-65C to +150C CC Input/Output Current, All Pins...........................................20mA Maximum Die Temperature..............................................+150C Continuous Power Dissipation (T = +70C) Lead Temperature (soldering, 10s) .................................+300C A SOT23 (derate 8.7mW/C above +70C)....................696mW Soldering Temperature (reflow) .......................................+260C 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 = +2.5V to +5.5V, R = 100k (MAX6505/MAX6507 only), T = -40C to +125C, unless otherwise noted. Typical values CC PULLUP A are at T = +25C and V = +5V, unless otherwise noted.) (Note 1) A CC PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage Range V 2.5 5.5 V CC MAX6505/ S0 = S1 = GND 40 80 MAX6506 Supply Current I A CC MAX6507/ S0 = GND 30 60 MAX6508 -40C to 0 C -5.5 0.5 5.5 Temperature Threshold T 0C to +95 C -3.5 0.5 3.5 C TH Accuracy (Note 2) +95C to +125 C -4 0.5 4 S1 = GND, S0 = GND 5 Delta Temperature S1 = GND, S0 = V 10 CC (T -T ) T C ALARM WARNING AW S1 = V , S0 = GND 20 CC MAX6505/MAX6506 S1 = V , S0 = V 30 CC CC ALARM (MAX6505/MAX6506) 2 T = 5C or AW 5 WARN 10C (MAX6505/MAX6506) Temperature Threshold T = 20C or AW T 10 C HYST Hysteresis (Note 3) 30C S0 = GND 2 OK, OVER (MAX6507/MAX6508) S0 = V 10 CC 0.8 x V IH V Logic Input Levels (S1, S0) CC V V 0.8 IL 0.8 x I = 500A, V > 2.5V SOURCE CC V CC Output Voltage High V V OH (MAX6506/MAX6508) V CC I = 800A,V > 4.5V SOURCE CC -1.5 I = 3.2mA, V > 2.5V 0.5 SINK CC Output Voltage Low V V OL I = 5mA, V > 4.5V 0.5 SINK CC 2 MAX6505MAX6508