Part # MAX6648-MAX6692 datasheet

Part Manufacturer: Maxim


Part Description: MAX6648-92 DS

Part Details:

19-2545; Rev 4; 6/08 Precision SMBus-Compatible Remote/Local Temperature Sensors with Overtemperature Alarms MAX6648/MAX6692 General Description Features The MAX6648/MAX6692 are precise, two-channel digi- o Dual Channel Measures Remote and Local tal temperature sensors. They accurately measure the Temperature temperature of their own die and a remote PN junction, o +0.125°C Resolution and report the temperature in digital form using a 2-wire o High Accuracy ±0.8°C (max) from +25°C to +125°C serial interface. The remote PN junction is typically the (Remote), and ±2°C (max) from +60°C to +100°C emitter-base junction of a common-collector PNP on a (Local) CPU, FPGA, or ASIC. o Two Alarm Outputs: ALERT and OVERT The 2-wire serial interface accepts standard System o Two Default OVERT Thresholds Available Management Bus (SMBus)TM write byte, read byte, MAX6648: +110°C send byte, and receive byte commands to read the MAX6692: +85°C temperature data and to program the alarm thresholds.To enhance system reliability, the MAX6648/MAX6692 o Programmable Conversion Rate include an SMBus timeout. A fault queue prevents the o SMBus-Compatible Interface ALERT and OVERT outputs from setting until a fault has o SMBus Timeout been detected one, two, or three consecutive times o Programmable Under/Overtemperature Alarm (programmable). Thresholds The MAX6648/MAX6692 provide two system alarms: o ALERT Compatible with 90nm, 65nm, and 45nm Process and OVERT. ALERT asserts when any of four tem- Technology perature conditions are violated: local overtemperature,remote overtemperature, local undertemperature, orremote undertemperature. OVERT asserts when the tem- Ordering Information perature rises above the value in either of the two OVERTlimit registers. The OVERT output can be used to activate PIN- MEASURED PART a cooling fan, or to trigger a system shutdown. PACKAGE TEMP RANGE Measurements can be done autonomously, with the MAX6648MUA 8 µMAX 0°C to +125°C

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MAX6648-MAX6692.pdf Datasheet