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SS8018 데이터시트(PDF) 1 Page - Silicon Standard Corp. |
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SS8018 데이터시트(HTML) 1 Page - Silicon Standard Corp. |
1 / 14 page www.SiliconStandard.com 1 of 14 SS8018 ±1°C Remote and Local Temperature Sensor with SMBus Serial Interface n FEATURES n DESCRIPTION n Two channels: measures both remote and local temperatures n No calibration required n SMBus 2-wire serial interface n Programmable under/over-temperature alarms n SMBus alert response supported n Accuracy: ±1°C (+60°C to +100°C, remote) ±3°C (+60°C to + 100°C, local) n Average supply current during conversion of 320µA (typ) n Supply range of +3V to +5.5V n Small 8-lead SO package The SS8018 is a precise digital thermometer that re- ports the temperature of both a remote sensor and its own package. The remote sensor is a diode-connected transistor - typically a low-cost, easily mounted 2N3904 NPN type that replaces a conventional thermistor or thermocouple. Remote accuracy is ±1°C with no calibra- tion needed. The remote channel can also measure the die temperature of other ICs, such as microprocessors, that contain an on-chip, diode-connected transistor. The 2-wire serial interface accepts standard System Management Bus (SMBus) Write Byte, Read Byte, Send Byte, and Receive Byte commands to program the alarm thresholds and to read temperature data. The data format is 11bits plus sign, with each bit corre- sponding to 0.125°C, in two’s-complement format. Measurements can be done automatically and autono- mously, with the conversion rate programmed by the user or programmed to operate in a single-shot mode. The adjustable rate allows the user to control the supply current drain. The SS8018 is available in a small 8-pin SOP sur- face-mount package. n APPLICATIONS Desktop and Notebook Central Office Computers Telecom Equipment Smart Battery Packs Test and Measurement LAN Servers Multi-Chip Modules Industrial Controllers PACKING TYPE TR: TAPE & REEL SS8018XX Example: SS8018TR à SS8018 shipped in tape & reel packing n ORDERING INFORMATION Rev.2.01 6/06/2003 |
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