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TMP422AMDCNTEP 데이터시트(PDF) 3 Page - Texas Instruments |
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TMP422AMDCNTEP 데이터시트(HTML) 3 Page - Texas Instruments |
3 / 28 page TMP422-EP www.ti.com SBOS577 – SEPTEMBER 2011 ELECTRICAL CHARACTERISTICS At TA = –55°C to +125°C and VS = 2.7V to 5.5V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNIT TEMPERATURE ERROR Local Temperature Sensor TELOCAL TA = –55°C to +125°C ±1.25 ±2.5 °C Remote Temperature Sensor(1) TEREMOTE TA = +15°C to +85°C, TD = –55°C to +125°C, VS = 3.3V 0.25 ±1 °C TA = –55°C to +125°C, TD = –55°C to +125°C, VS = 3.3V ±1 ±3 °C TA = –55°C to +125°C, TD = –55°C to +125°C ±3 ±5 °C vs Supply (Local/Remote) VS = 2.7V to 5.5V ±0.2 ±0.72 °C/V TEMPERATURE MEASUREMENT Conversion Time (per channel) 100 115 130 ms Resolution Local Temperature Sensor (programmable) 12 Bits Remote Temperature Sensor 12 Bits Remote Sensor Source Currents High Series Resistance 3k Ω Max 120 μA Medium High 60 μA Medium Low 12 μA Low 6 μA Remote Transistor Ideality Factor η Optimized Ideality Factor 1.008 SMBus INTERFACE Logic Input High Voltage (SCL, SDA) VIH 2.1 V Logic Input Low Voltage (SCL, SDA) VIL 0.8 V Hysteresis 500 mV SMBus Output Low Sink Current 6 mA SDA Output Low Voltage VOL IOUT = 6mA 0.15 0.4 V Logic Input Current 0 ≤ VIN ≤ 6V –1 +1 μA SMBus Input Capacitance (SCL, SDA) 3 pF SMBus Clock Frequency 3.4 MHz SMBus Timeout 25 30 35 ms SCL Falling Edge to SDA Valid Time 1 μs DIGITAL INPUTS Input Capacitance 3 pF Input Logic Levels Input High Voltage VIH 0.7(V+) (V+)+0.5 V Input Low Voltage VIL –0.5 0.3(V+) V Leakage Input Current IIN 0V ≤ VIN ≤ VS 1 μA POWER SUPPLY Specified Voltage Range VS 2.7 5.5 V Quiescent Current IQ 0.0625 Conversions per Second 32 38 μA Eight Conversions per Second 400 525 μA Serial Bus Inactive, Shutdown Mode 3 10 μA Serial Bus Active, fS = 400kHz, Shutdown Mode 90 μA Serial Bus Active, fS = 3.4MHz, Shutdown Mode 350 μA Undervoltage Lockout UVLO 2.3 2.4 2.6 V Power-On Reset Threshold POR 1.6 2.3 V TEMPERATURE RANGE Specified Range –55 +125 °C Thermal Resistance, θJA 164 °C/W junction-to-ambient SOT23 Thermal Resistance, junction-to-case θJC 108 °C/W SOT23 (1) Tested with less than 5 Ω effective series resistance and 100pF differential input capacitance. Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): TMP422-EP |
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