전자부품 데이터시트 검색엔진 |
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TC626080VZB 데이터시트(PDF) 2 Page - TelCom Semiconductor, Inc |
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TC626080VZB 데이터시트(HTML) 2 Page - TelCom Semiconductor, Inc |
2 / 2 page 2-30 TELCOM SEMICONDUCTOR, INC. PRELIMINARY INFORMATION ELECTRICAL CHARACTERISTICS: VDD = +5V and TA = – 55°C to +125°C, unless otherwise specified. Parameter Test Conditions Min Typ Max Units Supply Voltage 4.5 — 18 V Supply Current — 300 600 µA Output Resistance Output High or Low — — 75 Ω Output Current Source/Sink, VCC = 18V — — 25 mA Source/Sink, VCC = 4.5V — — 10 mA Absolute Accuracy At trip point T – 3 T T + 3 °C Trip Point Hysteresis 3.5 5 6.5 °C TelCom Semiconductor reserves the right to make changes in the circuitry or specifications detailed in this manual at any time without notice. Minimums and maximums are guaranteed. All other specifications are intended as guidelines only. TelCom Semiconductor assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. DETAILED DESCRIPTION The TC626 output maintains a logic low state when measured temperature is below the factory-programmed setting. As temperature rises, the output is driven active to a high level [VDD – (IOUT)(ROUT)] when temperature equals the setpoint value ±3°C. Built-in hysteresis prevents output "chattering" when measured temperature is at (or near) the trip point (Figure 1). As temperature falls through the trip point, hysteresis main- tains the output high until measured temperature is 5 °C lower than the trip point setting. The TC626VZB (TO-92 package) has a maximum out- put current of 10mA while the TC626VAB has a maximum output current of 50mA. Care must be taken to observe these output current limits as output currents in excess of those stated will cause device self-heating resulting in erroneous temperature measurements. ABSOLUTE MAXIMUM RATINGS* Package Power Dissipation (TA ≤ 70°C) TO-92 ........................................................... 440mW TO-220 ............................................................ 1.6mW Supply Voltage ............................................................ 20V Input Voltage Any Input ...... (GND – 0.3V) to (VDD + 0.3V) Operating Temperature ......................... – 55 °C to +125°C Maximum Junction Temperature ........................... +150 °C Storage Temperature ............................ – 65 °C to +150°C Lead Temperature (Soldering, 10 sec) ................. +300 °C *Stresses above 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 above those indicated in the operation sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. SET POINT (SET POINT – 5 °C) OUTPUT Figure 1. TC626 Operation TEMPERATURE LIMIT SWITCH TC626 |
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