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TC622VOA Datasheet(PDF) 2 Page - TelCom Semiconductor, Inc |
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TC622VOA Datasheet(HTML) 2 Page - TelCom Semiconductor, Inc |
2 / 3 page 2-22 TELCOM SEMICONDUCTOR, INC. ELECTRICAL CHARACTERISTICS (Over Operating Temperature Range, unless otherwise specified.) Parameter Conditions Min Typ Max Unit Supply Voltage Range TC622 4.5 — 18 V TC624 2.7 4.5 Supply Current TC622 5.0V ≤ VDD ≤ 18V — 200 600 µA TC624 2.7V ≤ VDD ≤ 4.5V — 170 300 VOH TC622 5.0V ≤ VDD ≤ 18V, – 40 °C ≤ TA ≤ +125°C, IOH = 250µA 0.90 x VDD —— V IOH = 500µA 0.80 x VDD —— VOL TC622 – 40 °C ≤ TA ≤ +85°C, IOL = 500µA — — 0.15 x VDD V IOL = 1mA — — 0.30 x VDD – 40 °C ≤ TA ≤ +125°C, IOL = 1mA — — 0.35 x VDD VOH TC624 2.7V ≤ VDD ≤ 4.5V, – 40 °C ≤ TA ≤ +125°C, IOH = 250µA 0.9 x VDD —— V IOH = 500µA 0.8 x VDD —— VOL TC624 – 40 °C ≤ TA ≤ +85°C, IOL = 500µA — — 0.1 x VDD V IOL = 1mA — — 0.2 x VDD – 40 °C ≤ TA ≤ +125°C, IOL = 1mA — — 0.25 x VDD Absolute Accuracy TC622 TSET = Programmed Temperature T – 5 T ± 1 T + 5 °C TC624 TSET = Programmed Temperature T – 5 T ± 1 T + 5 Trip Point Hysteresis TC622 — 2 — °C TC624 — 2 — ABSOLUTE MAXIMUM RATINGS* Supply Voltage (TC622) .............................................20V (TC624) ........................................... 5.5V Input Voltage Any Input ....... (GND – 0.3V) to (VDD +0.3V) Operating Temperature ......................... – 40 °C to +125°C C Version ............................................... 0 °C to +70°C E Version .......................................... – 40 °C to +85°C V Version ........................................ – 40 °C to +125°C Maximum Junction Temperature ........................... +150 °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. Storage Temperature ............................ – 65 °C to +150°C Lead Temperature (Soldering, 10 sec) ................. +300 °C The TC622 and TC624 are single point temperature detectors ideal for use in a wide variety of applications. When the temperature of the device exceeds the pro- grammed temperature trip point, TSET, the OUT and OUT outputs are driven into their active states. The desired trip- point temperature is programmed with a single external resistor connected between the TSET input and VCC. The relationship between the resistor value and the trip point temperature is given by the equation below. RTRIP = 0.5997 x T 2.1312 Where Rtrip = Programming resistor value in Ohms T = Desired trip temperature in degrees Kelvin. For example, to program the device to trip at 50 °C, the programming resistor is: RTRIP = 0.5997 x ((50 + 273.15)2.1312) = 133,652 Ω DETAILED DESCRIPTION LOW COST, SINGLE TRIP POINT TEMPERATURE SENSOR TC622 TC624 |
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