Changsha Purple Horn E-Commerce Co., Ltd.
| Temperature Range | -40℃~+125℃ |
| Interface | I2C;SMBus |
| Voltage - Supply | 2.7V~5.5V |
| Description | -40℃~+125℃ 2.7V~5.5V TO-220-5 Analog and Digital Output RoHS |
| Mfr. Part # | TC74A2-3.3VAT |
| Package | TO-220-5 |
| Model Number | TC74A2-3.3VAT |
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Product Specification
| Temperature Range | -40℃~+125℃ | Interface | I2C;SMBus |
| Voltage - Supply | 2.7V~5.5V | Description | -40℃~+125℃ 2.7V~5.5V TO-220-5 Analog and Digital Output RoHS |
| Mfr. Part # | TC74A2-3.3VAT | Package | TO-220-5 |
| Model Number | TC74A2-3.3VAT |
The TC74 is a serially accessible, digital temperature sensor designed for low-cost, small-form-factor applications. It converts temperature data from an onboard thermal sensing element into an 8-bit digital word, accessible via a 2-wire SMBus/I2C compatible serial port. This allows for multi-drop/multi-zone monitoring and features a low-power Standby mode controllable via the SHDN bit. With a temperature resolution of 1C and a nominal conversion rate of 8 samples/sec, the TC74 is ideal for thermal management in various systems.
| Parameter | Symbol | Min | Typ | Max | Units | Conditions |
|---|---|---|---|---|---|---|
| Electrical Characteristics | ||||||
| Power-on Reset Threshold | VPOR | 1.2 | 2.2 | V | VDD Falling Edge or Rising Edge | |
| Supply Voltage | VDD | 2.7 | 5.5 | V | Note 5 | |
| Operating Current | IDD | 200 | 350 | A | VDD = 5.5V, Note 1 | |
| Standby Supply Current | IDD-STANDBY | 5.0 | 10 | A | VDD = 3.3V, Serial Port Inactive, Note 4 | |
| Temperature Accuracy | TERR | 2.0 | C | +25C <TA < +85C | ||
| Temperature Accuracy | TERR | 3.0 | C | 0C < TA < +125C | ||
| Conversion Rate | CR | 4 | 8 | SPS | Note 2 | |
| Logic Input High | VIH | 0.8 x VDD | V | |||
| Logic Input Low | VIL | 0.2 x VDD | V | |||
| SDA Output Low | VOL | 0.4 | V | IOL = 3 mA | ||
| SDA Output Low | VOL | 0.6 | V | IOL = 6 mA, Note 3 | ||
| Input Capacitance | CIN | 5.0 | pF | SDA, SCLK | ||
| I/O Leakage | ILEAK | -1.0 | 0.1 | 1.0 | A | |
| SMBus/I2C Clock Frequency | fSMB | 10 | 100 | kHz | Serial Port AC Timing (CLOAD = 80 pF) | |
| Low Clock Period | tLOW | 4.7 | sec | |||
| High Clock Period | tHIGH | 4.0 | sec | |||
| SMBus/I2C Rise Time | tR | 1000 | nsec | 10% to 90% | ||
| SMBus/I2C Fall Time | tF | 300 | nsec | 90% to 10% | ||
| START Condition Setup Time | tSU(START) | 4.0 | sec | 90% SCLK to 10% SDA | ||
| START Condition Hold Time | tH(START) | 4.0 | sec | |||
| Data In Setup Time | tSU-DATA | 1000 | nsec | |||
| Data In Hold Time | tH-DAT | 1250 | nsec | |||
| STOP Condition Setup Time | tSU(STOP) | 4.0 | sec | |||
| Bus Free Time Prior to New Transition | tIDLE | 4.7 | sec | |||
| Power-on Reset Delay | tPOR | 500 | sec | VDD VPOR (Rising Edge) | ||
| Applications | ||||||
| Thermal Protection | Hard Disk Drives and other PC Peripherals | |||||
| PC Card Devices | Notebook Computers | |||||
| Thermostat Controls | Low Cost | |||||
| Power Supplies | ||||||
| Thermistor Replacement | ||||||
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer
Year Established:
2009
Employee Number:
300~500
Ecer Certification：
Verified Supplier
Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa... Changsha Purple Horn E-Commerce Co., Ltd.. is a professional company focus on integrated circuit ic business. Purple Horn will also responsible with exporting and logistic business. there is professional factory Beijing Silk Road which focus on desigining and manufacture. Founded in 2009, Our compa...
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