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TMP112AIDRLR
SOT-5-3 (2.0x1.25mm)
The TMP112AIDRLR from TI is a high-accuracy digital temperature sensor with 12-bit resolution, I2C interface, and 0.5C accuracy in a tiny SOT-5-3 package for thermal management.
| الحزمة | SOT-5-3 (2.0×1.25mm) |
The TMP112AIDRLR from TI is a high-accuracy digital temperature sensor with 12-bit resolution, I2C interface, and 0.5C accuracy in a tiny SOT-5-3 package for thermal management.
The TMP112AIDRLR is a digital temperature sensor from Texas Instruments in SOT-5-3 (2.0×1.25mm), providing 12-bit (0.0625C) resolution over I2C with +/-0.5C accuracy from -20C to +85C (A-grade). The device uses a bandgap temperature sensor whose output is digitized by a delta-sigma ADC. The conversion time is 29ms per reading in normal mode, or 26us in continuous mode at 8 samples/second. The I2C interface supports 400kHz Fast-mode with two address pins (allowing 4 devices on the same bus). The ALERT pin provides programmable over/under-temperature detection: the user sets T_HIGH and T_LOW thresholds via I2C registers, and the ALERT pin asserts when the temperature exceeds T_HIGH or drops below T_LOW. The alert mode can be configured as comparator (real-time) or interrupt (latched until read). The extended mode provides 13-bit resolution (0.03125C) over -55C to +150C range. The shutdown mode reduces current to 1uA while preserving register settings. The one-shot mode performs a single conversion and returns to shutdown, ideal for battery-powered applications. The -AIDRLR suffix specifies A-grade, SOT-5-3, tape-and-reel. The tiny SOT-5-3 package (2.0×1.25mm) is 60% smaller than SOT-23-5, making it ideal for space-constrained designs. Applications include: battery temperature monitoring, ambient temperature sensing, and thermal protection in portable devices.
| دبوس | الاسم | النوع | الوظيفة |
|---|---|---|---|
| 1 | SCL | المدخلات | I2C serial clock (open-drain, requires external pull-up resistor) |
| 2 | GND | الطاقة | أرضي |
| 3 | ALERT | المخرجات | Alert/interrupt output (open-drain, active when temp exceeds threshold) |
| 4 | SDA | الإدخال/الإخراج | I2C serial data (bidirectional, open-drain, requires external pull-up) |
| 5 | V+ | الطاقة | Supply (1.4-3.6V, typical 3.3V, 10uA active, 1uA shutdown) |
| الشركة المصنعة | رقم الجزء | الحزمة | الملاحظات |
|---|---|---|---|
| تكساس إنسترومنتس | TMP112AIDRLR | SOT-5-3 | Same device, TI brand |
| تكساس إنسترومنتس | TMP112BIDRLR | SOT-5-3 | B-grade, +/-0.5C accuracy (better than A) |
| الأجهزة التناظرية | ADT7420IRTZ-RL7 | LFCSP-16 | 16-bit, +/-0.25C, ADI brand |
| مكسيم | MAX31875MRN0+ | SOT-23-5 | 1-wire/SMBus, 16-bit, Maxim brand |
| الرقاقة الدقيقة | MCP9808T-E/MS | MSOP-8 | I2C, +/-0.25C, Microchip brand |
العلامة التجارية:
الحزمة:
دورة الشحن 3 ~ 7 أيام
الحد الأدنى للطلب هو 1
العلامة التجارية:
الحزمة:
دورة الشحن 3 ~ 7 أيام
الحد الأدنى للطلب هو 1
العلامة التجارية:
الحزمة:
دورة الشحن 3 ~ 7 أيام
الحد الأدنى للطلب هو 1
العلامة التجارية:
الحزمة:
دورة الشحن 3 ~ 7 أيام
الحد الأدنى للطلب هو 1
العلامة التجارية:
الحزمة:
دورة الشحن 3 ~ 7 أيام
الحد الأدنى للطلب هو 1
العلامة التجارية:
الحزمة:
دورة الشحن 3 ~ 7 أيام
الحد الأدنى للطلب هو 1
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