產品詳細資料

Setpoint type Resistor Programmable Setpoint value (°C) 30 to 105, 30 to 124 Operating temperature range (°C) -55 to 130 Accuracy over temp range (max) (°C) 1.5 Output type Open drain Supply voltage (min) (V) 1.62 Supply voltage (max) (V) 5.5 Supply current (typ) (µA) 0.5 Number of comparator channels 2 Features Built-in hysteresis Rating Catalog Interface type Switch
Setpoint type Resistor Programmable Setpoint value (°C) 30 to 105, 30 to 124 Operating temperature range (°C) -55 to 130 Accuracy over temp range (max) (°C) 1.5 Output type Open drain Supply voltage (min) (V) 1.62 Supply voltage (max) (V) 5.5 Supply current (typ) (µA) 0.5 Number of comparator channels 2 Features Built-in hysteresis Rating Catalog Interface type Switch
SOT-5X3 (DRL) 6 2.56 mm² 1.6 x 1.6
  • Resistor programmable temperature trip points and hysteresis options
    • Resistor tolerances contribute zero error
    • Hysteresis options: 5°C, 10°C and 20°C
  • Dual outputs for overtemperature detection
    • Channel A (overtemperature-hot): +30 to +124°C, 2°C steps
    • Channel B (overtemperature-warm): +30 to +105°C, 5°C steps
  • Accuracy level options (maximum at +30°C to +130°C):
    • A2 Level: ±3.0°C (±1.5°C from +30°C to +70°C)
    • A3 Level: ±3.5°C (±2.0°C from +30°C to +70°C)
  • Ultra-low power consumption: 0.5 µA typical at 25°C
  • Supply voltage: 1.62 to 5.5 V
  • Open-drain outputs
  • Trip test function enables in-system testing
  • Available in a SOT-563 (1.60-mm × 1.20-mm),
    6-pin package
  • Resistor programmable temperature trip points and hysteresis options
    • Resistor tolerances contribute zero error
    • Hysteresis options: 5°C, 10°C and 20°C
  • Dual outputs for overtemperature detection
    • Channel A (overtemperature-hot): +30 to +124°C, 2°C steps
    • Channel B (overtemperature-warm): +30 to +105°C, 5°C steps
  • Accuracy level options (maximum at +30°C to +130°C):
    • A2 Level: ±3.0°C (±1.5°C from +30°C to +70°C)
    • A3 Level: ±3.5°C (±2.0°C from +30°C to +70°C)
  • Ultra-low power consumption: 0.5 µA typical at 25°C
  • Supply voltage: 1.62 to 5.5 V
  • Open-drain outputs
  • Trip test function enables in-system testing
  • Available in a SOT-563 (1.60-mm × 1.20-mm),
    6-pin package

The TMP392 device is part of a family of ultra-low power, dual channel, resistor programmable temperature switches that enable protection and detection of system thermal events from 30°C to 130°C. The TMP392 offers dual overtemperature (hot and warm) detection. The trip temperatures (TTRIP) and thermal hysteresis (THYST) options are programmed by two E96-series resistors (1% tolerance) on the SETA and SETB pins. Channel A resistors can range from 1.05 KΩ to 909 KΩ, representing one of 48 unique values. Channel B resistors can range from 10.5 KΩ to 909 KΩ

The value of the resistor to ground on SETA input sets the TTRIP threshold of Channel A. The value of the resistor to ground on SETB input sets the TTRIP threshold of Channel B, as well as the THYST options of 5°C, or 10°C for both channels, to prevent undesired digital output switching. When the SETB input is connected to ground, Channel A operates with 20°C hysteresis. Resistors accuracy has no impact to TTRIP accuracy.

To enable customer board-level manufacturing, the TMP392 supports a trip test function where the digital outputs are activated by exercising the SETA or SETB pin.

The TMP392 device is part of a family of ultra-low power, dual channel, resistor programmable temperature switches that enable protection and detection of system thermal events from 30°C to 130°C. The TMP392 offers dual overtemperature (hot and warm) detection. The trip temperatures (TTRIP) and thermal hysteresis (THYST) options are programmed by two E96-series resistors (1% tolerance) on the SETA and SETB pins. Channel A resistors can range from 1.05 KΩ to 909 KΩ, representing one of 48 unique values. Channel B resistors can range from 10.5 KΩ to 909 KΩ

The value of the resistor to ground on SETA input sets the TTRIP threshold of Channel A. The value of the resistor to ground on SETB input sets the TTRIP threshold of Channel B, as well as the THYST options of 5°C, or 10°C for both channels, to prevent undesired digital output switching. When the SETB input is connected to ground, Channel A operates with 20°C hysteresis. Resistors accuracy has no impact to TTRIP accuracy.

To enable customer board-level manufacturing, the TMP392 supports a trip test function where the digital outputs are activated by exercising the SETA or SETB pin.

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類型 標題 日期
* Data sheet TMP392 Ultra-Small, Dual-Channel (Hot and Warm Trip), 0.5-µA, Resistor-Programmable Temperature Switch datasheet PDF | HTML 2019年 11月 15日
Application note System Optimization Through Integrated Solutions for Temp. Threshold Detection PDF | HTML 2021年 7月 13日
Certificate TMP392EVM EU Declaration of Conformity (DoC) 2020年 5月 6日

設計與開發

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開發板

TMP390EVM — TMP390 雙跳閘電阻器可編程溫度開關評估模組

TMP390 評估模組 (EVM) 是一款隨插即用系統,用於測試和評估 TMP390 類比溫度開關。TMP390EVM 具有可用於雙通道開關的電阻器可程式化輸入,具有熱冷跳脫設定。

EVM 可插入 USB 埠為電路板供電,也可從外部供電。

兩個通道皆可使用 TMP390 輸出端 LED 指示燈的板載按鈕進行跳脫測試,以顯示感測器何時跳脫。感測器位於可與主 PCB 電路板分離的分線板上,以進行原型設計。

TMP390EVM 不需要進行任何校準或軟體編程,因為跳脫點是由電阻器以實體方式設定,可以更換電阻器以在其他溫度閾值下進行測試。

使用指南: PDF | HTML
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開發板

TMP392EVM — TMP392 雙跳閘電阻器可編程溫度開關評估模組

TMP392 評估套件是一款隨插即用系統,可測試及評估 TMP392 類比溫度開關。EVM 具備可用於雙通道開關的電阻器可程式化輸入,具備熱及溫跳脫設定,可保護兩種不同的過熱情況,或用作過熱關機/警告。EVM 可插入 USB 埠,為電路板供電,也可從外部供電。兩個通道皆可使用 TMP392 輸出端 LED 指示燈的板載推壓按鈕進行跳脫測試,以顯示感測器何時跳脫。感測器位於分線板上,可與主 PCB 電路板分離以進行原型設計。TMP392EVM 不需要進行任何校準或軟體程式編寫,因為跳脫點是由電阻器以實體方式設定,電阻器可以更換以利在其他溫度閾值下進行測試。
使用指南: PDF
TI.com 無法提供
參考設計

TIDA-050059 — 適用於固態繼電器的過電流與過熱防護參考設計

此參考設計顯示如何實現固態繼電器的過電流與過熱防護。參考設計配備 TPSI3050-Q1 5-kVRMS 強化型隔離開關驅動器。TPSI3050-Q1 裝置整合了層壓變壓器,在將訊號和電源傳輸至二次側時實現隔離。如此就不需要任何隔離偏壓電源。此外,TPSI3050-Q1 裝置可爲位於高電壓 (HV) 側的外部電路提供電源。此參考設計最多可支援 500-VDC 或 350-VAC 切換,具最大值為 4-A 負載條件。
Design guide: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
SOT-5X3 (DRL) 6 Ultra Librarian

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