ZHCSB68A June 2013 – December 2014 TMP451
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 修訂歷史記錄
- 5 Pin Configuration and Functions
- 6 Specifications
-
7 Detailed Description
- 7.1 Overview
- 7.2 Functional Block Diagram
- 7.3 Feature Description
- 7.4 Device Functional Modes
- 7.5 Programming
- 7.6
Register Map
- 7.6.1
Register Information
- 7.6.1.1 Pointer Register
- 7.6.1.2 Temperature Registers
- 7.6.1.3 Local Temperature High Byte Register (offset: Read = 00h; Write = N/A) [reset = 00h]
- 7.6.1.4 Remote Temperature High Byte Register (offset: Read = 01h; Write = N/A) [reset = 00h]
- 7.6.1.5 Status Register (offset: Read = 02h; Write = N/A) [reset = N/A]
- 7.6.1.6 Configuration Register (offset: Read = 03h; Write = 09h) [reset = 00h]
- 7.6.1.7 Conversion Rate Register (offset: Read = 04h; Write = 0Ah) [reset = 08h]
- 7.6.1.8 Local Temperature High Limit Register (offset: Read = 05h; Write = 0Bh) [reset = 55h]
- 7.6.1.9 Local Temperature Low Limit Register (offset: Read = 06h; Write = 0Ch) [reset = 00h]
- 7.6.1.10 Remote Temperature High Limit High Byte Register (offset: Read = 07h; Write = 0Dh) [reset = 55h]
- 7.6.1.11 Remote Temperature Low Limit High Byte Register (offset: Read = 08h; Write = 0Eh) [reset = 00h]
- 7.6.1.12 One-shot Start Register (offset: Read = N/A; Write = 0Fh) [reset = N/A]
- 7.6.1.13 Remote Temperature Low Byte Register (offset: Read = 10h; Write = N/A) [reset = 00h]
- 7.6.1.14 Remote Temperature Offset High Byte Register (offset: Read = 11h; Write = 11h) [reset = 00h]
- 7.6.1.15 Remote Temperature Offset Low Byte Register (offset: Read = 12h; Write = 12h) [reset = 00h]
- 7.6.1.16 Remote Temperature High Limit Low Byte Register (offset: Read = 13h; Write = 13h) [reset = 00h]
- 7.6.1.17 Remote Temperature Low Limit Low Byte Register (offset: Read = 14h; Write = 14h) [reset = 00h]
- 7.6.1.18 Local Temperature Low Byte Register (offset: Read = 15h; Write = N/A) [reset = 00h]
- 7.6.1.19 Remote Temperature THERM Limit Register (offset: Read = 19h; Write = 19h) [reset = 6C]
- 7.6.1.20 Local Temperature THERM Limit Register (offset: Read = 20h; Write = 20h) [reset = 55]
- 7.6.1.21 THERM Hysteresis Register (offset: Read = 21h; Write = 21h) [reset = 0Ah]
- 7.6.1.22 Consecutive ALERT Register (offset: Read = 22h; Write = 22h) [reset = 01h]
- 7.6.1.23 η-Factor Correction Register (offset: Read = 23h; Write = 23h) [reset = 00h]
- 7.6.1.24 Digital Filter Control Register (offset: Read = 24h; Write = 24h) [reset = 00h]
- 7.6.1.25 Manufacturer ID Register (offset: Read = FEh; Write = N/A) [reset = 55]
- 7.6.1
Register Information
- 8 Application and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11器件和文檔支持
- 12機械封裝和可訂購信息
1 特性
- 本地和遠程二極管傳感器精度為 ±1°C
- 本地和遠程通道的分辨率為 0.0625°C
- 1.7V 至 3.6V 電源和邏輯電壓范圍
- 27µA 運行電流，3µA 關斷電流
- 串聯電阻抵消
- η 因子和偏移校正
- 可編程數字濾波器
- 二極管故障檢測
- 兩線制和 SMBus™ 串行接口
- 8 引線超薄小外形尺寸 (WSON)（超薄四方扁平 (WQFN)）封裝
2 應用
- 處理器和現場可編程柵極陣列 (FPGA) 溫度監視
- 智能手機和平板電腦
- 服務器、臺式機和筆記本電腦
- 電信設備以及存儲局域網 (SAN)
3 說明
TMP451 器件是一款高精度低功耗遠程溫度傳感器監控器，內置有一個本地溫度傳感器。 這類遠程溫度傳感器通常采用低成本離散式 NPN 或 PNP 晶體管，或者基板熱晶體管或二極管，這些器件都是微處理器、微控制器或 FPGA 的組成部件。 本地和遠程傳感器均用 12 位數字編碼表示溫度，分辨率為 0.0625°C。 對于本地和遠程溫度傳感器，在典型運行范圍內，溫度精度為 ±1°C（最大值）。 此兩線制串口接受 SMBus 通信協議。
諸如串聯電阻抵消、可編程非線性因子（η 因子）、可編程偏移、可編程溫度限制和一個可編程數字濾波器等的高級特性被組合在一起以提供一個具有更佳準確度和抗擾度的穩健耐用熱度監控解決方案。
TMP451 器件適用于多個位置和多種汽車子系統中的高精度溫度測量。 此器件的額定運行電源電壓范圍為 1.7V 至 3.6V，額定工作溫度范圍為 -40°C 至 125°C。
器件信息(1)
| 器件型號 | 封裝 | 封裝尺寸（標稱值） |
|---|---|---|
| TMP451 | WSON (8) | 2.00mm x 2.00mm |
- 要了解所有可用封裝，請見數據表末尾的可訂購產品附錄。
簡化電路原理圖
