2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller

General Description The MAX6639 monitors its own temperature and one external diode-connected transistor or the temperatures of two external diode-connected transistors, typically available in CPUs, FPGAs, or GPUs. Features ? Two Thermal-Diode Inputs ? Up to 25kHz PWM Output Frequency ? Three

文件：282.43 Kbytes 頁數(shù)：22 Pages

MAXIM

美信

2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller

文件：203.34 Kbytes 頁數(shù)：22 Pages

MAXIM

美信

2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller

文件：325.95 Kbytes 頁數(shù)：24 Pages

MAXIM

美信

Evaluation Kit

文件：391.79 Kbytes 頁數(shù)：18 Pages

MAXIM

美信

2通道溫度監(jiān)測器，提供雙路、自動PWM風(fēng)扇速度控制器

MAX6639可以監(jiān)視自身溫度和一路外部連接成二極管的晶體管溫度，或兩路外部連接成二極管的晶體管溫度，這種晶體管通常內(nèi)置于CPU、FPGA或GPU。2線串口采用標(biāo)準(zhǔn)的系統(tǒng)管理總線(SMBus?)，可執(zhí)行寫字節(jié)、讀字節(jié)、發(fā)送字節(jié)以及接收字節(jié)命令，以讀取溫度數(shù)據(jù)、設(shè)置報警門限。可在任意時刻通過SMBus讀取溫度數(shù)據(jù)，三個可編程報警輸出用于產(chǎn)生中斷、禁止或高溫關(guān)斷信號。\n\n 內(nèi)部雙路PWM風(fēng)扇轉(zhuǎn)速控制器根據(jù)溫度數(shù)據(jù)可調(diào)節(jié)兩個冷卻風(fēng)扇的轉(zhuǎn)速，系統(tǒng)運行在致冷狀態(tài)時能夠?qū)L(fēng)扇噪聲降至最小，而在功耗上升時還可提供最大的致冷效果。通過風(fēng)扇轉(zhuǎn)速反饋實現(xiàn)速率調(diào)節(jié)，以便控制風(fēng)扇轉(zhuǎn)速，而不僅僅是PWM占 ? 兩個熱敏二極管輸入\n? 高達(dá)25kHz的PWM輸出頻率\n? 三個可選擇的SMBus地址\n? 本地溫度檢測\n? 1°C遠(yuǎn)程測量溫度精度\n? 兩個PWM輸出用于風(fēng)扇驅(qū)動(開漏，可上拉至+13.5V)\n? 可編程風(fēng)扇控制\n? 自動風(fēng)扇旋轉(zhuǎn)確保風(fēng)扇啟動\n? 受控的轉(zhuǎn)速變化確保平穩(wěn)的風(fēng)扇轉(zhuǎn)速調(diào)節(jié)\n? ±3%風(fēng)扇轉(zhuǎn)速測量精度\n? 溫度檢測始于POR，具有系統(tǒng)失效保護(hù)\n? /OT和/THERM輸出用于禁止或關(guān)斷控制\n? 測量溫度高達(dá)+150°C\n? MAX6639F針對n = 1.021進(jìn)行優(yōu)化，實現(xiàn)Penryn兼容;

ADI

亞德諾

2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller

General Description The MAX6639 monitors its own temperature and one external diode-connected transistor or the temperatures of two external diode-connected transistors, typically available in CPUs, FPGAs, or GPUs. Features ? Two Thermal-Diode Inputs ? Up to 25kHz PWM Output Frequency ? Three

文件：282.43 Kbytes 頁數(shù)：22 Pages

MAXIM

美信

2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller

General Description The MAX6639 monitors its own temperature and one external diode-connected transistor or the temperatures of two external diode-connected transistors, typically available in CPUs, FPGAs, or GPUs. Features ? Two Thermal-Diode Inputs ? Up to 25kHz PWM Output Frequency ? Three

文件：282.43 Kbytes 頁數(shù)：22 Pages

MAXIM

美信

2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller

文件：325.95 Kbytes 頁數(shù)：24 Pages

MAXIM

美信

2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller

文件：203.34 Kbytes 頁數(shù)：22 Pages

MAXIM

美信

Evaluation Kit

文件：391.79 Kbytes 頁數(shù)：18 Pages

MAXIM

美信