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參數資料
| 型號： | MAX1669 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Fan Controller and Remote Temperature Sensor with SMBus Serial Interface |
| 中文描述： | 風扇控制器及遠端溫度傳感器，帶有SMBus串行接口 |
| 文件頁數： | 1/20頁 |
| 文件大?。?/td> | 213K |
| 代理商： | MAX1669 |
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
General Description
The MAX1669 fan controller includes a precise digital
thermometer that reports the temperature of a remote
sensor. The remote sensor is a diode-connected transis-
tor—typically a low-cost, easily mounted 2N3906 PNP
type—replacing conventional thermistors or thermocou-
ples. Remote accuracy is ±3°C for transistors from multi-
ple manufacturers, with no calibration needed. The
MAX1669 has an independent fan controller with a low-
current logic output requiring external power compo-
nents to interface to a DC brushless fan. The fan
controller has two modes of operation: a low-frequency
(20Hz to 160Hz) PWM mode intended for driving the fan
motor, or a high-impedance DAC output that generates
a variable DC control voltage. In PWM mode, the FAN
frequency can be synchronized to an external clock.
Other key features include general-purpose inputs/out-
puts (GPIOs) for fan presence detection and a thermo-
stat output intended as a fan override signal in case the
host system loses the ability to communicate. The inter-
nal ADC has a wide input voltage range and gives
overrange readings when too large an input voltage is
applied. Other error-checking includes temperature
out-of-range indication and diode open/short faults.
The MAX1669 is available in a space-saving 16-pin
QSOP package that allows it to fit adjacent to the
SLOT1 connector.
Applications
Pentium
CPU Cooling
Desktop Computers
Notebook Computers
Servers
Workstations
Features
o
Measures Remote CPU Temperature
o
No Calibration Required
o
20Hz to 160Hz PWM Output for Fan
o
PWM Frequency Sync Input (260kHz)
o
Flexible Fan Interface: Linear or PWM
o
SMBus 2-Wire Serial Interface
o
Programmable Under/Overtemperature Alarms
o
ALERT
Latched Interrupt Output
o
OVERT
Thermostat Output
o
Two GPIO Pins
o
Write-Once Configuration Protection
o
Supports SMBus Alert Response
o
±3°C Temperature Accuracy (-40°C to +125°C,
remote)
o
3μA Standby Supply Current
o
+3V to +5.5V Supply Range
o
Small 16-Pin QSOP Package
M
Fan Controller and Remote Temperature Sensor
with SMBus Serial Interface
________________________________________________________________
Maxim Integrated Products
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
I/O1
OVERT
ALERT
SMBDATA
SMBCLK
PGND
FAN
SYNC
V
CC
TOP VIEW
MAX1669
QSOP
I/O2
ADD0
AGND
ADD1
ADD2
DXN
DXP
19-1574; Rev 0; 1/00
PART
MAX1669EEE
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
16 QSOP
Pentium is a registered trademark of Intel Corp.
Pin Configuration
Ordering Information
Typical Operating Circuit appears at end of data sheet.
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| MAX1673 | Regulated, 125mA-Output, Charge-Pump DC-DC Inverter |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX1669EEE | 制造商:Maxim Integrated Products 功能描述:FAN CONTROLLER AND REMOTE TEMPERATURE SENSOR - Bulk |
| MAX1669EEE+ | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 2-WIRE 16QSOP - Rail/Tube |
| MAX1669EEE+T | 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 2-WIRE 16QSOP - Tape and Reel |
| MAX1669EEE-T | 制造商:Maxim Integrated Products 功能描述:FAN CONTROLLER AND REMOTE TEMPERATURE SENSOR - Tape and Reel |
| MAX166ACPP | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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