- 您现在的位置：买卖IC网 > Datasheet目录44 > MAX6678AEP92+ (Maxim Integrated)IC TEMP MONITOR 2CH PWM 20-QSOP Datasheet资料下载
参数资料
| 型号： | MAX6678AEP92+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/19页 |
| 文件大小： | 669K |
| 描述： | IC TEMP MONITOR 2CH PWM 20-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 功能： | 温度监控器 |
| 传感器类型： | 内部和外部 |
| 精确度： | ±4°C（最小值） |
| 输出类型： | SMBus? |
| 输出警报： | 是 |
| 输出风扇： | 是 |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 20-QSOP |
| 包装： | 管件 |
General Description
The MAX6678 monitors its own temperature and the
temperatures of two external diode-connected transis-
tors, which typically reside on the die of a CPU or other
integrated circuit. The device reports temperature values
in digital form using a 2-wire serial interface. The
MAX6678 provides a programmable alarm output to gen-
erate interrupts, throttle signals, or overtemperature shut-
down signals.
The 2-wire serial interface accepts standard System
Management Bus (SMBus)
"
write byte, read byte, send
byte, and receive byte commands to read the tempera-
ture data and program the alarm thresholds. The tem-
perature data controls a PWM output signal to adjust
the speed of a cooling fan, thereby minimizing noise
when the system is running cool, but providing maxi-
mum cooling when power dissipation increases.
Five GPIO pins provide additional flexibility. The GPIO
power-up states are set by connecting the GPIO preset
inputs to ground or V
CC
.
The MAX6678 is available in a 20-pin QSOP package
and a 5mm x 5mm thin QFN package. It operates from
3.0V to 5.5V and consumes just 500礎 of supply current.
Applications
Desktop Computers
Notebook Computers
Workstations
Servers
Networking Equipment
Features
f Two Thermal-Diode Inputs
f Local Temperature Sensor
f Five GPIO Input/Outputs
f Two PWM Outputs for Fan Drive (Open Drain; May
Be Pulled Up to +5V)
f Programmable Fan-Control Characteristics
f Automatic Fan Spin-Up Ensures Fan Start
f Controlled Rate of Change Ensures Unobtrusive
Fan-Speed Adjustments
f 1?SPAN class="pst MAX6678AEP92-_2614429_3">C Remote Temperature Accuracy (+60?SPAN class="pst MAX6678AEP92-_2614429_3">C to
+145?/SPAN>C)
f Temperature Monitoring Begins at POR for Fail-
Safe System Protection
f OT Output for Throttling or Shutdown
f Four Versions Available, Each with a Different
Address
f 5mm x 5mm TQFN Package
2-Channel Temperature Monitor with Dual Automatic
PWM Fan-Speed Controller and Five GPIOs
________________________________________________________________ Maxim Integrated Products 1
20 19 18 17
16
13
12
11
14
15
GPIO3
GPIO2
GPIO1
OT
PRESET0
4
3
2
1
PRESET4
GPIO4
SMBCLK
SMBDATA
5
DXP1
6
7
8
9
10
MAX6678
*CONNECT EXPOSED
PADDLE TO GND
TOP VIEW
5mm x 5mm THIN QFN
Pin Configurations
Ordering Information
19-3306; Rev 0; 5/04
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxims website at www.maxim-ic.com.
*EP = Exposed paddle.
PART
TEMP RANGE
PIN-
PACKAGE
SMBus
ADDRESS
MAX6678AEP90 -40癈 to +125癈 20 QSOP
1001000
MAX6678AEP92 -40癈 to +125癈 20 QSOP
1001001
MAX6678AEP94 -40癈 to +125癈 20 QSOP
1001010
MAX6678AEP96 -40癈 to +125癈 20 QSOP
1001011
MAX6678ATP90 -40癈 to +125癈
20 Thin
QFN-EP*
1001000
MAX6678ATP92 -40癈 to +125癈
20 Thin
QFN-EP*
1001001
MAX6678ATP94 -40癈 to +125癈
20 Thin
QFN-EP*
1001010
MAX6678ATP96 -40癈 to +125癈
20 Thin
QFN-EP*
1001011
SMBus is a trademark of Intel Corp.
Pin Configurations continued at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
相关PDF资料 |
PDF描述 |
|---|---|
| MAX6681MEE+ | IC TEMP SENSOR SMBUS 16-QSOP |
| MAX6689UP34+ | IC 7CH PREC TEMP MONITOR 20TSSOP |
| MAX6690MEE+ | IC TEMP SENSOR SMBUS 16-QSOP |
| MAX6692YMSA+ | IC SENSOR REMOTE SMBUS 8SOIC |
| MAX6693UP9A+T | IC TEMP MONITOR 7CH 20-TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6678AEP92+ | 功能描述:板上安装温度传感器 2Ch Temperature Monitor RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6678AEP92+T | 功能描述:板上安装温度传感器 2Ch Temperature Monitor RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6678AEP92-T | 功能描述:板上安装温度传感器 2Ch Temperature Monitor RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6678AEP94 | 功能描述:板上安装温度传感器 RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| MAX6678AEP94+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
发布紧急采购，3分钟左右您将得到回复。