- 您现在的位置：买卖IC网 > PDF目录21999 > DS1780E (Maxim Integrated)IC CPU PERIPHERAL MON 24-TSSOP PDF资料下载
参数资料
| 型号： | DS1780E |
| 厂商： | Maxim Integrated |
| 文件页数： | 13/28页 |
| 文件大小： | 0K |
| 描述： | IC CPU PERIPHERAL MON 24-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 62 |
| 功能： | 温度监控器，CPU 外围设备 |
| 传感器类型： | 内部 |
| 感应温度： | -40°C ~ 125°C |
| 精确度： | ±12°C（最小值） |
| 拓扑： | ADC（三角积分型），比较器，风扇速度控制，寄存器库 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 无 |
| 输出风扇： | 是 |
| 电源电压： | 2.8 V ~ 5.75 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 管件 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页当前第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页
DS1780
1. One-time Interrupt mode: Exceeding hot temperature limit causes an SMI that will remain active
indefinitely until reset by reading Interrupt Status Register 1 or cleared by the INT_Clear bit in the
Configuration register. Once an SMI event has occurred by crossing the hot temperature limit, then
subsequently reset, an SMI will not occur again until the temperature goes below hot temperature
hysteresis (low) limit.
2. Default Interrupt mode: Exceeding hot temperature limit causes an System Management Interrupt
(SMI) that will remain active indefinitely until reset by reading Interrupt Status Register 1 or cleared
by the INT_Clear bit in the Configuration Register. Once an Interrupt event has occurred by crossing
the Hot Temperature limit, then reset, an Interrupt will occur again once the next temperature
conversion has completed. The interrupts will continue to occur in this manner until the temperature
goes below the hot temperature hysteresis value.
3. Comparator mode: Exceeding hot temperature limit causes the SMI output to go active. SMI will
remain active until the temperature goes below the hot temperature limit. Once the temperature goes
below the hot temperature limit, SMI will become inactive. As in the default and one-time interrupt
modes, the SMI can also be cleared by reading Interrupt Status Register 1 or by setting the INT_Clear
bit in the configuration register.
Figure 4 below illustrates the three temperature interrupt modes.
Fan Speed Limits
The host programs 8-bit fan speed low limits for FAN1 and FAN2 inputs into Internal Address Registers
3Bh and 3Ch, respectively. Care must be taken to program the limit with respect to the divisor chosen for
each of the tachometer inputs. Refer to the “OPERATION - FAN Speed Data Format” section for details.
An interrupt will occur if measured fan speed falls below the programmed limit. Due to the nature of the
algorithm implemented, a count of 255 (max) represents a slow (or stopped) fan; i.e., tachometer counts
are inversely proportional to fan speed. Thus, the fan limit register will contain the maximum number of
counts (or the minimum fan speed) before which an interrupt will occur.
Chassis Intrusion Detection
The CHS input is an active high interrupt from any type of device that detects and captures chassis
intrusion violations. This could be accomplished mechanically, optically, or electrically, and circuitry
external to the DS1780 is expected to latch the event.
The design of the DS1780 allows this input to go high even with no power applied to the DS1780, and no
clamping or other interference with the line will occur. This line can also be pulled low for at least 20 ms
by the DS1780 to reset a typical Chassis Intrusion circuit. Accomplish this reset by setting Bit 6 of
Configuration Register high. The bit in the Register is self-clearing.
A possible chassis intrusion detector/latch is shown below in Figure 5.
13 of 28
相关PDF资料 |
PDF描述 |
|---|---|
| EBC08DCAH | CONN EDGECARD 16POS R/A .100 SLD |
| DS1620S | IC THERMOMETER/STAT DIG 8-SOIC |
| EBC08DCAD | CONN EDGECARD 16POS R/A .100 SLD |
| DS1620 | IC THERMOMETER/STAT DIG 8-DIP |
| DS1629S | IC THERM/RTC/CALENDAR DIG 8-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1780E/T&R | 制造商:Maxim Integrated Products 功能描述:PC HARDWARE MONITOR T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC CPU PERIPHERAL MON 24-TSSOP |
| DS1780E/T&R | 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 |
| DS1780E/TR | 制造商:Maxim Integrated Products 功能描述:Data Acquisition System, 6 Channel, 8 Bit, 24 Pin, Plastic, TSSOP |
| DS1780E+ | 功能描述:板上安装温度传感器 CPU Peripheral 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 |
| DS1780E+T&R | 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:TEMP SENSOR DGTL 2-WIRE 24TSSOP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC CPU PERIPHERAL MON 24-TSSOP 制造商:Maxim Integrated Products 功能描述:Board Mount Temperature Sensors CPU Peripheral Monitor |
发布紧急采购，3分钟左右您将得到回复。