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说明
EMC1701是一种具有精确温度测量功能的组合式高侧电流传感设备。它测量外部感测电阻器两端产生的电压，以表示电池或电压调节器的高侧电流。EMC1701还测量总线电压，并使用这些测量值进行比例功率计算。EMC1701包含额外的双向峰值检测电路，用于标记具有可编程持续时间和幅度阈值的瞬时电流尖峰。最后，EMC1701包括用于环境温度测量的内部二极管通道。
电流传感和温度监测都包括两层保护：一层可以屏蔽并导致ALERT#引脚被断言，另一层不能屏蔽并导致THERM#引脚被断定。
特性
- Bi-directional current measurement
- Measures bus voltage
- 1% current measurement accuracy
- Integrated over 82ms to 2.6sec with 11-bit resolution
- 3V to 24V voltage bus voltage range
- Calculates proportional power
- Software controls to program time duration and magnitude threshold
- Bus or separately powered for low voltage operation
- Wide temperature operating range: -40°C to +85°C
- ±1°C accuracy (-5°C < TA < 85°C)
- ALERT# and THERM# outputs for temperature, voltage, and out-of-current limit reporting
- Pin-selectable SMBus Address
- Block Read and Write
- Available in a 12-pin 4mm x 4mm QFN RoHS Compliant Package (EMC1701-1)
- Available in a 10-pin MSOP RoHS Compliant Package (EMC1701-2)
- Notebook and Desktop Computers
- Industrial
- Power Management Systems
- Embedded Applications
参数
类型 | 描述 |
Description | Current/DC Power Sensor with Temperature Monitoring |
Vsense min FSR (mV) | -10, -20, -40, -80 |
Vsense max FSR (mV) | 10, 20, 40, 80 |
Vsense accuracy (% FSR, max) | 0.9 |
Vbus Range min (V) | 3 |
Vbus Range max (V) | 24 |
Vbus accuracy (% FSR, max) | 0.05 |
Sampling Interval min (msec) | 2.5 |
Sampling Interval max (msec) | 2600 |
Remote Temperature Monitors | 3 |
# Ambient Temperature Monitors | 1 |
Temperature Accuracy Typical (°) | 0.25 |
Temperature Accuracy Max (°) | 1 |
Alert/Therm | 2 |
Peak Detection | Hardware |
Accumulator? | No |
Interface | SMBus/I2C |
Address Select | 15 |
# Current Channel | 1 |
ADC Resolution (bit) | 11 |
