特性
- On-chip coil sensor
- Low noise density: En = 50nV/√Hz at 10Hz
- Low supply voltage: VS = 2.7V to 3.6V
- Temperature range: -40°C to +105°C
- Small 16 Ld TSSOP package
描述
The RAA788000 is a low-power, power-line current sensor for contactless AC current measurements in the range of 2A to 5000A. The device consists of an on-chip Rogowski coil, a buffer amplifier, and a signal amplifier.
From an alternating power-line current, the magnetic flux flows through the on-chip coil, generating an electromotive force (EMF) that is amplified and filtered by a signal amplifier.
The amplifier output is typically fed into an analog-to-digital converter with a subsequent signal processor that calculates the current magnitude.
The RAA788000 operates from a single 2.7V to 3.6V supply. The device is available in a small 16 Ld TSSOP package and has an operation specified for the temperature range from -40°C to +105°C.
The RAA788000 is available in a 16 Ld thin shrink small outline package (TSSOP).
产品参数
| 属性 | 值 |
|---|---|
| Outputs (Max) (#) | 1 |
| Output Voltage (Min) (V) | 0.01 |
| Output Voltage (Max) (V) | 3.6 |
| Integrated MOSFET Driver (s) | No |
| Input Voltage (Min) (V) | 2.7 |
| Input Voltage (Max) (V) | 3.6 |
| Qualification Level | Standard |
封装选项
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TSSOP | 5.0 x 4.4 x 0.00 | 16 | 0.7 |
应用方框图
 | 光伏（PV）电弧检测系统 实时 PV 电弧检测系统能够快速、准确地识别故障，将火灾风险降至最低。 |
 | 智能三相电表 智能三相电表，具有双向通信和篡改检测功能，适用于现代电网。 |
其他应用
- Power-line current measurements
- Watt meters