特長
- 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
説明
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).
パラメータ
| 属性 | 値 |
|---|---|
| VS (Min) (V) | 2.7 |
| VS (Max) (V) | 3.6 |
| PSRR (db) | 86 |
| CMRR (dB) | 101 |
| Common Mode Input Range (V) | 3.6 |
| Offset Voltage (Max) (mV) | 3.1 |
| Qualification Level | Standard |
パッケージオプション
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TSSOP | 5.0 x 4.4 x 0.00 | 16 | 0.7 |
アプリケーション・ブロック図
 | Mode3タイプ AC EV充電器ウォールボックス 住宅用および公共充電用途向けのスケーラブルなMode3タイプ AC EV充電プラットフォーム |
 | 太陽光発電(PV)アーク検出システム リアルタイムのPVアーク検出システムは、迅速かつ正確な障害の特定により、火災のリスクを最小限に抑えます。 |
その他アプリケーション
- Power-line current measurements
- Watt meters