米6体育平台手机版

SBOSAG1 July 2024 TMCS1133-Q1

PRODUCTION DATA

封装选项

机械数据 (封装 | 引脚)

DVG|10
- MPSS146B

散热焊盘机械数据 (封装 | 引脚)

订购信息

7.1.1 Sensitivity Error

Sensitivity is the proportional change in the sensor output voltage due to a change in the input conductor current. This sensitivity is the slope of the first-order transfer function of the sensor (see Figure 7-1). The sensitivity of the TMCS1133-Q1 is tested and calibrated at the factory for high accuracy.

TMCS1133-Q1 Sensitivity,
Offset, and Nonlinearity Error

Figure 7-1 Sensitivity, Offset, and Nonlinearity Error

Sensitivity error e_S is the deviation from ideal sensitivity and is defined in Equation 2 as the variation of the best-fit measured sensitivity from the ideal sensitivity.

Equation 2.

e_{S} = \frac{(S_{f i t} - S_{i d e a l})}{S_{i d e a l}}

where

e_S is the sensitivity error.
S_fit is the best fit sensitivity.
S_Ideal is the ideal sensitivity.

Sensitivity thermal drift S_drift,therm is the change in sensitivity with temperature and is reported in ppm/°C. To calculate sensitivity error at any given temperature T use Equation 3 to multiply the sensitivity thermal drift by the change in temperature from 25°C and add that value to the sensitivity error at 25°C.

Equation 3.

e_{S, ∆ T} = e_{S, 25 ℃} + (S_{d r i f t, t h e r m} \times ∆ T)

where

S_drift,therm is the sensitivity drift over temperature in ppm/°C.
ΔT is the change in device temperature from 25°C.

Sensitivity lifetime drift S_drift,life is the change in sensitivity due to operational and environmental stresses over the entire lifetime of the device, and is reported as a worst-case percentage change in sensitivity over lifetime at 25°C.