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CQ-320A 数据表(PDF) 8 Page - Asahi Kasei Microsystems |
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CQ-320A 数据表(HTML) 8 Page - Asahi Kasei Microsystems |
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8 / 19 page  [CQ-320A] 016008770-E-00 2016/07 - 8 - 10. Characteristics Definitions 10.1. Sensitivity Vh [mV/A], Zero-current output Voltage Vof [V] Sensitivity is defined as the slope of the approximate straight line calculated by the least square method, using the data of VOUT pin voltage (VOUT) when the primary current (IIN) is swept within ±10A. Zero-current output voltage is defined as the intercept of the approximate straight line above. 10.2. Linearity Error ρ [%F.S.] Linearity error is defined as the ratio of the maximum error voltage (Vd) to the full scale (F.S.), where Vd is the maximum difference between the VOUT pin voltage (VOUT) and the approximate straight line calculated in the sensitivity and zero-current output voltage definition. The primary current (IIN) is swept within ±10A. Definition formula is shown in below: ρ = V d / F.S. × 100 Full scale (F.S.) is defined as F.S. = VsatH(min) - VsatL(max) [V]. Figure 4. Output characteristics of CQ-320A. 10.3. Ratiometric Error of Sensitivity Vh-R [%] and Ratiometric Error of Zero-Current Output Voltage Vof-R [%F.S.] Output of CQ-320A is ratiometric, which means the values of sensitivity (Vh) and zero-current output voltage (Vof) are proportional to the supply voltage (VDD). Ratiometric error is defined as the difference between the Vh (or Vof) and ideal Vh (or Vof) when the VDD is changed from 3.3V to VDD1 (2.97V ≤ VDD1 ≤ 3.63V). Definition formula is shown in below: Vh-R = 100 × {(Vh(VDD = VDD1) / Vh(VDD = 3.3V)) – (VDD1 / 3.3)} / (VDD1 / 3.3) Vof-R = 100 × (Vof(VDD = VDD1) – Vof(VDD = 3.3V) × VDD1 / 3.3) / F.S. Full scale (F.S.) is defined as F.S. = VsatH(min) - VsatL(max) [V]. Approximate straight line by least square method 10 IIN(A) VOUT(V) −10 0 Vd Actual output voltage (Peak time: 35ms) |
类似零件编号 - CQ-320A_16 |
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类似说明 - CQ-320A_16 |
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