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L9963E 数据表(PDF) 10 Page - STMicroelectronics |
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L9963E 数据表(HTML) 10 Page - STMicroelectronics |
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10 / 184 page  3.1.1 Supply voltage ranges The device operates up to 14 cells of battery for hybrid and electric vehicles. The device can cover the voltage range of the main automotive Lithium batteries, up to a maximum of 4.6 V per cell in operating conditions. The IC has been engineered to sustain transient OV events as per LV 148 All operative ranges are listed in the picture below. If the stand by V3V3 regulator goes in POR, the device is put in reset. Figure 4. Device operation in the VBAT supply voltage ranges AMR Violation •Permanent damage •Permanent parameter deviation Critical UV • Params may deviate • Balance disabled • Transceiver usage Dyn UV •No param deviation •All functions guarante ed Normal Op •All functions guarantee d Dyn OV •Cell total error slightly increased •All functions guarantee d Critical OV •Params may deviate •All functions available AMR Violation •Permanent damage •Permanent parameter deviation VBAT 3.2 Absolute maximum ratings Exceeding any Absolute Maximum Rating (AMR) may cause permanent damage to the integrated circuit. All voltages are related to the potential at substrate ground AGND. Table 3. Absolute Maximum Rating Symbol Parameter Test conditions Min. Typ. Max. Unit VBAT, C14 - -0.3 - 72 V C0 - -0.3 - 0.3 V C(n); B(n,n-1); Sn - -0.3 - 72 V C(n)-C(n-1) for n=1 to 14 - In this range, the device is not damaged, but leakage from pins may exceed ICELL_LEAK (see Table 39) if ADCs are enabled; it doesn’t exceed if ADCs are disabled -72 - 72 V C(n)-C(n-1) for n=1 to 14 - In this range, the leakage from pins ICELL_LEAK is guaranteed (see Section 6.10.5 Busbar connection) if ADCs are enabled or disabled -6 - 6 V S(n+1)-B(n+1,n) B(n+1,n)-S(n) for n=1 to 13 odd - -0.3 - VBAL_CLAMP V C(n)-S(n) for n=1 to 14 - Vreg < 2 V -72 - 72 V VBAT-C14 - -72 - 72 V ISOHP/M, ISOLP/M - -0.3 - 6 V GPIOn - -0.3 - 5.5 V SPIEN - -0.3 - 12 V VTREF - -0.3 - 6 V L9963E Absolute maximum ratings DS13636 - Rev 12 page 10/184 |
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