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ISL21400IU8Z Datasheet(PDF) 7 Page - Intersil Corporation |
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ISL21400IU8Z Datasheet(HTML) 7 Page - Intersil Corporation |
7 / 17 page 7 FN8091.0 December 14, 2006 3. This parameter is not 100% tested. 4. Cb = total capacitance of one bus line in pF. 5. tWC is the time from a valid stop condition at the end of a write sequence to the end of the self-timed internal nonvolatile write cycle. It is the minimum cycle time to be allowed for any nonvolatile write by the user. 6. Over the specified temperature range. Temperature slope (TS) is measured by the box method whereby the change in VOUT is divided by the temperature range; in this case, -40°C to +85°C = +125°C. TS1, TS2, TS3 =. 7. Given by PSRR (dB) = 20 * log10 (ΔVout/ΔVCC) at DC. 8. Test +25°C and +85°C only. 9. Total error of Equation 1 @ AV =1, K = -2.1mV/°C, VREF = 1.20V, m = 255, n = 255 to 0, VCC = 3.0V 10. Over the specified temperature range. Temperature slope (TS) is measured by the box method whereby the change in VOUT is divided by the temperature range. Incremental TS is the temperature slope at m = 255 minus the temperature slope at m = 0 divided by 255 with AV = 1, n = 255 11. Temperature Slope Non- linearity is measured over the specified temperature range. The actual change in output voltage is subtracted from the expected change in output voltage, and then divided by the expected change to normalize before converting to percent. 12. For codes n = 8 to 255 13. Guaranteed monotonic 14. tWC is the time from a valid STOP condition at the end of a Write sequence of I 2C serial interface, to the end of the self-timed internal nonvolatile write cycle. 15. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details. TS V OUT Tm in () V OUT Tm ax () – Tmin Tmax – -------------------------------------------------------------------------------- = V OUT TE () V OUT mea sured () V OUT Equation1 () – V OUT Eq ua tion1 () ------------------------------------------------------------------------------------------------------------- x100% = TS4 V OUT Tmin () V OUT Tm ax () – Tmin Tmax – () -------------------------------------------------------------------------------- m 255 = ⎝⎠ ⎜⎟ ⎛⎞ V OUT Tm in () V OUT Tm ax () – Tmin Tmax – () -------------------------------------------------------------------------------- m0 = ⎝⎠ ⎜⎟ ⎛⎞ – 255 ÷ = TSNL T ( Sy ΔT ) () ΔVOUT – TSy ΔT × ---------------------------------------------------------- x100%; y 123 ,, == Typical Performance Curves FIGURE 1. VOUT vs TEMPERATURE (AV = 1, 2) FIGURE 2. VOUT vs TEMPERATURE (AV = 4) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 -40 -15 10 35 60 85 TEMPERATURE (°C) TS = 0 TS = 255 TS = 127 TS = 0 TS = 255 TS = 127 AV = 2 AV = 1 3.0 3.5 4.0 4.5 5.0 5.5 6.0 -40 -15 10 35 60 85 TEMPERATURE (°C) AV = 4 TS = 0 TS = 255 TS = 127 ISL21400 |
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