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ADM1026JST-REEL7 Folha de dados(PDF) 7 Page - ON Semiconductor |
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ADM1026JST-REEL7 Folha de dados(HTML) 7 Page - ON Semiconductor |
7 / 55 page ADM1026 http://onsemi.com 7 ELECTRICAL CHARACTERISTICS TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted. (Note 1, 2, and 3) Parameter Unit Max Typ Min Test Conditions/Comments SERIAL BUS TIMING Start Hold Time, tHD; STA 4.0 ms SCL Low Time, tLOW 4.7 ms SCL High Time, tHIGH 4.0 ms SCL, SDA Rise Time, tr 1000 ns SCL, SDA Fall Time, tf 300 ns Data Setup Time, tSU; DAT 250 ns Data Hold Time, tHD; DAT 300 ns 1. All voltages are measured with respect to GND, unless otherwise specified. 2. Typicals are at TA = 25°C and represent the most likely parametric norm. Shutdown current typ is measured with VCC = 3.3V. 3. Timing specifications are tested at logic levels of VIL = 0.8 V for a falling edge and VIH = 2.1 V for a rising edge. 4. Total unadjusted error (TUE) includes offset, gain, and linearity errors of the ADC, multiplexer, and on−chip input attenuators. VBAT is accurate only for VBAT voltages greater than 1.5 V (see Figure 14). 5. Total analog monitoring cycle time is nominally 273 ms, made up of 18 ms × 11.38 ms measurements on analog input and internal temperature channels, and 2 ms × 34.13 ms measurements on external temperature channels. 6. The total fan count is based on two pulses per revolution of the fan tachometer output. The total fan monitoring time depends on the number of fans connected and the fan speed. See the Fan Speed Measurement section for more details. 7. ADD is a three−state input that may be pulled high, low, or left open circuit. 8. Logic inputs accept input high voltages up to 5.0 V even when device is operating at supply voltages below 5.0 V. 9. Endurance is qualified to 100,000 cycles as per JEDEC Std. 22 method A117, and measured at −40°C, +25°C, and +85°C. Typical endurance at +25°C is 700,000 cycles. 10.Retention lifetime equivalent at junction temperature (TJ ) = 55°C as per JEDEC Std. 22 method A117. Retention lifetime based on activation energy of 0.6 V derates with junction temperature as shown in Figure 15. Figure 2. Serial Bus Timing Diagram P S tSU; DAT tHIGH tF tHD; DAT tR tLOW tSU; STO PS SCL SDA tBUF tHD; STA tHD; STA tSU; STA |
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