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LTC3889 Datasheet(PDF) 9 Page - Analog Devices |
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LTC3889 Datasheet(HTML) 9 Page - Analog Devices |
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9 / 118 page  LTC3888/LTC3888-1/ LTC3888-2 9 Rev. B For more information www.analog.com SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS NVOUT VOUT Resolution LSB Step Size 16 130 Bits µV VOUT_TUE VOUT Total Unadjusted Readback Error Constant Load l –0.5 ±0.2 0.5 % % VOUT_OS VOUT Readback Offset Voltage ±300 µV NISENSE IOUT Readback Resolution (Note 12) 10 Bits ISENSE_TUE IOUT Total Unadjusted Readback Error ISENSEn – IREF ≥ 40mV l –1 1 % ISENSE_OS IOUT Readback Offset Voltage ±125 µV NTEMP Temperature Resolution (Note 12) 10 Bits TTUE Temperature Total Unadjusted Readback Error 0.24V ≤ TSNSn ≤ 1.8V (Note 13) l –1.5 1.5 °C tCONVERT Update Rate (Note 14) MFR_PWM_CONFIG_LTC3888-1[6] = 0 MFR_PWM_CONFIG_LTC3888-1[6] = 1 90 45 ms ms Internal EEPROM (Note 15) Endurance Number of Write Operations 0°C ≤ TJ ≤ 85°C During All Write Operations l 10,000 Cycles Retention Stored Data Retention TJ ≤ 125°C l 10 Years Mass Write Time STORE_USER_ALL Execution Duration 0°C ≤ TJ ≤ 85°C During All Write Operations l 0.2 2 s Digital Inputs (SCL, SDA, RUNn, FAULTn, SYNC, SHARE_CLOCK) VIH Input High Voltage SCL, SDA, RUNn, FAULTn LTC3338 SCL, SDA, RUNn, FAULTn LTC3338-1 SYNC, SHARE_CLK l l l 1.25 2 1.8 V V V VIL Input Low Voltage SCL, SDA, RUNn, FAULTn LTC3338 SCL, SDA, RUNn, FAULTn LTC3338-1 SYNC, SHARE_CLK l l l 0.8 1.4 0.6 V V V VHYST Input Hysteresis SCL, SDA (Note 10) 65 mV IIN Input Leakage Current 0V ≤ SCL, SDA, RUN0, RUN1 ≤ 5.5V l –5 5 µA CIN Input Capacitance (Note 16) 10 pF tFILT Input Digital Filter Delay FAULTn RUNn 3 10 µs µs Digital Outputs (SCL, SDA, RUNn, FAULTn, SYNC, SHARE_CLOCK, ALERT, PWMn, PGOODn, CLKOUT) VOL Output Low Voltage ISINK = 3mA: SDA, SCL, FAULTn, ALERT, SYNC, RUNn, SHARE_CLK ISINK = 2mA: PWMn, PGOODn, CLKOUT l l 400 300 mV mV VOH Output High Voltage PWMn, ISOURCE = 2mA l 2.7 V ILKG Output Leakage Current 0V ≤ PWMn, PGOODn ≤ VDD33, 0V ≤ CLKOUT ≤ VDD33 0V ≤ FAULTn, SYNC ≤ 3.6V, 0V ≤ SHARE_CLOCK ≤ 3.6V 0V ≤ RUNn, SCL, SDA, ALERT ≤ 5.5V l l l l l –2 –2 –2 –5 –5 2 2 2 5 5 µA µA µA µA µA ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C (Notes 2, 8). VIN = 12V, VSENSEn+ = 1V, VSENSEn– = GND = 0V, fSYNC = 500kHz (externally driven) unless otherwise specified. |
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