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LTM4677 Datasheet(PDF) 7 Page - Analog Devices |
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LTM4677 Datasheet(HTML) 7 Page - Analog Devices |
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7 / 116 page  LTC3883/LTC3883-1 7 Rev. F For more information www.analog.com ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TJ = 25°C (Note 2). VIN = 12V, VRUN = 3.3V, fSYNC = 500kHz (externally driven) unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Zero-Code Offset Voltage ±28 µV tCONVERT Conversion Time (Note 6) 80 ms Input Current Readback N Resolution LSB Step Size (Note 5) 8x Gain, 0V ≤ |VIN_SNS – IIN_SNS| ≤ 8mV 4x Gain, 0V ≤ |VIN_SNS – IIN_SNS| ≤ 20mV 2x Gain, 0V ≤ |VIN_SNS – IIN_SNS| ≤ 50mV 10 15.26 30.52 61 Bits µV µV µV IIN_TUE Total Unadjusted Error 8x Gain, VISENSE > 2.5mV (Note 8) 4x Gain, VISENSE > 4mV (Note 8) 2x Gain, VISENSE > 6mV (Note 8) l l l ±2.0 ±1.5 ±1.2 % % % VOS Zero-Code Offset Voltage ±50 µV tCONVERT Conversion Time (Note 6) 160 ms Supply Current Readback N Resolution LSB Step Size (Note 5) 10 122 Bits µV ICHIP_TUE Total Unadjusted Error (LTC3883 Only) Total Unadjusted Error (LTC3883-1 Only) l l ±5 ±200 % µA tCONVERT Conversion Time (Note 6) 160 ms Duty Cycle Readback D_RES Resolution (Note 5) 10 Bits D_TUE Total Unadjusted Error 16.3% Duty Cycle –3 3 % tCONVERT Conversion Time (Note 6) 80 ms Temperature Readback (T0, T1) TRES_T Resolution 0.25 °C T0_TUE External TSNS TUE ∆VTSNS = 72mV (Note 8) l ±3 °C TI_TUE Internal TSNS TUE VRUN = 0.0V, fSYNC = 0kHz (Note 8) ±1 °C tCONVERT_T Update Rate (Note 6) 80 ms INTVCC Regulator VINTVCC Internal VCC Voltage No Load (LTC3883 Only) 6V < VIN < 24V 4.8 5 5.2 V VLDO_INT INTVCC Load Regulation (LTC3883 Only) ICC = 0mA to 50mA 0.5 ±2 % VDD33 Regulator VDD33 Internal VDD33 Voltage 4.5V < VINTVCC/VEXTVCC 3.2 3.3 3.4 V ILIM VDD33 Current Limit VDD33 = GND, VIN = INTVCC = 4.5V 100 mA VDD33_OV VDD33 Overvoltage Threshold 3.5 V VDD33_UV VDD33 Undervoltage Threshold 3.1 V VDD25 Regulator VDD25 Internal VDD25 Voltage 2.25 2.5 2.75 V ILIM VDD25 Current Limit VDD25 = GND, VIN = INTVCC = 4.5V 80 mA Oscillator and Phase-Locked Loop fOSC Oscillator Frequency Accuracy 250kHz < fSYNC < 1MHz Measured Falling Edge-to-Falling Edge of SYNC with SWITCH_FREQUENCY = 250.0.and 1000.0 l ±7.5 % VTH,SYNC SYNC Input Threshold VCLKIN Falling VCLKIN Rising 1 1.5 V V VOL,SYNC SYNC Low Output Voltage ILOAD = 3mA l 0.2 0.4 V ILEAKSYNC SYNC Leakage Current in Slave Mode 0V ≤ VPIN ≤ 3.6V ±5 µA |
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