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LTM4650 データシート(PDF) 13 Page - Analog Devices |
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LTM4650 データシート(HTML) 13 Page - Analog Devices |
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13 / 138 page  LTM4664A 13 Rev. 0 For more information www.analog.com ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified internal operating temperature range (Note 1, 2, 3). Specified as each individual output channel designated with n (Note 3). TA = 25°C, VINS3 = 12V, RUN_Cn = 3.3V, EXTVCC = 0V, FREQUENCY_SWITCH = 350kHz and VOUTCn commanded to 1.000V unless otherwise noted. Configured with factory default EEPROM settings, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Digital Inputs SHARE_CLK, WP (Note 10) VIH Input High Threshold Voltage ISINK = 3mA l 1.5 1.8 V VIL Input Low Threshold Voltage l 0.6 1 V Digital Filtering of FAULTCn (Note 10) TFLTF Input Digital Filtering FAULTn 3 µs Digital Filtering of PGOOD_Cn (Note 10) TPGF Output Digital Filtering PGOOD_Cn 60 µs Digital Filtering of RUN_Cn (Note 10) TRUNF Input Digital Filtering RUN_Cn 10 µs PMBus Interface Timing Characteristics (Note 10) fSCL Serial Bus Operating Frequency l 10 400 kHz tBUF Bus Free Time Between Stop and Start l 1.3 µs tHD(STA) Hold Time After Repeated Start Condition After This Period, the First Clock is Generated l 0.6 µs tSU(STA) Repeated Start Condition Setup Time l 0.6 10000 µs tSU(ST0) Stop Condition Setup Time l 0.6 µs tHD(DAT) Date Hold Time Receiving Data Transmitting Data l l 0 0.3 0.9 µs µs tSU(DAT) Data Setup Time Receiving Data 0.1 µs tTIMEOUT_SMB Stuck PMBus Timer Non-Block Reads Stuck PMBus Timer Block Reads Measured from the Last PMBus Start Event 3 255 ms ms tLOW Serial Clock Low Period l 1.3 10000 µs tHIGH Serial Clock High Period l 0.6 µs Channel 0 and Channel 1 Power Stages (Note 10) PWM_Cn LOW PWM Drive Low Level, C0, C1 0.6 V PWM_Cn HIGH PWM Drive High Level, C0, C1 2.6 V PHFLT_Cn T Warning Temperature 140 C PHFLT_Cn ACC Thermal Warning Accuracy –10 10 Kelvin PHFLT_Cn HYS Hysteresis 10 Kelvin PHFLT_Cn Res On Resistance Sink = 8mA 37.5 80 Ω PHFLT_Cn Leak 0.1 5 µA PHFLT_Cn Pull-Up Pull-Up Resistor Tied to VDD33 10 kΩ |
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