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LTC4309IDE-TRPBF Datasheet(PDF) 3 Page - Linear Technology |
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LTC4309IDE-TRPBF Datasheet(HTML) 3 Page - Linear Technology |
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3 / 16 page  LTC4309 3 4309fa The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V, VCC2 = 3.3V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VCC Positive Supply Voltage l 2.3 5.5 V VCC2 Input Side Accelerator Supply Voltage l 1.8 5.5 V ICC VCC Input Supply Current Enabled VCC = VCC2 = 5.5V, VSDAIN = VSCLIN = 0V (Note 2) l 711 mA ISD VCC Input Supply Current Disabled VCC = VCC2 = 5.5V, SDA = SCL = 5.5V, ENABLE = OV l 900 1400 μA ICC2 VCC2 Input Supply Current Enabled VCC = VCC2 = 5.5V, VSDAIN = VSCLIN = 0V (Note 2) l 190 250 μA ISD2 VCC2 Input Supply Current Disabled VCC = VCC2 = 5.5V, SDA = SCL = 5.5V, ENABLE = OV l 140 180 μA Propagation Delay and Rise Time Accelerators tPHL SDA/SCL Propagation Delay High to Low CLOAD = 50pF, 2.7k to VCC on SDA, SCL, (Note 3, 4), (Figure 1) 85 ns tPLH SDA/SCL Propagation Delay Low to High CLOAD = 50pF, 2.7k to VCC on SDA, SCL, (Note 3, 4), (Figure 1) 10 ns tRISE SDA/SCL Rise Time CLOAD = 100pF, 10k to VCC on SDA, SCL, VCC = 5V VCC2 = 5V, (Note 3, 5), (Figure 1) 30 300 ns tFALL SDA/SCL Fall Time CLOAD = 100pF, 10k to VCC on SDA, SCL, VCC = 5V (Note 3, 5), (Figure 1) 30 300 ns IPULLUPAC Transient Boosted Pull-up Current Positive Transition > 0.8V/μS on SDA, SCL, VCC = 3.3V (Note 7) 5 8 mA Start-Up Circuitry VPRE Precharge Voltage SDA, SCL Open l 0.8 1.0 1.2 V tIDLE Bus Idle Time l 55 95 175 μs VTHR_EN ENABLE Threshold Voltage ENABLE Rising Edge l 0.8 1.4 2 V VTHR_EN(HYST) ENABLE Threshold Voltage Hysteresis (Note 3) 100 mV VTHR_CTRL ACC, DISCEN Threshold Voltage 0.5 0.7 1 V ICTRL ENABLE, ACC, DISCEN Input Currents ENABLE, ACC, DISCEN from 0 to VCC l 0.1 ±5 μA tPLH_EN ENABLE Delay Off-On (Figure 1) 95 μs tPHL_EN ENABLE Delay On-Off (Note 3), (Figure 1) 10 ns tPLH_READY READY Delay On-Off (Note 3), (Figure 1) 10 ns tPHL_READY READY Delay Off-On (Note 3), (Figure 1) 10 ns VOL_READY READY Output Low Voltage IREADY = 3mA, VCC = 2.3V l 0.4 V IOFF_READY READY Off Leakage Current VCC = READY = 5.5V l 0.1 ±5 μA Timing Characteristics fI2C, MAX I2C Maximum Operating Frequency (Note 3) 400 600 kHz tBUF Bus Free Time Between Stop and Start Condition (Note 3) 1.3 μs tHD, STA Hold Time After (Repeated) Start Condition (Note 3) 100 ns tSU, STA Repeated Start Condition Set-Up Time (Note 3) 0 ns tSU, STO Stop Condition Set-Up Time (Note 3) 0 ns tHD, DATI Data Hold Time Input (Note 3) 0 ns tSU, DAT Data Set-Up Time (Note 3) 100 ns Input-Output Connection VOS Input-Output Offset Voltage 2.7k to VCC2 on SDA, SCL, Driven SDA, SCL = 0.2V l 20 60 100 mV VTHR SDA, SCL Logic Input Threshold Voltage VCC ≥ 2.9V VCC < 2.9V 1.4 1.1 1.65 1.35 1.9 1.6 V V ELECTRICAL CHARACTERISTICS |
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