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LTM2884 Datasheet(PDF) 4 Page - Linear Technology |
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LTM2884 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 24 page  LTM2884 4 2884f For more information www.linear.com/LTM2884 swiTching characTerisTics The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, VBUS = 5V, GND = GND2 = 0V, ON = VLO, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Low Speed USB tLDR Low Speed Data Rate CL = 50pF to 450pF (Note 4) 1.5 Mbps tLR Rise Time Figure 2, CL = 50pF to 600pF l 75 300 ns tLF Fall Time Figure 2, CL = 50pF to 600pF l 75 300 ns tLPRR, tLPFF Propagation Delay Figure 2, CL = 50pF to 600pF l 200 300 ns tLDJ1 Differential Jitter To Next Transition (Note 2) ±45 ns tLDJ2 Differential Jitter To Paired Transitions (Note 2) ± 15 ns Full Speed USB tFDR Full Speed Data Rate CL = 50pF (Note 4) 12 Mbps tFR Rise Time Figure 3, CL = 50pF l 4 20 ns tFF Fall Time Figure 3, CL = 50pF l 4 20 ns tFPRR, tFPFF Propagation Delay Figure 3, CL = 50pF l 60 80 115 ns tFDJ1 Differential Jitter To Next Transition (Note 2) 2 ns tFDJ2 Differential Jitter To Paired Transitions (Note 2) 1 ns Power Supply Generator VCC2 – GND2 Supply Start-Up Time (ON VLO, VCC2 to 4.5V) RLOAD = 50Ω, CLOAD = 100µF RLOAD = 10Ω, CLOAD = 100µF, VCC = 12V l l 2 3 5 10 ms ms tWUSPND Wake Up from Suspend Mode Resume Signal, SPNDPWR = 0 l 0.25 10 µs ESD (HBM) (Note 2) Isolation Barrier GND to GND2 ±15 kV D1+, D1–, D2+, D2– D1+/D1– to GND, VCC, VBUS, or VLO and D2+/D2– to GND2, VCC2, or VLO2 ±15 kV ON, SPNDPWR ±3 kV isolaTion characTerisTics T A = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Isolation Barrier: GND to GND2 VISO Rated Dielectric Insulation Voltage (Notes 6, 7) 1 Minute (Derived from 1 Second Test) 2500 VRMS 1 Second (Note 5) 3000 VRMS Common Mode Transient Immunity VBUS = VCC = 5V, ON = 3.3V, 1000V in 33ns Transient Between GND and GND2 (Note 2) ±30 kV/µs VIORM Maximum Working Insulation Voltage (Notes 2, 5) 560 400 VPEAK VRMS Partial Discharge VPR = 750VRMS (Note 5) <5 pC CTI Comparative Tracking Index IEC 60112 (Note 2) 600 VRMS Depth of Erosion IEC 60112 (Note 2) 0.017 mm DTI Distance Through Insulation (Note 2) 0.1 mm Input to Output Resistance (Notes 2, 5) 1012 Ω Input to Output Capacitance (Notes 2, 5) 13 pF Creepage Distance (Notes 2, 5) 9.48 mm |
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