Datasheet LTM2884 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | Isolated USB Transceiver with Isolated Power |
| 页数 / 页 | 24 / 4 — SWITCHING CHARACTERISTICS. The. denotes the specifications which apply … |
| 修订版 | C |
| 文件格式/大小 | PDF / 1.3 Mb |
| 文件语言 | 英语 |
SWITCHING CHARACTERISTICS. The. denotes the specifications which apply over the full operating
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link to page 11 link to page 11 link to page 11 link to page 11 link to page 11 link to page 11 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 RLOAD = 50Ω, CLOAD = 100µF l 2 5 ms (ON VLO, VCC2 to 4.5V) RLOAD = 10Ω, CLOAD = 100µF, VCC = 12V l 3 10 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 ±15 kV D2+/D2– to GND2, VCC2, or VLO2 ON, SPNDPWR ±3 kV
ISOLATION CHARACTERISTICS TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Isolation Barrier: GND to GND2
VISO Rated Dielectric Insulation Voltage 1 Minute (Derived from 1 Second Test) (Notes 6, 7) LTM2884 2500 VRMS LTM2884(a) 3000 VRMS 1 Second (Note 5) LTM2884 3000 VRMS LTM2884(a) 3600 VRMS Common Mode Transient Immunity VBUS = VCC = 5V, ON = 3.3V, 1000V in 33ns ±30 kV/µs Transient Between GND and GND2 (Note 2) VIORM Maximum Working Insulation Voltage (Notes 2, 5) 560 VPEAK 400 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 Rev. C 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Switching Characteristics Isolation Characteristics Regulatory Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Functional Table Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
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 RLOAD = 50Ω, CLOAD = 100µF l 2 5 ms (ON VLO, VCC2 to 4.5V) RLOAD = 10Ω, CLOAD = 100µF, VCC = 12V l 3 10 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 ±15 kV D2+/D2– to GND2, VCC2, or VLO2 ON, SPNDPWR ±3 kV
ISOLATION CHARACTERISTICS TA = 25°C. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Isolation Barrier: GND to GND2
VISO Rated Dielectric Insulation Voltage 1 Minute (Derived from 1 Second Test) (Notes 6, 7) LTM2884 2500 VRMS LTM2884(a) 3000 VRMS 1 Second (Note 5) LTM2884 3000 VRMS LTM2884(a) 3600 VRMS Common Mode Transient Immunity VBUS = VCC = 5V, ON = 3.3V, 1000V in 33ns ±30 kV/µs Transient Between GND and GND2 (Note 2) VIORM Maximum Working Insulation Voltage (Notes 2, 5) 560 VPEAK 400 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 Rev. C 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Switching Characteristics Isolation Characteristics Regulatory Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuits Functional Table Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts