LTM2884

4

Rev. D

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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)

LTM2884

LTM2884(a)

2500

3000

VRMS

VRMS

1 Second (Note 5)

LTM2884

LTM2884(a)

3000

3600

VRMS

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