FUSB380 datasheet(4/8 Pages) ONSEMI

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FUSB380

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DC AND TRANSIENT ELECTRICAL CHARACTERISTICS (Minimum and maximum values are at VCONNx = 2.4 V to 5.5 V,

TA = −40°C to +85°C unless otherwise noted. Typical values are at TA = 25°C, VCONNx = 3.3 V)

Symbol

Units

Max

Typ

Min

Conditions

Parameter

TRANSMITTER

vSwing

BMC voltage swing

1.05

1.125

1.2

zDriver

TX output impedance at 750 kHz with an

external 220 pF or equivalent load

RECEIVER

cReceiver

Receiver capacitance when driver isn’t

turned on (Note 4)

Vrms=0.371; Vdc=0.5V; Freq.=1MHz

zBmcRx

Receiver Input Impedance (cannot be tested

but can be simulated and guaranteed by de-

sign)

nTransitionCount

Transitions count in a time window of 20 ms

max.

edges

tRxFilter

Rx bandwidth limiting filter (Note 4)

100

tTransitionWindow

Time window for detecting non−idle

TYPE−C PHY

Powered Cable Termination before VCONN

Power

800

1200

RA_WEAK

Weakened RA when VCONN is applied

VCONN > VVCONN_RA_WEAK after

tVCONNStable (min)

zOPEN

CC resistance when VCONNx is valid and

when VCONNx = 0 V

126

USB PD SPECIFIC TIMING PARAMETERS

tBISTContMode

BIST Carrier Mode 2 pattern sent only for

this length of time

tTransmit

From receiving a packet, we have to send a

GoodCRC in response within tTransmit time.

It is measured from the last bit of the EOP of

the received packet to the first bit sent of the

preamble of the GoodCRC packet

195

CABLE MARKER SPECIFIC

tVCONNStable

The time between the application of VCONN

until SOP’ and SOP” shall be ready for com-

munication.

VCONN ≥ 2.4 V

VVCONN_RA_WEAK Voltage threshold when RA_WEAK is pre-

sented after tVCONNStable

2.4

tVCONNDischarge

The time from the point that the cable is de-

tached until vVCONNDischarge shall be met.

Cable loading = 10 mF, RA_WEAK

230

vVCONNDischarge

The VCONN voltage following cable detach

and self−discharge.

800

vVCONNDisconnect Threshold used to detect VCONN discon-

nect.

0.8

2.4

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.

4. Guaranteed by Design. Characterized on the ATE or Bench.

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