Datasheet

3
UCC5672
ELECTRICAL CHARACTERISTICS
Unless otherwise stated, these specifications apply for T
A
=T
J
= 0°C to 70°C,
TRMPWR = 2.7V to 5.25V.
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
TRMPWR Supply Current Section
TRMPWR Supply Current LVD SCSI Mode 23 35 mA
SE Mode 14 25 mA
DISCNCT Mode 250 500 µA
Regulator Section
1.25V Regulator Output Voltage LVD SCSI Mode 1.15 1.25 1.35 V
1.25V Regulator Source Current V
REG
= 0V –225 –420 –800 mA
1.25V Regulator Sink Current V
REG
= 3.3V 100 180 420 mA
2.7V Regulator Output Voltage SE Mode 2.5 2.7 3.0 V
2.7V Regulator Source Current V
REG
= 0V –225 –420 –800 mA
2.7V Regulator Sink Current V
REG
= 3.3V 100 180 420 mA
Diff Sense Driver (DIFSENS) Section
1.3V DIFSENS Output Voltage DIFSENS 1.2 1.3 1.4 V
1.3V DIFSENS Source Current V
DIFSENS
= 0V –5 –15 mA
1.3V DIFSENS Sink Current V
DIFSENS
= 2.75V 50 200 µA
Differential Termination Section
Differential Impedance 100 105 110 Ω
Common Mode Impedance (Note 2) 110 150 165 Ω
Differential Bias Voltage 100 125 mV
Common Mode Bias 1.15 1.25 1.35 V
Output Capacitance Single Ended Measurement to Ground (Note 1) 3 pF
Single Ended Termination Section
Impedance
Z
VL V
IL
X
X
=
−(.)02
, (Note 3)
100 108 116 Ω
Termination Current Signal Level 0.2V, All Lines Low –20 –23 –25.4 mA
Signal Level 0.5V –17 –22.4 mA
Output Leakage 400 nA
Output Capacitance Single Ended Measurement to Ground (Note 1) 3 pF
Single Ended GND SE Impedance I= 10mA 20 60 Ω
Disconnect (DISCNCT) and Diff Buffer (DIFFB) Input Section
DISCNCT Threshold 0.8 2.0 V
DISCNCT Input Current –10 –30 µA
DIFFB SE to LVD SCSI Threshold 0.5 0.7 V
DIFFB LVD SCSI to HPD Threshold 1.9 2.4 V
DIFFB Input Current –1 1 µA