UCC5672
ELECTRICAL CHARACTERISTICS Unless otherwise stated, these specifications apply for TA = TJ = 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
14
35
25
mA
mA
µA
SE Mode
DISCNCT Mode
250
500
Regulator Section
1.25V Regulator Output Voltage
1.25V Regulator Source Current
1.25V Regulator Sink Current
2.7V Regulator Output Voltage
2.7V Regulator Source Current
2.7V Regulator Sink Current
Diff Sense Driver (DIFSENS) Section
1.3V DIFSENS Output Voltage
1.3V DIFSENS Source Current
1.3V DIFSENS Sink Current
Differential Termination Section
Differential Impedance
LVD SCSI Mode
1.15
1.25
1.35
V
V
REG= 0V
–225 –420 –800
mA
mA
V
VREG= 3.3V
SE Mode
100
2.5
180
2.7
420
3.0
VREG= 0V
VREG= 3.3V
–225 –420 –800
mA
mA
100
180
1.3
420
DIFSENS
1.2
–5
50
1.4
–15
200
V
VDIFSENS = 0V
VDIFSENS = 2.75V
mA
µA
100
110
100
1.15
105
150
110
165
125
1.35
3
Ω
Ω
mV
V
Common Mode Impedance
Differential Bias Voltage
(Note 2)
Common Mode Bias
1.25
Output Capacitance
Single Ended Measurement to Ground (Note 1)
pF
Single Ended Termination Section
Impedance
100
108
–23
116
Ω
(VLX −0.2V )
Z =
, (Note 3)
ILX
Termination Current
Signal Level 0.2V, All Lines Low
Signal Level 0.5V
–20
–17
–25.4
–22.4
400
3
mA
mA
nA
pF
Ω
Output Leakage
Output Capacitance
Single Ended Measurement to Ground (Note 1)
I= 10mA
Single Ended GND SE Impedance
20
60
Disconnect (DISCNCT) and Diff Buffer (DIFFB) Input Section
DISCNCT Threshold
0.8
2.0
–30
0.7
2.4
1
V
µA
V
DISCNCT Input Current
–10
DIFFB SE to LVD SCSI Threshold
DIFFB LVD SCSI to HPD Threshold
DIFFB Input Current
0.5
1.9
–1
V
µA
3
TI [ TEXAS INSTRUMENTS ]
