UCC5618DWP Datasheet, PDF (3/9 Pages) Texas Instruments – 18-Line SCSI Terminator

UCC5618
ELECTRICAL CHARACTERISTICS: Unless otherwise stated these specifications apply for T_A = 0°C to 70°C,
TRMPWR = 4.75V, DISCNCT = 0V, T_A = T_J.
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
Supply Current Section
TERMPWR Supply Current
All Termination Lines = Open
1
2 mA
All Termination Lines = 0.2V
420 440 mA
Power Down Mode
DISCNCT = TRMPWR
50 100 µA
Output Section (Termination Lines)
Termination Impedance
See Figure 1
104.5 110 115.5 Ω
Output High Voltage
V_TRMPWR = 4V (Note 1)
2.6 2.8
3
V
Max Output Current
V_LINE = 0.2V, T_J = 25°C
–22.1 –23.3 –24 mA
V_LINE = 0.2V
–20.7 –23.3 –24 mA
V_LINE = 0.2V, TERMPWR = 4V, T_J = 25°C
(Note 1)
–21 –23.3 –24 mA
V_LINE = 0.2V, TRMPWR = 4V (Note 1)
–20 –23 –24 mA
V_LINE = 0.5V
–22.4 mA
Output Leakage
DISCNCT = 2.4V, TRMPWR = 0V to 5.25V,
REG = 0.2V, V_LINE = 5.25V
10 400 nA
Output Capacitance
DISCNCT = 2.4V (Note 2)
2
3.5 pF
Regulator Section
Regulator Output Voltage
2.6 2.8
3
V
Drop Out Voltage
All Termination Lines = 0.2V
0.4 0.8
V
Short Circuit Current
V_REG = 0V
–475 –650 –950 mA
Sinking Current Capability
V_REG = 3.5V
200 400 800 mA
Thermal Shutdown
170
°C
Thermal Shutdown Hysteresis
10
°C
Disconnect Section
Disconnect Threshold
0.8 1.5
2
V
Input Current
DISCNCT = 0V
–10 –30 µA
Note 1: Measuring each termination line while other 17 are low (0.2V).
Note 2: Guaranteed by design. Not 100% tested in production.
Procedure:
1) Measure V_REG N.L.
2) Set V_L = 0.2V
3) Measure I_MAX at 0.2V
4) Impedance = ^{VREG N.L.– 0.2V}
I _MAX
Figure 1. Termline Impedance Measurement Circuit
3
UDG-96102-1