Rainbow Electronics DS2127 - Manual (Page 3)

DS2127
Ultra3 LVD/SE SCSI 14-Line Terminator
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Note 1: All voltages are referenced to ground.
Note 2: Guaranteed by design and not production tested.
ELECTRICAL CHARACTERISTICS (continued)
(TPWR = V TPWR(MIN) to V TPWR(MAX) , T A = 0°C to +70°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V REF REGULATOR
1.25V Regulator Line Regulation
V REF unloaded; vary TPWR from
2.7V to 5.5V
1.0 2.5 %
2.85V Regulator 2.7 2.85 3.0 V
2.85V Regulator Short-Circuit
Source Current
V REF = 0V -375 -700 -1000 mA
2.85V Regulator Short-Circuit
Sink Current
V REF = 3.3V 170 300 700 mA
2.85V Regulator Line Regulation
V REF unloaded; vary TPWR from
2.7V to 5.5V
1.0 2.5 %
DIFFSENS OUTPUT
DIFFSENS Driver Output Voltage V DSO -5mA ≤ I
DIFFSENS
≤ 50µA 1.2 1.4 V
DIFFSENS Driver Source Current I DSH V DIFFSENS = 0V -15 -5 mA
DIFFSENS Driver Sink Current I DSL V DIFFSENS = 2.75V 100 200 µA
I LEAK,
LOW
With ISO high, |V DIFFSENS | = 0.3V -3 +1
DIFFSENS Leakage
I LEAK,
HIGH
With ISO high, |V DIFFSENS - V TPWR | = 0.3V 1 3
µA
THERMAL SHUTDOWN
Thermal-Shutdown Threshold For increasing temperature 130 °C
Thermal-Shutdown Hysteresis 10 °C
MODE CHANGE DELAY/FILTER
Mode Change Delay t DELAY 0.66 1.25 2.00 ms
LOGICAL SIGNALS (ISO)
Input Low Voltage V IL -0.3 +0.8 V
Input High Voltage V IH 2.0 TPWR + 0.3 V
Input Current I IL V CC = 3.3V -30 -10 µA
STATUS BITS (LVD, SE)
Source Current I
OH
V
CC
= 3.3V, V
LOAD
= 2.4V -4 -6 mA
Sink Current I OL V CC = 3.3V, V LOAD = 0.4V 2 5 mA
DIFF_CAP
Input Current IL V IL = -0.3V -1 +1 µA
DIFF_CAP SE Operating Range V SEOR -0.3 +0.5 V
DIFF_CAP LVD Operating Range V LVDOR 0.7 1.9 V
DIFF_CAP HVD Operating Range V HVDOR 2.4 V TPWR + 0.3 V