Datasheet

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34945EXT switch drive (64 channels, low side drive mode)
General specifications
Driver off voltage (max)
30 V
Driver off leakage current
500 μA
Driver on current (max)
600 mA
Driver on voltage (max)
0.5 V @ 600 mA
34945EXT switch drive (64 channels, TTL drive mode)
Hi output voltage
3 V @ Iout = 2 mA
Lo output voltage
0.4 V @ Iin = 20 mA
Lo input Current
20 mA
34945EXT position indicator sense inputs
Channels
64
Lo input voltage (max)
0.8 V
Hi input voltage (min)
2.5 V
Input resistance
>100 kΩ @ Vin ≤ 5 V
>20 kΩ @ Vin > 5 V
Maximum input voltage
30 V
34945EXT switch drive power supply (34945EXT powered by 34945A)
Voltage
24 V nominal (external power supply required for switches needing more than
24 V)
Current
100 mA continuous + 200 mA (15 msec pulse, 25% duty cycle)
34945EXT external power connection
Voltage range
4.75 V to 30 V
Current limit
2 A
LED indicator (Current mode divers)
Channels
64
Supply voltage
5 V nominal
LED drive current
5 mA nominal, (prog 1-20 mA)
Driver compliance voltage
0.8 V
34945EXT dimensions
11.2" x 4.5" x 1.5" high with distribution boards installed
Maximum of eight 34945EXT’s per mainframe
Switch drive control also available in L4445A and L4490A/91A RF Switch Platform.
NOTE: See Configuration Guide, “34945A, L4445A, L4490A/L4491A” literature number 5989-2272EN, for
configuration details.