5
Specifications and Characteristics
34945EXT switch drive
64 channels, low side drive mode
Driver off voltage (max)
30 V
Driver off leakage current
500 uA
Driver on current (max)
600 mA
Driver on voltage (max)
0.5 V @ 600 mA
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 k
Ω
@ Vin
≤
5 V
>20 k
Ω
@ 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 different voltages)
Current
100 mA cont
200 mA (15 ms 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
Maximum 8 34945Ext’s per L4445A
Product Specifications
