6

Product Speciications

Speciications 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 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 different voltages)

Current

100 mA continuous +

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