LB1731

The LB1731 is a 4-channel high-voltage current sink output driver. Inputs are active-low CMOSITTL logic-level, and outputs are high-voltage open-collector NPN Darlington pairs. Each driver in the LB1731 sinks up to 1.5A and withstands collector voltages of up to 85V. The LB1731 is available in a 16-pin DIP package.

The features of LB1731 can be summarized as (1)four independent high-voltage highscurrent drivers ; (2)output clamp diodes ; (3)input protection diodes ; (4)5V CMOS~ and TTL-compatible logic-level inputs.

The absolute maximum ratings of LB1731 are (1)maximum supply voltage VDD max 7.0, VCC max 82V ; (2)applied output voltage VO max: 85V ; (3)applied input voltage VIN max: VDD-7.0 to VDD + 10.0V; (4)output current IO max: 1.5 A ; (5)clamp diode forward current IFS: 1.5 A ; (6)allowable power dissipation Pd max: Package only 1.9 W, with recommended circuit board pattern 2. 6W ; (7)operating temperature Topr: 20 to 75°C; (8)storage temperature Tstg: 55 to + 150°C; (9)power supply voltage range VDD: 3.5 to 7.0 V ; (10)input ON-level voltage VIN on: VDD -0.7 to VDD-2.6V; (11)input OFF-level voltage VIN off: VDD-0.3 to VDD+ 10.0V.