Datasheet

Product Data Sheet RER175-42/18/2TDMLP
01/31/2019 page 5 of 12
3 Operating Data
3.1 Electrical Interface - Input
Control input PWM
Features
Inpute type Open collector
PWM - Frequency
typical: 2 kHz
Characteristics
Schematics
Speed control:
By Puls width modulation (PWM) 0 ... 100%
Open collector in relation to signal-ground
f = 2kHz +-20%
Information to the curve:
0 % - 7% PWM: 0 1/min
7 % PWM: 800 1/min (Fan on, comming from 0% PWM)
7 % - 10% PWM: 800 1/min (corresponding to min. speed)