PR159 module in DIN rail enclosure, front three-quarter view: four blue trimmers, fuse and screw terminals

Two fixed PWM outputs via two inputs, adjustable ramps

Article number PR159s17

The PR159s17 uses two inputs to switch on two high-side switched PWM outputs: 5 to 30 V on IN1 switches on output 1, on IN3 output 2. The active output gives a PWM signal with a fixed duty cycle that is set per output: with V-max for output 1 and with V-start for output 2. Ramp-up and Ramp-down set how quickly the output rises and falls. If both inputs are active, IN1 has priority.

Supply 18 to 30 V DC
Input IN1 (A2) and IN3 (A4): 5 to 30 V DC switches on output 1 or 2
Output two PWM outputs, high-side switched, on B3 and B4 and on B5 and B6; fixed duty cycle per output; only one active at a time, IN1 has priority

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Specifications

Specifications
Supply	18 to 30 V DC
Input	IN1 (A2) and IN3 (A4): 5 to 30 V DC switches on output 1 or 2
Output	Two PWM outputs, high-side switched, on B3 and B4 and on B5 and B6; fixed duty cycle per output; only one active at a time, IN1 has priority
Isolation	Input side (A1 to A5) galvanically isolated from outputs and supply (B1 to B6)
Setup	Four trimmers: V-max (duty cycle output 1), V-start (duty cycle output 2), Ramp-up and Ramp-down
Output current	4 A max., both outputs together
Rise and fall rate	Adjustable with the Ramp-up and Ramp-down trimmers
Ambient temperature	0 to 80 °C
Dimensions	45 x 82 mm

Connections

Connections
Terminal	Function
Terminal A1	Isolated 5 V output, for switching the inputs
Terminal A2	IN1: switches on output 1
Terminal A3	Not used
Terminal A4	IN3: switches on output 2
Terminal A5	0 V of the isolated side
Terminal B1	Supply minus
Terminal B2	Supply plus
Terminal B3	Output 1 plus (to the plus of the first load)
Terminal B4	Output 1 minus (to the minus of the first load)
Terminal B5	Output 2 minus (to the minus of the second load)
Terminal B6	Output 2 plus (to the plus of the second load)

Datasheet (PDF)PDF, 146 kB

Setup

Connect the supply to B1 (minus) and B2 (plus), the first load to B3 and B4 and the second load to B5 and B6.
Connect a switch between A1 (5 V) and IN1 (A2) for output 1, and between A1 and IN3 (A4) for output 2.
Set the duty cycle of output 1 with V-max and that of output 2 with V-start. Turning clockwise increases the value.
Set the rate at which the output rises with Ramp-up and the rate at which it falls with Ramp-down.

PR159 series: PWM drivers with two outputs

The modules in the PR159 series drive two high-side switched PWM outputs; only one output is active at a time. The input side (terminals A1 to A5) is galvanically isolated from the outputs and the supply (terminals B1 to B6). Four trimmers on the module (V-max, V-start, Ramp-up and Ramp-down) set the outputs and, on most versions, the ramp rates; turning clockwise increases the value. This lets a hydraulic valve open and close smoothly, for example. The modules run on 18 to 30 V DC, deliver up to 4 A in total and are suitable for 0 to 80 °C; dimensions 45 x 82 mm.

More about the PR159 series