Single Pulse Maximum Demagnetization Energy at 150 C
1. The high side driver (HSD) has a built in voltage clamp for fast demagnetization of inductive loads.
2. The turn off energy is absorbed by the HSD.
3. If the turn off energy is above the HSD maximums shown in following graph, there will be two
options:
a. Use external clamping or a recirculating diode.
b. Use a PWM output that has built in recirculation/clamping.
4. Power trend lines were added to extend the graphs for inductances over 100 mH.
Emax at 13.5 V
Emax at 27 V
Power (Emax at 13.5 V)
Power (Emax at 27 V)
0.1
1
10
100
1000
E (mJ)
L (mH)
700
600
500
400
300
200
100
0
PWMOUT/DOUT/PVGOUT
All PLUS+1
®
module proportional outputs are Pulse Width Modulated (PWM). PWM frequency is software
adjustable using PLUS+1
®
GUIDE. A low frequency dither may also be added with software to some
outputs (see individual module API specifications for PWM outputs that support dither). There are two
modes of PWM operation: open loop and closed loop (current control).
In open loop mode, current can be sourced or sunk, but the output is a PWM duty cycle. Current feedback
may be monitored in open loop mode, but the output is a constant voltage, not a constant current. The
signal line of PVG valves can be driven with an open loop PWM. The PWM driving the control signal must
be set to 0 at the same time as the digital output driving the PVE power pin is set to 0.
Technical Information
PLUS+1® MC0XX-1XX Controller Family
Inputs/outputs types and specifications
©
Danfoss | April 2018
L1321895 | BC00000227en-US0401 | 15
