Parker PHD Series User Manual

25
Outputs
Low-Side Output Parameters
Parameter
Min
Nom
Max
Unit
Output current
500
mA
On resistance
550
m
Max. voltage applied to pin
36
V
Current limit in short-to-ground
condition
1.0
1.5
1.9
A
Max PWM Frequency
2000
Hz
Pull-down resistance (PHD28/50)
402.4
k
Pull-down resistance (PHD70)
436.5
k
Feedback gain (V
micro
/V
pin
) (see note)
3/33
V/V
Feedback max readable voltage
33
V
Feedback cut-off (3dB) frequency
32
Hz
Note: V
micro
is the voltage at the micro A/D pin, and V
pin
is at the external connector pin. The
tolerance of the V
pin
measurement using nominal gain is ±0.5 V.
Low-Side Output Error Detection
Driver State
Output Condition
Feedback voltage
Error Detected?
Off
Open
0 V
No
Off
Short-to-battery
Vsw/11
Yes
Off
Short-to-ground
0 V
No
On
Open
0 V
No
On
Short
>Vsw/11 (see note)
Yes
Note: An over-temperature fault results in driver output cycling.
4.1.1.1. Low-side output connections
When connecting low-side outputs, note that
▪ low-side outputs are connected to a common internal ground point that is
connected to the battery ground (GND).
▪ low-side outputs provide switched ground to any load type in a vehicle.
▪ low-side outputs can sink up to 0.5 A.
When connecting a load to a low-side output, ensure that the load will not drive
currents greater than the maximum specified peak current or the maximum
specified continuous current.

Parker PHD Series Specifications

General

Brand	Parker
Model	PHD Series
Category	Control Unit
Language	English