PHD User Guide
16
outputs are suitable for driving LEDs and other small loads.
3.4.1.
Low power, high-side output capabilities
The following table provides specifications for the inputs when used as low power outputs.
Low power output specifications
Item
Min
Nom
Max
Unit
Operational voltage range
9
32
V
Output resistance w.r.t. GND (output off)
26.2
kΩ
Output voltage
4.3
5.0
V
Output current
358
mA
Leakage current (output off)
1
µA
Output pin capacitance
10
nF
3.4.1.1.
Low power, high-side output connections
You must be aware of the following when connecting the low power, high-side outputs:
•
the outputs are connected to the in5 Vdc supply through a pull-up resistor. Each output is de-
rated to 4.3 V. Maximum load on each output is 358 mA.
•
the outputs can provide power to LED or other small loads in a vehicle.
When connecting the low power, high-side outputs, ensure you follow these best practices:
•
the outputs should not be connected to loads that will draw currents greater than the maximum
current.
•
The grounds for the loads should be connected physically close to the PHD power grounds.
The following shows a typical high-side output connection:
Internal to product
High-Side
Output
Application
Load
Figure 3.7. High-side output installation connections