Specifications

PL 3120/PL 3150/PL 3170 Power Line Smart Transceiver Data Book 155
Note 1: When using the 1Ap-p transmit amplifier, V
A
must be ≥10.8V under typical line voltage and current draw conditions (including
typical V
A
transmit current of 120mA). The minimum transmit V
A
voltage can be relaxed to 8.5V when worst case line voltage,
component tolerance and transmit power supply loading are present (including a maximum V
A
transmit current of 250mA).
Note 2: When using a supply voltage above 12.6V the following formula must be satisfied. The table below the formula illustrates the
formula results for common input values.
V
ATXAVE
< (150-T
AMAX
)/(K*D
MAX
);
Where: V
ATXAVE
= Average V
A
supply voltage while transmitting
T
AMAX
= Maximum ambient temperature inside the product enclosure (degrees C)
D
MAX
= Maximum transmit duty cycle of the device (expressed as a decimal number where 0.64 is the practical max)
K = 8.0 for most 1Ap-p TX amplifier designs and 5.6 for the 2Ap-p TX amplifier designs (See Appendix A)
T
AMAX
D
MAX
V
ATXAVE
w/1Ap-p Amp V
ATXAVE
w/2Ap-p Amp
85C 64% 12.7V 18V (V
A
max limit)
70C 64% 15.6V 18V (V
A
max limit)
85C 45% 18V (V
A
max limit) 18V (V
A
max limit)
70C 55% 18V (V
A
max limit) 18V (V
A
max limit)
Power Supply Options
There are a number of power supply options available for use with the PL Smart Transceivers. These various options
differ in key characteristics such as size and cost. The following table is designed to aid in power supply selection.
Table 5.4 Power Supply Options
Power Supply
Type
Application
Current
Safety-
Isolated
Universal
Input
(see Note 1)
Relative
Cost
(see Note 2)
Relative
Size
(see Note 2)
Pre-Verified
Version
Available
Page
Energy Storage
Capacitor
Input
≤25mA
No No 1 1 Yes 158
Energy Storage
Linear
≤10mA
Yes No 2 2 Yes 161
Traditional
Linear
Any Yes No 3
≥3
No 162
Energy Storage
Switcher
≤10mA
Yes Yes 4 1 Yes 162
Pre-verified
Isolated
Switcher
≤100mA
Yes Yes 3 3 Yes 164
5W Echelon
Power Supply
Plus Coupler
≤140mA
Yes Yes 8 5 Yes 168
10W Echelon
Power Supply
Plus Coupler
≤640mA
Yes Yes 10 7 Yes
168
Off-the-shelf
Switcher
Any Yes Yes
≥5 ≥5
No 169
Full Custom
Switcher
Any Optional Optional
≥3 ≥3
No 169
Notes: 1. Multi-country line voltage support without switches 2. Relative rank of 1 = low and 10 = high.