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PI31xx Series
High Density Isolated DC-DC Converters
Description
Features
The PI31xx is a family of high density, isolated DC-DC Zero-Voltage
Switching (ZVS) converter modules integrating controller, power
switches, planar magnetics, and support components all
within a high density surface-mount package. This complete solution
utilizes a high performance ZVS topology enabling high switching
frequencies and providing best in class power density.
The high switching frequency reduces input and output filtering
requirements, further decreasing size and cost of the overall solution.
nComplete isolated DC-DC
These high density converter modules are offered in three input
voltage operating ranges; 48 Vin nominal for communication
applications, 28 Vin nominal for rugged high temperature
or M-Grade applications, and 24 Vin nominal for industrial
applications. All PI31xx converters offer a similar function
and feature set.
with Zero Voltage Switching Module
n50 W / 60 W output power
nEfficiency up to 89% (dependent upon converter model)
nOutput voltage sensing without opto coupler use
for higher reliability
nThree input voltage ranges for Communication,
Industrial, Rugged/M-Grade Applications
nCommunication Converters have Max peak input voltage
of 100V/100ms (non-operating)
nSurface Mount 0.87” x 0.65” x 0.265” high density package
Fully equipped with a variety of programmable features, the PI31xx
includes output voltage trimming, programmable soft-start
capability, and remote on / off ENABLE. There is also a temperature
monitor function providing an analog output voltage proportional
to the internal module temperature.
The PI31xx is self-protected against fault conditions including:
input over-voltage, under-voltage lockout, over-temperature, and
output over-voltage protection. A constant current limit threshold is
employed to protect against short circuit and overload conditions.
All fault conditions have an auto-restart function.
n900kHz switching frequency, minimizes input filtering
and reduces output capacitance
nOn/Off Control, positive logic ENABLE
nWide trim range +10/-20% Trim
nTemperature Monitor (TM) & Over-Temperature
Protection (OTP)
nInput UVLO & OVLO and output OVP
nOver current protection with auto restart
nAdjustable soft-start
n2,250 V input to output isolation
Cool-Power
InputOutput
SetRange
IOUTMax
Networking
Communications (-40°C to 125°C)
PI3101-00-HVIZ
3.3 V
3.0 to 3.6 V
18 A
12 V
9.6 to 13.2 V
5A
18 V
16.2 to 19.8 V
3.3 A
5V
4.0 to 5.5 V
10 A
12 V
9.6 to 13.2 V
4.2 A
PI3108-00-HVMZ
3.3 V
3.0 to 3.6 V
10 A
PI3109-00-HVMZ
5V
4.0 to 5.5 V
10 A
PI3106-00-HVMZ
12 V
9.6 to 13.2 V
4.2 A
PI3111-00-HVMZ
15 V
12 to 16.5 V
3.3 A
36 – 75 Vin
PI3105-00-HVIZ
PI3110-01-HVIZ
41 – 57 Vin
Applications
Industrial
Rugged Defense Applications
Space Constrained System
Isolated, Board-level Power
Industrial (-40°C to 125°C)
PI3109-01-HVIZ
18 – 36 Vin
PI3106-01-HVIZ
M-Grade (-55°C to 125°C)
Thermally Enhanced, Surface-Mount
16 – 50 Vin
Power-System-in-Package (PSiP)
0.87” x 0.65” x 0.265”
22 mm x 16.5 mm x 6.7 mm
Weight: 7.8 Grams
vicorpower.com • 800 927.9474
Rev 1.1 5/2014
Typical Application
Input Fuse
Input Filter
Vout
Lin
+
Vin
Cbulk
Picor Cool-Power®
Chf
Cout
DC-DC Converter
Css
Rload
Optional
Evaluation Board, PI31xx-xx-EVAL1
Recommended Filters
Converter Type
Filter
Evaluation Board
48 V Communications
QPI-12LZ
QPI-12-CB1
24 V Industrial
QPI-11LZ
QPI-11-CB1
28 V M-Grade
MQPI-18LP
MQPI-18-CB1
Product Outline Drawing
1.12 TYP
.044
6.73±.25
.265±.010
22.0
.87
3.01
.118
15.99
.630
1.33
.052
(4) PL.
3.01
.118
2X3.05
.120
4X.94
.037
8.00
.315
1.49
.059
(8) PL.
CL
3.26
.128
2X3.24
.128
4X1.32
.052
15.74
.620
1.38
.054
TYP
7.08
.279
6.08
.239
5.08
.200
12.05
.474
.51
.020
TYP
+OUT
7.74
.305
7.55
.297
3.26
.128
+IN
2X12.24
.482
7.08
.279
BOTTOM VIEW
9.50
.374
ALL LEADS
[ ]
SEATING PLANE
(10 ±)
CL
6.08
.239
5.08
.200
4.08
.161
2X.70
.028
TOP VIEW (COMPONENT SIDE)
INPUT
OUTPUT
INPUT
OUTPUT
2X7.10
.280
16.5
.65
4.08
.161
2X3.43
.135
SGND
TM
TRIM/SS
ENABLE
-OUT
4X7.48
.295
2X8.00
.315
-IN
RECOMMENDED LAND PATTERN
(COMPONENT SIDE SHOWN)
vicorpower.com • 800 927.9474
Rev 1.1 5/2014
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