Data Sheet

Cool-Power®
48 Volt
48 VIN and 3.3 - 18 VOUT, Cool-Power ZVS Isolated DC-DC Converter Modules
Product Description
Features
The Cool-Power ZVS Isolated Converter Module Series
consists of high density isolated DC-DC converters
implementing Zero Voltage Switching topology.
• Efficiency up to 89%
The 48 Vin Cool-Power series operates over a wide input
range of 36 V to 75 V with 3.3 V and 12 V output models and a
narrower range of 41 V to 57 V at 18 V output for PoE and
other applications. Both model sets produce 60W of output
power, yeilding an unprecedented power density of 400
W/in3.
• Proprietary “Double-Clamped” ZVS Buck-Boost Topology
• High switching frequency minimizes input filter
requirements and reduces output capacitance
• Proprietary isolated magnetic feedback
• Small footprint (0.57 in2) enables PCB area savings
• Very low profile (0.265 in)
• On/Off Control, positive logic
• Wide trim range +10/-20%
• Temperature Monitor (TM) &
Output Voltage
Device
Set
IOUT Max
Range
PI3101-00-HVIZ
3.3 V
2.97 to 3.63 V
18 A
PI3105-00-HVIZ
PI3110-01-HVIZ
12 V
9.6 to 13.2 V
16.2 to 19.8 V
5A
18 V
3.3 A
These converter modules are surface mountable and only
~.5" square in area achieving ~50% space reduction versus
conventional solutions.
A switching frequency of 900 kHz allows for small input and
output filter components which further reduces the total size
and cost of the overall system solution. The output voltage is
sensed and fed back to the internal controller using a
proprietary isolated magnetic feedback scheme which allows
for high bandwidth and good common mode noise immunity.
The 48 Volt PI31xx series requires no external feedback
compensation and offers a total solution with a minimum
number of external components. A rich feature set is offered,
including output voltage trim capability, output over-voltage
protection, adjustable soft-start, over-current protection with
auto-restart, over and under input voltage lockout and a
temperature monitoring and protection function that
provides an analog voltage proportional to the die
temperature as shut down and alarm capabilities.
Over-Temperature Protection (OTP)
• Input UVLO & OVLO and output OVP
• Over current protection with auto restart
• Adjustable soft-start
• 2250 Vdc input to output isolation
• Surface Mountable 0.87” x 0.65” x 0.265” package
Applications
•
•
•
•
•
•
•
Space Constrained Systems
Isolated Board Level Power
Network Power Systems
Telecommunications
Distributed Power Architecture
PoE-Power Over Ethernet
IPoL - Isolated Point of Load Power
Package Information
• Surface Mountable 0.87” x 0.65” x 0.265” package
• Weight = 7.8 grams
Cool-Power®
Rev 1.2
vicorpower.com
Page 1 of 22
02/2015
800 927.9474
48 Volt PI31xx
Contents
Contents
Page
Order Information
3
Absolute Maximum Ratings
4
Functional Block Diagram
5
Pin Description
6
Package Pin-Out
6
PI3101-00-HVIZ Electrical Characteristics
7
PI3105-00-HVIZ Electrical Characteristics
11
PI3110-01-HVIZ Electrical Characteristics
15
Functional Description
19
Input Power Pins
19
ENABLE
19
TRIM/SS
19
TM
20
SGND
20
Output Power Pins
20
Package Outline & Recommended PCB Land Pattern
21
Warranty Information
22
Cool-Power®
Rev 1.2
vicorpower.com
Page 2 of 22
02/2015
800 927.9474
48 Volt PI31xx
Order Information
Cool-Power
PI3101-00-HVIZ
PI3105-00-HVIZ
PI3110-01-HVIZ
Also Available
PI3109-01-HVIZ
PI3106-01-HVIZ
PI3109-00-HVMZ
PI3106-00-HVMZ
PI3111-00-HVMZ
Transport
VIN
Vout
Iout Max
Package
36 - 75 V
36 - 75 V
41 - 57 V
3.3 V
12 V
18 V
18 A
5A
3.3 A
0.87” x 0.65” x 0.265”
0.87” x 0.65” x 0.265”
0.87” x 0.65” x 0.265”
TRAY
TRAY
TRAY
18 - 36 V
18 - 36 V
16 - 50 V
16 - 50 V
16 - 5 0V
5V
12 V
5V
12 V
15 V
10 A
4.2 A
10 A
4.2 A
3.33 A
0.87” x 0.65” x 0.265”
0.87” x 0.65” x 0.265”
0.87” x 0.65” x 0.265”
0.87” x 0.65” x 0.265”
0.87” x 0.65” x 0.265”
TRAY
TRAY
TRAY
TRAY
TRAY
Cool-Power®
Rev 1.2
vicorpower.com
Page 3 of 22
02/2015
800 927.9474
Media
48 Volt PI31xx
Absolute Maximum Ratings
Name
Rating
+IN to -IN Max Operating Voltage
+IN to -IN Max Peak Voltage
PI3101-00-HVIZ/PI3105-00-HVIZ
PI3110-01-HVIZ
-1.0 to 75 Vdc (operating)
-1.0 to 57 Vdc (operating)
PI3101-00-HVIZ/PI3105-00-HVIZ
PI3110-01-HVIZ
100 Vdc (non-operating 100ms)
80 Vdc (non-operating 100ms)
ENABLE to –IN
-0.3 to 6.0 Vdc
TM to –IN
-0.3 to 6.0 Vdc
TRIM/SS to –IN
-0.3 to 6.0 Vdc
+OUT to –OUT
See relevant model output section
Continuous Output Current
See relevant model output section
Peak Output Current
See relevant model output section
Operating Junction Temperature
-40 to 125°C
Storage Temperature
-50 to 125°C
Case Temperature During Reflow
245°C
Cool-Power®
Rev 1.2
vicorpower.com
Page 4 of 22
02/2015
800 927.9474
48 Volt PI31xx
Functional Block Diagram
+OUT
RUN
BIAS
START
BIAS
Synchronous
Rectifier
-OUT
Vcc
ZVS POWER
TRAIN
+IN
Driver
Driver
ZVS POWER
TRAIN
ZVS
Fast Current Limit
+
-
-IN
DC
FB
Output OVP
+
-
FB
DC
+
-
DC
+
DC
Timing
Logic
Reset
Enable
Period Ramp
+
-
+
On-Duty Ramp
DC
LFF
ENB
ENABLE
+5V
DC
Slow Current Limit
Input UVP
+
-
+
-
120us
delay
DC
Input OVP
+
-
CFB2
EA Fault
RFB1
CFB1
DC
120us
delay
+
-
+
-
Over Temp
DC
FB
+
-
Error Amp
+
DC
TM
ENB
TRIM/SS
RSS
VREF
1.22V
Temp
Sensor
CSS INT
SGND
Fault
Cool-Power®
Rev 1.2
vicorpower.com
Page 5 of 22
02/2015
800 927.9474
Fault
Latch
And
Reset
Logic
48 Volt PI31xx
Pin Description
Pin Name
Description
+IN
Primary side positive input voltage terminals.
-IN
Primary side negative input voltage terminals.
ENABLE
Converter enable option, functions as 5V reference and on/off control pin. Pull low for off.
TRIM/SS
External soft start pin and trim function. Connect to SGND or ENABLE through resistor for trim up or trim down.
TM
Temperature measurement output pin.
SGND
Signal ground, primary side referenced.
+OUT
Isolated secondary DC output voltage positive terminals.
-OUT
Isolated secondary DC output voltage negative terminals.
Package Pin-Out
+IN
+OUT
SGND
TM
Cool-Power
TRIM/SS
ENABLE
-IN
MADE
IN
USA
-OUT
U.S. PATS. LISTED ON PACKING MATERIALS & DATASHEETS
Cool-Power®
Rev 1.2
vicorpower.com
Page 6 of 22
02/2015
800 927.9474
48 Volt PI31xx
PI3101-00-HVIZ Electrical Characteristics
Unless otherwise specified: 36 V < VIN < 75 V, 0 A < IOUT < 18 A, -40°C < TCASE < 100°C(1)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
36
48
32.5
30.5
34.0
32.0
2
78
80.0
1.6
2.5
4
0.120
1.43
75
1.0
35.0
33.0
Vdc
V/µs
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
mAdc
W
W
Adc
Input Specifications
Input Voltage Range
Input dv/dt (1)
Input Under-Voltage Turn-on
Input Under-Voltage Turn-off
Input Under-Voltage Hysteresis
Input Over-Voltage Turn-on
Input Over-Voltage Turn-off
Input Over-Voltage Hysteresis
Input Quiescent Current
Input Idling Power
Input Standby Power
Input Current Full Load
VINDVDT
VUVON
VUVOFF
VUVH
VOVON
VOVOFF
VOVH
IQ
PIDLE
PSBY
IIN
Input Reflected Ripple Current
IINRR
Recommended Ext Input
Capacitance
CIN
Output Voltage Set Point
VOUT
Total Output Accuracy
VIN
VOA
Output Voltage Trim Range
Output Current Range
Over Current Protection
Efficiency – Full Load
Efficiency – Half Load
Output OVP Set Point
Output Ripple Voltage
Switching Frequency
Output Turn-on Delay Time
Output Turn-off Delay Time
Soft-Start Ramp Time
Maximum Load Capacitance
VOADJ
IOUT
IOCP
ηFL
ηHL
VOVP
VORPP
fSW
tONDLY
tOFFDLY
tSS
COUT
Load Transient Deviation
VODV
Load Transient Recovery Time
tOVR
Maximum Output Power
POUT
Name
+OUT to -OUT
Continuous Output Current
Peak Output Current
VIN = 75 V
IO = 1.8 A
IO = 1.8 A
IO = 1.8 A
IO = 1.8 A
IO = 1.8 A
IO = 1.8 A
VIN = 48 V, ENABLE = 0 V
VIN = 48 V, IOUT = 0 A
VIN = 48 V, ENABLE = 0 V
TCASE = 100°C IOUT = 18 A ηFL = 86.5% typical VIN = 48 V
LIN = 2 µH CIN = 47 µF 100 V electrolytic
+ 2 x 1 µF 100 V X7R ceramic
CIN = 47 µF 100 V electrolytic + 2 x 1 µF 100 V X7R ceramic
CIN = Cbulk + Chf
Output Specifications
IOUT = 9 A
0°C <TCASE < 100°C
-40°C <TCASE < 0°C
75.7
77.7
VIN = VUVON to ENABLE = 5 V
VIN = VUVOFF to ENABLE < 1.8 V
ENABLE = 5 V to 90% VOUT CREF = 0
CREF = 1 µF, COUT = Al Electrolytic
IOUT = 25% step 0.1 A/µS
COUT = 12 x10 µF 10 V X7R
IOUT = 25% step 0.1 A/µS
COUT = 12 x10 µF 10 V X7R
VOUT - 1%
mApp
49
µF
3.3
3.9
COUT = 12 x 10 µF 10 V X7R DC-20 MHz
10
-3
-4
-10%
18.8
84.5
TCASE = 100°C, VIN = 48 V
TCASE = 100°C, VIN = 48 V
81.0
82.3
26
86.5
84.5
4.1
75
900
80
10
230
+3
+3
10%
18
34
4.3
10000
75
mV
120
µs
60
W
Absolute Maximum Output Ratings
Rating
-0.5 V to 4.5 Vdc
18 Adc
34 Adc
[1]
These parameters are not production tested but are guaranteed by design, characterization and correlation with statistical process control.
Unless otherwise specified, ATE tests are completed at room temperature.
[2]
Current flow sourced by a pin has a negative sign.
Cool-Power®
Rev 1.2
vicorpower.com
Page 7 of 22
02/2015
800 927.9474
Vdc
%
%
%
Adc
Adc
%
%
Vdc
mVpp
kHz
ms
µs
µs
µF
48 Volt PI31xx
PI3101-00-HVIZ Electrical Characteristics
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
4.65
-3.3
-120
1.95
1.8
4.9
-2.6
-90
2.5
2.35
150
10
10
5.15
-1.9
-60
3.05
2.9
Vdc
mAdc
µA
Vdc
Vdc
mV
µs
µs
pF
Hz
ENABLE
DC Voltage Reference Output
Output Current Limit(2)
Start Up Current Limit(2)
Module Enable Voltage
Module Disable Voltage
Disable Hysteresis
Enable Delay Time
Disable Delay Time
Maximum Capacitance
Maximum External Toggle Rate
VERO
IECL
IESL
VEME
VEMD
VEDH
tEE
tED
CEC
fEXT
Trim Voltage Reference
Internal Capacitance
External Capacitance
Internal Resistance
VREF
CREFI
CREF
RREFI
ENABLE = 3.3 V
ENABLE = 1 V
1500
1
TRIM/SS
1.22
10
1
10
Vdc
nF
µF
kohms
TM (Temperature Monitor)
Temperature Coefficient[1]
Temperature Full Range Accuracy[1]
Drive Capability
TM Output Setting
TMTC
TMACC
ITM
VTM
Junction Temperature Shutdown[1]
Junction-to-Case Thermal Impedance
Case-to-Ambient Thermal Impedance
TMAX
RΘJ-C
RΘC-A
10
-5
-100
Ambient Temperature = 300°K
5
3.00
mV/°K
°K
µA
V
Thermal Specification
130
Mounted on 9 in2 1oz. Cu 6 layer PCB 25°C
135
3
8.65
140
°C
°C/W
°C/W
10
A
Regulatory Specification
IEC 60950-1:2005 (2nd Edition),
EN 60950-1:2006
IEC 61000-4-2
UL 60950-1:2007
CAN/CSA C22.2 NO. 60950-1-07
Recommended Input Fuse Rating
IFUSE
Fast acting LITTLEFUSE Nano2 Series Fuse
4
[1]
These parameters are not production tested but are guaranteed by design, characterization and correlation with statistical process control.
Unless otherwise specified, ATE tests are completed at room temperature.
[2]
Current flow sourced by a pin has a negative sign.
Cool-Power®
Rev 1.2
vicorpower.com
Page 8 of 22
02/2015
800 927.9474
48 Volt PI31xx
PI3101-00-HVIZ Electrical Characteristics
11 mm Heatsink Thermal Derating
Conversion Efficiency at 100°C
85
80
Efficiency
75
100°C 36 V
100°C 48 V
100°C 60 V
70
65
60
55
50
45
40
1
2
3
4
5
6
7
8
Load Currrent (Amps)
90
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
36 V 0 LFM
48 V 0 LFM
60 V 0 LFM
36 V 200 LFM
48 V 200 LFM
60 V 200 LFM
36 V 600 LFM
48 V 600 LFM
60 V 600 LFM
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105110
9 10 11 12 13 14 15 16 17 18
Temp °C
Load Curent (Amps)
Figure 4 — Load Currrent vs Ambient Temperature (11mm Heat Sink)
Figure 1 — Conversion Efficiency
Load Currrent (Amps)
No Heatsink Thermal Derating
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
36 V 0 LFM
48 V 0 LFM
60 V 0 LFM
36 V 200 LFM
48 V 200 LFM
60 V 200 LFM
36 V 600 LFM
48 V 600 LFM
60 V 600 LFM
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Temp °C
Figure 5 — Start Up CREF = 0
(VIN = 36 V, IOUT = 18 A, CR, COUT = 12 X 10 µF X7R Ceramic)
Figure 2 — Load Currrent vs Temperature (without Heat Sink)
Load Currrent (Amps)
6.3 mm Heatsink Thermal Derating
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
36 V 0 LFM
48 V 0 LFM
60 V 0 LFM
36 V 200 LFM
48 V 200 LFM
60 V 200 LFM
36 V 600 LFM
48 V 600 LFM
60 V 600 LFM
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105110
Temp °C
Figure 3 — Load Currrent vs Temperature (6.3mm Heat Sink)
Figure 6 — Start Up CREF = 0
(VIN = 48 V, IOUT = 18 A, CR, COUT = 12 X 10 µF X7R Ceramic)
Cool-Power®
Rev 1.2
vicorpower.com
Page 9 of 22
02/2015
800 927.9474
48 Volt PI31xx
PI3101-00-HVIZ Electrical Characteristics
Figure 7 — Start Up CREF = 0
(VIN = 75 V, IOUT = 18 A, CR, COUT = 12 X 10 µF X7R Ceramic)
Figure 10 — Thermal Image
(VIN = 48 V, IOUT = 18 A, CR, 0 LFM Evaluation PCB)
Figure 8 — Transient Response (VIN = 48 V, IOUT = 9 - 18 A,
0.1 A/µs, COUT = 12 X 10 µF X7R Ceramic)
Figure 9 — Output Ripple
(VIN = 48 V, IOUT = 18 A, CR, COUT = 12 X 10 µF X7R Ceramic)
Cool-Power®
Rev 1.2
vicorpower.com
Page 10 of 22
02/2015
800 927.9474
48 Volt PI31xx
PI3105-00-HVIZ Electrical Characteristics
Unless otherwise specified: 36 V < VIN < 75 V, 0 A < IOUT < 5 A, -40°C < TCASE < 100°C(1)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
36
48
32.5
30.5
34.0
31.5
2.5
78
80
2
2.5
4.1
0.120
1.412
75
1.0
35.0
33
Vdc
V/µs
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
mAdc
W
W
Adc
Input Specifications
Input Voltage Range
Input dv/dt (1)
Input Under-Voltage Turn-on
Input Under-Voltage Turn-off
Input Under-Voltage Hysteresis
Input Over-Voltage Turn-on
Input Over-Voltage Turn-off
Input Over-Voltage Hysteresis
Input Quiescent Current
Input Idling Power
Input Standby Power
Input Current Full Load
VINDVDT
VUVON
VUVOFF
VUVH
VOVON
VOVOFF
VOVH
IQ
PIDLE
PSBY
IIN
Input Reflected Ripple Current
IINRR
Recommended Ext Input
Capacitance
CIN
Output Voltage Set Point
VOUT
Total Output Accuracy
VIN
VOA
Output Voltage Trim Range
Output Current Range
Over Current Protection
Efficiency – Full Load
Efficiency – Half Load
Output OVP Set Point
Output Ripple Voltage
Switching Frequency
Output Turn-on Delay Time
Output Turn-off Delay Time
Soft-Start Ramp Time
Maximum Load Capacitance
VOADJ
IOUT
IOCP
ηFL
ηHL
VOVP
VORPP
fSW
tONDLY
tOFFDLY
tSS
COUT
Load Transient Deviation
VODV
Load Transient Recovery Time
tOVR
Maximum Output Power
POUT
VIN = 75 V
IO = 5 A
IO = 5 A
IO = 5 A
IO = 5 A
IO = 5 A
IO = 5 A
VIN = 48 V, ENABLE = 0 V
VIN = 48 V, IOUT = 0 A
VIN = 48 V, ENABLE = 0 V
TCASE = 100°C IOUT = 5 A ηFL = 88.5% typical VIN = 48 V
75.7
77.7
LIN = 2 µH CIN = 47 µF 100 V electrolytic
+ 2 x 1 µF 100 V X7R ceramic
CIN = 47 µF 100 V electrolytic + 2 x 1 µF 100 V X7R ceramic
CIN = Cbulk + Chf
Output Specifications
IOUT = 2.5 A
0°C <TCASE < 100°C
-40°C <TCASE < 0°C
COUT = 6 x 4.7 µF 16 V X7R DC-20 MHz
VIN = VUVON to ENABLE = 5 V
VIN = VUVOFF to ENABLE < 1.8 V
ENABLE = 5 V to 90% VOUT CREF = 0
CREF = 0.22 µF, COUT = Al Electrolytic
IOUT = 50% step 0.1 A/µS
COUT = 6 x 4.7 µF 16 V X7R
IOUT = 50% step 0.1 A/µS
COUT = 6 x 4.7 µF 16 V X7R
VOUT - 1%
Name
+OUT to -OUT
Absolute Maximum Output Ratings
Rating
-0.5 V to 16 Vdc
Continuous Output Current
Peak Output Current
5 Adc
10 Adc
10
mApp
49
µF
12.0
-3
-4
-20%
5.5
86.5
84.0
13.8
TCASE = 100°C, VIN = 48 V
TCASE = 100°C, VIN = 48 V
81.0
82.3
7.9
88.5
86.0
14.5
175
900
80
10
230
+3
+3
10%
5
10
15.3
1200
220
mV
120
µs
60
W
[1]
These parameters are not production tested but are guaranteed by design, characterization and correlation with statistical process control.
Unless otherwise specified, ATE tests are completed at room temperature.
[2]
Current flow sourced by a pin has a negative sign.
Cool-Power®
Rev 1.2
vicorpower.com
Page 11 of 22
02/2015
800 927.9474
Vdc
%
%
%
Adc
Adc
%
%
Vdc
mVpp
kHz
ms
µs
µs
µF
48 Volt PI31xx
PI3105-00-HVIZ Electrical Characteristics
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
4.65
-3.3
-120
1.95
1.8
4.9
-2.6
-90
2.5
2.35
150
10
10
5.15
-1.9
-60
3.05
2.9
Vdc
mAdc
µA
Vdc
Vdc
mV
µs
µs
pF
Hz
ENABLE
DC Voltage Reference Output
Output Current Limit(2)
Start Up Current Limit(2)
Module Enable Voltage
Module Disable Voltage
Disable Hysteresis
Enable Delay Time
Disable Delay Time
Maximum Capacitance
Maximum External Toggle Rate
VERO
IECL
IESL
VEME
VEMD
VEDH
tEE
tED
CEC
fEXT
Trim Voltage Reference
Internal Capacitance
External Capacitance
Internal Resistance
VREF
CREFI
CREF
RREFI
ENABLE = 3.3 V
ENABLE = 1 V
1500
1
TRIM/SS
1.235
10
0.22
10
Vdc
nF
µF
kohms
TM (Temperature Monitor)
Temperature Coefficient[1]
Temperature Full Range Accuracy[1]
Drive Capability
TM Output Setting
TMTC
TMACC
ITM
VTM
Junction Temperature Shutdown[1]
Junction-to-Case Thermal Impedance
Case-to-Ambient Thermal Impedance
TMAX
RΘJ-C
RΘC-A
10
-5
-100
Ambient Temperature = 300°K
5
3.00
mV/°K
°K
µA
V
Thermal Specification
130
Mounted on 9 in2 1oz. Cu 6 layer PCB 25°C
135
3
7.65
140
°C
°C/W
°C/W
10
A
Regulatory Specification
IEC 60950-1:2005 (2nd Edition),
EN 60950-1:2006
IEC 61000-4-2
UL 60950-1:2007
CAN/CSA C22.2 NO. 60950-1-07
Recommended Input Fuse Rating
IFUSE
Fast acting LITTLEFUSE Nano2 Series Fuse
4
[1]
These parameters are not production tested but are guaranteed by design, characterization and correlation with statistical process control.
Unless otherwise specified, ATE tests are completed at room temperature.
[2]
Current flow sourced by a pin has a negative sign.
Cool-Power®
Rev 1.2
vicorpower.com
Page 12 of 22
02/2015
800 927.9474
48 Volt PI31xx
PI3105-00-HVIZ Electrical Characteristics
Conversion Efficiency at 100°C
11 mm Heatsink Thermal Derating
90
Efficiency
85
80
36 V 100°C
48 V 100°C
60 V 100°C
75
70
65
60
55
50
Load Currrent (Amps)
95
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
36 V 0 LFM
48 V 0 LFM
60 V 0 LFM
36 V 200 LFM
48 V 200 LFM
60 V 200 LFM
36 V 600 LFM
48 V 600 LFM
60 V 600 LFM
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6 4.8 5
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110
Load Curent (Amps)
Temp °C
Figure 14 — Load Currrent vs Ambient Temperature (11mm Heat Sink)
Figure 11 — Conversion Efficiency
Load Currrent (Amps)
No Heatsink Thermal Derating
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
36 V 0 LFM
48 V 0 LFM
60 V 0 LFM
36 V 200 LFM
48 V 200 LFM
60 V 200 LFM
36 V 600 LFM
48 V 600 LFM
60 V 600 LFM
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Temp °C
Figure 12 — Load Currrent vs Temperature (without Heat Sink)
Figure 15 — Start Up CREF = 0
(VIN = 36 V, IOUT = 5 A, CR, COUT = 6 X 4.7 µF X7R Ceramic)
Load Currrent (Amps)
6.3 mm Heatsink Thermal Derating
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
36 V 0 LFM
48 V 0 LFM
60 V 0 LFM
36 V 200 LFM
48 V 200 LFM
60 V 200 LFM
36 V 600 LFM
48 V 600 LFM
60 V 600 LFM
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100105 110
Temp °C
Figure 13 — Load Currrent vs Temperature (6.3mm Heat Sink)
Figure 16 — Start Up CREF = 0
(VIN = 48 V, IOUT = 5 A, CR, COUT = 6 X 4.7 µF X7R Ceramic)
Cool-Power®
Rev 1.2
vicorpower.com
Page 13 of 22
02/2015
800 927.9474
48 Volt PI31xx
PI3105-00-HVIZ Electrical Characteristics
Figure 17 — Start Up CREF = 0
(VIN = 75 V, IOUT = 5 A, CR, COUT = 6 X 4.7 µF X7R Ceramic)
Figure 20 — Thermal Image
(VIN = 48 V, IOUT = 5 A, CR, 0 LFM Evaluation PCB)
Figure 18— Transient Response (VIN = 48 V, IOUT = 3.75 - 5 A,
0.1 A/µs, COUT = 6 X 4.7 µF X7R Ceramic)
Figure 19 — Output Ripple
(VIN = 48 V, IOUT = 5 A, CR, COUT = 6 X 4.7 µF X7R Ceramic)
Cool-Power®
Rev 1.2
vicorpower.com
Page 14 of 22
02/2015
800 927.9474
48 Volt PI31xx
PI3110-01-HVIZ Electrical Characteristics
Unless otherwise specified: 41 V < VIN < 57 V, 0 A < IOUT < 3.3 A, -0°C < TCASE < 100°C(1)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
41
52
37.1
34.5
38.6
36.2
2.4
60
61.3
1.3
2.5
3.3
0.130
1.28
57
1.0
40.2
38
Vdc
V/µs
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
mAdc
W
W
Adc
Input Specifications
Input Voltage Range
Input dv/dt (1)
Input Under-Voltage Turn-on
Input Under-Voltage Turn-off
Input Under-Voltage Hysteresis
Input Over-Voltage Turn-on
Input Over-Voltage Turn-off
Input Over-Voltage Hysteresis
Input Quiescent Current
Input Idling Power
Input Standby Power
Input Current Full Load
VIN
VINDVDT
VUVON
VUVOFF
VUVH
VOVON
VOVOFF
VOVH
IQ
PIDLE
PSBY
IIN
Input Reflected Ripple Current
IINRR
Recommended Ext Input
Capacitance
CIN
Output Voltage Set Point
Total Output Accuracy
Output Voltage Trim Range
Output Current Range
Over Current Protection
Efficiency – Full Load
Efficiency – Half Load
Output OVP Set Point
Output Ripple Voltage
Switching Frequency
Output Turn-on Delay Time
Output Turn-off Delay Time
Soft-Start Ramp Time
Maximum Load Capacitance
VOUT
VOA
VOADJ
IOUT
IOCP
ηFL
ηHL
VOVP
VORPP
fSW
tONDLY
tOFFDLY
tSS
COUT
Load Transient Deviation
VODV
Load Transient Recovery Time
tOVR
Maximum Output Power
POUT
Name
+OUT to -OUT
Continuous Output Current
Peak Output Current
VIN = 57 V
IO = 3.3 A
IO = 3.3 A
IO = 3.3 A
IO = 3.3 A
IO = 3.3 A
IO = 3.3 A
VIN = 52 V, ENABLE = 0 V
VIN = 52 V, IOUT = 0 A
VIN = 52 V, ENABLE = 0 V
TCASE = 100°C IOUT = 3.3 A ηFL = 89% typical VIN = 52 V
LIN = 2 µH CIN = 47 µF 100 V electrolytic
+ 2 x 1 µF 100 V X7R ceramic
CIN = 47 µF 100 V electrolytic + 2 x 1 µF 100 V X7R ceramic
CIN = Cbulk + Chf
Output Specifications
IOUT = 1.65 A
-0°C <TCASE < 100°C
57.5
59
COUT = 6 x 2.2 µF 25 V X7R DC-20 MHz
VIN = VUVON to ENABLE = 5 V
VIN = VUVOFF to ENABLE < 1.8 V
ENABLE = 5 V to 90% VOUT CREF = 0
CREF = 0.68µF, COUT = Al Electrolytic
IOUT = 50% step 0.1 A/µS
COUT = 6 x 2.2 µF 25 V X7R
IOUT = 50% step 0.1 A/µS
COUT = 6 x 2.2 µF 25 V X7R
VOUT - 1%
20
mApp
49
µF
18
-3
-10%
3.8
87.0
84.0
21.7
TCASE = 100°C, VIN = 52 V
TCASE = 100°C, VIN = 52 V
62.5
63.5
5.8
89.0
86.0
22.5
275
900
80
10
230
+3
10%
3.3
9
220
360
mV
100
µs
60
W
Absolute Maximum Output Ratings
Rating
-0.5 V to 24.5 Vdc
4.2 Adc
12 Adc
[1]
These parameters are not production tested but are guaranteed by design, characterization and correlation with statistical process control.
Unless otherwise specified, ATE tests are completed at room temperature.
[2]
Current flow sourced by a pin has a negative sign.
Cool-Power®
Rev 1.2
vicorpower.com
Page 15 of 22
02/2015
800 927.9474
23.3
Vdc
%
%
Adc
Adc
%
%
Vdc
mVpp
kHz
ms
µs
µs
µF
48 Volt PI31xx
PI3110-01-HVIZ Electrical Characteristics
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
4.65
-3.3
-120
1.95
1.8
4.9
-2.6
-90
2.5
2.35
150
10
10
5.15
-1.9
-60
3.05
2.9
Vdc
mAdc
µA
Vdc
Vdc
mV
µs
µs
pF
Hz
ENABLE
DC Voltage Reference Output
Output Current Limit(2)
Start Up Current Limit(2)
Module Enable Voltage
Module Disable Voltage
Disable Hysteresis
Enable Delay Time
Disable Delay Time
Maximum Capacitance
Maximum External Toggle Rate
VERO
IECL
IESL
VEME
VEMD
VEDH
tEE
tED
CEC
fEXT
Trim Voltage Reference
Internal Capacitance
External Capacitance
Internal Resistance
VREF
CREFI
CREF
RREFI
ENABLE = 3.3 V
ENABLE = 1 V
1500
1
TRIM/SS
1.23
10
0.68
10
Vdc
nF
µF
kohms
TM (Temperature Monitor)
Temperature Coefficient[1]
Temperature Full Range Accuracy[1]
Drive Capability
TM Output Setting
TMTC
TMACC
ITM
VTM
Junction Temperature Shutdown[1]
Junction-to-Case Thermal Impedance
Case-to-Ambient Thermal Impedance
TMAX
RΘJ-C
RΘC-A
10
-5
-100
Ambient Temperature = 300°K
5
3.00
mV/°K
°K
µA
V
Thermal Specification
130
Mounted on 9 in2 1oz. Cu 6 layer PCB 25°C
135
3
10.6
140
°C
°C/W
°C/W
10
A
Regulatory Specification
IEC 60950-1:2005 (2nd Edition),
EN 60950-1:2006
IEC 61000-4-2
UL 60950-1:2007
CAN/CSA C22.2 NO. 60950-1-07
Recommended Input Fuse Rating
IFUSE
Fast acting LITTLEFUSE Nano2 Series Fuse
4
[1]
These parameters are not production tested but are guaranteed by design, characterization and correlation with statistical process control.
Unless otherwise specified, ATE tests are completed at room temperature.
[2]
Current flow sourced by a pin has a negative sign.
Cool-Power®
Rev 1.2
vicorpower.com
Page 16 of 22
02/2015
800 927.9474
48 Volt PI31xx
PI3110-01-HVIZ Electrical Characteristics
Conversion Efficiency at 100°C
11 mm Heatsink Thermal Derating
90
3.3
Efficiency
80
41 V 100°C
50 V 100°C
57 V 100°C
75
70
65
Load Currrent (Amps)
2.97
85
2.64
41 V 0 LFM
50 V 0 LFM
57 V 0 LFM
41 V 200 LFM
50 V 200 LFM
57 V 200 LFM
41 V 600 LFM
50 V 600 LFM
57 V 600 LFM
2.31
1.98
1.65
1.32
0.99
0.66
0.33
60
0
0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115
Load Curent (Amps)
Temp °C
Figure 24 — Load Currrent vs Ambient Temperature (11mm Heat Sink)
Figure 21 — Conversion Efficiency
No Heatsink Thermal Derating
3.3
Load Currrent (Amps)
2.97
2.64
41 V 0 LFM
50 V 0 LFM
57 V 0 LFM
41 V 200 LFM
50 V 200 LFM
57 V 200 LFM
41 V 600 LFM
50 V 600 LFM
57 V 600 LFM
2.31
1.98
1.65
1.32
0.99
0.66
0.33
0
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Temp °C
Figure 22 — Load Currrent vs Temperature (without Heat Sink)
Figure 25 — Start Up CREF = 0
(VIN = 41 V, IOUT = 3.3 A, CR, COUT = 6 X 2.2 µF X7R Ceramic)
6.3 mm Heatsink Thermal Derating
3.3
Load Currrent (Amps)
2.97
2.64
41 V 0 LFM
50 V 0 LFM
57 V 0 LFM
41 V 200 LFM
50 V 200 LFM
57 V 200 LFM
41 V 600 LFM
50 V 600 LFM
57 V 600 LFM
2.31
1.98
1.65
1.32
0.99
0.66
0.33
0
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110
Temp °C
Figure 23 — Load Currrent vs Temperature (6.3mm Heat Sink)
Figure 26 — Start Up CREF = 0
(VIN = 52 V, IOUT = 3.3 A, CR, COUT = 6 X 2.2 µF X7R Ceramic)
Cool-Power®
Rev 1.2
vicorpower.com
Page 17 of 22
02/2015
800 927.9474
48 Volt PI31xx
PI3110-01-HVIZ Electrical Characteristics
Figure 27 — Start Up CREF = 0
(VIN = 52 V, IOUT = 3.3 A, CR, COUT = 6 X 2.2 µF X7R Ceramic)
Figure 30 — Thermal Image
(VIN = 52 V, IOUT = 3.3 A, CR, 0 LFM Evaluation PCB)
Figure 28— Transient Response (VIN = 52 V, IOUT = 2.475 - 3.3 A,
0.1 A/µs, COUT = 6 X 2.2 µF X7R Ceramic)
Figure 29 — Output Ripple
(VIN = 52 V, IOUT = 3.3 A, CR, COUT = 6 X 2.2 µF X7R Ceramic)
Cool-Power®
Rev 1.2
vicorpower.com
Page 18 of 22
02/2015
800 927.9474
48 Volt PI31xx
Functional Description
external soft-start circuitry. All faults will pull ENABLE low including
over temperature. If increased turn on delay is desired, the ENABLE
pin can be bypassed with a small capacitor up to a
maximum of 1500 pF.
Figure 31 — Picor 48 Volt PI31xx Shown With System Fuse, Filter,
Decoupling And Extended Soft Start
Input Power Pins IN(+) and IN(-)
The input power pins on the 48 Volt PI31xx are connected to the
input power source which can range from 36 V to 75 V DC.
(PI3110-01-HVIZ 41 V TO 57 V) Under surge conditions, the
48 Volt PI31xx can withstand up to 100 V DC. (PI3110-01-HVIZ 80 V)
for 100 ms without incurring damage. The user should take care to
avoid driving the input rails above the specified ratings. Since the 48
Volt PI31xx is designed with high reliability in mind, the input pins
are continuously monitored. If the applied voltage exceeds the input
over-voltage trip point the conversion process shall be terminated
immediately. The converter initiates soft-start automatically within
80ms after the input voltage is reduced back to the appropriate
value. The input pins do not have reverse polarity protection. If the
48 Volt PI31xx is operated in an environment where reverse polarity
is a concern, the user should consider using a polarity protection
device such as a suitably rated diode. To avoid the high losses of
using a diode, the user should consider the much higher efficiency
Picor family of intelligent Cool-ORing® solutions that can be used in
reverse polarity applications. Information is available at
picorpower.com.
The 48 Volt PI31xx will draw nearly zero current until the input
voltage reaches the internal start up threshold. If the ENABLE pin is
not pulled low by external circuitry, the output voltage will begin
rising to its final output value about 80ms after the input UV lockout
releases. This will occur automatically even if the ENABLE pin is
floating.
To help keep the source impedance low, the input to the
48 Volt PI31xx should be bypassed with (2) 1.0 uF 100 V ceramic
capacitors of X7R dielectric in parallel with a low Q 47 uF 100 V
electrolytic capacitor. To reduce EMI and reflected ripple current, a
series inductor of 0.2 to 0.47 uH can be added. The input traces to the
module should be low impedance configured in such a manner as to
keep stray inductance minimized.
ENABLE
The ENABLE pin serves as a multi-function pin for the
48 Volt PI31xx. During normal operation, it outputs the on-board 4.9
V regulator which can be used for trimming the module up. The
ENABLE pin can also be used as a remote enable pin either from the
secondary via an optocoupler and some external isolated bias supply
or from the primary side through a small signal transistor, FET or
any device that sinks 3.3 mA, minimum. If the ENABLE pin is lower
than 2.35 V typical, the converter will be held off or shut down if
already operating. A third feature is offered in that during a fault
condition such as output OVP, input UV or OV, or output current
limit, the ENABLE pin is pulled low internally. This can be used as a
signal to the user that a fault has occurred. Whenever the ENABLE
pin is pulled low, the TRIM/SS pin follows, resetting the internal and
TRIM/SS Pin
The TRIM/SS pin serves as another multi-purpose pin. First, it is used
as the reference for the internal error amplifier. Connecting a resistor
from TRIM/SS to SGND allows the reference to be margined down by
as much as -20%. Connecting a resistor from TRIM/SS to ENABLE
will allow the reference and output voltage to be margined up by
10%. If the user wishes a longer start up time, a small ceramic
capacitor can be added to TRIM/SS to increase it. It is critical to
connect any device between TRIM/SS and SGND and not -IN,
otherwise high frequency noise will be introduced to the reference
and possibly cause erratic operation. Referring to the figures below,
the appropriate trim up or trim down resistor can be calculated using
the equivalent circuit diagram and the equations. When trimming
up the trim down resistor is not populated and when trimming
down, the trim up resistor is not populated. The soft start time is
adjustable within the limits defined by the data tables and has a
default value of 500us to reach steady state. The internal soft start
capacitor value is 10nF.
ENABLE
PI31xx
Rhigh
10k
RSS
VERO
TRIM/SS
•
Vref
Rlow
•
SGND
•
Rlow = (–Vdesired ) •
Rhigh = (–RSS) •
RINT
(–Voutnom) + Vdesired
(–Voutnom) • VERO + Vdesired • Vref
Vref [(–Voutnom) + Vdesired ]
Figure 32 — Trim Equations And Equivalent Circuit
CREF =
Cool-Power®
Rev 1.2
vicorpower.com
Page 19 of 22
02/2015
800 927.9474
Tssdesired – 230 • 10−6
23000
48 Volt PI31xx
TM
The TM pin serves as an output indicator of the internal package
temperature which is within +/- 5°K of the hottest junction
temperature. Because of this, it is a good indicator of a thermal
overload condition. The output is a scaled, buffered analog voltage
which indicates the internal temperature in degrees Kelvin. Upon a
thermal overload, the TM pin is pulled low, indicating a thermal fault
has occurred. Upon restart of the converter, the TM pin reverts back
to a buffered monitor. The thermal shutdown function of the
48 Volt PI31xx is a fault feature which interrupts power processing if
a certain maximum temperature is exceeded. TM can be monitored
by an external microcontroller or circuit configured as an adaptive
fan speed controller so that air flow in the system can be
conveniently regulated.
SGND
The 48 Volt PI31xx SGND pin is the “quiet” control circuitry return. It
is basically an extension of the internal signal ground. To avoid
contamination and potential ground loops, this ground should NOT
be connected to -IN since it is already star connected inside the
package. Connect signal logic to SGND.
Output Power Pins +OUT And -OUT
The output power terminals OUT(+) and OUT(-) deliver the
maximum output current from the 48 Volt PI31xx through the
J-lead output pins. This configuration allows for a low impedance
output and should be connected to multi-layer PCB parallel planes
for best performance. Due to the high switching frequency, output
ripple and noise can be easily attenuated by adding just a few high
quality X7R ceramic capacitors while retaining adequate transient
response for most applications. The 48 Volt PI31xx does not require
any feedback loop compensation nor does it require any optoisolation. All isolation is contained within the package. This greatly
simplifies the use of the converter and eliminates all outside
influences of noise on the quality of the output voltage regulation
and feedback loop. It is important for the user to minimize resistive
connections from the load to the converter output and to keep stray
inductance to a minimum for best regulation and transient response.
The very small size footprint and height of the 48 Volt PI31xx allows
the converter to be placed in the optimum location to allow for tight
connections to the point of load. For those applications absolutely
requiring very tight regulation, contact Picor Engineering at
picorpower.com for a remote sense application circuit which can
be used.
Cool-Power®
Rev 1.2
vicorpower.com
Page 20 of 22
02/2015
800 927.9474
48 Volt PI31xx
Package Outline & Recommended PCB Land Pattern
Figure 33 — Package Outline & Recommended PCB Land Pattern
Cool-Power®
Rev 1.2
vicorpower.com
Page 21 of 22
02/2015
800 927.9474
48 Volt PI31xx
Vicor’s comprehensive line of power solutions includes high density AC-DC and DC-DC modules and
accessory components, fully configurable AC-DC and DC-DC power supplies, and complete custom
power systems.
Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is assumed by Vicor for its use. Vicor makes no
representations or warranties with respect to the accuracy or completeness of the contents of this publication. Vicor reserves the right to make
changes to any products, specifications, and product descriptions at any time without notice. Information published by Vicor has been checked and
is believed to be accurate at the time it was printed; however, Vicor assumes no responsibility for inaccuracies. Testing and other quality controls are
used to the extent Vicor deems necessary to support Vicor’s product warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
Specifications are subject to change without notice.
Vicor’s Standard Terms and Conditions
All sales are subject to Vicor’s Standard Terms and Conditions of Sale, which are available on Vicor’s webpage or upon request.
Product Warranty
In Vicor’s standard terms and conditions of sale, Vicor warrants that its products are free from non-conformity to its Standard Specifications (the
“Express Limited Warranty”). This warranty is extended only to the original Buyer for the period expiring two (2) years after the date of shipment
and is not transferable.
UNLESS OTHERWISE EXPRESSLY STATED IN A WRITTEN SALES AGREEMENT SIGNED BY A DULY AUTHORIZED VICOR SIGNATORY, VICOR DISCLAIMS
ALL REPRESENTATIONS, LIABILITIES, AND WARRANTIES OF ANY KIND (WHETHER ARISING BY IMPLICATION OR BY OPERATION OF LAW) WITH
RESPECT TO THE PRODUCTS, INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR REPRESENTATIONS AS TO MERCHANTABILITY, FITNESS FOR
PARTICULAR PURPOSE, INFRINGEMENT OF ANY PATENT, COPYRIGHT, OR OTHER INTELLECTUAL PROPERTY RIGHT, OR ANY OTHER MATTER.
This warranty does not extend to products subjected to misuse, accident, or improper application, maintenance, or storage. Vicor shall not be liable
for collateral or consequential damage. Vicor disclaims any and all liability arising out of the application or use of any product or circuit and assumes
no liability for applications assistance or buyer product design. Buyers are responsible for their products and applications using Vicor products and
components. Prior to using or distributing any products that include Vicor components, buyers should provide adequate design, testing and
operating safeguards.
Vicor will repair or replace defective products in accordance with its own best judgment. For service under this warranty, the buyer must contact
Vicor to obtain a Return Material Authorization (RMA) number and shipping instructions. Products returned without prior authorization will be
returned to the buyer. The buyer will pay all charges incurred in returning the product to the factory. Vicor will pay all reshipment charges if the
product was defective within the terms of this warranty.
Life Support Policy
VICOR’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS
PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF VICOR CORPORATION. As used herein, life support
devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform
when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the
user. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or system or to affect its safety or effectiveness. Per Vicor Terms and Conditions of Sale, the user of Vicor products
and components in life support applications assumes all risks of such use and indemnifies Vicor against all liability and damages.
Intellectual Property Notice
Vicor and its subsidiaries own Intellectual Property (including issued U.S. and Foreign Patents and pending patent applications) relating to the
products described in this data sheet. No license, whether express, implied, or arising by estoppel or otherwise, to any intellectual property rights is
granted by this document. Interested parties should contact Vicor's Intellectual Property Department.
The products described on this data sheet are protected by the following U.S. Patents Numbers:
6,788,033; 7,154,250; 7,561,446; 7,361,844; D496,906; D506,438; 6,940,013; 7,038,917; 6,969,909; 7,166,898; 6,421,262; 7,368,957;
RE 40,072
Vicor Corporation
25 Frontage Road
Andover, MA 01810 USA
Picor Corporation
51 Industrial Drive
North Smithfield, RI 02896 USA
email
Customer Service: [email protected]
Technical Support: [email protected]
Cool-Power®
Rev 1.2
vicorpower.com
Page 22 of 22
02/2015
800 927.9474