Technical Specification
Brick
Half
48Vin 1.5Vout 40A
40 Amp, No Heatsink, Isolated DC/DC Converter
The PQ48015HGA40 PowerQor™ Giga converter
is a next-generation, board-mountable, isolated
fixed switching frequency dc/dc converter that uses
synchronous rectification to achieve extremely high
conversion efficiency. The power dissipated by the
converter is so low that a heatsink is not required,
which saves cost, weight, height, and application effort.
The Giga series converters offer enhanced useable
output current in a standard “half-brick” module.
The Giga units also feature active current sharing
for N+1 and parallel applications.
PQ48015HGA40 Module
Operational Features
• Ultra-high efficiency, 84% at full rated load current
• Delivers up to 40 amps of output current with mini-
mal derating - no heatsink required
• Wide input voltage range: 35V – 75V meets or
exceeds all 48V bus standards
• Fixed frequency switching provides predictable EMI
performance
Protection Features
• Input under-voltage lockout and over-voltage
shutdown protects against abnormal input voltages
• Output current limit and short circuit protection
• Output over-voltage protection
• Thermal shutdown
Mechanical Features
• Industry standard pin-out configuration
• Industry standard size: 2.3” x 2.4”
• Total height only 0.40”, permits better airflow and
smaller card pitch
• Total weight: 2.1 oz. (59 grams)
Control Features
• On/Off control referenced to input side (positive
and negative logic options are available)
• Remote sense for the output voltage compensates
for output distribution drops
• Output voltage trim permits custom voltages and
voltage margining
(Full-Feature modules)
Active current share for N+1 and parallel applications
External Clock Synchronization pin for better EMI
characteristics
Startup Synchronization pin for more consistent start-
up sequence
ORing FET drive supply for efficient ORing protection
9/10/01
Page 1
Safety Features
• 2000V, 10 MΩ input-to-output isolation
• UL 1950 recognized (US & Canada), basic insula-
tion rating
• TUV certified to EN60950
• Meets 72/23/EEC and 93/68/EEC directives
• Meets 94V-0 flammability requirements
Product # PQ48015HGA40
Phone 1-888-567-9596
Optional Features
•
•
•
•
Doc.# 005-2HG451C_B
Technical Specification
Brick
0.19
(4.8)
(48.3)
Half
48Vin 1.5Vout 40A
1.90
(58.4)
2.30
(12.7)
0.400
0.50
0.300
(7.62)
0.400
(10.16)
(10.16)
(25.40)
(35.56)
(61.0)
1.000
0.200
(5.08)
(17.78)
0.700
1.400
Top View
0.200
(5.08)
(25.40)
1.000
2.40
(35.56)
1.400
(10.2)
0.40
Side View
(3.68)
See Note 4
0.145
Shown Actual Size
1) Pins 1-4, 6-8, A-C are 0.040” (1.02mm) diameter. with
0.080” (2.03mm) diameter standoff shoulders.
2) Pins 5 and 9 are 0.080” (2.03 mm) diameter with
0.125” (3.18mm) diameter standoff shoulders.
3) Pins 3, A, B & C only included in Full-Feature models.
4) Other pin extension lengths available
5) Undimensioned components are shown for visual reference only.
6) Weight: 2.1 oz. (59g) typical
7) All dimensions in inches (mm)
Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 in. (x.xx +/-0.25mm)
8) Workmanship: Meets or exceeds IPC-A-610B Class II
Pin No. Name
1
2
Vin(+)
ON/OFF
Function
Positive input voltage (35V - 75V)
TTL input to turn converter
on and off, referenced to
Vin(-), with internal pull up.
ABSOLUTE MAXIMUM RATINGS
Input Voltage: 80V,
(non-operating: 100V continuous)
Input Surge Withstand: 100V, < 10µs
Input/Output Isolation Voltage: 2000V
Storage Temperature: -55°C to +125°C
Operating Temperature: -40°C to +115°C
Voltage at ON/OFF input pin: +18V/-2V
3
4
5
6
7
8
9
A
B
C
I share
Vin(-)
Vout(-)
SENSE(-)
TRIM
SENSE(+)
Vout(+)
Clock Sync
Start Sync
OR Drive
Single wire parallel signal
Negative input voltage
Negative output voltage
Return remote sense
Output voltage trim
Positive remote sense
Positive output voltage
Clock synchronization
Startup synchronization
External OR-FET drive
Pins in Italics Shaded text are Optional
OPTIONS
• Logic sense - Negative (N); converter is on when the
ON/OFF signal is low. Positive (P); converter is on
when the ON/OFF signal is high. Logic input is TTL
compatible with an internal pull up. Use N or P as
13th letter in part number to indicate logic.
• Pin Length - a variety of pin lengths are available for
all modules (see page 11). The14th letter in the part
number indicates pin length.
• Feature Set - Half-bricks are available in Standard (S)
or Full (F) feature options. Optional full features are
explained in detail on page 8. Use S or F as 15th let-
ter in part number to indicate feature set.
Product # PQ48015HGA40
Phone 1-888-567-9596
SAFETY
• UL 1950 - All modules are UL 1950 recognized (US &
Canada) with basic insulation rating.
• EN60950 - All modules are TUV certified to EN60950
requirements.
• 72/23/EEC - All modules meet 72/23/EEC directives.
• 93/68/EEC - All modules meet 93/68/EEC directives.
• 94V-0 - All modules meet 94V-0 flammability require-
ments for board and plastic components.
• NEBS - All modules meet NEBS compatibility.
• An external input fuse must always be used to meet
these safety requirements.
Doc.# 005-2HG451C_B
9/10/01
Page 2
Technical Specification
T
A
=25°C, airflow rate=300 LFM, V
in
=48Vdc unless otherwise noted; full operating temperature range is -40°C to +115°C ambient
temperature with appropriate power derating. Specifications subject to change without notice.
48Vin 1.5Vout 40A
Brick
PQ48015HGA40 ELECTRICAL CHARACTERISTICS
PARAMETER
INPUT CHARACTERISTICS
Half
NOTES and CONDITIONS
Min.
35
31.5
29.5
2.2
76.7
PQ48015HGA40
Typ.
48
33.3
31.0
2.3
78.3
75
2
0.03
3
1.48
1.50
+0.05 (1)
+0.1 (2)
+15
50
10
46
0.9
+2
>50,000
80
50
50
300
180
20
200
0
84
87
125
125
125
2000
10
230
-2
2.7
2.7
-2
Vin/6
42
125
120
30
215
Max.
75
34.4
32.4
2.4
79.5
2.1
95
5
Units
V
V
V
V
V
A
mA
mA
A
2
s
mA
V
% (mV)
% (mV)
mV
V
mV
mV
A
A
V
%
µF
dB
mV
mV
µs
ms
ms
%
%
%
°C
°C
°C
V
M
Ω
pF
Operating Input Voltage Range
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Hysteresis Voltage
Input Over-Voltage Shutdown
Maximum Input Current
No-Load Input Current
Off Converter Input Current
Inrush Current Transient Rating
Input Reflected-Ripple Current
100% Load, 35Vin
RMS thru 10µH inductor; Fig. 13 & 15
OUTPUT CHARACTERISTICS
Output Voltage Set Point
Output Voltage Regulation
Over Line
Over Load
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak-to-Peak
RMS
Operating Output Current Range
Output DC Current-Limit Inception
Output DC Current-Limit Shutdown Voltage
Current Share Accuracy (2 units paralleled)
Maximum Output Capacitance
Input Voltage Ripple Rejection
Output Voltage during Load Current Transient
Positive Step Change in Output Current
Negative Step Change in Output Current
Settling Time to within 1% Vout nom.
Turn-On Transient
Turn-On Time
Start-Up Inhibit Time
Output Voltage Overshoot
100% Load
50% Load
Semiconductor Junction Temperature
Board Temperature
Transformer Temperature
Isolation Voltage
Isolation Resistance
Isolation Capacitance
1.52
+0.1 (2)
+0.2 (3)
+30
1.55
100
20
40
50
+5
over sample line, load and temperature
20MHz bandwidth; Fig. 13 & 16
Full Load, 1µF ceramic, 15µF tantalum
Full Load, 1µF ceramic, 15µF tantalum
Output Voltage 10% Low; Fig. 17
% of rated output current
1.5Vout at 40A Resistive Load
120 Hz; Fig. 20
15µF load cap, 0.1A/µs; Figure 11
50% Io to 75% Io
75% Io to 50% Io
Full load, Vout=90%.;Figs. 9 & 10
-40°C to +125°C; Figure A
10mF load capacitance, Iout = 0A
Figure 1
Package rated to 150°C
Board rated to 165°C
10mF load capacitance, Iout = 0A
1.45
0
42
DYNAMIC CHARACTERISTICS
EFFICIENCY
TEMPERATURE LIMITS FOR POWER DERATING CURVES
ISOLATION CHARACTERISTICS
3300
260
290
0.8
18
18
0.8
15
+19
+19
130
FEATURE CHARACTERISTICS
Switching Frequency
ON/OFF Control (Option P)
Off-State Voltage
On-State Voltage
ON/OFF Control (Option N)
Off-State Voltage
On-State Voltage
ON/OFF Control (Either Option)
Pull-Up Voltage
Pull-Up Resistance
Output Voltage Trim Range
Output Voltage Remote Sense Range
Output Over-Voltage Protection
Over-Temperature Shutdown
kHz
V
V
V
V
V
k
Ω
%
%
%
°C
Across Pins 9 & 5
Across Pins 9 & 5
Over full temp range; % of nominal Vout
Average PCB Temperature
-10
120
Patents:
SynQor is protected under various patents, including but not limited to U.S. Patent # 5,999,417.
Product # PQ48015HGA40
Phone 1-888-567-9596
Doc.# 005-2HG451C_B
9/10/01
Page 3
Performance Curves
Brick
100
95
90
Half
90
89
88
48Vin 1.5Vout 40A
Efficiency (%)
Efficiency (%)
85
80
75
70
65
60
0
4
8
12
16
20
24
28
32
36
40
36 Vin
48 Vin
75 Vin
87
86
85
84
83
82
0
100
200
300
400
Air Flow (LFM)
25 C
40 C
55 C
500
Load Current (A)
Figure 1:
Efficiency at nominal output voltage vs. load current for min-
imum, nominal, and maximum input voltage at 25
°
C.
16
14
Figure 2:
Efficiency at nominal output voltage and 60% rated power vs.
airflow rate for ambient air temperatures of 25
°
C, 40
°
C, and 55
°
C
(nominal input voltage).
8.0
7.0
Power Dissipation (W)
Power Dissipation (W)
12
10
8
6
4
2
0
0
4
8
12
16
20
24
28
32
36
40
36 Vin
48 Vin
75 Vin
6.0
5.0
4.0
3.0
2.0
1.0
0.0
0
100
200
300
400
Air Flow (LFM)
25 C
40 C
55 C
500
Load Current (A)
Figure 3:
Power dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at 25
°
C.
40
35
Figure 4:
Power dissipation at nominal output voltage and 60% rated
power vs. airflow rate for ambient air temperatures of 25
°
C, 40
°
C, and
55
°
C (nominal input voltage).
25
20
15
10
5
0
0
25
40
55
o
400 LFM (2.0 m/s)
300 LFM (1.5 m/s)
200 LFM (1.0 m/s)
100 LFM (0.5 m/s)
0 LFM (0 m/s)
70
85
Vin = 48V
Ambient Air Temperature ( C)
Figure 5:
Maximum output power derating curves vs. ambient air tem-
perature for airflow rates of 0 LFM through 400 LFM with air flowing
from output to input (nominal input voltage).
Product # PQ48015HGA40
Phone 1-888-567-9596
Figure 6:
Thermal plot of converter at 40 amp load current with 55
°
C
air flowing at the rate of 200 LFM. Air is flowing across the converter
from output to input (nominal input voltage).
Doc.# 005-2HG451C_B
9/10/01
Page 4
Semiconductor junction temperature is
within 1°C of surface temperature
30
I
out
(A)
Performance Curves
Brick
Half
48Vin 1.5Vout 40A
To be provided in next revision
To be provided in next revision
Figure 7:
Maximum output power derating curves vs. ambient air tem-
perature for airflow rates of 0 LFM through 400 LFM with air flowing
from input to output (nominal input voltage).
Figure 8:
Thermal plot of converter at 40 amp load current with 55
°
C
air flowing at the rate of 200 LFM. Air is flowing across the converter
from input to output (nominal input voltage).
Figure 9:
Turn-on transient at full load (resistive load) (10 ms/div).
Top Trace: Vout (0.5V/div)
Bottom Trace: ON/OFF input (5V/div)
Figure 10:
Turn-on transient at zero load (10 ms/div).
Top Trace: Vout (0.5V/div)
Bottom Trace: ON/OFF input (5V/div)
Figure 11
:
Output voltage response to step-change in load current (50%-75%-50%
of Iout(max); dI/dt = 0.1A/µs). Load cap: 15µF, 450 m
Ω
ESR tantalum capacitor and
1µF ceramic capacitor. Top trace: Vout (100mV/div), Bottom trace: Iout (10A/div).
Product # PQ48015HGA40
Phone 1-888-567-9596
Figure 12
:
Output voltage response to step-change in load current (50%-75%-50%
of Iout(max): dI/dt = 5A/µs). Load cap: 480µF, 15 m
Ω
ESR tantalum capacitor and
1µF ceramic capacitor. Top trace: Vout (200mV/div), Bottom trace: Iout (10A/div).
Doc.# 005-2HG451C_B
9/10/01
Page 5
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