HEQB15A-48V-3.3V [BEL]
DC-DC Regulated Power Supply Module, 1 Output, Hybrid;
| 型号： | HEQB15A-48V-3.3V |
| 厂家： | 
BEL FUSE INC. |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, Hybrid |
| 文件： | 总10页 (文件大小：393K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Release 2.D P/N 7Q05E0WB000
HEQB 15A-48V-3.3V
48Vin 15Aout 3.3Vout High Efficiency, isolated
Quarter Brick DC-DC Converter
Features
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Very high efficiency: 90%
Wide input voltage range (36 to 75Vdc)
Total weight: 34g. (1.2oz.)
Low profile, industry standard footprint and pin out:
2.3" x 1.45" x 0.4" (58.4mm x 36.8mm x 10.2mm)
Adjustable output voltage (+/- 10%)
Input to Output Isolation at 2000Vdc,10MW
Fixed Frequency (Input-Output ripple 400 KHz)
Undervoltage Lockout (UVLO)
Overcurrent protection
Overtemperature protection
Auto-restart after overcurrent shutdown
Remote sense
Remote ON/OFF
·
·
·
·
·
·
·
·
·
·
·
·
Operating temperature -40/+100°C
ISO 9001 Certified manufacturing processes
CSA/US, CSA, Kema, Certified
Product Highlights
·
The HEQB DC-DC Converter family is
Magnetek’s solution for next generation,
cutting-edge board applications.
The synchronous rectification topology
uses MOSFET instead of Schottky diodes
providing extreme reduction in heat
generation, boosting efficiency, eliminating
the need for a heat sink and increasing
reliability.
·
·
·
The low profile (0.4”), open frame
construction allows smaller card pitch and
improves ventilation.
The fixed switching frequency provides
predictable EMI characteristics.
P/N 7Q05E0WB000
HEQB 15A 48V 3.3V DS rev 2-d 7Q05 7Q05 – page 1
HEQB15A – 48V – 3.3V High Efficiency DC-DC Converter
Mechanical Drawings
Mechanical Drawings
Mechanical Drawings
- All dimensions are in inches (mm)
- Tolerances: x.xx in. +/-0.2 in. (0.5mm)
2.3
(58.42)
0.14
(3.68)
2.01
(51)
Ø=0.06 (2 pcs)
(Ø=1.5) (2 pcs)
Ø=0.04 (6 pcs)
(Ø=1) (6 pcs)
Bottom View
PINOUT Description
Pin
Name
Function
1
2
Vin (-)
ON/OFF
Return terminal for the -48V input bus
Logic signal referenced to Vin (-), TTL compatible
(internal pull up ) to turn converter on and off
Positive terminal for the +48V input bus
Positive terminal for output voltage
Positive remote sense
Output voltage TRIM
Negative remote sense
Return terminal for output voltage
3
4
5
6
7
8
Vin (+)
Vout (+)
Sense (+)
TRIM
Sense (-)
Vout (-)
P/N 7Q05E0WB000
HEQB 15A 48V 3.3V DS rev 2-d 7Q05– page 2
HEQB15A – 48V – 3.3V High Efficiency DC-DC Converter
Specifications
(Typical value standard at nominal input line, full load, airflow 300 LFM, 25°C ambient temperature unless otherwise specified)
Input Characteristics
Notes & Conditions
Min
Typ
Max
Units
Operating Input Voltage Range
Input Surge Voltage
Note 1
36
48
75
100
V
V
T< 10ms
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Hysteresis Voltage
34.3
33.8
0.5
34.7
34.1
0.5
35.8
34.8
0.5
V
V
V
A
Maximum Input Current (IINmax
)
VIN=36V; Full Load
1.53
No-load Input Current
51
4
0.01
3
60
6
mA
mA
A2s
mA
Off Converter Input Current
Inrush Current Transient Rating
Input Reflected-Ripple Current
RMS; See figures 1, 2
NOTE 1:
NOTE 1:
NOTE 1: Absolute max. input voltage 80V
Output Characteristics
Notes & Conditions
50 % Load
Min
3.28
Typ
3.30
Max
3.32
Units
V
Output Voltage Set Point
Output Voltage Regulation
Over Load
Vnom = 48V
Inom = 15A
± 5
± 2
± 20
± 8
± 5
± 40
3.35
mV
mV
mV
V
Over Line
Over Temperature
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak to Peak
3.25
20 MHz bandwidth
Full load,
see figures 1, 4
48
12.26
-
90
20
15
mV
mV
A
RMS
Operating Output Current Range
0
Output Voltage
10% low
Output DC Current Limit Inception
16
17
3
19
A
V
Output DC Current Limit Shutdown
Voltage
See fig.5
2.95
0
3.05
Admissible Output capacitance
Full load, resistive
20000
mF
Dynamic
Characteristics
Max
Notes & Conditions
Min
Typ
Units
470mF load cap,
1A/ms; see figure 9
Output Voltage Current Transient
Positive Step Change
Negative Step Change
Settling Time to 1%
50%Io to 75% I
75% Io to 50% Io
120
120
300
mV
mV
ms
o
Turn-On Transient
See figures 6 and 7
Full load;
Turn-On Time
10
15
ms
Efficiency
Notes & Conditions
VIN = 48V
Min
Typ
90
89.3
Max
Units
%
%
@ 15A
@ 10A
@ 8 A
VIN = 48V
%
VIN = 48V
87.5
Isolation Characteristics
Notes & Conditions
Basic Isolation
Min
10
Typ
2000
2200
Max
Units
VDC
Isolation Voltage - Iinput to output
Isolation Capacitance
Isolation Resistance
Basic Isolation
pF
MW
P/N 7Q05E0WB000
HEQB 15A 48V 3.3V DS rev 2-d 7Q05– page 3
HEQB15A – 48V – 3.3V High Efficiency DC-DC Converter
Feature Characteristics
Min.
Typ.
Max
Units
Double Frequency for
Input-Output Ripple
Switching frequency
190
200
210
kHz
ON/OFF Control
Off-State Voltage
On-State Voltage
2.7
0
15
0.5
+10
V
V
Output Voltage Trim Range
Output Voltage Remote Sense
Range
Output Over-Voltage Protection
Overcurrent Protection Threshold
-10
%
+10
123
%
%
115
118
125
16-19 A
Average PCB
temperature
Over-Temperature shutdown
°C
General
characteristics
Max
Notes & Conditions
Min
Typ
Units
Operating Range Temperature
Storage Temperature
Relative Humidity
Maximum Rating
Maximum Rating
Non condensing
Bellcore Issue 4
RDF93 HRD Issue 5
-40
-50
5
+100
+120
95
°C
°C
%
Calculated MTBF
Approvals
3,138,534 hours
EN60955; UL1950; CSA22.2; CE
Characteristic Curves
Figure 3
Figure 2
Figure 4
DC/DC
Converter
Vout
-
Is
-
Ic
Cerami c
cap
ESR
FIGURE 1: Set-up diagram showing measurement
Points for Input Terminal Ripple
Current, Input Reflected Ripple Current
and Output Voltage Ripple
P/N 7Q05E0WB000
HEQB 15A 48V 3.3V DS rev 2-d 7Q05– page 4
HEQB15A – 48V – 3.3V High Efficiency DC-DC Converter
FIGURE 2: Input Reflected Ripple Current, through a
10mH source inductor at nominal input voltage
and rated load current. (Is in figure 1)
FIGURE 3: Input Terminal Ripple Current.
Full rated output current and nominal input
voltage with 10mH source impedance and
47mF electrolytic capacitor (Ic in figure 1)
FIGURE 4: Output voltage ripple at nominal input
voltage and rated load current.
FIGURE 5: Load current as a function of time when the
converter attempts to turn into a 10mW
short circuit
Load capacitance: 1mF ceramic capacitor
and 10mF tantalum capacitor.
P/N 7Q05E0WB000
HEQB 15A 48V 3.3V DS rev 2-d 7Q05– page 5
HEQB15A – 48V – 3.3V High Efficiency DC-DC Converter
GURE 6: Turn-on transient at full rated
load current
FIGURE 7: Turn-on transient at zero
load current
FIGURE 8: Output voltage response to step-change
FIGURE 9: Output voltage response to step-change
in load current from 50% IO to 75% IO.
in load current from 50% IO to 75% IO.
Load cap: 10mF, 100 mW ESR tantalum
Load cap: 470mF, 30 mW ESR tantalum
capacitor and 1mF ceramic capacitor
di / dt = 0.1A / ms
capacitor and 1mF ceramic capacitor
di / dt = 1A / ms
P/N 7Q05E0WB000
HEQB 15A 48V 3.3V DS rev 2-d 7Q05– page 6
HEQB15A – 48V – 3.3V High Efficiency DC-DC Converter
100
95
90
85
80
Vin=36V
75
Vin=48V
Vin=75V
70
65
60
0
3
6
9
12
15
18
Output current [A]
FIGURE 10: Efficiency vs. load current for different input voltages at 25°C
7
6
5
4
3
2
1
0
Vin=36
Vin=48
Vin=75
0
2
4
6
8
10
12
14
16
output current [A]
FIGURE 11: Power dissipation vs. load current for different input voltages at 25°C
P/N 7Q05E0WB000
HEQB 15A 48V 3.3V DS rev 2-d 7Q05– page 7
HEQB15A – 48V – 3.3V High Efficiency DC-DC Converter
To be provided in the next issue
To be provided in the next issue
FIGURE 13: Thermal plot of converter at 14 amp load
current with 55°C air flowing at the rate of 0 LFM.
Air is flowing across the converter sideways from pin 1 to
pin 3 at nominal input voltage.
FIGURE 12: Maximum output current derating curves vs.
ambient air temperature for airflow rates of 0 LFM through
400 LFM with air flowing across the converter from pin 1 to
pin 3 at nominal input voltage.
15
13
11
9
To be provided in the next issue
0LFM
100LFM
200LFM
300LFM
400LFM
7
5
3
1
-1
0
25
40
55
70
85
Temperature (°C)
FIGURE 14: Maximum output current derating curves vs.
ambient air temperature for airflow rates of 0 LFM to 400
LFM with air flowing lengthwise from output to input at
nominal input voltage.
FIGURE 15: Thermal plot of converter at 25 amp load
current with 25°C air flowing at the rate of 300 LFM.
Air is flowing across the converter in the long direction
from output to input at nominal input voltage.
P/N 7Q05E0WB000
HEQB 15A 48V 3.3V DS rev 2-d 7Q05– page 8
HEQB15A – 48V – 3.3V High Efficiency DC-DC Converter
Features and Pins description
Features and Pins description
Features and Pins description
SAFETY
The converter is certified according to EN60950 (Kema), UL 1950 and CSA 22.2.
The converter has basic insulation rating. The converter meets NEBS compatibility.
An external input fuse must always be used.
ON-OFF CONTROL
The default logic is negative: the on/off (pin #2) voltage is referenced to the -Vin (pin #4) and must be lower than 0.8V
to turn the module on, and higher than 2.7V to shut the module off.
Consult the factory for availability of positive logic modules.
ON /OFF
ON /OFF
ON /OFF
Vin (-)
Vin (-)
Vin (-)
Vin (-)
Negative logic
(permanentlyEnabled)
Open Collector Enable Circuit
Direct Logic Drive
Remote Enable Circuit
TRIMMING
The output voltage can be trimmed by means of an external resistor connected between the Trim and the
+S or -S pins. The selection of the resistor follows the industry standard.
A resistor connected between Trim and– S pins will decrease the output voltage. For a decrease of D% of the nominal
output voltage, the value of the resistor should be:
ö
çæ 3.3 - V target
511
æ
ö
÷
÷
R
=
- 10.22kW
where
D =
´ 100%
ç
trim-down
ç
÷
D%
è
ø
3.3
è
ø
P/N 7Q05E0WB000
HEQB 15A 48V 3.3V DS rev 2-d 7Q05– page 9
HEQB15A – 48V – 3.3V High Efficiency DC-DC Converter
A resistor connected between Trim and + S pins will increase the output voltage. For a desired increase of D% of the
nominal output voltage, the value of the resistor should be:
5.11* 3.3
100 + D%
æ
ö
511
R
trim-up
= ç
-
- 10.22÷KW
ç
÷
1.225D%
D%
è
ø
SENSE (+ or -)
The + or – S pins should be connected to the load to have a tight regulation.
The maximum voltage drop that can be compensated for is 10% of Vout.
Note that the overvoltage protection senses the output voltage directly at + Vout and – Vout pins.
Care must be taken to avoid that the voltage at the output terminals + Vout and –Vout pins exceeds 3.63V.
THERMAL CONSIDERATIONS
The module is provided with a thermal protection which prevents the hot spot on PCB to exceed
120°C (248 °F).
Depending on the air flow rate and the ambient temperature, this limit is reached according to the
Figure 12-13-14-15.
OVERCURRENT PROTECTION
The overcurrent limit inception is typically at 110% of the rated output current. When this limit is exceeded the output
voltage decreases.
A further current increase will trigger the hiccup protection.
The behavior of the converter when the output is short circuited is shown in Figure 2.
Ordering code
HEQB15A-48V-3.3V
Europe
Magnetek S. p. A
US
Magnetek Inc.
Via S.Giorgio 642
8966 Mason Avenue
52028- Terranuova Bracciolini, Arezzo, Italy
Phone: (+39) 055.9195.1
Fax: (+39) 055.9195.248
http:// www.magnetek.it
Chatsworth, CA 91311, USA
Phone: (+1) 818.727.2216
Fax: (+1) 818.727.2276
Toll-Free Number: (+1) 800.621.0733
http: // www.magnetekpeg.com
P/N 7Q05E0WB000
HEQB 15A 48V 3.3V DS rev 2-d 7Q05– page 10
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