HEQB-25A-48V-3.3V-PPL [BEL]
1-OUTPUT DC-DC REG PWR SUPPLY MODULE, QUARTER BRICK PACKAGE-8;
| 型号： | HEQB-25A-48V-3.3V-PPL |
| 厂家： | 
BEL FUSE INC. |
| 描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE, QUARTER BRICK PACKAGE-8 输出元件 |
| 文件： | 总12页 (文件大小：447K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HEQB-25A-48V-3.3V
48Vin 25Aout 3.3Vout , DC-DC Converter
High Efficiency, Isolated Quarter Brick
Features
• Very high efficiency: 91%
• Wide input voltage range (36 to 75Vdc)
• Low profile, industry standard footprint and pin out:
2.3" x 1.45" x 0.36" (58.4mm x 36.8mm x 9.35mm)
• Total weight: 34g. (1.2oz.)
• Remote ON/OFF
• Output voltage trim – Industry standard trim equation
• Remote sense
• Fixed Frequency (Input-Output ripple 400 kHz)
• Under voltage lockout (UVLO), Input – auto recover
• Over voltage protection – auto recover
• Over current protection – auto recover
• Over temperature protection – auto recover
• Operating temperature range: -40°C to +100°C
• Input to Output Isolation at 2000Vdc, 10MΩ
• UL/CUL, CSA/CSAUS, TUV and KEMA Certified
•
ISO 9001 Certified manufacturing processes
Product Highlights
•
HEQB Family of dc-dc converters is
Magnetek’s solution for next
generation, cutting-edge board
applications.
•
Synchronous rectification uses
MOSFET instead of Schottky diodes
providing extreme reduction in heat
generation, boosting efficiency,
eliminating the need for a heat sink and
increased reliability.
•
•
Low profile (0.36”), open frame
construction allows smaller card pitch
and improves system ventilation.
Fixed switching frequency provides
predictable EMI characteristics.
P/N 7Q00H5WB000
Date: 06/03/03 DS HEQB 25A 48V 3-3V_7Q00_030603 Rev 4A – page 1
Magnetek PEG web site, www.magnetekpower.com
HEQB–25A–48V–3.3V
Mechanical Drawings
2.3
(58.42)
- All dimensions are in inches (mm)
Tolerances: x.xx in. +/-0.2 in. (0.5mm)
0.14
2.01
(51)
(3.68)
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
Negative terminal for the input bus
1
Vin (-)
2
ON/OFF
Vin (+)
Vout (+)
Sense (+)
TRIM
External input signal, TTL. Output voltage ON or OFF
Positive terminal for the input bus
Positive terminal for output voltage
Positive remote sense
3
4
5
6
Output voltage TRIM
7
Sense (-)
Vout (-)
Negative remote sense
8
Return terminal for output voltage
P/N 7Q00H5WB000
page 2
DS HEQB 25A 48V 3-3V_7Q00_030603 Rev 4A –
Magnetek PEG web site, www.magnetekpower.com
HEQB–25A–48V–3.3V
Specifications
(Typical value standard at nominal input line, full load, airflow 300 LFM, 25°C ambient temperature unless otherwise specified)
Input Characteristics
Notes & Conditions
Note 1
Min
Typ
Max
75
100
Units
Operating Input Voltage Range
Input Surge Voltage
36
48
V
V
T< 10µs
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Hysteresis Voltage
34.3
33.8
0.4
34.8
34.3
0.5
35.4
34.8
0.6
2.59
100
6
V
V
V
Maximum Input Current
VIN=36V; Full Load
A
No-load Input Current
75
4
mA
mA
A2s
mA
Off Converter Input Current
Inrush Current Transient Rating
Input Reflected-Ripple Current
0.01
3
RMS; see figures 1, 2
NOTE 1:
NOTE 1:
NOTE 1: Absolute max. input voltage 80V
Output Characteristics
Notes & Conditions
Min
Typ
Max
Units
Output Voltage Set Point
50 % Load
3.28
3.30
3.32
V
Output Voltage Regulation
Load
Vnom = 48V
Io = 15A
± 5
± 2
± 8
± 5
mV
mV
mV
V
Line
Temperature
± 15
± 30
3.335
Total Output Voltage Range
Output Voltage Ripple and Noise
Peak to Peak
3.265
20 MHz bandwidth
Full load,
60
14
100
20
mV
mV
A
see figures 1, 4
Io,
RMS
Operating Output Current Range
0
-
25
29
see figures 12, 13
Output DC Current Limit Inception
Output DC Current Limit Shutdown
Voltage
26
27
A
V
See figure 5
2.75
2.88
3.05
Admissible Output capacitance
Full load, resistive
0
20000
µF
Dynamic Characteristics
Notes & Conditions
Min
Typ
Units
Max
470µF load cap,
1A/µs; figures 8, 9
50%Io to 75% Io
75% Io to 50% Io
Output Voltage Current Transient
Positive Step Change
Negative Step Change
Settling Time to 1%
170
170
300
mV
mV
µs
Turn-On Transient
Figures 6 and 7
Full load
Overshoot
Turn-On Time
Start-Up Inhibit Period
0
15
120
%
20
ms
ms
Efficiency
Notes & Conditions
VIN = 48V
Min
Typ
90.5
91.0
90.5
Max
Units
%
100% Load
80% Load
56% Load
%
VIN = 48V
%
VIN = 48V
Isolation Characteristics
Notes & Conditions
Basic Isolation
Min
Typ
Max
Units
VDC
pF
Isolation Voltage - input to output
2000
Isolation Capacitance
Isolation Resistance
Basic Isolation
2200
10
MΩ
P/N 7Q00H5WB000
page 3
DS HEQB 25A 48V 3-3V_7Q00_030603 Rev 4A –
Magnetek PEG web site, www.magnetekpower.com
HEQB–25A–48V–3.3V
Feature Characteristics
Min.
190
Typ.
200
Max
210
Units
kHz
Double Frequency for
Input-Output Ripple
Switching frequency
ON/OFF Control
Off-State Voltage
On-State Voltage
2.7
0
10
0.5
+10
V
V
Output Voltage Trim Range
Output Voltage Remote Sense
Range
-10
%
+10
%
Over Voltage Protection
Threshold
115
120
125
130
%
Over Current Protection
Threshold
26-35 A
125
Over Temperature Protection
Threshold
Average PCB
temperature
°C
General Characteristics
Operating Range Temperature
Storage Temperature
Notes & Conditions
Maximum Rating
Maximum Rating
Non condensing
Min
-40
-50
5
Typ
Max
Units
°C
+100
+120
95
°C
Relative Humidity
%
Bellcore Issue 4
Calculated MTBF
Min. 1,500,000 hours
RDF93 HRD Issue 5
Safety and Regulatory
TUV and KEMA certified for basic insulation compliance to EN06950 requirements
UL and CSA 22.2 No. 950-95(US and Canada) certified with basic insulation for compliance to UL60950.
Note : An external input fuse must always be used for compliance to listed safety requirements.
CE compliant per 72/23/EEC (Low voltage directive) and 93/68/EEC to facilitate CE Mark at system level.
Material flammability rating, UL94V-0
NEBS compliant
Characteristic Curves
Figure 3
Figure 2
Figure 4
DC/DC
Vout
-
Is
Converter
-
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 7Q00H5WB000
page 4
DS HEQB 25A 48V 3-3V_7Q00_030603 Rev 4A –
Magnetek PEG web site, www.magnetekpower.com
HEQB–25A–48V–3.3V
FIGURE 2: Input Reflected Ripple Current, set-up per
figure 1; 10µH source impedance. Nominal
input voltage at full rated load.
FIGURE 3: Input Terminal Ripple Current, set-up per
figure 1, 10µH source impedance and 47µF
electrolytic capacitor Nominal input voltage at
full rated load.
FIGURE 5: Load current as a function of time while
attempting to enable into a short circuit, <10mΩ.
FIGURE 4: Output Voltage Ripple, set-up per figure 1, 1µF
ceramic capacitor and 10µF tantalum capacitor.
Nominal input voltage at full rated load
P/N 7Q00H5WB000
page 5
DS HEQB 25A 48V 3-3V_7Q00_030603 Rev 4A –
Magnetek PEG web site, www.magnetekpower.com
HEQB–25A–48V–3.3V
FIGURE 6: Turn-on transient at full rated load.
Upper trace: input voltage.
FIGURE 7: Turn-on transient at zero load.
Upper trace: input voltage
Lower trace: output voltage
Lower trace: output voltage
FIGURE 8: Output voltage response to dynamic change in load
current: 75% Io to 50%Io , where:
FIGURE 9: Output voltage response to step-change in load
current. 50%Io to 75% Io , where:
di / dt = 0.1A / µs
di / dt = 1A / µs
Load cap: 10µF, 100 mΩ ESR tantalum
capacitor and 1µF ceramic capacitor
Load cap: 470µF, 30 mΩ ESR tantalum
capacitor and 1µF ceramic capacitor
P/N 7Q00H5WB000
page 6
DS HEQB 25A 48V 3-3V_7Q00_030603 Rev 4A –
Magnetek PEG web site, www.magnetekpower.com
HEQB–25A–48V–3.3V
95
90
85
80
FIGURE 10: Efficiency vs. load current for listed input
Vin= 36V
voltages at 25°C
Vin= 48V
Vin= 75V
75
70
4
6
8
10
12
14
16
18
20
22
25
Output Current [A]
12
10
8
Vin= 36V
Vin= 48V
Vin= 75V
FIGURE 11: Power dissipation vs. load current for listed
input voltages at 25°C
6
4
2
0
4
6
8
10
12
14
16
18
20
22
25
Output Current [A]
P/N 7Q00H5WB000
page 7
DS HEQB 25A 48V 3-3V_7Q00_030603 Rev 4A –
Magnetek PEG web site, www.magnetekpower.com
HEQB–25A–48V–3.3V
FIGURE 12: Maximum output power derating curves
vs. ambient air temperature for airflow
rates of 100 LFM through 400 LFM with air
flowing across the converter from pin 1 to
pin 3 (Transversal) at nominal input
voltage.
25
20
15
10
5
400 LFM
300 LFM
200LFM
100 LFM
0
0
25
40
55
70
85
Ambie nt Air Temperature (°C)
25
FIGURE 13: Maximum output current derating curves vs.
ambient air temperature. Airflow rates of 0
LFM through 400 LFM with air flowing
lengthwise from output to input at nominal
input voltage.
20
15
10
5
400 LFM
300 LFM
200LFM
100 LFM
0 LFM
0
0
25
40
55
70
85
Ambient Air T emperature (°C)
P/N 7Q00H5WB000
page 8
DS HEQB 25A 48V 3-3V_7Q00_030603 Rev 4A –
Magnetek PEG web site, www.magnetekpower.com
HEQB–25A–48V–3.3V
Features and Pins description
REMOTE ON-OFF CONTROL
The default logic is negative, where the Remote On/Off (pin 2) input is referenced to -Vin (pin 1). The Remote On/Off
signal must be lower than 0.8V to enable the output voltage, and higher than 2.7V to disable the output voltage.
Positive logic is an available option, add “–P” to the end of the ordering code.
ON /OFF
ON /OFF
ON /OFF
Vin (-)
Vin (-)
Open Collector Enable Circuit
Vin (-)
Vin (-)
Negative logic
Direct Logic Drive
(permanently Enabled)
Remote Enable Circuit
TRIM
The output voltage can be trimmed by means of an external resistor connected between Trim (pin 6) and +Sense
(pin 5) or -Sense (pin 7). The selection of the resistor follows the industry standard trim equation.
An external resistor connected between Trim and –Sense pins will decrease the output voltage. For a decrease of ∆%
of the nominal output voltage, calculate the value of the external resistor using the following equation:
target
−
511
∆%
3.3 V
Rtrim-down
=
−10.22kΩ
where
∆ =
×100%
3.3
P/N 7Q00H5WB000
page 9
DS HEQB 25A 48V 3-3V_7Q00_030603 Rev 4A –
Magnetek PEG web site, www.magnetekpower.com
HEQB–25A–48V–3.3V
An external resistor connected between Trim and +Sense pins will increase the output voltage. For an increase of ∆%
of the nominal output voltage, calculate the value of the external resistor using the following equation:
5.11*3.3 100 + ∆%
( )
511
∆%
Rtrim-up
=
−
−10.22 KΩ
1.225∆%
SENSE (+ or -)
The +Sense or –Sense pins must be connected to the load or output pins of the converter. To ensure tight regulation at
the system critical load, then the remote sense pins should be connected to the system critical load. Reference
applicable section of data sheet for maximum voltage compensation.
Ensure sufficient margin to the over voltage threshold, review applicable sections of the data sheet and system
loading: output over-voltage protection –Vs- system transient load condition(s).
P/N 7Q00H5WB000
page 10
DS HEQB 25A 48V 3-3V_7Q00_030603 Rev 4A –
Magnetek PEG web site, www.magnetekpower.com
HEQB–25A–48V–3.3V
THERMAL CONSIDERATIONS
The converter has internal thermal protection preventing hot spots on PCB from exceeding MFR’s recommended
temperatures for reliable operation, reference over temperature protection threshold (Section: Feature Characteristics).
Margin to the temperature protection limit should be verified in the application, and should not exceed 120°C on the
thermal reference points as shown in Figure 14.
During an abnormal condition inducing an increase in the converter temperature, the converter output voltage will fold
back when the over temperature protection threshold is reached. The converter will auto-recover when the fault
condition is corrected and time allowed for the converter to cool down.
Figure 14, Thermal reference points
Q4
Q9
OVER CURRENT PROTECTION
The overcurrent limit inception is typically 110% of the rated output current. When the overcurrent limit inception is
exceeded the output voltage will decrease proportional to the increase in the load current. Further increase in the load
current will cause the output voltage to trip the under voltage protection threshold and enter fault protection, or hiccup
reference Figure 5. The converter will enter fault protection typically at 125% of rated output current. When the fault is
removed the converter will auto recover.
P/N 7Q00H5WB000
page 11
DS HEQB 25A 48V 3-3V_7Q00_030603 Rev 4A –
Magnetek PEG web site, www.magnetekpower.com
HEQB–25A–48V–3.3V
Ordering code
Family
Code
Rated
Input
Output Option 1-
Option 2-
Option 3-
Output Voltage Voltage Remote On/Off Logic
Current
Mechanical
PIN Length
HEQB
25A
48V
3.3V
Default Æ Negative Logic DefaultÆ Open Frame DefaultÆ 0.15”
PÆ Positive Logic
PLÆ Cold Plate
1Æ 0.25”
2Æ 0.11”
3Æ 0.18”
Example: HEQB-25A-48V-3.3V-PPL1, Standard quarter brick with Positive Logic, Cold Plate, and
0.25” PIN Length.
Europe
US
Magnetek S.p.a
Magnetek PEG
Via S.Giorgio 642
8966 Mason Avenue
Chatsworth, CA 91311, USA
Phone: (+1) 818.727.2216
Fax: (+1) 818.727.2276
Toll-Free Number: (+1) 800.621.0733
52028- Terranuova Bracciolini, Arezzo, Italy
Phone: (+39) 055.9195.1
Fax: (+39) 055.9195.248
P/N 7Q00H5WB000
page 12
DS HEQB 25A 48V 3-3V_7Q00_030603 Rev 4A –
Magnetek PEG web site, www.magnetekpower.com
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