BTCPower
HB75D-48 Series
Description
TM
Broadband TelCom Power,
Inc.
Redefining “Current” Limits In Power Conversion
48Vin
Dual Output 15/15A Half Bricks
The HB75D-48 series of low cost DC/DC converters offer the
different current levels and are comparable to existing
quarter-bricks. With a wide input voltage range of 36-75V
they are available with Dual output voltages of either 5.0/3.3
or 5.0/2.5 Volts. All models feature an input filter, output
overvoltage and overtemperature protection, output current
limiting and short circuit protection. The unique frame
construction with aluminum heat spreader design achieves
efficient heat transfer with no hot spots. The use of patented
Flat Matrix Transformer technology and other patent-pending
design concepts facilitate maximum power delivered. The
converters combine creative design concepts with highly
derated power devices to achieve very high reliability, high
performance and offer a low cost solution to systems
designers that are challenged to maximize power and
minimize board space.
Features
•
Delivers up to 15/15A in Half Brick
•
•
•
•
•
•
•
High efficiency patented topology
Low profile of only 0.50 inch
5.0/3.3 and 5.0/2.5 output modules
100V/100ms Input transient capability
-40°C to +85 °C ambient operation
Meets Basic Insulation requirements of EN60950
UL 1950 recognized, CAN / CSA C22.2 No. 950-95
Certified, and TUV EN60950 ( pending )
Specification Summary
• 5.0V/15A + 3.3V/15A, 5.0V/15A + 2.5V15A
• Tight output regulation, typical ±2%
• No minimum load required
• Ripple & Noise (20Mhz BW) 100 mV (pk-pk)
or 2% (pk-pk)
• Wide input operating range 36-75V
• On/Off pin and remote sense
• Output adjustment +/-10% range
• 1500V, 10M
input-to-output isolation
• Meets conducted limits of FCC Class B and CEI
IEC61204-3 Class B with external filter
Applications
•
Telecommunications
•
•
•
•
•
•
Data Communications
Wireless Communications
Networking Gear
Servers, Switches and Data Storage
Semiconductor Test Equipment
Distributed Power Architecture
• Frame construction with heat spreader for low
temperature rise
• Output overcurrent and overvoltage protection
• Over Temperature protection
• Input Under voltage protection
• MTBF of 1,600,000 hours @ 50°C ( Bellcore )
Broadband TelCom Power, Inc. –
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com PS HB75D-48 Rev2 16-1-04
HB75D Series
Dual output Half Bricks
BTCPower
TM
Product Brief
Part Number and Selection Information
Model
Part Number
Voltage (Volts)
Nominal
48
48
Range
36-75
36-75
Input
Current (A)
No load
0.1
0.1
Full load
1.86
1.86
Output
Voltage
(Volts)
5.0/3.3
5.0/2.5
Current
(Amps)
15/15
15/15
Efficiency
75% Load
(%)
84
84
Positive Logic
HB75D-48-0533P
HB75D-48-0525P
Negative Logic
HB75D-48-0533N
HB75D-48-0525N
Typical at Ta= +25 ºC under nominal line voltage and 75% load conditions, unless noted.
Consult factory for other output voltage configurations and optional accessories such as heatsinks and filters.
Outline Information and Pin-out
Pin Connection
Pin#
Function
1
2
3
4
5
6
7
8
9
10
Vin +
On/Off
Case
Vin -
Vout 2 +
Vout 2 -
Vout 2 Trim
Vout 1 +
Vout 1 -
Vout 1Trim
All dimensions are in inches [mm]
All other pins are all dia. 0.040 [1.02]
Pin material: Brass
Pin finish: Tin/Lead plated
Heat spreader (baseplate) material:
Aluminum
Weight: 60.5g
The information and specifications contained in this brief are believed to be accurate and reliable at the time of publication. Specifications are
subject to change without notice. Refer to product specification sheet for performance characteristics and application guidelines.
Broadband TelCom Power, Inc.
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P
2 of 7
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com •
PS HB75D-48 Rev2 16-1-04
Technical Specification
HB75D-48 Series
Dual output Half Bricks 75W
BTCPower
TM
Electrical Specification
Typical test data at Ta=25°C, Vin=48V unless otherwise noted.
PARAMETER
Absolute maximum rating
Input voltage
Operating case temperature
Storage temperature
Humidity
Input characteristics
Operating input voltage range
Turn on voltage threshold
Turn off voltage threshold
Off converter input current
Output characteristics
Output voltage
HB75D-48-0525P or HB75D-48-0525N 36-75V, no load to full load
48Vin
NOTES
MIN
0
-40
-40
TYP
MAX
80
100
105
95
UNIT
V
°C
°C
%
V
V
V
mA
36
33
31
34
33
5
75
35
35
2.47
4.85
3.27
4.85
2.50
5.00
3.30
5.00
2.53
5.15
3.33
5.15
V
V
V
V
A
A
A
A
%
mV(pk-pk)
%
%
°C
%/°C
ms
µs
mv
%
%
HB75D-48-0533P or HB75D-48-0533N 18-36Vin, no load to full load
Output current
HB75D-48-0525P or HB75D-48-0525N 2.5Vo
5Vo
HB75D-48-0533P or HB75D-48-0533N 3.3Vo
5Vo
Output voltage trim range
Output voltage ripple and noise
Output over power protection
Over-voltage protection
Over-temperature protection
Temperature coefficient
Output dynamic characteristics
Startup time
Transient recovery time
Transient Peak
Efficiency
HB75D-48-0525P or HB75D-48-0525N
HB75D-48-0533P or HB75D-48-0533N
Isolation characteristics
Isolation voltage(primary to secondary) 1minute
Isolation voltage (primary to case)
Isolation voltage (secondary to case)
Isolation resistance
1minute
1minute
500VDC, Primary to secondary
5% to 95% of the output voltage
25% load change (2.0A/us)
25% load change (2.0A/us)
Percentage of normal output
20Mz bandwidth, 100% Load, 48Vin
0
0
0
0
-5
100
110
120
130
105
15
15
15
15
+5
150
140
150
110
±0.05
40
800
400
83 (2)
83 (2)
1500
1000
500
10
VDC
VDC
VDC
MΩ
Broadband TelCom Power, Inc.
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P
3 of 7
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com •
PS HB75D-48 Rev1 10-14-02
Technical Specification
HB75D-48 Series
Dual output Half Bricks 75W
BTCPower
TM
Basic operation and functions
The
HB75D family
uses planar transformer
technology to achieve high output current. The
whole unit switches at the fixed frequency for a
predictable EMI performance. The
HB75D Brick
has many standard controls and protection
functions.
Input Power ( pin1, pin4 )
Input power Vin(+) must be connected to Positive
input voltage pin1; Input power Vin(-) must be
connected to Negative input voltage pin4.
Output Power 1 ( pin8, pin9 )
Output power Vout 1(+) must be connected to
Positive output voltage pin8; Output power
Vout1(-) must be connected to Negative output
voltage pin9.
Output Power 2 ( pin5, pin6 )
Output power Vout 2(+) must be connected to
Positive output voltage pin5; Output power
Vout2(-) must be connected to Negative output
voltage pin6.
On/Off ( pin 2 )
Permits the user to maintain unit On/Off, in order
to properly sequence different power supplies
and reduce power consumption during the
standby condition. There are two remote control
options available, positive logic and negative logic
is referenced to Vin(-), and typical connections
are shown in Fig 1.
Fig. 1: Typical Circuit for On/Off Function
Pin 2 is the "Enable" pin, connecting a TTL
compatible pin. A TTL control signal to this pin,
according to the specification, will turn the unit on
or off.
The positive logic version turns on when pin 2 is
at logic high, and turns off when pin 2 is at logic
low. The unit is on when pin 2 is left open.
The negative logic version turns on when pin 2 is
at logic low and turns off when pin 2 is at logic
high. The pin 2 can be directed to Vin(-), to
enable automatic turn on to the unit without the
need of an external control signal.
Output Voltage Trim (pin 7)
Permits the user to adjust the output voltage up
or down to achieve the custom voltage or to make
the output voltage margining. The adjustment
range is from + 5% to -5%.
Output voltage can be adjusted up or down, by
connecting the Rtrim-up or Rtrim-down resistor as
shown. Rtrim-up makes the output voltage go up
to 5%; and the Rtrim-down makes the output
voltage go down to 5%.
Leave Trim pin ( Pin7, 10) open for normal output
voltage.
Broadband TelCom Power, Inc.
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P
4 of 7
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com •
PS HB75D-48 Rev1 10-14-02
Technical Specification
HB75D-48 Series
Dual output Half Bricks 75W
BTCPower
TM
When trimming up, care must be taken, not to
exceed the unit OVP threshold. A typical circuit is
shown in Fig. 3.
Fig 3. Trim Up / Down Output Voltage Circuit
Broadband TelCom Power, Inc.
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P
5 of 7
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com •
PS HB75D-48 Rev1 10-14-02
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