BTCPower
HB75-48 Series
TM
Broadband TelCom Power,
Inc.
Redefining “Current” Limits In Power Conversion
Technical Specification
48Vin 2.5, 3.3, 5.0, 12, 15, 24Vout 75W
Description
The HB75 Series of low cost half brick DC/DC
converters are comparable to existing half-bricks. They
are targeted specifically at the telecommunication,
industrial electronics, mobile telecommunication and
distributed power markets. With a wide input voltage
range of 36-75V they are available with output voltage
of either 2.5, 3.3, 5, 12, 15 or 24Volts. All models
feature an input filter, input undervoltage lockout,
output overvoltage and overtemperature protection,
output current limiting and short circuit protection. The
unique open-frame construction with aluminum heat
spreader design achieves efficient heat transfer with
no hot spots.
Features
• Delivers up to 75W in half brick
• No minimum load required
• Low profile of only 0.50 inch
• 2.5V, 3.3V, 5V, 12V, 15V or 24V output
models
• Wide input operating range 36-75V
• -40°C to +100°C ambient operation
• On/Off pin and remote sense
• Output adjustment +10% and –10% range
• 1500V, 10M
input-to-output isolation
• Meets Basic Insulation requirements of
EN60950
• UL 1950 recognized, TUV EN60950 and CSA
C22.2 No. 60950-00 Certified (pending)
• Meets conducted limits of FCC Class B and
CEI IEC61204-3 Class B with external filter
• MTBF of 1,000,000 hours @ 50°C
(Bellcore)
Applications
•
•
•
•
•
•
•
Telecommunications
Data Communications
Wireless Communications
Networking Gear
Servers, Switches and Data Storage
Semiconductor Test Equipment
Distributed Power Architecture
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 HB75-48 Rev2 16-1-04
Technical Specification
HB75-48 Series
48Vin 2.5, 3.3, 5, 12, 15, 24Vout 75W
BTCPower
CONVERTER SELECTION
TM
Typical @ T
a
=+25°C under nominal line voltage and 75% load conditions, unless noted.
Model
Part Number
Voltage (Volts)
Nominal
48
48
48
48
48
48
Range
36-75
36-75
36-75
36-75
36-75
36-75
Input
Current (A)
No load
0.1
0.1
0.1
0.1
0.1
0.1
Full load
1.05
1.31
1.88
1.83
1.84
1.82
Output
Voltage
(Volts)
2.5
3.3
5.0
12
15
24
Current
(Amps)
15
15
15
6.25
5.0
3.13
Efficiency
75% Load
(%)
77
79
83
85
85
85
Positive Logic
HB75-48-25
HB75-48-33
HB75-48-05
HB75-48-12
HB75-48-15
HB75-48-24
Negative Logic
HB75-48-25N
HB75-48-33N
HB75-48-05N
HB75-48-12N
HB75-48-15N
HB75-48-24N
Consult factory for other output voltage configurations.
Outline and Pin-out Information
Pin Connection
Pin#
Function
1
2
3
4
5
6
7
8
9
Vin +
On/Off
Case
Vin -
Vout -
Sense -
Trim
Sense +
Vout +
All dimensions are in inches [mm]
Pin 5 and 9 are dia. 0.08 [2.03]
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
Tolerance
Inches
•XX
±
0.020
•XXX
±
0.010
Pin:
±
0.002
Millimeters
•X
±
0.5
•XX
±
0.25
±
0.05
The information and specifications contained in this specification are believed to be accurate and reliable at the time
of publication. Specifications are subject to change without notice.
Broadband TelCom Power, Inc.
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P
2 of 8
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com •
PS HB75-48 Rev2 16-1-04
Technical Specification
HB75-48 Series
48Vin 2.5, 3.3, 5, 12, 15, 24Vout 75W
BTCPower
TM
Electrical Specification
Typical test data at Ta=25°C, Vin=48V unless otherwise noted.
PARAM ETER
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
HB75-48-25 or HB75-48-25N
HB75-48-33 or HB75-48-33N
HB75-48-05 or HB75-48-05N
HB75-48-12 or HB75-48-12N
HB75-48-15 or HB75-48-15N
HB75-48-24 or HB75-48-24N
Output current
HB75-48-25 or HB75-48-25N
HB75-48-33 or HB75-48-33N
HB75-48-05 or HB75-48-05N
HB75-48-12 or HB75-48-12N
HB75-48-15 or HB75-48-15N
HB75-48-24 or HB75-48-24N
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
HB75-48-25 or HB75-48-25N
HB75-48-33 or HB75-48-33N
HB75-48-05 or HB75-48-05N
HB75-48-12 or HB75-48-12N
HB75-48-15 or HB75-48-15N
HB75-48-24 or HB75-48-24N
Isolation characteristics
Isolation voltage(primary to secondary) 1minute
36Vin
NOTES
MIN
0
-40
-40
TYP
MAX
80
100
105
95
75
UNIT
V
°C
°C
%
V
V
V
mA
36
33
31
34
33
5
35
35
36-75Vin, no load to full load
36-75Vin, no load to full load
36-75Vin, no load to full load
36-75Vin, no load to full load
36-75Vin, no load to full load
36-75Vin, no load to full load
2.47
3.25
4.85
11.7
14.5
23.5
0
0
0
0
0
0
2.50
3.30
5.00
12.0
15.0
24.0
2.53
3.35
5.15
12.3
15.5
24.5
V
V
V
V
V
V
A
A
A
A
A
A
%
mV(pk-pk)
mV(pk-pk)
%
%
°C
%/°C
ms
µs
mv
%
%
%
%
%
%
15
15
15
6.25
5.0
3.13
+10
100
150
240
140
150
110
±0.05
Percentage of normal output
20Mz bandwidth, 100% Load, 48Vin, for 2.5,3.3,5,12,15V
For 24V
-10
110
120
130
105
5% to 95% of the output voltage
25% load change (2.0A/us)
25% load change (2.0A/us)
77
79
82
89
85
86
20
800
400
1500
VDC
Broadband TelCom Power, Inc.
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P
3 of 8
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com •
PS HB75-48 Rev2 16-1-04
Technical Specification
HB75-48 Series
Isolation voltage (primary to case)
Isolation voltage (secondary to case)
Isolation resistance
1minute
1minute
500VDC, Primary to secondary
10
BTCPower
48Vin 2.5, 3.3, 5, 12, 15, 24Vout 75W
1000
500
TM
VDC
VDC
MΩ
Broadband TelCom Power, Inc.
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P
4 of 8
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com •
PS HB75-48 Rev2 16-1-04
Technical Specification
HB75-48 Series
48Vin 2.5, 3.3, 5, 12, 15, 24Vout 75W
BTCPower
TM
Basic operation and functions
The
HB family
uses planar transformer
technology to achieve high output current. The
whole unit switches at the fixed frequency for a
predictable EMI performance. The
HB 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 ( pin9, pin5 )
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.
Remote Sense ( pin 8, pin 6 )
Output power Vout(+) must be connected to
Positive output voltage pin9; Output power
Vout(-) must be connected to Negative output
voltage pin5.
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.
Permits the user to maintain the accurate output
voltage at the remote load terminals regardless of
the line drop.
The Sense(-) (pin6) and Sense(+) (pin8) should
be connected at the load or at the point where the
regulation is needed. ( shown on Fig. 2)
Fig 2: Remote Sense Circuit
Fig. 1: Typical Circuit for On/Off Function
The remote sense feature of the unit
compensates for voltage drop occurring between
the output pins of the unit and load. The Sense(-)
(pin5) and Sense(+)(pin7) should be connected at
the load or at the point where regulation is
required.
If remote Sense is not required, the Sense(-) pin
must be connected to the Vout(-) pin (pin5), and
Pin 2 is the "Enable" pin, connecting a TTL
compatible pin. A TTL control signal to this pin,
Broadband TelCom Power, Inc.
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P
5 of 8
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com •
PS HB75-48 Rev2 16-1-04
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