BTCPOWER HB75D-48

BTCPower
TM
HB75D-48 Series
Broadband TelCom Power, Inc.
Redefining “Current” Limits In Power Conversion
48Vin
Dual Output 15/15A Half Bricks
Description
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
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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 )
• Meets conducted limits of FCC Class B and CEI
IEC61204-3 Class B with external filter
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
Applications
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Telecommunications
Data Communications
Wireless Communications
Networking Gear
Servers, Switches and Data Storage
Semiconductor Test Equipment
Distributed Power Architecture
input-to-output isolation
• 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: [email protected] PS HB75D-48 Rev2 16-1-04
HB75D Series
BTCPower
Dual output Half Bricks
TM
Product Brief
Part Number and Selection Information
Model
Part Number
Positive Logic
HB75D-48-0533P
HB75D-48-0525P
Negative Logic
HB75D-48-0533N
HB75D-48-0525N
Input
Voltage (Volts)
Output
Current (A)
Efficiency
Voltage
Current
75% Load
Nominal
Range
No load
Full load
(Volts)
(Amps)
(%)
48
48
36-75
36-75
0.1
0.1
1.86
1.86
5.0/3.3
5.0/2.5
15/15
15/15
84
84
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
Vin +
On/Off
3
Case
4
Vin -
5
6
7
8
9
10
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: [email protected] • PS HB75D-48 Rev2 16-1-04
BTCPower
TM
Technical Specification
HB75D-48 Series
Dual output Half Bricks 75W
Electrical Specification
Typical test data at Ta=25°C, Vin=48V unless otherwise noted.
PARAMETER
NOTES
Absolute maximum rating
Input voltage
Operating case temperature
Storage temperature
MIN
TYP
0
-40
-40
Humidity
MAX
UNIT
80
100
105
V
°C
°C
95
%
Input characteristics
Operating input voltage range
36
75
V
Turn on voltage threshold
33
34
35
V
Turn off voltage threshold
31
33
35
Off converter input current
48Vin
5
V
mA
Output characteristics
Output voltage
HB75D-48-0525P or HB75D-48-0525N 36-75V, no load to full load
2.47
2.50
2.53
V
4.85
5.00
5.15
V
3.27
3.30
3.33
V
4.85
5.00
5.15
V
A
0
15
15
15
5Vo
0
15
A
Percentage of normal output
20Mz bandwidth, 100% Load, 48Vin
-5
+5
150
%
mV(pk-pk)
140
150
110
±0.05
%
%
°C
%/°C
40
ms
800
400
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
Output voltage trim range
Output voltage ripple and noise
Output over power protection
Over-voltage protection
Over-temperature protection
Temperature coefficient
Output dynamic characteristics
0
0
100
110
Startup time
5% to 95% of the output voltage
Transient recovery time
Transient Peak
25% load change (2.0A/us)
25% load change (2.0A/us)
120
130
105
A
A
Efficiency
HB75D-48-0525P or HB75D-48-0525N
83 (2)
%
HB75D-48-0533P or HB75D-48-0533N
83 (2)
%
Isolation voltage(primary to secondary) 1minute
1500
VDC
Isolation voltage (primary to case)
1minute
1000
VDC
Isolation voltage (secondary to case)
1minute
500
VDC
Isolation resistance
500VDC, Primary to secondary
Isolation characteristics
10
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: s[email protected] • PS HB75D-48 Rev1 10-14-02
BTCPower
TM
Technical Specification
HB75D-48 Series
Dual output Half Bricks 75W
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: [email protected] • PS HB75D-48 Rev1 10-14-02
BTCPower
TM
Technical Specification
HB75D-48 Series
Dual output Half Bricks 75W
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: [email protected] • PS HB75D-48 Rev1 10-14-02
BTCPower
TM
Technical Specification
HB75D-48 Series
Dual output Half Bricks 75W
Protection Features
Input Under-voltage lockout ( IUV )
Input under voltage ( IUV ) is standard with the
HB unit. The unit will shut down when the input
voltage drops below a threshold, and the unit will
turn on when the input voltage goes to the upper
threshold.
The hysteretic voltage of the under voltage
protection is 1V, normally from the 35V to 34V
range.
Over Temperature Protection ( OTP )
The unit will shut down when the base plate
temperature exceeds the protection threshold.
The unit will shut down under the base plate
temperature over a 105°C condition to protect the
unit from overheating. The OTP circuit will turn
the unit off when OTP happens. Once the unit
has shut down, it will restart at the cycle when the
base plate temperature goes down.
Output Over-current Protection ( OCP )
The unit will shut down when the over current or
short circuit condition exists.
Once the OCP happens, the unit has shut down.
The attempted restart will continue indefinitely
until the over current or short circuit condition is
removed. When OCP happens, the output
voltage drops below 1.1V.
Input voltage has almost no effect on the current
limit point.
Output Over-voltage Protection ( OVP )
The unit will shut down when the output voltage
exceeds the over voltage threshold.
If the output voltage across Vout(+) (pin9) and
Vout(-) (pin5) exceeds the threshold of the OVP
circuitry, the unit has shut down which is caused
by an OVP circuit, and the unit will never restart,
and the output voltage is below 0.5V.
Broadband TelCom Power, Inc. 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P 6 of 7
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: [email protected] • PS HB75D-48 Rev1 10-14-02
BTCPower
TM
Technical Specification
HB75D-48 Series
Dual output Half Bricks 75W
Application information
Input Source Impedance
The unit has been designed to be stable with no
external capacitors when used in a low
inductance input and output circuit.
However in many applications, the inductance
with the distribution from the power source to the
input of the unit can affect the stability of the unit.
The addition of 100uF electrolytic capacitor with
an Esr < 1Ω (at 100khz) across the input can
ensure the stability of the unit. Also in many
applications, the user has to use decoupling
capacitors at the output load, to ensure the hold
up time for the load.
Safety Requirements and Considerations
If the input source is non-SELV ( ELV or a
hazardous voltage greater than 60 Vdc and less
than or equal to 75 Vdc), for the unit output to be
considered meeting the requirements of safety
extra low voltage (SELV), all of the following must
be met:
•
The input source is to be provided with
reinforced insulation from any hazardous
voltage, including the ac main.
•
The input pins of the unit are not operator
accessible.
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For whole system, for safety agencies
requirements, and for the combination of
the unit’s input side (primary side) and the
unit’s output side (secondary side), verify
that under a single fault, hazardous
voltages do not appear at the unit’s output
side (secondary side).
Never ground either of the input pins of
the unit without grounding one of the
output pins. This may allow a non-SELV
voltage to appear between the output pin
and ground.
The unit meets the American and International
safety regulatory requirement UL1950. Basic
insulation is also provided between the input side
and the output side.
To meet safety agencies requirements, an input
line fuse must be used external to the unit. An 8A
fuse or less with a normal blow rate must be used
to meet the safety agencies requirements. A
minimum 42LFM airflow should also be provided
if the unit is intended to operate at full power
without heatsink.
•
Broadband TelCom Power, Inc. 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P 7 of 7
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: [email protected] • PS HB75D-48 Rev1 10-14-02