BTCPOWER HBO80A-48-2.5N

BTCPower
TM
Broadband TelCom Power, Inc.
Redefining “Current” Limits In Power Conversion
Prelim. Specification
HBO80A-48-2.5, HBO80A-48-2.5N
Description
The HBO80A-48-2.5 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 1.5, 1.8, 2.5, 3.3 or 5 Volts. 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.
Applications
•
•
•
•
•
•
•
Telecommunications
Data Communications
Wireless Communications
Networking Gear
Servers, Switches and Data Storage
Semiconductor Test Equipment
Distributed Power Architecture
48Vin 2.5Vout 80A
Features
• Delivers up to 100A in half brick
• No minimum load required
• Low profile of only 0.36 inch
• 1.5V, 1.8V, 2.5V, 3.3V or 5V 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)
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 HBO80A-48-2.5 Rev1.2 12-8-03
BTCPower
TM
Prelim. Specification
HBO80A-48-2.5
48Vin
2.5Vout 80A
CONVERTER SELECTION
Typical @ Ta=+25°C under nominal line voltage and 75% load conditions, unless noted.
Model
Part Number
Input
Voltage (Volts)
Output
Current (A)
Efficiency
Voltage
Current
75% Load
Positive Logic
Negative Logic
Nominal
Range
No load
Full load
(Volts)
(Amps)
(%)
HBO80A-48-2.5
HBO80A-48-2.5N
48
36-75
0.1
4.7
2.5
80
88
For encapsulated (epoxy enclosed) models, replace “HBO” in part no. with “HBP”.
Consult factory for other output voltage configurations.
Outline and Pin-out Information
Pin Connection
Pin#
Function
1
2
Vin +
On/Off
3
Case
4
Vin -
5
6
7
8
9
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
Millimeters
•XX
± 0.020
•X
± 0.5
•XXX
± 0.010
•XX
± 0.25
Pin:
± 0.002
± 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 HBO80A-48-2.5 Rev1.2 12-8-03
BTCPower
TM
Prelim. Specification
HBO80A-48-2.5
48Vin
2.5Vout 80A
Electrical Specification
Typical test data at Ta=25°C, Vin=48V unless otherwise noted.
PARAMETER
NOTES
MIN
Absolute maximum rating
Input voltage
Operating case temperature
Storage temperature
Humidity
0
-40
-40
Input characteristics
Operating input voltage range
Turn on voltage threshold
Turn off voltage threshold
Off converter input current
36
35
34
36Vin
Output char acteristics
Output voltage
HBO80A-48-2.5 or HBO80A-48-2.5N
Line regulation
36-75Vin, no load to full load
36-75Vin,
Load regulation
Output current
2.47
36-75Vin, 10~100% load
HBO80A-48-2.5 or HBO80A-48-2.5N
Output voltage trim range
Percentage of normal output
Output voltage ripple and noise
20Mz bandwidth, 100% Load, 48Vin
UNIT
80
100
105
95
V
°C
°C
%
75
35.8
34.8
V
V
V
mA
2.50
0.2
2.53
0.3
V
%
0.2
0.3
%
35.4
34.4
6
0
100
A
+10
%
110
Over-voltage protection
Over-temperature protection
Temperature coefficient
Output dynamic characteristics
Startup time
115
HBO80A-48-2.5 or HBO80A-48-2.5N
Isolation characteristics
Isolation voltage(primary to secondary)
MAX
-10
Output over power protection
Transient recovery time
Transient Peak
Efficiency
TYP
70
100
mV(pk-pk)
120
140
%
105
130
110
±0.05
%
°C
%/°C
5% to 95% of the output voltage
10
20
ms
25% load change (2.0A/us)
25% load change (2.0A/us)
300
300
500
400
µs
mv
88
%
1minute
1500
VDC
Isolation voltage (primary to case)
1minute
1000
VDC
Isolation voltage (secondary to case)
1minute
1000
VDC
Isolation resistance
500VDC, Primary to secondary
Isolation voltage (secondary to case)
1minute
10
MΩ
1000
VDC
Feature Characteristics
Switching frequency
ON/OFF control (Positive logic)
Converter On
Converter Off
ON/OFF control (Negative logic)
Converter On
Converter Off
Calculated MTBF
Weight
280
HBO80A-48-2.5
HBO80A-48-2.5N
Bellcore @ 50°C
300
320
KHz
2.5
-1.0
7
0.5
V
V
-1.0
2.5
0.5
7
3,000,000
V
V
Hrs
51
g
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 HBO80A-48-2.5 Rev1.2 12-8-03
BTCPower
TM
Prelim. Specification
HBO80A-48-2.5
48Vin
2.5Vout 80A
Basic operation and functions
The HBO / HBP family uses planar transformer
technology to achieve high output current. The
whole unit switches at the fixed frequency for a
predictable EMI performance. The HBO / HBP
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 )
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.
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.
Remote Sense ( pin 8, pin 6 )
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.
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 HBO80A-48-2.5 Rev1.2 12-8-03
BTCPower
TM
Prelim. Specification
HBO80A-48-2.5
48Vin
2.5Vout 80A
If remote Sense is not required, the Sense(-) pin
must be connected to the Vout(-) pin (pin5), and
the Sense(+) pin must be connected to the
Vout(+) pin(pin 9) to ensure the unit will regulate
at the specified output voltage. If these
connections are not made, the unit’s output
voltage will be higher than the specified value.
The unit output over voltage protection senses
the voltage across Vout(+) and Vout(-), and not
across the sense lines, so the resistance between
the output pins of the unit and the load should be
minimized to prevent unwanted triggering of the
OVP.
When using the remote sense feature, the output
voltage at the unit can be increased by as much
as 10% above the normal rating, in order to
maintain the required voltage across the load.
Therefore, the designer must consider this
condition.
Fig 3. Trim Up Output Voltage Circuit
For Trim up resistor value, we list the reference
“Trim Up Resistance” for increasing the output
voltage for every 1 percent (see Trim Table 1).
Fig 5. shows “Trim Up Resistance” value chart.
Trimming down the output voltage for a typical
circuit, as shown on Fig. 4.
Also when using the remote sense function, the
output power must be taken care of, as not to
exceed the maximum power capability of the unit.
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 + 10% to -10%.
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 10%; and the Rtrim-down makes the output
voltage go down to 10%.
Fig 4. Trim Down Output Voltage Circuit
For Trim down resistance value, we list the
reference “Trim Down Resistance” for decreasing
output voltage for every 1 percent (see Trim
Table 2.).
Fig 6 shows “Trim Down Resistance” value chart.
Leave Trim pin ( Pin 7) open for normal output
voltage.
When trimming up, care must be taken, not to
exceed the unit OVP threshold. A typical circuit is
shown in Fig. 3.
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 HBO80A-48-2.5 Rev1.2 12-8-03
BTCPower
TM
Prelim. Specification
HBO80A-48-2.5
48Vin
2.5Vout 80A
60
Rtrim-up (Kohm)
50
40
30
20
10
0
1
2
3
4
5
6
7
8
9 10
Trim up Vout change %
Rtrim-up(K)
53.0
20.4
12.6
9.1
7.2
5.9
5.0
4.3
3.8
3.4
Vout(v)
2.525
2.550
2.575
2.600
2.625
2.650
2.675
2.700
2.725
2.750
Trim up Vout %
1
2
3
4
5
6
7
8
9
10
Table 1: Rtrim-up resistor values
Fig 5. Trim Up Resistance for reference chart
7.0
Rtrim-dn (Kohm)
6.0
5.0
4.0
3.0
2.0
1.0
0.0
1
2
3
4
5
6
7
8
9 10
Trim down Vout change %
Rtrim-dn(K)
5.8
3.2
2.1
1.5
1.2
0.9
0.7
0.6
0.5
0.4
Vout(v)
2.475
2.450
2.425
2.400
2.375
2.350
2.325
2.300
2.275
2.250
Trim down Vout %
1
2
3
4
5
6
7
8
9
10
Table 2: Rtrim-down resistor values
Fig 6 Trim Down Resistance for reference chart
Broadband TelCom Power, Inc. 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P 6 of 8
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com • PS HBO80A-48-2.5 Rev1.2 12-8-03
BTCPower
TM
Prelim. Specification
HBO80A-48-2.5
48Vin
2.5Vout 80A
Protection Features
Input Under-voltage lockout ( IUV )
Input under voltage ( IUV ) is standard with the
HBO / HBP 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 34.5V to 35.4V
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 0.8V.
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 7 of 8
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com • PS HBO80A-48-2.5 Rev1.2 12-8-03
BTCPower
TM
Prelim. Specification
HBO80A-48-2.5
48Vin
2.5Vout 80A
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.
•
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
15A 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.
Worldwide Headquarter:
Broadband TelCom Power, Inc.
1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
Tel.: 714-259-4888 Fax: 714-259-0840
Email: sales@btcpower.com
•
European Headquarter:
Broadband TelCom Power Europe B. V.
Dukaatstraat 14, 4879AD Etten-Leur, The Netherlands
Tel.: 31-76-5038350 Fax: 31-76-5012038
Email: info.europe@btcpower.com
www.btcpower.com
Broadband TelCom Power, Inc. 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A.
P 8 of 8
Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com • PS HBO80A-48-2.5 Rev1.2 12-8-03