SQE48T30033-NGA0G POWER ONE, SQE48T30033-NGA0G Datasheet - Page 7

• Manufacturer Part Number: SQE48T30033-NGA0G
• Description: Module DC-DC 1-OUT 3.3V 30A 8-Pin 1/8-Brick
• Manufacturer: POWER ONE
• Type: Step Downr

Specifications of SQE48T30033-NGA0G

• Number Of Outputs: 1
• Package: 81/8-Brick
• Output Current: 30 A
• Output Voltage: 3.3 V
• Input Voltage: 48 V
• Output Power: 99 W
• Input Voltage Range: 36 V to 75 V
• Input Voltage (nominal): 48 V
• Output Voltage (channel 1): 3.3 V
• Output Current (channel 1): 30 A
• Isolation Voltage: 2250 V
• Package / Case Size: Eighth Brick
• Output Type: Isolated
• Product: Isolated
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Protection Features
Input Undervoltage Lockout
Input undervoltage lockout is standard with this
converter. The converter will shut down when the
input voltage drops below a pre-determined voltage.
The input voltage must be typically 34 V for the
converter to turn on. Once the converter has been
turned on, it will shut off when the input voltage
drops typically below 32 V. This feature is beneficial
in preventing deep discharging of batteries used in
telecom applications.
Output Overcurrent Protection (OCP)
The converter is protected against overcurrent or
short circuit conditions. Upon sensing an overcurrent
condition, the converter will switch to constant
current operation and thereby begin to reduce output
voltage. When the output voltage drops below 60%
of the nominal value of output voltage, the converter
will shut down (Fig x.15).
Once the converter has shut down, it will attempt to
restart nominally every 200 ms with a typical 3-5%
duty cycle (Fig. x.16). The attempted restart will
continue indefinitely until the overload or short circuit
conditions are removed or the output voltage rises
above 40-50% of its nominal value.
Once the output current is brought back into its
specified range, the converter automatically exits the
hiccup mode and continues normal operation.
For implementations where latching is required, a
“Latching” option (L) is available for short circuit and
OVP protections. Converters with the latching
feature will latch off if either event occurs. The
converter will attempt to restart after either the input
voltage is removed and reapplied OR the ON/OFF
pin is cycled
Output Overvoltage Protection (OVP)
The converter will shut down if the output voltage
across Vout(+) (Pin 8) and Vout(-) (Pin 4) exceeds
the threshold of the OVP circuitry. The OVP circuitry
contains its own reference, independent of the output
voltage regulation loop. Once the converter has shut
down, it will attempt to restart every 200 ms until the
OVP condition is removed.
For implementations where latching is required, a
“Latching” option (L) is available for short circuit and
OVP protections. Converters with the latching
feature will latch off if either event occurs. The
converter will attempt to restart after either the input
voltage is removed and reapplied OR the ON/OFF
pin is cycled.
ZD-01961 Rev. 2.0, 05-Feb-10
www.power-one.com
36-75 VDC Input; 1.2-3.3 VDC @ 30 A Output
SQE48T30 DC-DC Series Data Sheet
Overtemperature Protection (OTP)
The
overtemperature condition to protect itself from
overheating caused by operation outside the thermal
derating curves, or operation in abnormal conditions
such as system fan failure. The converter with the
non-latching option will automatically restart after it
has cooled to a safe operating temperature.
Safety Requirements
The
International safety regulatory requirements per
UL60950 and EN60950. Basic Insulation is provided
between input and output.
To comply with safety agencies’ requirements, an
input line fuse must be used external to the
converter.
recommended fuse rating for use with this family of
products.
All SQE converters are UL approved for maximum
fuse rating of 15A. To protect a group of converters
with a single fuse, the rating can be increased from
the recommended value above.
Electromagnetic Compatibility (EMC)
EMC requirements must be met at the end-product
system level, as no specific standards dedicated to
EMC characteristics of board mounted component
dc-dc converters exist. However, Power-One tests its
converters to several system level standards,
primary of which is the more stringent EN55022,
Information
disturbance characteristics-Limits and methods of
measurement.
An effective internal LC differential filter significantly
reduces input reflected ripple current, and improves
EMC. With the addition of a simple external filter, all
versions of the SQE48-Series of converters pass the
requirements of Class B conducted emissions per
EN55022 and FCC requirements. Contact Power-
One Applications Engineering for details of this
testing.
converters
converter
Output Voltage
1.8 V, 1.5 V
The
3.3 V
2.5 V
1.2 V
technology
will
meet
Table
shut
North
below
equipment
Fuse Rating
down
2.5 A
5 A
4 A
3 A
American
provides
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