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Emerson

TQN20A48S12SB-RJ Datasheet Preview

TQN20A48S12SB-RJ Datasheet

DC-DC / Intermediate Bus Converter

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Embedded Power for
Business-Critical Continuity
Quarter-Brick
Series
Narrow Input IBC
Total Power: 240 -300W
Input Voltage: 48VDC
# of Outputs: Single
Rev.04.02.08
Quarter-brick narrow input IBC
1 of 4
Special Features
• 48 V input with isolated
12 V output
• Efficiencies up to 96%
• Open loop regulation
• Fully rated 240 W @ 70 °C,
200 LFM
• Overcurrent protection
• Operates with no load
• Auto restart after fault
condition
• Remote ON/OFF
• Parallelable
• Over-temperature protection
• Available RoHS compliant
• 2 Year Warranty
This series is a new, high efficiency, Quarter-Brick, isolated,
Intermediate Bus Converter series that provides up to 300 Watts of
output power. The series is designed to convert 48 Volts ±10% to a
loosely regulated 12 Volts at full rated load up to 25 A and
efficiencies up to 96%. This converter is available in four package
types, standard quarter-brick through-hole, through-hole vertical,
standard quarter-brick surface-mount, and quarter-brick
surface-mount solder ball. In addition, this series features remote
ON/OFF, no-load operation, input undervoltage protection as well
as output overvoltage and overcurrent protection.
Safety
UL/cUL : CAN/CSA 22.2
No. 60950
UL 60950 File No. E139421
TÜV Product Service (EN60950)
Certificate No.
B03 04 19870213




Emerson

TQN20A48S12SB-RJ Datasheet Preview

TQN20A48S12SB-RJ Datasheet

DC-DC / Intermediate Bus Converter

No Preview Available !

Embedded Power for
Business-Critical Continuity
Specifications
All specifications are typical at nominal input, full load at 25 °C ambient unless otherwise stated.
Rev.04.02.08
Quarter-brick narrow input IBC
2 of 4
OUTPUT SPECIFICATIONS
Output voltage
12 V
Current share accuracy Full load
10%
Line regulation
Low line to high line
±10% max.
Load regulation
Full load to min. load
6% max.
Minimum load
0A
Overshoot
3.0% max.
Undershoot
200 mV max.
Ripple and noise
(See Note 1)
5-20 MHz
150 mV pk-pk
Transient response
(See Note 2)
Deviation
<100 mV
<100 μs recovery to
within total error band
Overvoltage setpoint
13.8 V
INPUT SPECIFICATIONS
Input voltage range
Input current
Input reflected ripple
Nominal 48 Vdc
No load
Remote OFF
(See Note 3)
Remote ON/OFF
Under-voltage lockout
Start-up time
(See Note 4)
ON
OFF
Power up
Power down
Power up
Power down
±10% Vdc
100 mA typ.
2 mA typ.
34 mA rms
100 mA pk-pk
>1.7 Vdc
<0.8 Vdc
41.0 V
38.6 V
<50 ms
<20 ms
EMC CHARACTERISTICS
Conducted emissions
Immunity:
ESD air
ESD contact
Radiated field enclosure
Conducted (dc power)
Conducted (signal)
EN55022 (See Note 5)
EN55022 (See Note 5)
EN61000-4-2 4 kV
EN61000-4-2 4 kV
EN61000-4-3 3 V/m
EN61000-4-6 3 V
EN61000-4-6 3 V
Level A
Level B
GENERAL SPECIFICATIONS
Efficiency
Half load
Up to 96% typ.
Isolation
Input/output
2250 Vdc
Switching frequency
Fixed
300 kHz typ.
Approvals and
standards (See Note 6)
EN60950 (TÜV Product Service)
UL/cUL60950
Material flammability
UL94V-0
Weight
56.66 g (2 oz)
MTBF
Representative model:
MIL-HDBK-217F
1,000,000 hours
25 A @ 48 Vin, 40 °C ambient
100% load ground benign
Telcordia SR-332
2,828,160 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
(300 LFM airflow)
Operating ambient,
temperature
Non-operating
0 °C to +80 °C
-55 °C to +125 °C


Part Number TQN20A48S12SB-RJ
Description DC-DC / Intermediate Bus Converter
Maker Emerson
Total Page 4 Pages
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