- 您现在的位置：买卖IC网 > PDF目录223398 > ASQ48T15033-NEB0 (POWER-ONE INC) 1-OUTPUT 49.5 W DC-DC REG PWR SUPPLY MODULE PDF资料下载
参数资料
| 型号： | ASQ48T15033-NEB0 |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 49.5 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | ONE-EIGHTH BRICK PACKAGE-8 |
| 文件页数： | 15/15页 |
| 文件大小： | 267K |
| 代理商： | ASQ48T15033-NEB0 |
MCD10170 Rev. 1.0, 10-Jun-10
Page 9 of 15
www.power-one.com
ASQ48T15033 & ASQ48S15033 DC-DC Converter Data Sheet
36 to 75 VDC Input; 15A, 3.3 VDC Output
Characterization
General Information
The converter has been characterized for many operational
aspects, to include thermal derating (maximum load current
as a function of ambient temperature and airflow) for vertical
and horizontal mounting, efficiency, start-up and shutdown
parameters, output ripple and noise, transient response to
load step-change, overload and short circuit.
The following pages contain specific plots or waveforms as-
sociated with the converter. Additional comments for specific
data are provided below.
Test Conditions
All data presented were taken with the converter soldered to
a test board, specifically a 0.060” thick printed wiring board
(PWB) with four layers. The top and bottom layers were not
metalized. The two inner layers, comprising two-ounce cop-
per, were used to provide traces for connectivity to the con-
verter.
The lack of metalization on the outer layers as well as the
limited thermal connection ensured that heat transfer from
the converter to the PWB was minimized. This provides a
worst-case but consistent scenario for thermal derating pur-
poses.
All measurements requiring airflow were made in di/dt’s ver-
tical and horizontal wind tunnel facilities using Infrared (IR)
thermography and thermocouples for thermometry.
Ensuring components on the converter do not exceed their
ratings is important to maintaining high reliability. If one an-
ticipates operating the converter at or close to the maximum
loads specified in the derating curves, it is prudent to check
actual operating temperatures in the application. Thermo-
graphic imaging is preferable; if this capability is not availa-
ble, then thermocouples may be used. di/dt recommends the
use of AWG #40 gauge thermocouples to ensure measure-
ment accuracy. Careful routing of the thermocouple leads
will further minimize measurement error. Refer to Figure 27
for optimum measuring thermocouple location.
Thermal Derating
Load current vs. ambient temperature and airflow rates are
given in Figs. 9-12 for through-hole and surface mount ver-
sion. Ambient temperature was varied between 25°C and
85°C, with airflow rates from 30 to 500 LFM (0.15 to 2.5
m/s), and vertical and horizontal converter mounting.
For each set of conditions, the maximum load current was
defined as the lowest of:
(i) The output current at which any FET junction temperature
does not exceed a maximum specified temperature (120°C)
as indicated by the thermographic image, or
(ii) The nominal rating of the converter (15 A).
During normal operation, derating curves with maximum FET
temperature less or equal to 120°C should not be exceeded.
Temperature on the PCB at the thermocouple location
shown in Fig. 27 should not exceed 118°C in order to oper-
ate inside the derating curves.
Efficiency
Figure 13 shows the efficiency vs. load current plot for am-
bient temperature of 25 C, airflow rate of 300 LFM (1.5 m/s)
with converter mounted vertically, and input voltages of 36 V,
48 V, and 72 V. Also, a plot of efficiency vs. load current, as
a function of ambient temperature with Vin = 48 V, airflow
rate of 200 LFM (1 m/s) with converter mounted vertically is
shown in Fig. 14.
Power Dissipation
Power dissipation vs. load current plot is shown in Fig. 15 for
ambient temperature of 25 C, airflow rate of 300 LFM (1.5
m/s) with converter mounted vertically, and input voltages of
36 V, 48 V, and 72 V. Also, a plot of power dissipation vs.
load current, as a function of ambient temperature with Vin =
48 V, airflow rate of 200 LFM (1 m/s) is shown for a vertically
mounted converter in Fig. 16
Start-up
Output voltage waveforms, during the turn-on transient using
the ON/OFF pin for full rated load currents (resistive load)
are shown without and with 10,000
F load capacitance in
Figs. 17 and 18, respectively.
Ripple and Noise
Figure 21 shows the output voltage ripple waveform, meas-
ured at full rated load current with a 10 F tantalum and 1 F
ceramic capacitor across the output. Note that all output vol-
tage waveforms are measured across a 1
F ceramic capa-
citor.
The input reflected ripple current waveforms are obtained
using the test setup shown in Fig 22. The corresponding
waveforms are shown in Figs. 23 and 24.
相关PDF资料 |
PDF描述 |
|---|---|
| ASQ48T15033-PBB0G | 1-OUTPUT 49.5 W DC-DC REG PWR SUPPLY MODULE |
| ASR303.825A01-SE | 1-PORT SAW RESONATOR, 303.825 MHz |
| ASR310E | 1-PORT SAW RESONATOR, 310 MHz |
| ASR310S2 | 1-PORT SAW RESONATOR, 310 MHz |
| ASR315EA | 1-PORT SAW RESONATOR, 315 MHz |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ASQ48T15033-PBA0 | 制造商:Power-One 功能描述:DC/DC PS SGL-OUT 3.3V 15A - Bulk |
| ASQ48T15033-PBC0 | 制造商:Power-One 功能描述:DC/DC PS SGL-OUT 3.3V 15A - Bulk |
| ASQ530F-02-06S | 制造商:SMC Corporation of America 功能描述:Air saving valve port size 1/4 |
| ASQ530F-02-08S | 制造商:SMC 功能描述:Air saving valve port size 1/4 |
| ASQ530F-03-08S | 制造商:SMC 功能描述:Air saving valve port size 3/8 |
发布紧急采购，3分钟左右您将得到回复。