Datasheet > Q24T25033-NDD0G

Q24T25033-NDD0G

更新时间： 2024-02-07 08:52:05

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BEL		/
页数	文件大小	规格书
14页	251K
描述
DC-DC Regulated Power Supply Module, 1 Output, 82.5W, Hybrid, ROHS COMPLAINT, QUARTER BRICK, 8 PIN

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Q24T25033-NDD0G 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	compliant	ECCN代码：	EAR99
风险等级：	5.82	模拟集成电路 - 其他类型：	DC-DC REGULATED POWER SUPPLY MODULE
最大输入电压：	36 V	最小输入电压：	18 V
标称输入电压：	24 V	JESD-30 代码：	R-XDMA-P8
JESD-609代码：	e0	长度：	58.42 mm
功能数量：	1	输出次数：	1
端子数量：	8	最高工作温度：	85 °C
最低工作温度：	-40 °C	最大输出电压：	3.63 V
最小输出电压：	2.64 V	标称输出电压：	3.3 V
封装主体材料：	UNSPECIFIED	封装形状：	RECTANGULAR
封装形式：	MICROELECTRONIC ASSEMBLY	认证状态：	Not Qualified
座面最大高度：	10.16 mm	表面贴装：	NO
技术：	HYBRID	温度等级：	INDUSTRIAL
端子面层：	TIN LEAD OVER NICKEL	端子形式：	PIN/PEG
端子节距：	3.81 mm	端子位置：	DUAL
最大总功率输出：	82.5 W	微调/可调输出：	YES
宽度：	36.83 mm

Q24T25033-NDD0G 数据手册

Q24T25033 DC-DC Converter Data Sheet

18-36 VDC Input; 3.3 VDC @ 25A Output

(0.15 to 2.5 m/s), and vertical and horizontal converter

mounting.

Characterization

General Information

For each set of conditions, the maximum load current was

defined as the lowest of:

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.

(i) The output current at which either any FET junction tem-

perature did not exceed a maximum specified temperature

(either 105°C or 120°C) as indicated by the thermographic

image, or

(ii) The nominal rating of the converter (25 A)

The following pages contain specific plots or waveforms as-

sociated with the converter. Additional comments for specific

data are provided below.

During normal operation, derating curves with maximum FET

temperature less than or equal to 120°C should not be ex-

ceeded. Temperature on the PCB at the thermocouple loca-

tion shown in Fig. 28 should not exceed 118°C in order to

operate inside the derating curves.

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.

Efficiency

Efficiency vs. load current plots are shown in Figs. 14 and 16

for ambient temperature of 25ºC, airflow rate of 300 LFM

(1.5 m/s), both vertical and horizontal orientations, and input

voltages of 18 V, 27 V and 36 V. Also, plots of efficiency vs.

load current, as a function of ambient temperature with Vin =

27 V, airflow rate of 200 LFM (1 m/s) are shown for both a

vertically and horizontally mounted converter in Figs. 15 and

17, respectively.

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 Power-

One’s vertical and horizontal wind tunnel facilities using

Infrared (IR) thermography and thermocouples for thermo-

metry.

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. 18 and 19, respectively.

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. Power-One recom-

mends the use of AWG #40 gauge thermocouples to ensure

measurement accuracy. Careful routing of the thermocouple

leads will further minimize measurement error. Refer to Fig-

ure 28 for optimum measuring thermocouple location.

Ripple and Noise

Figure 22 shows the output voltage ripple waveform, meas-

ured at full rated load current with a 10 µF tantalum and 1 µF

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 23. The corresponding

waveforms are shown in Figs. 24 and 25.

Thermal Derating

Load current vs. ambient temperature and airflow rates are

given in Figs. 10-13. Ambient temperature was varied be-

tween 25°C and 85°C, with airflow rates from 30 to 500 LFM

MCD10223 Rev. 1.0, 02-Sep-10

Page 8 of 14

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