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| 型号： | EXB250-48S1V8-K |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 108 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | HALF BRICK PACKAGE-9 |
| 文件页数： | 1/3页 |
| 文件大小： | 94K |
| 代理商： | EXB250-48S1V8-K |
DC-DC CONVERTERS
72-165 W High Efficiency DC-DC Converters
1
2 YEAR WARRANTY
EXB250 Series
Single output
High efficiency topology, 90% typical at 3.3 V
Industry standard footprint
Wide baseplate temperature, -40 C to +100 C
(natural convection)
90% to 110% output trim
No minimum load
Overvoltage protection
Remote ON/OFF
Available RoHS compliant
The EXB250 is a new high efficiency, open-frame, isolated 165 Watt converter series in an
industry standard half-brick footprint. The EXB250 delivers very high output current at low
voltages, and excellent useable power density for today’s high end applications. The design takes
advantage of open frame construction to provide a low weight, low thermal impedance baseplate
design. The seven models in the series feature an input voltage range of 33 Vdc to 75 Vdc and
are available in output voltages of 12 V, 5 V, 3.3 V, 2.5 V, 1.8 V, 1.5 V and 1.2 V. The output voltage
on each model is adjustable from 90% to 110% of the nominal value. Typical efficiencies for the
models are 90% for the 3.3 V, 88% for the 2.5 V and 87% for the 1.8 V version. The EXB250
series also has a remote ON/OFF capability. Overcurrent and overvoltage protection features are
included as standard. With full international safety approval including EN60950 (TV Rheinland)
and UL/cUL1950, the EXB250 reduces compliance costs and time to market.
All specifications are typical at nominal input, full load at 25 °C unless otherwise stated
OUTPUT SPECIFICATIONS
Voltage adjustability
90% to 110%
Set point accuracy
±1.6% max.
Line regulation
1.2 V model
±0.2% max.
Low line to high line
All other models
±0.1% max.
Load regulation
Full load to min. load
±0.2% max.
Minimum load
0%
Overshoot
At turn-on and turn-off
None
Undershoot
1.2 V, 1.5 V (Z), 1.8 V (Z),
None
2.5 V (Z) and 3.3 V (Z) models
Ripple and noise
5 Hz to 20 MHz
60 mV pk-pk
20 mV rms
Transient response
6% max. deviation
(See Note 1)
150 s recovery to
within total error band
INPUT SPECIFICATIONS
Input voltage range
48 Vin nominal
33-75 Vdc
Input current
No load
145 mA max.
Remote OFF
35 mA max.
Input current (max.)
5.7 A max. @ Io max.
(See Note 3)
and Vin = 33-75 Vdc
Input reflected ripple
(See Note 5)
350 mA (pk-pk) typ.
Active high remote ON/OFF
Logic compatibility
Open collector ref to -input
ON
Open circuit or >4.0 Vdc
OFF
<1.2 Vdc
Undervoltage lockout
Power up
32.5 V (typ.)
Power down
30.5 V (typ.)
Start-up time
Power up
10 ms (typ.)
(See Note 6)
Remote ON/OFF
3 ms (typ.)
SPECIFICATIONS
File Name: exb250s.pdf Rev (02): 06 Dec 2005
TV
EMC CHARACTERISTICS
Conducted emissions
EN55022 (See Note 2)
Level A
EN55022 (See Note 2)
Level B
Immunity:
ESD air
EN61000-4-2
8 kV (NP), 15 kV (NP)
ESD contact
EN61000-4-2
6 kV (NP), 8 kV (NP)
Radiated field enclosure
EN61000-4-3
10 V/m (NP)
Conducted (DC power)
EN61000-4-6
10 V (NP)
Conducted (signal)
EN61000-4-6
10 V (NP)
Input transients
ETS 300 132-2, ETR 283
GENERAL SPECIFICATIONS
Efficiency
See table
Operational
Input/output
1500 Vdc
Input/baseplate
1500 Vdc
Switching frequency
Fixed
400 kHz typ.
Approvals and
EN60950 (TV Rheinland)
standards (See Note 4)
UL/cUL1950
Material flammability
UL94V-0
Weight
73 g (2.6 oz)
MTBF
Telcordia SR-332
1,598,243 hours
@ 25 °C, 100% load
ground benign
Demonstrated
>2,000,000 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating baseplate -40 °C to +100 °C
temperature
Non-operating
-40 °C to +125 °C
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EXB250-48S1V8-R | 功能描述:DC/DC转换器 CONV DC/DC 1.8V OUT RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| EXB250-48S1V8-RJ | 功能描述:DC/DC转换器 108W 33-75Vin 1.8V 60A -NEG REMOTE RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| EXB250-48S2V5 | 功能描述:DC/DC转换器 150W 2.5V 60A RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| EXB250-48S2V5J | 功能描述:DC/DC转换器 150W 2.5V 60A RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
| EXB250-48S2V5-R | 功能描述:DC/DC转换器 CONV DC/DC 2.5V OUT RoHS:否 制造商:Murata 产品: 输出功率: 输入电压范围:3.6 V to 5.5 V 输入电压（标称）: 输出端数量:1 输出电压（通道 1）:3.3 V 输出电流（通道 1）:600 mA 输出电压（通道 2）: 输出电流（通道 2）: 安装风格:SMD/SMT 封装 / 箱体尺寸: |
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