- 您现在的位置：买卖IC网 > Datasheet目录875 > QM48T25050-NDA0 (Power-One)DC/DC QTR BRICK 125W 5V T/H Datasheet资料下载
参数资料
| 型号： | QM48T25050-NDA0 |
| 厂商： | Power-One |
| 文件页数： | 4/13页 |
| 文件大小： | 0K |
| 描述： | DC/DC QTR BRICK 125W 5V T/H |
| 标准包装： | 50 |
| 系列： | * |
QM48T/S25050 DC-DC Converter Data Sheet
36-75 VDC Input; 5 VDC @ 25 A Quarter-Brick
obtained from the derating curves) by the same
percentage to ensure the converter’s actual output power
remains at or below the maximum allowable output power.
R T ? DECR =
511
| Δ |
? 10.22 [k ? ]
where,
Output Voltage Adjust /TRIM (Pin 6)
The output voltage can be adjusted up 10% or down 20%
relative to the rated output voltage by the addition of an
externally connected resistor.
The TRIM pin should be left open if trimming is not being
used. To minimize noise pickup, a 0.1 μF capacitor is
connected internally between the TRIM and SENSE(-)
R T ? DECR = Required value of trim-down resistor [k ? ]
and Δ is as defined above.
Note: The above equations for calculation of trim resistor
values match those typically used in conventional industry-
standard quarter-bricks. More information can be found in
Output Voltage Trim Feature Application Note.
QmaX
Series
pins.
To increase the output voltage, refer to Fig. C. A trim
Vin (+)
TM
Converter
(Top View)
Vout (+)
SENSE (+)
resistor, R T-INCR , should be connected between the TRIM
(Pin 6) and SENSE(+) (Pin 7), with a value of:
Vin
ON/OFF
TRIM
SENSE (-)
R T-DECR
Rload
Vin (-)
Vout (-)
R T ? INCR =
5.11(100 + Δ)V O ? NOM ? 626
1.225 Δ
? 10.22 [k ? ]
Fig. D: Configuration for decreasing output voltage.
where,
R T ? INCR = Required value of trim-up resistor k ? ]
V O ? NOM = Nominal value of output voltage [V]
Trimming/sensing beyond 110% of the rated output
voltage is not an acceptable design practice, as this
condition could cause unwanted triggering of the output
overvoltage protection (OVP) circuit. The designer should
Δ =
(V O -REQ ? V O -NOM )
V O - NOM
X 100 [%]
ensure that the difference between the voltages across the
converter’s output pins and its sense pins does not exceed
0.50 V, or:
V O ? REQ = Desired (trimmed) output voltage [V].
When trimming up, care must be taken not to exceed the
converter‘s maximum allowable output power. See
previous section for a complete discussion of this
requirement.
[V OUT ( + ) ? V OUT ( ? )] ? [V SENSE ( + ) ? V SENSE ( ? )] ≤ 0.50 [V]
This equation is applicable for any condition of output
sensing and/or output trim.
QmaX
Series
Vin (+)
TM
Converter
Vout (+)
(Top View)
SENSE (+)
R T-INCR
Vin
ON/OFF
TRIM
Rload
SENSE (-)
Vin (-)
Vout (-)
Fig. C: Configuration for increasing output voltage .
To decrease the output voltage (Fig. D), a trim resistor,
R T-DECR , should be connected between the TRIM (Pin 6)
and SENSE(-) (Pin 5), with a value of:
MAR 27, 2003 revised to SEP 28, 2006
Page 4 of 13
www.power-one.com
相关PDF资料 |
PDF描述 |
|---|---|
| QM48T45010-NAAP | DC/DC QTR BRICK 45W 1V T/H |
| QME48T20120-NGA0 | DC/DC QUARTER BRICK 12V OUT |
| QME48T40050-NGA0 | DC/DC QUARTER BRICK 5V OUT |
| QMS07DH | 19" RACK FOR 3X 48V FRONT END |
| QXK2E106KTP | CAP FILM 10UF 250VDC RADIAL |
相关代理商/技术参数 |
参数描述 |
|---|---|
| QM48T25050-NDA0G | 功能描述:DC/DC转换器 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: |
| QM48T25050-NDAP | 制造商:Power-One 功能描述:DC/DC PS SGL-OUT 5V 25A 8PIN QUARTER-BRICK - Bulk |
| QM48T25050-NDAPG | 制造商:Power-One 功能描述:DC/DC PS SGL-OUT 5V 25A - Bulk |
| QM48T25050-NDB0 | 功能描述:DC/DC转换器 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: |
| QM48T25050-NDB0G | 功能描述:DC/DC转换器 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: |
发布紧急采购，3分钟左右您将得到回复。