参数资料
| 型号： | SQ48S04120-NS00 |
| 厂商： | Power-One |
| 文件页数： | 4/64页 |
| 文件大小： | 0K |
| 描述： | DC/DC EIGHTH BRICK |
| 标准包装： | 175 |
| 系列： | * |
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SQ48 DC-DC Series Data Sheet
36-75 VDC Input; 1.0-12 VDC Output
5.11(100 + Δ)V O ? NOM ? 626
1.225 Δ
R T ? INCR =
? 7.2
84.6
Δ
R T ? INCR =
? 9
120
Δ
R T ? DECR =
? 10.22
511
Δ
R T ? DECR =
? 15
700
Δ
R T ? DECR =
? 17
700
| Δ |
designer must, if necessary, decrease the maximum
current (originally 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.
Output Voltage Adjust /TRIM (Pin 6)
The output voltage can be adjusted up 10% or down
20% for Vout ≥ 1. 5 V, and ± 10% for Vout = 1.2 V
relative to the rated output voltage by the addition of
an externally connected resistor. For output voltage
3.3 V, trim up to 10% is guaranteed only at
Vin ≥ 40 V, and it is marginal (8% to 10%) at
Vin = 36 V.
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(-) pins.
To increase the output voltage, refer to Fig. C. A trim
resistor, R T-INCR , should be connected between the
TRIM (Pin 6) and SENSE(+) (Pin 7), with a value of:
R T ? INCR = ? 10.22 [k ? ],
for 1.5 – 12 V.
[k ? ] (1.2 V)
[k ? ] (1.0 V)
When trimming up, care must be taken not to exceed
the converter‘s maximum allowable output power. See
the previous section for a complete discussion of this
requirement.
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:
[k ? ] (1.5 – 12 V)
[k ? ] (1.2 V)
[k ? ] (1.0 V)
where,
R T ? DECR = Required value of trim-down resistor [k ? ]
and Δ is defined above.
Note:
The above equations for calculation of trim resistor values match
those typically used in conventional industry-standard quarter-
bricks and one-eighth bricks (except for 1.2 V and 1.0 V outputs).
Converters with output voltages 1.2 V and 1.0 V are
available with alternative trim feature to provide the
customers with the flexibility of second sourcing.
These converters have a “T” character in the part
number. The trim equations of “T” version of
converters and more information can be found in
Application Note 103.
Semi Q Family
where,
R T ? INCR = Required value of trim-up resistor [k ? ]
V O ? NOM = Nominal value of output voltage [V]
Vin
Vin (+)
ON/OFF
TM
Converter
(Top View)
Vout (+)
SENSE (+)
TRIM
SENSE (-)
R T-DECR
Rload
Δ =
(V O -REQ ? V O -NOM )
V O - NOM
X 100 [%]
Vin (-) Vout (-)
Fig. D: Configuration for decreasing output voltage.
Semi Q Family
Vin (+)
Vout (+)
(Top View)
Vin
V O ? REQ = Desired (trimmed) output voltage [V].
TM
Converter
SENSE (+)
R T-INCR
ON/OFF TRIM
Rload
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 ensure that the difference between
the voltages across the converter’s output pins and its
sense pins does not exceed 10% of V OUT ( NOM ), or:
Vin (-)
SENSE (-)
Vout (-)
[V OUT ( + ) ? V OUT ( ? )] ? [V SENSE ( + ) ? V SENSE ( ? )] ≤ V O - NOM X 10% [V]
Fig. C: Configuration for increasing output voltage.
This equation is applicable for any condition of output
sensing and/or output trim.
Rev6 11-Apr-2011
Page 4 of 64
www.power-one.com
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相关代理商/技术参数 |
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|---|---|
| SQ48S04120-NS00G | 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: |
| SQ48S04120-NS0P | 制造商:Power-One 功能描述:MOD DC-DC 1-OUT 12V 4A 50W 8PIN QUARTER-BRICK - Bulk |
| SQ48S04120-NS0PG | 制造商:Power-One 功能描述:MOD DC-DC 1-OUT 12V 4A 50W 8PIN QUARTER-BRICK - Bulk |
| SQ48S04120-NS0S | 制造商:Power-One 功能描述:MOD DC-DC 1-OUT 12V 4A 50W 8PIN QUARTER-BRICK - Bulk |
| SQ48S04120-NS0SG | 制造商:Power-One 功能描述:MOD DC-DC 1-OUT 12V 4A 50W 8PIN QUARTER-BRICK - Bulk |
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