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參數(shù)資料
| 型號： | YNC05S20-0 |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 22/26頁 |
| 文件大?。?/td> | 386K |
| 代理商： | YNC05S20-0 |
OCT 02, 2006 revised to APR 23, 2007
Page 5 of 26
www.power-one.com
YNC05S20 DC-DC Converter Data Sheet
4.5-5.5 VDC Input; 0.7525-3.63 VDC Programmable @ 20A
Operation
Input and Output Impedance
The YNC05S20 converter should be connected
via a low impedance to the DC power source. In
many applications, the inductance associated with
the distribution from the power source to the input
of the converter can affect the stability of the
converter. It is recommended to use decoupling
capacitors in order to ensure stability of the
converter and reduce input ripple voltage. The
converter has an internal input capacitance of 52
μF with very low ESR ceramic capacitors.
In a typical application, low - ESR tantalum or
POS capacitors will be sufficient to provide
adequate ripple voltage filtering at the input of the
converter. However, very low ESR ceramic
capacitors of 100-200μF are recommended at the
input of the converter in order to minimize the
input ripple voltage. They should be placed as
close as possible to the input pins of the converter.
YNC05S20
has
been
designed
for
stable
operation with or without external capacitance.
Low ESR ceramic capacitors (minimum 100 μF)
placed as close as possible to the load are
recommended for improved transient performance
and lower output voltage ripple.
It is important to keep low resistance and low
inductance PCB traces when connecting the load
to the output pins of the converter in order to
maintain good load regulation.
ON/OFF (Pin 1)
The ON/OFF pin is used to turn the power the
converter on or off remotely via a system signal
that is referenced to GND. Typical connections are
shown in Fig. A.
To turn the converter on the ON/OFF pin should
be at a logic low or left open, and to turn the
converter off the ON/OFF pin should be at a logic
high or connected to Vin.
Vin
CONTROL
INPUT
Vin
GND
ON/OFF
SENSE
(Top View)
Converter
TRIM
Vout
R*
R* is for negative logic option only
Rload
Nex -c Series
TM
Fig. A: Circuit configuration for ON/OFF function.
The positive logic version turns the converter on
when the ON/OFF pin is at a logic high or left
open, and turns the converter off when at a logic
low or shorted to GND.
The negative logic version turns the converter on
when the ON/OFF pin is at a logic low or left open,
and turns the converter off when the ON/OFF pin
is at a logic high or connected to Vin.
ON/OFF pin is internally pulled-up to Vin for a
positive logic version, and pulled-down for a
negative logic version. A TTL or CMOS logic gate,
open collector (open drain) transistor can be used
to drive ON/OFF pin. When using open collector
(open drain) transistor with a negative logic option,
add a pull-up resistor (R*) of 10 k to Vin as
shown in Fig. C. External pull-up resistor (R*) can
be increased to 20 k if minimum input voltage is
more than 4.5V. This device must be capable of:
- sinking up to 0.6 mA at a low level voltage of
≤ 0.8 V
- sourcing up to 0.25 mA at a high logic level of
2.3V – 5.5V.
Remote Sense (Pin 2)
The remote sense feature of the converter
compensates for voltage drops occurring only
between Vout pin (Pin 4) of the converter and the
load. The SENSE (Pin 2) pin should be connected
at the load or at the point where regulation is
required (see Fig. B). There is no sense feature on
the output GND return pin, where a solid ground
plane is recommended to provide a low voltage
drop.
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相關代理商/技術參數(shù) |
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| YNC05S20-0G | 制造商:Power-One 功能描述:Module DC-DC 1-OUT 0.7525V to 3.63V 20A 66W 6-Pin SMD 制造商:Power-One 功能描述:DC/DC PS SGL-OUT 0.7525V TO 3.63V 20A 66W 6PIN - Bulk |
| YNC05S20-D | 制造商:Power-One 功能描述:Module DC-DC 1-OUT 0.7525V to 3.63V 20A 66W 6-Pin SMD |
| YNC05S20-DG | 制造商:Power-One 功能描述: |
| YNC10S20A-0 | 制造商:POWER-ONE 制造商全稱:Power-One 功能描述:9.6-14 VDC Input; 0.7525-5.5 VDC Programmable 20 A |
| YNC10S20A-0G | 制造商:POWER-ONE 制造商全稱:Power-One 功能描述:9.6-14 VDC Input; 0.7525-5.5 VDC Programmable 20 A |
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