參數(shù)資料
型號: PQ60033EGL20NKS-G
廠商: SYNQOR INC
元件分類: 電源模塊
英文描述: 1-OUTPUT 66 W DC-DC REG PWR SUPPLY MODULE
封裝: ROHS COMPLIANT, EIGHTH BRICK PACKAGE-8
文件頁數(shù): 3/13頁
文件大?。?/td> 1209K
代理商: PQ60033EGL20NKS-G
Technical
Specification
PQ60033EGx20
Product # PQ60033EGx20
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-0005349 Rev. A
09/23/09
Page 11
APPLICATION CONSIDERATIONS
Input System Instability: This condition can occur because
any DC/DC converter appears incrementally as a negative
resistance load. A detailed application note titled “Input
System Instability” is available on the SynQor website which
provides an understanding of why this instability arises, and
shows the preferred solution for correcting it.
Application Circuits: Figure D below provides a typical circuit
diagram which details the input filtering and voltage trimming.
Input Filtering and External Capacitance: Figure E below
provides a diagram showing the internal input filter components.
This filter dramatically reduces input terminal ripple current,
which otherwise could exceed the rating of an external electro-
lytic input capacitor. The recommended external input capaci-
tance is specified in the “Input Characteristics” section. More
detailed information is available in the application note titled
“EMI Characteristics” on the SynQor website.
External
Input
Filter
Trim
Vin(+)
Cload
L
C
Vout(+)
Rtrim-up
or
Rtrim-down
Vsense(+)
ON/OFF
Vin(_)
Vin(+)
Vin(_)
Vout(_)
Vsense(_)
Figure D: Typical application circuit (negative logic unit, permanently enabled).
Figure E: Internal Input Filter Diagram (component values listed on page 3).
Electrolytic
Capacitor
47F
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