參數(shù)資料
型號(hào)： PMN8118UWP
廠商： ERICSSON POWER MODULES AB
元件分類： 電源模塊
英文描述： 1-OUTPUT 108 W DC-DC REG PWR SUPPLY MODULE
封裝： ROHS COMPLIANT PACKAGE-14
文件頁(yè)數(shù)： 20/37頁(yè)
文件大?。?/td> 2048K
代理商： PMN8118UWP
Ericsson Internal
PRODUCT SPECIFICATION
2 (8)
Prepared (also subject responsible if other)
No.
EYIPYAN
3/1301-BMR656 8118 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
EQUENXU
2007-7-9
B
External Capacitors
Input capacitors:
The recommended input capacitors are determined by the
470 F minimum capacitance and 500 mArms minimum
ripple current rating.
For high-performance/transient application, or wherever the
input source performance is degraded, 1000 F of input
capacitance is recommended. The additional input
capacitance above the minimum level insures an optimized
performance.
Output capacitors:
The recommended output capacitance of 470 F will allow
the module to meet its transient response specification as
defined in the electrical specification.
When using one or more non-ceramic capacitors, the
calculated equivalent ESR should be no lower than 4 m
(7m using the manufacturer’s maximum ESR for a single
capacitor).
Turbo TransTM allows the designer to optimize the
capacitance load according to the system transient design
requirement. High quality, ultra-low ESR capacitors are
required to maximize Turbo TransTM effectiveness. Capacitors
with a capacitance (F)×ESR (m) ≤ 10,000 m × F are
required.
Required Capacitor with Turbo Trans. See the Turbo TransTM
Application information for Capacitor Selection.
Capacitor Type Group by ESR (Equivalent Series Resistance)
Type A = (100<capacitance×ESR≤1,000)
Type B = (1,000<capacitance×ESR≤5,000)
Type C = (5,000<capacitance×ESR≤10,000)
Input And Output Impedance
The impedance of both the input source and the load will
interact with the impedance of the DC/DC regulator. It is
important that the input source has low characteristic
impedance. The regulators are designed for stable operation
without external capacitors connected to the input or output.
The performance in some applications can be enhanced by
addition of external capacitance as described under External
Decoupling Capacitors. If the input voltage source contains
significant inductance, the addition of a 100 F capacitor
across the input of the regulator will ensure stable operation.
The capacitor is not required when powering the DC/DC
regulator from an input source with an inductance below
10 H.
External Decoupling Capacitors
When powering loads with significant dynamic current
requirements, the voltage regulation at the point of load can
be improved by addition of decoupling capacitors at the load.
The most effective technique is to locate low ESR ceramic
and electrolytic capacitors as close to the load as possible,
using several parallel capacitors to lower the effective ESR.
The ceramic capacitors will handle high-frequency dynamic
load changes while the electrolytic capacitors are used to
handle low frequency dynamic load changes. Ceramic
capacitors will also reduce any high frequency noise at the
load.
It is equally important to use low resistance and low
inductance PCB layouts and cabling.
External decoupling capacitors will become part of the
control loop of the DC/DC regulator and may affect the
stability margins. As a “rule of thumb”, 100 F/A of output
current can be added without any additional analysis. The
ESR of the capacitors is a very important parameter. Power
Modules guarantee stable operation with a verified ESR value
of >10 m across the output connections.
For further information please contact your local Ericsson
Power Modules representative.
Output Voltage Adjust (Vadj)
The DC/DC regulators have an Output Voltage Adjust pin
(Vadj). This pin can be used to adjust the output voltage above
or below Output voltage initial setting.
To increase or decrease the voltage, the resistor should be
connected between the Vadj pin and GND pin. The resistor
value of the output voltage adjust function is according to
information given under the output section for the respective
product.
Parallel Operation
Two regulators may be paralleled for redundancy if the total
power is equal or less than PO max. It is not recommended to
parallel the regulators without using external current sharing
circuits.
Remote Sense
The DC/DC regulators have remote sense that can be used to
compensate for voltage drops between the output and the
point of load. The sense traces should be located close to the
PCB ground layer to reduce noise susceptibility. The remote
sense circuitry will compensate for up to 10% voltage drop
between output pins and the point of load.
E
PMN 8000 series
POL regulator, Input 5.5-14 V, Output up to 30 A/108 W
EN/LZT 146 387 R1A
July 2007
Ericsson Power Modules AB
Technical Specification
27
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PMN8118UWP/B 制造商:Ericsson 功能描述:CONVERTER/PMN8118UW P 5.5-14VIN/0.7-3.6V - Trays
PMN8118UWS 功能描述:DC/DC轉(zhuǎn)換器 .7-3.6 Vdc 30A Iso Input 4.5-5.5V 108W RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
PMN8118UWSR 功能描述:DC/DC轉(zhuǎn)換器 0.7-3.6V 30A Non-Iso Input 5.5-14V 108W RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
PMN8118UWSR/C 制造商:Ericsson 功能描述:30A 5.5V TO 14V INP NON-ISOL ADJ -40+85 DIPMOD-14 LF - Tape and Reel 制造商:Ericsson 功能描述:30A 5.5V TO 14V INP NON-ISOL LF
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