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參數(shù)資料
| 型號： | PMP5818UWSR |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 88 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT PACKAGE-11 |
| 文件頁數(shù)： | 39/60頁 |
| 文件大?。?/td> | 4072K |
| 代理商： | PMP5818UWSR |
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Ericsson Internal
PRODUCT SPECIFICATION
3 (13)
Prepared (also subject responsible if other)
No.
EYIPYAN
3/1301-BMR657 5818 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
EQUENXU
2007-7-9
B
The required capacitance above the minimum will be
determined by actual transient deviation requirements.
When using one or more non-ceramic capacitors, the
calculated equivalent ESR should be no lower than 4 mΩ
(7mΩ 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 (V
adj)
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.
E
PMP 5000 series
PoL Regulator
Input 4.5 - 14 V, Output up to 16 A / 88 W
EN/LZT 146 388 R1B December 2009
Ericsson AB
Technical Specication
44
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