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參數(shù)資料
| 型號： | PMR5118UWP/B |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | DC-DC REG PWR SUPPLY MODULE |
| 封裝： | 38.61 X 25.91 MM, 9.64 MM HEIGHT,ROHS COMPLAINT, PACKAGE-22 |
| 文件頁數(shù)： | 24/39頁 |
| 文件大?。?/td> | 3144K |
| 代理商： | PMR5118UWP/B |
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Ericsson Internal
PRODUCT SPECIFICATION
5 (10)
Prepared (also subject responsible if other)
No.
ECOCOLO
3/1301-BMR 629 5118 Uen
Approved
Checked
Date
Rev
Reference
SEC/D (Julia You)
EJANLLI
2009-08-31
B
Pre-Bias Startup Capability
A prebias startup condition occurs as a result of an external
voltage being present at the output of a power module prior to
its output becoming active.This often occurs in complex digital
systems when current from another power source is backfed
through a dual-supply logic component, such as FPGA or
ASIC.
The PMR family of regulators incorporate synchronous
rectifiers, but will not sink current during startup, or whenever
the Inhibit pin is held low. However, to ensure satisfactory
operation of this function, certain conditions must be
maintained.
For more inforamtion, please refer to Application Note 205.
Turbo Trans
TM Technology
Turbo Trans
TM optimizes the transient response of the
regulator with added external capacitance using a single
external resistor. The benefits of this technology include:
reduced output capacitance, minimized output voltage
deviation following a load transient, and enhanced stability
when using ultra-low ESR output capacitors. The amout of
output capacitance required to meet a target output voltage
deviation, is reduded with Turbo Trans
TM activated. Likewise,
for a given amout of output capacitance, with Turbo Trans
TM
engaged, the amplitude of the voltage deviation following a
load transient is reduced. Applications requiring tight transient
voltage tolerances and minimized capacitor footprint area
benefit from this technology.
Utilizing Turbo Trans
TM requires connecting a resistor, RTT ,
between the +Sense pin (pin 17) and the Turbo Trans
TM pin
(pin 19), The value of the resistor directly corresponds to the
amount of output capacitance required. For the PMR
5118UW, the minimum required capacitance is 1000F. When
using Turbo Trans
TM, capacitors with a capacitance×ESR
product below 10,000 F×m are required.
To have a better understanding of the required capacitors with
Turbo Trans
TM, three types of capacitors are defined as below.
a.
1,000)
ESR
e
capacitanc
(100
TypeA
≤
×
<
=
b.
000)
5
ESR
e
capacitanc
000
(1
TypeB
，
≤
×
<
=
c.
10,000)
ESR
e
capacitanc
(5,000
TypeC
≤
×
<
=
As an example, let’s look at a 12-V application requiring a 60
mv deviation during an 15A load transient. A majority of
470F, 10m output capacitors are used. Use the 12 V, Type
B capacitor chart. Dividing 60mV by 15A gives 4mV/A
transient voltage deviation per amp of transient load setp.
Select 4mV/A on the Y-axis and read across to the “With
TurboTrans” plot. Following this point down to the X-axis gives
us a minimum required output capacitance of approximately
1500F. The required RTT resistor value for 1500F can then
be calculated or selected from the below table. The required
RTT resistor is approximately 17.4K.
To see the benefit of Turbo Trans
TM, follow the 4mV/A marking
across to the “Without TurboTrans” plot. Following that point
down shows that you would need a minimum of 7500F of
output capacitance to meet the same transient deviation limit.
This is the benefit of Turbo Trans
TM .
A typical Turbo Trans
TM application schematic is also shown.
E
PMR 5000 series
PoL Regulator
Input 4.5 - 14 V, Output up to 50 A / 180 W
EN/LZT 146 410 R1A August 2009
Ericsson AB
Technical Specication
30
E
PMR 5000 series
PoL Regulator
Input 4.5 - 14 V, Output up to 50 A / 180 W
EN/LZT 146 410 R1A August 2009
Ericsson AB
Technical Specication
30
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PMR5118UWP/C | DC-DC REG PWR SUPPLY MODULE |
| PMR5118UWSR/B | DC-DC REG PWR SUPPLY MODULE |
| PMR5118UWS/C | DC-DC REG PWR SUPPLY MODULE |
| PMR5118UWS/B | DC-DC REG PWR SUPPLY MODULE |
| PMR8210S/B | DC-DC REG PWR SUPPLY MODULE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PMR5118UWS | 制造商:Ericsson 功能描述:- Trays |
| PMR5118UWSR | 功能描述:DC/DC 開關(guān)控制器 PoL Regul in 4.5-14V O/P 0.7-3.6 50A RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| PM-R54 | 制造商:PANASONIC ELECTRIC WORKS ACSD 功能描述:SENSOR,CONNECTOR R TYPE,LO/DO,5MM FIXED 制造商:PANASONIC ELECTRIC WORKS - ACSD 功能描述:SENSOR 5MM 5-24VDC NPN 制造商:Panasonic Electric Works 功能描述:SENSOR, PHOTO, 5MM, NPN; Sensing Range Max:5mm; Output Current:50mA; Sensor Output:NPN; Supply Voltage DC Min:5V; Supply Voltage DC Max:24V; Sensing Range:0mm to 5mm; Supply Voltage Range DC:5V to 24V ;RoHS Compliant: Yes 制造商:Panasonic Electric Works 功能描述:U-SHAPED MICRO PHOTOELECTRIC SENSOR |
| PMR54P | 制造商:Panasonic Electric Works 功能描述:U-shaped thru-beam sensor,PMR54P |
| PM-R54P | 制造商:PANASONIC ELECTRIC WORKS ACSD 功能描述:Sensor, Photoelectric, R-TYPE U-SHAPED 5MM,5-24VDC,PNP,L-D/ON,CONNECTOR 制造商:PANASONIC ELECTRIC WORKS - ACSD 功能描述:SENSOR 5MM 5-24VDC PNP 制造商:PANASONIC INDUSTRIAL AUTOMATION SALES 功能描述:SENSOR 5MM 5-24VDC PNP |
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