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參數(shù)資料
| 型號： | PMR5118UWS/C |
| 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)： | 22/39頁 |
| 文件大?。?/td> | 3144K |
| 代理商： | PMR5118UWS/C |
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Ericsson Internal
PRODUCT SPECIFICATION
4 (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
Over Current Protection (OCP)
The regulators include current limiting circuitry for protection at
continuous overload. The output voltage will decrease towards
zero for output currents in excess of max output current (max
IO). The regulator will resume normal operation after removal
of the overload. The load distribution should be designed for
the maximum output short circuit current specified.
Soft-start Power Up
From the moment a valid input voltage is applied, the soft-start
control introduces a short time-delay (typically 5-15 ms) before
allowing the output voltage to rise. The initial rise in input
current when the input voltage first starts to rise is the charge
current drawn by the input capacitors.
Auto-Track Function
Auto-Track was designed to simplify the amount of circuitry
required to make the output voltage from each unit power up
and power down in sequence. The sequencing of two or more
supply voltages during power up is a common requirement for
complex mixed-signal applications, that use dual-voltage VLSI
ICs such as DSPs, micro-processors and ASICs.
Notes on Use of Auto-Track
1. The Track pin voltage must be allowed to rise above the
module set-point voltage before the module regulates at its
adjusted set-point voltage.
2. The Auto-Track function tracks almost any voltage ramp
during power up, and is compatible with ramp speeds of up to
1 V/ms.
3. The absolute maximum voltage that may be applied to the
Track pin is the input voltage VI.
4. The module cannot follow a voltage at its track control
input until it has completed its soft-start initialization.
This takes about 20 ms from the time that a valid voltage has
been applied to its input. During this period, it is
recommended that the Track pin be held at ground potential.
5. The Auto-Track function is disabled by connecting the
Track pin to the input voltage (VI). When Auto-Track is
disabled, the output voltage rises according to its softstart
rate after input power has been applied.
6. The Auto-Track pin should never be used to regulate the
module's output voltage for long-term, steady-state
operation.
Smart Sync
Smart Sync is a feature that allows multiple power modules to
be synchronized to a common frequency. When not used, this
pin must be connect to GND. Driving the Smart Sync pins with
an external oscillator set to the desired frequency,
synchronizes all connected modules to the selected requency.
The synchronization frequency can be higher or lower than the
nominal switching frequency of the modules within the range
of 240 kHz to 400 kHz.
Synchronizing modules powered from the same bus
eliminates beat frequencies reflected back to the input supply,
and also reduces EMI filtering requirements. Eliminating the
low beat frequencies (usually<10kHz) allows the EMI filter to
be designed to attenuate only the synchronization frequency.
Power modules can also be synchronized out of phase to
minimize ripple current and reduce input capacitance
requirements.
The PMR 5118UW requires that the external synchronization
frequency be present before a valid input voltage is present or
before release of the inhibit control.
Operating the PMR 5118UW with a low duty cycle may
increase the output voltage ripple. When operating at the
nominal switching frequency, input voltages greater than (VO
×12) may cause the output voltage ripple to increase (up to
2×).
When using Smart Sync, the minimum duty cycle varies as a
function of output voltage and switching frequency.
Synchronizing to a higher frequency causes greater
restrictions on the duty cycle range. For a given switching
frequency, below figure shows the operating region where the
output voltage ripple meets the electrical specifications.
Operation above a given curve may cause the output voltage
ripple to increase (up to 2×).
The maximum output current that a single module can deliver
may also be affected by the sychronization frequency. See
Figure below for load current derating when sychronizing at
frequencies greater than 330 kHz. First consult the
temperature derating graphs in the Typical Characteristics
section to determine the maximum output current based on
operating conditions. Any derating due to the SmartSync
frequency is in addition to the temperature derating.
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
29
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
29
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PMR5118UWS/B | DC-DC REG PWR SUPPLY MODULE |
| PMR8210S/B | DC-DC REG PWR SUPPLY MODULE |
| PMR8210S/C | DC-DC REG PWR SUPPLY MODULE |
| PMR8210SR/B | DC-DC REG PWR SUPPLY MODULE |
| PMR8210SR/C | DC-DC REG PWR SUPPLY MODULE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| PMR5736AL | 制造商:Panduit Corp 功能描述:BLANK METAL ROUND FACEPLATE - Bulk |
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