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參數(shù)資料
| 型號(hào)： | PKF5113SI |
| 廠商： | ERICSSON POWER MODULES AB |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 11 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | 0.315 INCH HEIGHT, SMD-18 |
| 文件頁(yè)數(shù)： | 6/8頁(yè) |
| 文件大小： | 145K |
| 代理商： | PKF5113SI |
6
EN/LZT 146 195 R1A Ericsson Power Modules AB, October 2002
Figure 2
Turn-on/off Input Voltage
The power module monitors the input voltage and will turn on
and turn off at predetermined levels set by means of external
resistors.
To increase VIon a resistor should be connected between pin 11
and 17 (see g. 2).
The resistance is given by the following equation:
For VI>17.4V,
Riunom=(800-VI)/(VI-17.2) k
VI is the desired turn-on input voltage. The values are nominal
and apply when the unadjusted module turns on at 17.2V.
VI on can not be decreased.
Operating Information
Radiated EMS (Electro-Magnetic Fields)
Radiated EMS is measured according to test methods in
IEC Standard publ. 801-3. No deviation outside the VO
tolerance band will occur under the following conditions:
Frequency range
Voltage level
0.01...200 MHz
3 Vrms/m
200...1,000 MHz
3 Vrms/m
1...12 GHz
10 Vrms/m
Conducted EMS
Electro Magnetic Susceptibility is measured by injection of
electrical disturbances on the input terminals. No deviation
outside the VO tolerance band will occur under the following
conditions:
Frequency range
Voltage level
30...300 MHz
1.0 Vrms
The signal is amplitude modulated with 1 kHz/80% and
applied in both differential and common mode.
ESD
Electro Static Discharge is tested according to IEC publ. 801-
2. No destruction will occur if the following voltage levels are
applied to any of the terminal pins:
Test
Voltage level
Air discharge
±4 kV
Contact discharge
±2 kV
EFT
Electrical Fast Transients on the input terminals could affect
the output voltage regulation causing functional errors on
the Printed Board Assembly (PBA). The PKF power modules
withstand EFT levels of 0.5 kV keeping VO within the
tolerance band and
2.0 kV without destruction. Tested according to IEC publ.
801-4.
Output Ripple & Noise (VOac)
Output ripple is measured as the peak to peak voltage of the
fundamental switching frequency.
Remote Control (RC)
Turn-on or turn-off can be realized by using the RC-pin. If pin
11 is connected to pin 17 the power modules turns off. Normal
operation is achieved if pin 11 is open (NC). To ensure safe
turn-off the voltage difference between pin 11 and 17 shall be
less than 1.0 V. RC is an open collector compatible input. A
sink capacity of 1mA is needed. (see g. 1).
Fuse Considerations
To prevent excessive current from owing through the input
supply line, in the case of a short-circuit across the converter
input, an external fuse should be installed in the non-earthed
input supply line. We recommend using a fuse rated at
approximately 2 to 4 times the value calculated in the formula
below:
Refer to the fuse manufacturer for further information.
POmax
(ηmin × VImin)
Iinmax =
PKF 5113
Figure 1
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