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參數(shù)資料
| 型號： | PKF4111API |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 10 W DC-DC REG PWR SUPPLY MODULE |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 1528K |
| 代理商： | PKF4111API |
11
EN/LZT 146 30 R2A Ericsson Microelectronics AB, October 2000
EMC Specifications
The PKF power module is mounted on a double sided Printed circuit
Board (PB) with ground plane during EMC measurements.
The fundamental switching frequency is 510 kHz ±5% @
IO = (0.1…1.0) × IOmax.
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.
Operating Information
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
TTL open collector compatible output with a sink capacity >300
mA
(see fig. 1).
Conducted EMI (input teminals)
PKF series typical conducted EMI performance
Test set up
Frequency range
Voltage level
0.15...300 MHz
1.0 Vrms
The signal is amplitude modulated with 1 kHz/80% and applied in
both differential and common mode.
Conducted EMS
Electro Magnetic Susceptibility is measured by injection of elec-
trical disturbances on the input terminals. No deviation outside
the VO tolerance band will occur under the following conditions:
External Filter (class B)
Required external input filter in order to meet class B in EN 55022,
CISPR 22 and FCC part 15J.
The low ESR is critical for the result.
Figure 1
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
Fuse Considerations
To prevent excessive current from flowing through the input supply
line, in the case of a short-circuit across the converter input, an exter-
nal 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
(
hmin × VImin)
Iinmax =
Test
Voltage level
Air discharge
±4 kV
Contact discharge
±2 kV
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:
Output Ripple & Noise (VOac)
Output ripple is measured as the peak to peak voltage of the funda-
mental switching frequency.
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