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参数资料
| 型号： | PKF4310 |
| 厂商： | ERICSSON |
| 英文描述： | 3?7 W DC/DC Power Modules 48 V Input Series |
| 中文描述： | 3？7瓦特DC / DC电源模块48 V输入系列 |
| 文件页数： | 20/24页 |
| 文件大小： | 1768K |
| 代理商： | PKF4310 |
20
EN/LZT 146 33 R1A (Replaces EN/LZT 137 09 R7) Ericsson Microelectronics AB, June 2000
Voltage Margin
For voltage controlled margining e.g. at final test, the following
setup can be used. By increasing the control voltage V1 to +10V the
output voltage decreases 5% of V
Oi
, and by decreasing V1 to –10V
the output voltage increases 5%.
Capacitive Load
The PKF series has no maximum limit for capacitive load on the
output. The power module may operate in current limiting mode
during start-up, affecting the ramp-up and the start-up time. For
optimum start performance we recommend maximum 100 F/A of
I
O
. Connect capacitors at the point of load for best performance.
Current Limiting Protection (I
lim
)
The output power is limited at loads above the output current limit-
ing threshold (I
lim
), specified as a minimum value.
Input and Output Impedance
Both the source impedance of the power feeding and the load imped-
ance will interact with the impedance of the DC/DC power module.
It is most important to have the ratio between L and C as low as
possible, i.e. a low characteristic impedance, both at the input and
output, as the power modules have a low energy storage capability.
Parallel Operation
Paralleling of several converters is easily accomplished by direct
connection of the output voltage terminal pins. The load regulation
characteristic is specifically designed for optimal paralleling perform-
ance. Load sharing between converters will be within ±10%. It is
recommended not to exceed P
O
= n × 0.9 × P
Omax
, where P
Omax
is
the maximum converter output power and n the number of paralleled
converters, to prevent overloading any of the converters and thereby
decreasing the reliability performance.
Delivery Package Information
Tubes
The PKF-series is delivered in tubes (designated by /A) with a length
of 500 mm (19.69 in), see fig. 6.
Specification
Material:
Max surface resistance:
Color:
Capacity:
Weight:
End stops:
Antistatic coated PVC
10
11
/
Transparent
10 power modules/tube
Typ. 60 g
Pins
Trays
SMD versions, SI, can be delivered in standard JEDEC trays (desig-
nated by /B) on request, see fig. 7. For more information, please
contact your local Ericsson sales office.
Figure 7
Figure 6
Use an electrolytic capacitor across the input or output if the source
or load inductance is larger than 10 H. Their equivalent series
resistance together with the capacitance acts as a lossless damping
filter. Suitable capacitor values are in the range of 10–100 F.
Tantalum capacitors are not recommended due to their low ESR-
value.
V
adj
, NOR (pin 8, 9)
+In (pin 18)
R
adj
Increase V
O
NOR (pin 9)
V
adj
(pin 8)
R
adj
Decrease V
O
Figure 4
Figure 5
相关PDF资料 |
PDF描述 |
|---|---|
| PKF4310PI | 3?7 W DC/DC Power Modules 48 V Input Series |
| PKF5510PI | 5-6 W DC/DC Power Modules Wide Input Series |
| PKF5510SI | 5-6 W DC/DC Power Modules Wide Input Series |
| PKF5611PI | 5-6 W DC/DC Power Modules Wide Input Series |
| PKF5611SI | 5-6 W DC/DC Power Modules Wide Input Series |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PKF4310PI | 制造商:Ericsson 功能描述: |
| PKF4310SI | 制造商:ERICSSON 制造商全称:Ericsson 功能描述:3?7 W DC/DC Power Modules 48 V Input Series |
| PKF4510 | 制造商:ERICSSON 制造商全称:Ericsson 功能描述:3?7 W DC/DC Power Modules 48 V Input Series |
| PKF4510PI | 制造商:Ericsson 功能描述: |
| PKF4510SI | 制造商:ERICSSON 功能描述: |
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