AWG G3 PAD FOR PS3 Especificações descarregar pdf (Página 142)

6 Device PowerSupply General Purpose Power Supply (GPDPS)

142 System Reference, January 2001

An essential component of the GPDPS is the load capac-

itor that needs to be added at the DPS pin. This load capac-

itor ensures that the GPDPS operation is stable under all

load conditions. Its size depends on the performance

range set.

NOTE You must not operate the GPDPS without an adequate

load capacitor. The GPDPS will only provide stable opera-

tion with an adequate blocking capacitor.

The following performance ranges are available:

Table 27 GPDPS Performance Ranges

In the column C

load

, the load capacitance needed to ensure

stable operation of the GPDPS in the respective perfor-

mance range is specified. Never operate the GPDPS with

less than the load capacitance specified in this table. You

can, however, increase the load capacitance to achieve a

higher voltage supply level stability.

Basically, ranges 2, 3 and 4 can all drive current swings up

to 8A, current range 1 can drive current swings up to 3A.

However, each performance range covers a specific

current swing range best. Depending on your application

needs (current swing of DUT, voltage supply stability

needs), you need to find an appropriate combination of

performance range and load capacitance. Read through

the section “Dynamic Load Performance Consider-

ations” on page 145 to find a suitable setup.

Range Min. Cload (required for stable operation)

1100nF

24µF

320µF

4100µF

Range 1 max. current: 3 A DC, all other ranges 8 A DC

1 2 ... 137 138 139 140 141 142 143 144 145 146 147 ... 284 285

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AWG G3 PAD FOR PS3 Especificações Página 142