ISL6112INZA-T【PDF 26/30 页】IC PWR CNTRLR DUAL SLT 48-TQFP

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ISL6112

FN6456.1

August 25, 2011

Using the ISL6112EVAL1Z

Platform

The primary ISL6112 evaluation platform is shown

photographically in Figure36 and schematically on page28. This

evaluation board highlights a PCB layout that confines all

necessary active and passive components in an area measuring

12mmx55mm. This width is smaller than the specified

PCI-Express socket-to-socket spacing, allowing for intimate

co-location of the load power control and the load itself.

Around the central highlighted layout are numerous labeled test

points and configuration jumpers where there are node names

such as AO(L/R

). The pin name outside the parentheses relates

to the ISL6112. The ISL6113 and ISL6114 also use this

evaluation platform, as all three parts have a common pinout for

the common pin functions. The pin names in parentheses are for

the ISL6113 and ISL6114. The specific evaluation board ordered

and received will reflect the part number in the area below the

Intersil logo, either by label or silk-screened lettering. For pins

that are not common across the ISL6112, ISL6113, and

ISL6114, there is a matrix detailing the differences in the bottom

left corner.

The ISL6112EVAL1Z is provided in HPI mode, with the clock

shorted to ground.

The evaluation platform is to be biased through the six banana

jacks: turn on the VSTBY supply first, and then the other MAIN

supplies, in any order. With appropriate signaling to the AUXEN

and ON inputs, the user should see turn-on waveforms. External

current loading must be added to demonstrate OC and WOC

response performance.

The SCL and SDA inputs in the top right quadrant of the

evaluation board can be used to demonstrate SMI operation. The

boards default address is configured as 000 via three jumpers

located on the right side of the board and labeled A0, A1, and A2.

The HPI inputs must be disabled as shown in Figure 27. If

additional software is needed to configure and control, there is a

LabView based program available from Intersil for demonstration

of the ISL6112 functionality. User lab test hardware and

instrument support is not available.

CAUTION: The ISL6112EVAL1Z gets very hot to the touch after

operating for a few minutes. The hottest areas are marked on the

evaluation board.

FIGURE 36. ISL6112EVAL1Z BOARD PHOTO

CAUTION HOT

SDA

SCL

GND

SMI

ADDRESS

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