PACK -

PACK +

Via connects between two layers

VC2

VC1

VC1_CB

OUT

VDD

GND

1

2

3

5

7

8

CD

4

CB_EN

6

PWRPAD

Additional circuitry required based on usage of the OUT pin

1

1

15

bq29200, bq29209

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SLUSA52C – SEPTEMBER 2010 – REVISED MARCH 2016

Product Folder Links: bq29200 bq29209

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11 Layout

11.1 Layout Guidelines

The following are the recommended layout guidelines:

1. Ensure the input filters to the VC1 and VC2 pins are as close to the IC as possible to improve noise

immunity.

2. If the OUT pin is used to control a high current path, for example: to blow a chemical fuse, then care should

be taken to ensure the high current path creates minimal interference of the bq2920x voltage sense inputs.

3. The input RC filter on the VDD pin should be close to the terminal of the IC.

11.2 Layout Example