BQ40Z50-R2 datasheet(33/51 Pages) TI1

部件名	BQ40Z50-R2

功能描述	1-Series, 2-Series, 3-Series, and 4-Series Li-Ion Battery Pack Manager

PDF	51 Pages

Scroll/Zoom	100%

制造商	TI1 [Texas Instruments]

网页	http://www.ti.com

标志

33 / 51 page

to Discharge FET

<20 K

VIL

bq40z50-R2

www.ti.com

SLUSCS4 – JUNE 2017

Product Folder Links: bq40z50-R2

Submit Documentation Feedback

Figure 28. System Present Pull-Down Resistor

Because the System Present signal is part of the pack connector interface to the outside world, it must be

protected from external electrostatic discharge events. The PRES pin has integrated ESD protection to 2 kV.

External protection can be added to support higher ESD protection requirements. The TPD1E10B06 single-

channel ESD protection diode (U2) can protect the input up to 30 kV, and the R8 reduces the holding current to

release the internal SCR in the event that it triggers.

Figure 29. System Present ESD and Short Protection

9.2.2.2.4

SMBus Communication

The SMBus clock and data pins have integrated high-voltage ESD protection circuits; however, adding

TPD1E10B06 ESD protection diodes (U4 and U5) and series resistors (R24 and R25) provides more robust ESD

performance.

BQ40Z50-R2 数据表(PDF) 33 Page - Texas Instruments