BQ27Z561-R1 datasheet(18/26 Pages) TI1

tên linh kiện	BQ27Z561-R1

Giải thích chi tiết về linh kiện	Impedance Track battery gas gauge solution for 1-series cell li-ion battery packs

PDF	26 Pages

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nhà sản xuất	TI1 [Texas Instruments]

Trang chủ	http://www.ti.com

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18 / 26 page

SDA/

HDQ

SCL

PULS

VSS

BAT_

SNS

BAT

INT

SRN

SRP

PACK -

BAT -

RSENSE

Battery

BAT_SNS at

Battery terminal

No contact to NU

(BAT_SNS trace on

bottom layer)

RSRN

RSRP

BAT +

PACK +

Weld

Tab

Weld

Tab

Tab +

Tab -

BQ27Z561-R1

SLUSDH5 – MARCH 2019

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Product Folder Links: BQ27Z561-R1

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Layout Guidelines (continued)

•

The BQ27Z561-R1 has an internal LDO that is internally compensated and does not require an external

decoupling capacitor.

•

The I2C clock and data pins have integrated high-voltage ESD protection circuits; however, adding a Zener

diode and series resistor provides more robust ESD performance. The I2C clock and data lines have an

internal pull-down. When the gas gauge senses that both lines are low (such as during removal of the pack),

the device performs auto-offset calibration and then goes into SLEEP mode to conserve power.

11.2 Layout Example

Figure 10. BQ27Z561-R1 Key Trace Board Layout

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