1

SDA

14

ALERT

2

SCL

13

NC

3

VSS

12

TS

4

NC

11

NC

5

REG18

10

SRP

6

NC

9

SRN

7

REGIN

8

NC

Not to scale

3

bq34210-Q1

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SLUSCG1 – AUGUST 2017

Product Folder Links: bq34210-Q1

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Copyright © 2017, Texas Instruments Incorporated

(1)

IO = Digital input-output, AI = Analog input, P = Power connection, NC = No internal connection

5 Pin Configuration and Functions

Pin Functions

NUMBER

NAME

TYPE

DESCRIPTION

1

SDA

2

SCL

IO

3

VSS

P

Device ground

5

REG18

P

Capacitor required for the 1.8-V integrated LDO. Decouple with 2.2-µF ceramic capacitor to VSS.

7

REGIN

P

Battery voltage input and integrated LDO input. Decouple with 1-µF ceramic capacitor to VSS.

9

SRN

AI

Analog input pin connected to the internal coulomb-counter peripheral for integrating a small voltage between

SRP and SRN where the voltage at SRN will be lower than SRP during a charging event

10

SRP

AI

Analog input pin connected to the internal coulomb-counter peripheral for integrating a small voltage between

SRP and SRN where the voltage at SRP will be higher than SRN during a charging event

12

TS

AI

Pack thermistor voltage sense (use 103AT-type thermistor). Disable TS with a 10-kΩ resistor to VSS. Do not

leave floating.

14

ALERT

IO

Open drain ALERT output, requires a pullup resistor (typical 10 kΩ). Used as an input to exit SHUTDOWN mode

4, 6, 8,

11, 13

NC

NC

No internal connection

(1)

Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings

only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating

conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

6 Specifications

6.1 Absolute Maximum Ratings

Over operating free-air temperature range (unless otherwise noted)

(1)

MIN

MAX

UNIT

REGIN pin input voltage range

–0.3

6

V

SRP and SRN pins input voltage range

–0.3

0.3

V

Differential voltage across SRP and SRN. ABS(SRP – SRN)

–0.3

2

V

REG18 LDO output for capacitor only (not a supply pin)

–0.3

2

V

Open-drain IO pins (SDA, SCL)

–0.3

6

V

Open Drain Output / Control Input (ALERT)

–0.3

6

V

TS

–0.3

REG18 +

0.3

V

Operating free-air temperature range

–40

85

°C

–65

150

°C