Not Recommended for New Designs

bq28550-R1

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SLUSAS4A – OCTOBER 2012 – REVISED SEPTEMBER 2014

Recommended Operating Conditions (continued)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

GPIO, SDA and SCL

–0.3

0.6

V

Input voltage low

GPIO, SDA and SCL

1.2

6

V

Input voltage high

GPIO, SDA output

0

0.4

V

voltage low

Capacitance for each

SDA and SCL input capacitance

10

pF

I/O pin

Power Up

250

ms

Communication Delay

Input voltage range

0.25

V

(SRP, SRN)

6.4 Thermal Information

bq28550-R1

SON

UNIT

12 PINS

186.4

90.4

110.7

°C/W

96.7

90

n/a

(1)

For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

(2)

The junction-to-ambient thermal resistance under natural convection is obtained in a simulation on a JEDEC-standard, high-K board, as

specified in JESD51-7, in an environment described in JESD51-2a.

(3)

The junction-to-case (top) thermal resistance is obtained by simulating a cold plate test on the package top. No specific JEDEC-

standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.

(4)

The junction-to-board thermal resistance is obtained by simulating in an environment with a ring cold plate fixture to control the PCB

temperature, as described in JESD51-8.

(5)

The junction-to-top characterization parameter,

(6)

The junction-to-board characterization parameter,

(7)

The junction-to-case (bottom) thermal resistance is obtained by simulating a cold plate test on the exposed (power) pad. No specific

JEDEC standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.

Spacer

6.5 Electrical Characteristics: Battery Protection

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Minimum operating

1.2

V

voltage for 0 V charging

Overcurrent release

30

50

100

k

Ω

resistance

DS pin pull-down

6.5

13.0

26.0

k

Ω

resistance

COUT Low Level Output

voltage (referenced to

0.4

0.5

V

VM)

COUT High Level Output

voltage (referenced to

3.4

3.7

V

VM)

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