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bq78350-R1

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SLUSCD0B – AUGUST 2015 – REVISED NOVEMBER 2018

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(1)

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

report, SPRA953.

7.4 Thermal Information

THERMAL METRIC(1)

bq78350-R1

UNIT

TSSOP (DBT)

30 PINS

RθJA, High K

Junction-to-ambient thermal resistance

81.4

°C/W

RθJC(top)

Junction-to-case(top) thermal resistance

16.2

RθJB

Junction-to-board thermal resistance

34.1

ψJT

Junction-to-top characterization parameter

0.4

ψJB

Junction-to-board characterization parameter

33.6

RθJC(bottom)

Junction-to-case(bottom) thermal resistance

n/a

(1)

The actual current consumption of this mode fluctuates during operation over a 1-s period. The value shown is an average using the

default data flash configuration.

(2)

The actual current consumption of this mode fluctuates during operation over a user-configurable period. The value shown is an average

using the default data flash configuration.

7.5 Electrical Characteristics: Supply Current

VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

ICC

Operating mode current

No flash programming

650(1)

μA

I(SLEEP)

Low-power storage mode current

SLEEP mode

300(2)

μA

I(SHUTDOWN)

Low-power SHUTDOWN mode current

SHUTDOWN mode

0.1

1

μA

7.6 Electrical Characteristics: I/O

VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOL

Output voltage low SMBC, SMBD,

SDATA, SCLK, SAFE, ADREN, VEN,

GPIO A, GPIO B, PWRM

IOL = 0.5 mA

0.4

V

Output voltage low LED1, LED2, LED3,

LED4, LED5

IOL = 3 mA

0.4

VOH

Output voltage high SMBC, SMBD,

SDATA, SCLK, SAFE, ADREN, VEN,

GPIO A, GPIO B, PWRM

IOH = –1 mA

VCC – 0.5

V

VIL

Input voltage low SMBC, SMBD, SDATA,

SCLK, ALERT, DISP, SMBA, GPIO A,

GPIO B, PRES, KEYIN

–0.3

0.8

V

VIH

Input voltage high SMBC, SMBD,

SDATA, SCLK, ALERT, SMBA, GPIO A,

GPIO B

2

6

V

Input voltage high DISP, PRES, KEYIN

2

VCC + 0.3

V

CIN

Input capacitance

5

pF

ILKG

Input leakage current

1

µA

7.7 Electrical Characteristics: ADC

VCC = 2.4 V to 2.6 V, TA = –40°C to 85°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input voltage range

BAT, VAUX

–0.2

1

V

Conversion time

16

ms

Resolution (no missing codes)

16

bits

Effective resolution

13

14

bits