7.4 Thermal Information

THERMAL METRIC(1)

BQ28Z610-R1

UNIT

DRZ

12 PINS

RθJA, High K

Junction-to-ambient thermal resistance

186.4

°C/W

RθJC(top)

Junction-to-case(top) thermal resistance

90.4

RθJB

Junction-to-board thermal resistance

110.7

ψJT

Junction-to-top characterization parameter

96.7

ψJB

Junction-to-board characterization parameter

90

RθJC(bottom)

Junction-to-case(bottom) thermal resistance

n/a

(1)

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

Report (SPRA953).

7.5 Supply Current

Typical values stated where TA = 25°C and VCC = 7.2 V, Min/Max values stated where TA = –40°C to 85°C and VCC = 2.2 V

to 7.6 V (unless otherwise noted)

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

INORMAL (1)

NORMAL mode

CHG = ON, DSG = ON, No Flash Write

250

µA

ISLEEP (1)

SLEEP mode

CHG = OFF, DSG = OFF, No Communication on

Bus

100

ISHUTDOWN

SHUTDOWN mode

0.5

2

µA

(1)

Dependent on the use of the correct firmware (FW) configuration

7.6 Power Supply Control

Typical values stated where TA = 25°C and VCC = 7.2 V, Min/Max values stated where TA = –40°C to 85°C and VCC = 2.2 V

to 7.6 V (unless otherwise noted)

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

VSWITCHOVER–

VC2 to PACK

switchover voltage

VVC2 < VSWITCHOVER–

2.0

2.1

2.2

V

VSWITCHOVER+

PACK to VC2

switchover voltage

VVC2 > VSWITCHOVER– + VHYS

3.0

3.1

3.2

V

VHYS

Switchover voltage

hysteresis

VSWITCHOVER+ – VSWITCHOVER–

1000

mV

ILKG

Input Leakage

current

VC2 pin, VC2 = 0 V, PACK = 25 V

1

µA

PACK pin, VC2 = 25 V, PACK = 0 V

1

VC2 and PACK pins, VC2 = 0 V, PACK = 0 V,

PBI = 25 V

1

RPACK(PD)

Internal pulldown

resistance

PACK

30

40

50

kΩ

7.7 Low-Voltage General Purpose I/O, TS1

Typical values stated where TA = 25°C and VCC = 7.2 V, Min/Max values stated where TA = –40°C to 85°C and VCC = 2.2 V

to 7.6 V (unless otherwise noted)

PARAMETER

TEST CONDITION

MIN

TYP

MAX

UNIT

VIH

High-level input

0.65 x VREG

V

VIL

Low-level input

0.35 x VREG

V

VOH

Output voltage high IOH = –1.0 mA

0.75 x VREG

V

VOL

Output voltage low

IOL = 1.0 mA

0.2 x VREG

V

CIN

Input capacitance

5

pF

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BQ28Z610-R1

SLUSE07B – JANUARY 2020 – REVISED JANUARY 2022

Copyright © 2022 Texas Instruments Incorporated

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