BQ40Z50-R2 datasheet(9/55 Pages) TI2

9 / 55 page

7.3 Recommended Operating Conditions (continued)

Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°C to 85°C and VCC =

2.2 V to 26 V (unless otherwise noted)

MIN

NOM

MAX

UNIT

VIN

Input voltage range

PACK, SMBC, SMBD, PRES, BTP_IN, DISP

TS1, TS2, TS3, TS4

VREG

PTC, PTCEN, LEDCNTLA, LEDCNTLB, LEDCNTLC

VBAT

SRP, SRN

–0.2

0.2

VC4

VVC3

VVC3 + 5

VC3

VVC2

VVC2 + 5

VC2

VVC1

VVC1 + 5

VC1

VVSS

VVSS + 5

Output voltage

range

CHG, DSG, PCHG, FUSE

CPBI

External PBI

capacitor

2.2

µF

TOPR

Operating

temperature

–40

°C

7.4 Thermal Information

THERMAL METRIC(1)

BQ40Z50-R2

UNIT

RSM (QFN)

32 PINS

RθJA, High K

Junction-to-ambient thermal resistance

47.4

°C/W

RθJC(top)

Junction-to-case(top) thermal resistance

40.3

°C/W

RθJB

Junction-to-board thermal resistance

14.7

°C/W

ψJT

Junction-to-top characterization parameter

0.8

°C/W

ψJB

Junction-to-board characterization parameter

14.4

°C/W

RθJC(bottom)

Junction-to-case(bottom) thermal resistance

3.8

°C/W

(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 = 14.4 V, Min/Max values stated where TA = –40°C to 85°C and VCC =

2.2 V to 20 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

INORMAL

NORMAL mode

CHG on. DSG on, no Flash write

336

µA

ISLEEP

SLEEP mode

CHG off, DSG on, no SBS communication

µA

CHG off, DSG off, no SBS communication

ISHUTDOWN

SHUTDOWN mode

1.6

µA

7.6 Power Supply Control

Typical values stated where TA = 25°C and VCC = 14.4 V, Min/Max values stated where TA = –40°C to 85°C and VCC =

2.2 V to 26 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VSWITCHOVER–

BAT to VCC

switchover voltage

VBAT < VSWITCHOVER–

1.95

2.1

2.2

VSWITCHOVER+

VCC to BAT

switchover voltage

VBAT > VSWITCHOVER– + VHYS

2.9

3.1

3.25

www.ti.com

BQ40Z50-R2

SLUSCS4C – JUNE 2017 – REVISED APRIL 2021

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