7.18 Low-Frequency Oscillator (continued)

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

fLFO(LP)

Operating frequency in

low power mode

247

kHz

fLFO(ERR)

Frequency error

TA = –20°C to 70°C, includes frequency drift

–1.5%

±0.25%

1.5%

TA = –40°C to 85°C, includes frequency drift

–2.5%

±0.25%

2.5%

fLFO(LPERR)

Frequency error in low

power mode

–5%

5%

fLFO(FAIL)

Failure detection

frequency

30

80

100

kHz

7.19 Voltage Reference 1

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

VREF1

Internal reference

voltage

TA = 25°C, after trim

1.215

1.220

1.225

V

VREF1(DRIFT)

Internal reference

voltage drift

TA = 0°C to 60°C, after trim

±50

PPM/°C

TA = –40°C to 85°C, after trim

±80

7.20 Voltage Reference 2

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

VREF2

Internal reference

voltage

TA = 25°C, after trim

1.215

1.220

1.225

V

VREF2(DRIFT)

Internal reference

voltage drift

TA = 0°C to 60°C, after trim

±50

PPM/°C

TA = –40°C to 85°C, after trim

±80

7.21 Instruction Flash

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

Data retention

10

Years

Flash programming

write cycles

1000

Cycles

tPROGWORD

Word programming

time

TA = –40°C to 85°C

40

µs

tMASSERASE Mass-erase time

TA = –40°C to 85°C

40

ms

tPAGEERASE Page-erase time

TA = –40°C to 85°C

40

ms

IFLASHREAD Flash-read current

TA = –40°C to 85°C

2

mA

IFLASHWRITE Flash-write current

TA = –40°C to 85°C

5

mA

IFLASHERASE Flash-erase current

TA = –40°C to 85°C

15

mA

www.ti.com

BQ28Z610-R1

SLUSE07B – JANUARY 2020 – REVISED JANUARY 2022

Copyright © 2022 Texas Instruments Incorporated

Submit Document Feedback

9

Product Folder Links: BQ28Z610-R1