7.13 ADC Multiplexer (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

ILKG

Input leakage current

VC1, VC2 cell balancing off, cell detach detection off,

ADC multiplexer off

1

µA

7.14 Cell Balancing Support

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

RCB

Internal cell balance

resistance

RDS(ON) for internal FET switch at 2 V < VDS < 4 V

200

Ω

7.15 Internal Temperature Sensor

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

VTEMP

Internal temperature

sensor voltage drift

VTEMPP

–1.9

–2.0

–2.1

mV/°C

VTEMPP – VTEMPN (1)

0.177

0.178

0.179

(1)

Assured by design

7.16 NTC Thermistor Measurement Support

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

RNTC(PU)

Internal pull-up

resistance

TS1

14.4

18

21.6

kΩ

RNTC(DRIFT)

Resistance drift over

temperature

TS1

–360

–280

–200 PPM/°C

7.17 High-Frequency Oscillator

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

fHFO

Operating frequency

16.78

MHz

fHFO(ERR)

Frequency error

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

–2.5%

±0.25%

2.5%

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

–3.5%

±0.25%

3.5%

tHFO(SU)

Start-up time

TA = –20°C to 85°C, Oscillator frequency within +/–3%

of nominal, CLKCTL[HFRAMP] = 1

4

ms

Oscillator frequency within +/–3% of nominal,

CLKCTL[HFRAMP] = 0

100

µs

7.18 Low-Frequency Oscillator

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

Operating frequency

262.144

kHz

BQ28Z610-R1

SLUSE07B – JANUARY 2020 – REVISED JANUARY 2022

www.ti.com

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