6.8 Electrical Characteristics: Low-Frequency Oscillator

TA = –40°C to 85°C, 2.4 V < REG25 < 2.6 V; Typical Values at TA = 25°C and REG25 = 2.5 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX UNIT

f(LOSC)

Operating frequency

32.768

kHz

f(LEIO)

Frequency error(1) (2)

TA = 0°C to 60°C

–1.5%

0.25%

1.5%

TA = –20°C to 70°C

–2.5%

0.25%

2.5%

TA = –40°C to 85°C

–4%

0.25%

4%

t(LSXO)

Start-up time(3)

500

μs

(1)

The frequency drift is included and measured from the trimmed frequency at VCC = 2.5 V, TA = 25°C.

(2)

The frequency error is measured from 32.768 kHz.

(3)

The startup time is defined as the time it takes for the oscillator output frequency to be ±3%.

6.9 Electrical Characteristics: High-Frequency Oscillator

TA = –40°C to 85°C, 2.4 V < REG25 < 2.6 V; Typical Values at TA = 25°C and REG25 = 2.5 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX UNIT

f(OSC)

Operating frequency

8.389

MHz

f(EIO)

Frequency error(1) (2)

TA = 0°C to 60°C

–2%

0.38%

2%

TA = –20°C to 70°C

–3%

0.38%

3%

TA = –40°C to 85°C

–4.5%

0.38%

4.5%

t(SXO)

Start-up time(2)

2.5

5

ms

(1)

The frequency error is measured from 2.097 MHz.

(2)

The startup time is defined as the time it takes for the oscillator output frequency to be ±3%.

6.10 Electrical Characteristics: Integrating ADC (Coulomb Counter) Characteristics

TA = –40°C to 85°C, 2.4 V < REG25 < 2.6 V; Typical Values at TA = 25°C and REG25 = 2.5 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX UNIT

V(SR)

Input voltage range, V(SRN) and V(SRP)

V(SR) = V(SRN) – V(SRP)

–0.125

0.125

V

tSR_CONV

Conversion time

Single conversion

1

s

Resolution

14

15

bits

VOS(SR)

Input offset

10

µV

INL

Integral nonlinearity error

±0.007%

±0.034% FSR(2)

ZIN(SR)

Effective input resistance(1)

2.5

MΩ

Ilkg(SR)

Input leakage current(1)

0.3

µA

(1)

Specified by design. Not tested in production.

(2)

Full-scale reference

6.11 Electrical Characteristics: ADC (Temperature and Cell Measurement) Characteristics

TA = –40°C to 85°C, 2.4 V < REG25 < 2.6 V; Typical Values at TA = 25°C and REG25 = 2.5 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX UNIT

VIN(ADC)

Input voltage range

0.05

1

V

tADC_CONV

Conversion time

125

ms

Resolution

14

15

bits

VOS(ADC)

Input offset

1

mV

ZADC1

Effective input resistance (TS)(1)

8

MΩ

ZADC2

Effective input resistance (BAT)(1)

BQ34Z100-R2 not measuring cell

voltage

8

MΩ

BQ34Z100-R2 measuring cell

voltage

100

KΩ

BQ34Z100-R2

SLUSF37 – DECEMBER 2022

www.ti.com

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