ACT8945A datasheet(20/46 Pages) QORVO

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Data Sheet Rev. G, January 2020 | Subject to change without notice

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ACT8945A

Advanced PMU for Atmel SAMA5Dx Series & SAM9 Series Processors

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TM CHARGER ELECTRICAL CHARACTERISTICS CONT’D

(VCHGIN = 5.0V, TA = 25°C, unless otherwise specified.)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

CHARGER

BAT Reverse Leakage Current

VCHGIN = 0V, VBAT = 4.2V, IVSYS = 0mA

µA

BAT to VSYS On-Resistance

mΩ

ISET Pin Voltage

Fast Charge

1.2

Precondition

0.13

Charge Termination Voltage VTERM

TA = -20°C to 70°C

4.179

4.2

4.221

TA = -40°C to 85°C

4.170

4.2

4.230

Charge Current

VBAT = 3.8V

RISET = 6.8K

ACIN = VSYS, CHGLEV = VSYS

-10%

ICHG1

+10%

ACIN = VSYS, CHGLEV = GA

-10%

ICHG/5

+10%

ACIN = GA, CHGLEV = VSYS

400

450

500

ACIN = GA, CHGLEV = GA

100

Precondition Charge Current

VBAT = 2.7V

RISET = 6.8K

ACIN = VSYS, CHGLEV = VSYS

10% ICHG

ACIN = VSYS, CHGLEV = GA

10% ICHG

ACIN = GA, CHGLEV = VSYS

ACIN = GA, CHGLEV = GA

Precondition Threshold Voltage

VBAT Voltage Rising

2.75

2.85

3.0

Precondition Threshold Hysteresis VBAT Voltage Falling

150

END-OF-CHARGE Current

Threshold

VBAT = 4.15V,

ACIN = VSYS, CHGLEV = VSYS

10% ICHG

ACIN = VSYS, CHGLEV = GA

10% ICHG

ACIN = GA, CHGLEV = VSYS

ACIN = GA, CHGLEV = GA

Charge Restart Threshold

VTERM - VBAT, VBAT Falling

190

205

220

Precondition Safety Timer

PRETIMO[ ] = 10

min

Total Safety Timer

TOTTIMO[ ] = 10

Thermal Regulation Threshold

100

°C

: RISET (kΩ) = 2336 × (1V/ICHG (mA)) - 0.205

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