STBC21FTR datasheet(11/54 Pages) STMICROELECTRONICS

Teilenummer	STBC21FTR

Bauteilbeschribung	LI battery charger with thermal regulation

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Hersteller	STMICROELECTRONICS [STMicroelectronics]

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11 / 54 page

STBC21

Electrical characteristics

Doc ID 023256 Rev 1

11/54

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

VCC_OK

Charging start threshold –

VCC undervoltage alarm (VCC_UVLO)

±5%

2.66

2.8

2.94

V

VCC_ASD

VCC-VBAT threshold

125

mV

VCC_OVP

VCC overvoltage protection

8.55

9.0

9.45

V

IODROP_QP Quasi-pulse VCC-VBAT drop

IBAT=100 mA, IBAT=1.0A

0.35

V

V0V_HD

0V-charge threshold

±5%

1

V

VPRE_CH

Pre-charge to fast-charge voltage

threshold

VCC = 5.0 V

3.0

V

ΔV

FLT

Float voltage range tolerance

VFLT = 4.2 V, IBAT =1 mA

TJ = -10 °C to 85 °C

-0.7

0.7

%

VFLT_OVP

Float voltage OVP

5.0 V < VCC < 9.0 V

TBAT = 0 °C to 60 °C

IBAT = 1.0 mA

TIMER-3 = 60 min.

4.21

4.23

4.25

V

VCC_QP

Quasi-pulse minimum supply voltage

in pre-charge phase

3.1

V

VBAT_QP

Minimum battery voltage to start

quasi-pulse mode

2.8

V

VRECH

Battery recharge threshold voltage

5.0 V < VCC < 9.0 V

3.9

V

VTEMP_UN

NTC voltage threshold

for battery unconnected

±2%

2.425

V

VTEMP_OT

NTC voltage threshold

for battery overtemperature

±2%

0.505

V

VREF

Reference voltage for NTC /

LED drive voltage

±5%

2.9

V

RDS-ON

Power MOS saturation resistance

0 °C < TJ < 85 °C

300

m

Ω

TRECH

Battery recharge deglitching time

VCC = 5.0 V

100

ms

TFULL

Full charge detection deglitching time

(after termination)

VCC = 5.0 V – TIMER-3

= 0

100

ms

THV

Battery overvoltage detection

deglitching time

VCC = 5.0 V

100

ms

THl

Overcurrent detection deglitching

time

VCC = 5.0 V

100

ms

THOLD_OFF

Deglitching time on VCC to start

charging (VCC=3.0 V)

VBAT = 2.8 V

10

ms

TBAT_HOT

Battery hot detection deglitching time VCC = 5.0 V

10

ms

TBAT_CON

Battery connection detection

deglitching time

VCC = 5.0 V

400

ms

TBAT_TLO

Battery TLO temperature detection

deglitching time

VCC = 5.0 V

100

ms

Table 6.

Electrical characteristics (DC) (continued)

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STBC21FTR Datenblatt(PDF) 11 Page - STMicroelectronics

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