UCC3911DP-3 datasheet(3/12 Pages) TI

Part #	UCC3911DP-3

Description	Lithium-Ion Battery Protector

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Manufacturer	TI [Texas Instruments]

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UCC3911-1, UCC3911-2

UCC3911-3, UCC3911-4

SLUS429B– FEBRUARY 2000 – REVISED NOVEMBER 2002

3

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electrical characteristics –20

°C < TA = 70°C, all voltages are referenced to B0, VB2 = 7.2 V, TA = TJ

(unless otherwise noted)

state transition threshold

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

VOV

Overvoltage threshold

UCC3911 1

4.15

4.20

4.25

VOVR

Overvoltage threshold recovery

UCC3911–1

3.60

3.70

3.80

VOV

Overvoltage threshold

UCC3911 2

4.20

4.25

4.30

VOVR

Overvoltage threshold recovery

UCC3911–2

3.65

3.75

3.85

VOV

Overvoltage threshold

UCC3911 3

4.25

4.30

4.35

V

VOVR

Overvoltage threshold recovery

UCC3911–3

3.70

3.80

3.90

V

VOV

Overvoltage threshold

UCC3911 4

4.30

4.35

4.40

VOVR

Overvoltage threshold recovery

UCC3911–4

3.75

3.85

3.95

VUV

Undervoltage threshold

2.42

2.50

2.58

VUVR

Undervoltage threshold recovery

2.90

3.00

3.10

B0-to-GND switch

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

(Normal) IGND = 2 A

–320

–160

(Normal) IGND = –2 A

160

320

Vto V

(Overcharge) IGND = 1 mA

–300

–150

mV

VB0 to VGND

(Overcharge) IGND = 2 A

–500

–250

mV

(Undercharge) IGND = –1 mA

150

300

(Undercharge) IGND = –2 A

250

500

I

(Overcharge) VGND = –5 V

–5

A

IGND

(Undercharge) VGND = 5 V

0

30

µA

input bias current

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

I

Nominal

18

25

IB2

In sleep mode

3.5

µA

IB1

–1

0

1

µA

short circuit protection

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

ISC

Current threshold

3.5

5.25

7

A

tDLY

Delay time

CDLY = OPEN,

See Note 1

100

µs

timing delays

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

FINTERNAL Internal clock frequency

See Note 2

7.5

kHz

tDLY – OV

Delay time to register overcharge

0.6

2.0

5.0

ms

tDLY – UV

Delay time to register undercharge

0.3

1.0

3.5

ms

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