UCC3952-1, UCC3952-2, UCC3952-3, UCC3952-4

SingleCell LithiumIon Battery Protection IC

SLUS400D – AUGUST 2000

3

POST OFFICE BOX 655303

Supply voltage (PACK+ to BNEG)

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum forward voltage (PACK+ to PACK–)

16 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum reverse voltage (where PACK+ to BNEG = 5V)

–8 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum cell continuous charge current

3 A

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–55

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: Currents are positive into, negative out of the specified terminal. Consult Packaging Section of Data Book for thermal limitations and

considerations of packages. All voltages are referenced to GND.

otherwise stated)

state transition threshold

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

UCC3952–1

4.15

4.20

4.25

V

Normal to overcharge voltage

UCC3952–2

4.20

4.25

4.30

V

V(OV)

Normal to overcharge voltage

UCC3952–3

4.25

4.30

4.35

V

UCC3952–4

4.30

4.35

4.40

UCC3952–1

3.85

3.90

3.95

V

Overcharge to normal recovery

UCC3952–2

3.90

3.95

4.00

V

V(OVR)

Overcharge to normal recovery

voltage

UCC3952–3

3.95

4.00

4.05

V

g

UCC3952–4

4.00

4.05

4.10

V(UV)

Normal to undercharge

2.25

2.35

2.45

V

V(UVR)

Undercharge to normal recovery

2.55

2.65

2.75

V

td(OD)

Overcharge delay time

10

25

40

ms

short circuit protection

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

I(THLD)

Discharge current limit

PACK+ = 3.7 V

3.0

6.0

A

td(DLY)

Discharge current delay

PACK+ = 3.7 V,

II = 6 A

1

3.0

ms

R(RESET)

Discharge current reset resistance

PACK+ = 3.7 V

7.5

M

Ω

bias

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

IDD

Supply current

V(UV) < V(PACK) < V(OV)

5

8

µA

IDD(OV)

Operating supply current in overvoltage

V(OV) < V(PACK)

11

24

µA

I(SD)

Shutdown current

V(PACK) = 2.0 V

2.5

µA

V(min)

Minimum cell voltage when all circuits are fully

functional

1.7

V

td(OV)

Overvoltage delay time

1

2

s