2

FN8110.1

January 3, 2008

Pinout

X3100, X3101

(28 LD TSSOP)

TOP VIEW

28

27

26

25

24

23

22

21

20

19

18

17

16

15

VCELL1

CB1

VCELL2

CB2

VCELL3

CB3

VCELL4/VSS*

CB4

VSS

VCS1

VCS2

OVT

UVT

OCT

1

2

3

4

5

6

7

8

9

10

11

12

13

14

VCC

RGC

RGO

UVP/OCP

OVP/LMON

SCK

SI

AS2

AS1

AS0

AO

RGP

CS

SO

*For X3101, Connect to GND

Ordering Information

PART

NUMBER*

PART

MARKING

(V)

TEMP. RANGE

(°C)

PACKAGE

PKG.

DWG. #

X3100V28*

X3100V

6 to 24

-20 to +70

28 Ld TSSOP

M28.173

X3100V28I

X3100V I

6 to 24

-20 to +70

28 Ld TSSOP

M28.173

X3100V28Z

(Note)

X3100VZ

6 to 24

-20 to +70

28 Ld TSSOP

(Pb-free)

M28.173

X3101V28*

X3101V

6 to 24

-20 to +70

28 Ld TSSOP

M28.173

X3101V28Z

(Note)

X3101VZ

6 to 24

-20 to +70

28 Ld TSSOP

(Pb-free)

M28.173

**Add “-T1” or “T2” suffix for tape and reel. Please refer to TB347 for details on reel specifications.

NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin

plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are

MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

Pin Descriptions

PIN

NUMBER PIN NAME

BRIEF DESCRIPTION

1

VCELL1

Battery cell 1 voltage input. This pin is used to monitor the voltage of this battery cell internally.

The voltage of an individual cell can also be monitored externally at pin AO.

The X3100 monitors 4 battery cells. The X3101 monitors 3 battery cells.

2CB1

Cell balancing FET control output 1. This output is used to switch an external FET in order to

perform cell voltage balancing control. This function can be used to adjust an individual cell voltage

(e.g. during cell charging). CB1 can be driven high (Vcc) or low (Vss) to switch the external FET

ON/OFF.

3

VCELL2

Battery cell 2 voltage. This pin is used to monitor the voltage of this battery cell internally. The voltage of an individual cell

can also be monitored externally at pin AO.

The X3100 monitors 4 battery cells. The X3101 monitors 3 battery cells.

X3100, X3101