bq29330
www.ti.com
SLUS673A – SEPTEMBER 2005 – REVISED DECEMBER 2005
DESCRIPTION (CONTINUED)
The bq29330 provides safety protection for overload, short circuit in charge, and short circuit in discharge
conditions and can also provide cell overvoltage, battery overvoltage and battery undervoltage protection with the
battery management host. In overload, short circuit in charge and short circuit in discharge conditions, the
bq29330 turns off the FET drive autonomously, depending on the internal configuration setting. The
communications interface allows the host to observe and control the status of the bq29330, enable cell
balancing, enter different power modes, set current protection levels, and set the blanking delay times.
Cell balancing of each cell can be performed via a cell bypass path integrated into the bq29330, which can be
enabled via the internal control register accessible via the I
2
C-compatible interface. The maximum bypass current
is set via an external series resistor and internal FET on resistance (typ. 400
Ω).
ORDERING INFORMATION
(1)
T
A
–40°C to 110°C
(1)
(2)
(3)
PACKAGE
TSSOP(DBT)
(2)
bq29330DBT
QFN(RHB)
(3)
bq29330RHB
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
Web site at
The bq29330 can be ordered in tape and reel by adding the suffix R to the orderable part number, i.e., bq29330DBTR, bq29330RHBR.
PRELIMINARY PACKAGE OPTION:
The QFN package is also made available in mini reel; add suffix T to the orderable number, i.e.,
bq29330RHBT
PACKAGE OPTION PIN DIAGRAMS
TSSOP PACKAGE
(TOP VIEW)
QFN PACKAGE
(TOP VIEW)
XALERT
CELL+
REG
VSS
XRST
SRN
SRP
VC5
VC4
VC3
VC2
VC1
BAT
CHG
NC
2
3
4
5
6
7
8
9
10
11
12
13
14
15
29
28
27
26
25
24
23
22
21
20
19
18
17
16
SDATA
SCLK
NC
WDI
TOUT
LEDOUT
VSS
PMS
GPOD
ZVCHG
VCC
NC
PACK
DSG
32 31 30 29 28 27 26 25
REG
VSS
CELL-
NC
SCLK
1
30
XALERT
SDATA
CELL+
CELL-
XRST
SRN
SRP
VC5
VC4
VC3
VC2
VC1
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
16
24
23
22
21
20
19
18
17
NC
WDI
TOUT
LEDOUT
VSS
PMS
GPON
ZVCHG
CHG
DSG
NC
NC
NC
2
PACK
VCC
BAT
TI [ TEXAS INSTRUMENTS ]
