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 I2C-compatible interface. The maximum bypass current
is set via an external series resistor and internal FET on resistance (typ. 400 Ω).
ORDERING INFORMATION(1)
PACKAGE
TA
–40°C to 110°C
TSSOP(DBT)(2)
QFN(RHB)(3)
bq29330DBT
bq29330RHB
(1) 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 www.ti.com.
(2) The bq29330 can be ordered in tape and reel by adding the suffix R to the orderable part number, i.e., bq29330DBTR, bq29330RHBR.
(3) 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)
1
2
3
30
29
28
XALERT
CELL-
CELL+
REG
SDATA
SCLK
4
32 31 30 29 28 27 26 25
VSS
XRST
SRN
27
NC
24
23
22
XRST
NC
1
2
3
4
5
6
7
5
26
WDI
WDI
TOUT
SRN
SRP
VC5
VC4
VC3
VC2
VC1
25
24
23
22
21
6
TOUT
7
LEDOUT
VSS
SRP
VC5
VC4
21
LEDOUT
VSS
8
PMS
9
20
10
11
12
VC3
VC2
VC1
BAT
CHG
NC
19
GPOD
ZVCHG
VCC
PMS
20
19
18
GPON
18
8
17
ZVCHG
13
9
10 11 12 13 14 15 16
NC
14
17
PACK
15
16
DSG
2
TI [ TEXAS INSTRUMENTS ]
