BQ29330 Datasheet, PDF (2/26 Pages) Texas Instruments – 2-,3-,AND 4-CELL LITHIUM-ION OR LITHIUM-POLYMER BATTERY PROTECTION AFE

bq29330
SLUS673A – SEPTEMBER 2005 – REVISED DECEMBER 2005
www.ti.com
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⁾
T_A
–40°C to 110°C
TSSOP(DBT) ⁽²⁾
bq29330DBT
PACKAGE
QFN(RHB) ⁽³⁾
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)
CELL-
1
CELL+
2
REG
3
VSS 4
XRST
5
SRN
6
SRP ⁷
VC5
8
VC4
9
VC3 10
VC2 ¹¹
VC1 ¹²
BAT ¹³
CHG ¹⁴
NC ¹⁵
30 XALERT
29 _SDATA
28 _SCLK
27 NC
26 _WDI
25 TOUT
24 _LEDOUT
23 _VSS
22 PMS
21 _GPOD
20 ZVCHG
19 VCC
18 _NC
17 PACK
16 _DSG
XRST
SRN
SRP
VC5
VC4
VC3
VC2
VC1
32 31 30 29 28 27 26 25
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9 10 11 12 13 14 15 16
NC
WDI
TOUT
LEDOUT
VSS
PMS
GPON
ZVCHG
2