BQ2000 Datasheet, PDF (15/18 Pages) Texas Instruments – Programmable Multi-Chemistry Fast-Charge Management IC

bq2000
Data Sheet Revision History
Change No. Page No.
Description
1
4
MTO equation
1
6
Trickle-pulse width
equation
1
7
Figure 7
1
10
VTCO, VHTF, VLTF
1
11
RMTO, CMTO
2
8
VLBAT
3
1, 13 Package option
3
3
State diagram
3
8
Schematic updated
3
11
VTSO, VHTF,VLTF
3
7
Top-off charge
4
7
Figure 7
4
12
VOH
4
12
VOL
5
3
Figure 2
5
3
Figure 2
6
14
Change package
5
15
Change ordering
information
Nature of Change
Was: MTO = R ∗ C ∗ 71,976
Is: MTO = RMTO ∗ CMTO ∗ 35,988
Replaced equation with Figure 6
Schematic updated
Tolerance updated
Values updated
Corrected values in Tables 2 and 3
Added TSSOP
Added
Tolerance updated
Updated requirement for enabling top-off
Updated tolerance on the curve
Was: Minimum VOH = VCC - 0.2 at IOH = 20mA
Is: Minimum VOH = VCC - 0.6 at IOH = 10mA
Was: IOH = 20mA
Is: IOH = 10mA
Battery voltage detail was: (checked at all times)
Is: Voltage regulation checked constantly. PVD checked at rate
of MTO/64.
Battery temperature detail was: (checked at all times)
Is: (checked 1,750 times per second)
Was: 8-Pin TSSOP ∼ TS Package Suffix
Is: 8-Pin PSOP
Was: TS = 8-pin TSSOP
Is: PW = 8-pin TSSOP
Note:
Change 1 = Jan. 1999 B changes to Final from Sept. 1998 Preliminary data sheet.
Change 2 = Mar. 1999 C changes from Jan. 1999 B.
Change 3 = May 1999 D changes from Mar. 1999 C.
Change 4 = February 2000 E changes from May 1999 D.
Change 5 = February 2001 F changes from February 2000 E
15