Datasheet

bq2000
SLUS138D –JANUARY 2008–REVISED DECEMBER 2009 www.ti.com
REVISION HISTORY
Changes from Revision September 1998 (*) to Revision 1 Page
• Changed the device status From: Preliminary To: Final ....................................................................................................... 1
• Changed the DC THRESHOLDS - V
TCO
, V
HTF
, V
LTF
Tolerance ............................................................................................ 5
• Changed the RECOMMENDED DC OPERATING CONDITIONS - R
MTO
, C
MTO
Values ...................................................... 5
• Added Figure 3 - Battery Voltage Divider and Filter ............................................................................................................. 6
• Changed MTO equation From: MTO = R x C x 71,976 ........................................................................................................ 8
• Added Figure 8 ................................................................................................................................................................... 11
Changes from Revision 1 (January 1999) to Revision 2 Page
• Changed Table 4 - V
BLAT
value ........................................................................................................................................... 14
• Changed Table 5 - V
BLAT
value ........................................................................................................................................... 15
Changes from Revision 2 (March 1999) to Revision 3 Page
• Added the TSSOP Package option ...................................................................................................................................... 1
• Added Figure 2 State Diagram ............................................................................................................................................. 4
• Changed the DC THRESHOLDS - V
TCO
, V
HTF
, V
LTF
Tolerance ............................................................................................ 5
• Changed Figure 7 - Single-Cell Li-Ion, 3-Cell NiCd/NiMH 1A Charger .............................................................................. 10
• Changed the Top-Off and Pulse-Trickle Maintenance Charge section - Updated requirement for enabling top-off .......... 10
Changes from Revision 3 (May 1999) to Revision 4 Page
• Changed Rec DC Operating Conditions, V
OH
- From: MIN = V
CC
- 0.2 at I
OH
= 20mA To: MIN = V
CC
- 0.4 at I
OH
=
10mA ..................................................................................................................................................................................... 5
• Changed Rec DC Operating Conditions, V
OH
- From: I
OH
= 20mA To: I
OH
= 10mA ............................................................. 5
• Changed Figure 8 - Updated tolerance on the curve ......................................................................................................... 11
Changes from Revision 4 (February 2000) to Revision 5 Page
• Changed Figure 2 State Diagram - Battery voltage detail From: (checked at all times) To: Voltage regulation
checked constantly. PVD checked at rate of MTO/64. ......................................................................................................... 4
• Changed Figure 2 State Diagram - Battery temperature detail From: (checked at all times) To;: (checked 1,750
times per second) ................................................................................................................................................................. 4
Changes from Revision 5 (February 2001) to Revision 6 Page
• Changed the Top-Off and Pulse-Trickle Maintenance Charge section - First paragraph From: the value of the
resistor connected to this pin should be less than 15kΩ To: the value of the resistor connected to this pin should be
less than 250kΩ .................................................................................................................................................................. 10
Changes from Revision 6 (January 2008) to Revision D Page
• Changed the data sheet format. The data sheet was originally from Benchmark Products. In revision D, the data
sheet was converted to the TI format, and a re-write of the data sheet was implemented .................................................. 1
18 Submit Documentation Feedback Copyright © 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): bq2000