BQ2031PN-A5 Datasheet, PDF (15/19 Pages) Texas Instruments – Lead-Acid Fast-Charge IC

bq2031
Data Sheet Revision History
Change No. Page No.
Description
Nature of Change
1
Descriptions
Clarified and consolidated
Dual-Level Constant Current Mode to Two-Step Current Mode
VMCV to VHCO
1
Renamed
VINT to VLCO
tUV1 to tQT1
tUV2 to tQT2
1
Consolidation
Tables 1 and 2
Start-up states
1
Added figures
Temperature sense input voltage thresholds
Pulsed maintenance current implementation
1
Updated figures
Figures 1 through 6
1
Added equations
Thermistor divider network configuration equations
1
Raised condition
MOD VOL and VOH parameters from ≤5mA to ≤10µA
1
Corrected Conditions VSNS rating from VMAX and VMIN to IMAX and IMIN
1
Added table
Capacitance table for CMTO and CPWM
2
6
Changed values in
Figure 5
Was 51K; is now 10K
3
7, 10
Changed values
in Equations 3 and 8
Was: IMAX = 0.275V/RSNS; is now IMAX = 0.250V/RSNS
3
8
Changed values
in Equation 4
Was: (VCC - 0.275); is now (VCC - 0.250V)
Changed rating value
3
11
for VSNS in DC
Was 0.275; is now 0.250
Thresholds table
4
11
TOPR
Deleted industrial temperature range.
Notes:
Change 1 = Dec. 1995 B changes from June 1995 A.
Change 2 = Sept. 1996 C changes from Dec. 1995 B.
Change 3 = April 1997 D changes from Sept. 1996 C.
Change 4 = June 1999 E changes from April 1997 D.
Ordering Information
bq2031
Package Option:
PN = 16-pin plastic DIP
SN = 16-pin narrow SOIC
Device:
bq2031 Lead Acid Charge IC
15