BQ2058T Datasheet, PDF (11/18 Pages) Texas Instruments – Lithium Ion Pack Supervisor For 2-Cell Packs

bq2058T
Data Sheet Revision History
Change No. Page No.
Description
1
5
CHG pin output state
1
9
Overcurrent limits
1
9
Charge detect threshold
2
4
Overvoltage options, Table 1
2
4
Figure 2
2
6, 9
Delay thresholds
2
7
DSG and CHG timing diagram
2
7
Timing Diagram
2
8
Maximum input current
2
9
VOV tolerance
2
9
Overcurrent limits
2
9
VOP
Nature of Change
CHG pin state at overvoltage and floating battery
input was low, is now Z
Was: VOCL = 100mV ±25mV
Is: VOCL = 150mV ±25mV
Was: 70mV +10mV, +80mV
Is: 70mV -60mV, +80mV
Added bq2058TR
Corrected schematic
Was: tOCD = 10ms ±30%
tOVD = 800ms ±30%
tUVD = 800ms ±30%
Is: tOCD = 12ms ±40%
tOVD = 950ms ±40%
tUVD = 950ms ±40%
Inverted lines for proper logic levels
Was: CSH timing
Is: CSL timing
Added IIN
Was: ±50mV
Is: ±55mV
Was: V_OCH = 160mV +25mV
VOCL = 150mV +25mV
Is: VOCH = 160mV +35mV
VOCL = 160mV +35mV
Was: 0V min, 18V max
Is: 4V min, 9V max
Note:
Change 1 = June 19, 1997 changes from April 22, 1997.
Change 2 = July 1997 changes from June 19, 1997
July 1997
11