BQ2158 Datasheet, PDF (7/8 Pages) Texas Instruments – Three or Four Series Cell Li-Ion Pack Supervisor Module

bq2158
DC Thresholds (T_A = T_OPR)
Symbol
Parameter
Value
Tolerance
Unit
Notes
V_OV
V_CE
V_UV
IOC
t_UVD
V_CD
t_OVD
t_OCD
Overvoltage threshold
Charge enable voltage
Undervoltage limit
Overcurrent limit
Undervoltage delay
Charge detect threshold
Overvoltage delay
Overcurrent delay
4.25
± 50mV
V
VOV - 100mV ± 50mV
V
2.25
± 100mV
V
3.4
A
3.8
A
950
±50%
ms
70
-60, +80
mV
950
±50%
ms
12
±60%
ms
TA = 25°C
TA = 60°C
TA = 30°C
TA = 30°C
TA = 30°C
Note:
The thresholds above reflect the operation of a bq2158 using the standard bq2058 IC (V_OV = 4.25V).
Specify other versions of the bq2058 by indicating the appropriate V_OV threshold in Table 1.
Data Sheet Revision History
Change No.
1
Page No.
3
Description
Table 2 pin connections
Note:
Change 1 = May 1999 B changes from July 1996.
Nature of Change
Clarified onboard bq2058 connection.
Ordering Information
bq2158 B —
Customer Code:
Blank = Sample or Pre-production¹
XXX = Customer-specific; assigned by Unitrode²
Package Option:
B = Board-level product
Device:
Three- or Four-Series Cell Li-Ion Supervisor Module
Notes:
1. Requires configuration sheet (Table 1)
2. Example production part number: bq2158B-001
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