BQ4285_14 Datasheet, PDF (12/29 Pages) Texas Instruments – Real-Time Clock (RTC) With NVRAM Control

bq4285
Absolute Maximum Ratings
Symbol
Parameter
Value
Unit
Conditions
VCC
DC voltage applied on VCC relative to VSS
VT
DC voltage applied on any pin excluding VCC
relative to VSS
TOPR
Operating temperature
TSTG
Storage temperature
TBIAS
Temperature under bias
TSOLDER Soldering temperature
-0.3 to 7.0
-0.3 to 7.0
0 to +70
-55 to +125
-40 to +85
260
V
V
VT ≤ VCC + 0.3
°C
Commercial
°C
°C
°C
For 10 seconds
Note:
Permanent device damage may occur if Absolute Maximum Ratings are exceeded. Functional opera-
tion should be limited to the Recommended DC Operating Conditions detailed in this data sheet. Expo-
sure to conditions beyond the operational limits for extended periods of time may affect device reliability.
Recommended DC Operating Conditions (TA = TOPR)
Symbol
Parameter
Minimum
Typical
Maximum
Unit
VCC
Supply voltage
VSS
Supply voltage
VIL
Input low voltage
VIH
Input high voltage
VBC
Backup cell voltage
4.5
5.0
5.5
V
0
0
0
V
-0.3
-
0.8
V
2.2
-
VCC + 0.3
V
2.5
-
4.0
V
Note:
Typical values indicate operation at TA = 25°C.
12