BQ2040SN-C408 BENCHMARQ, BQ2040SN-C408 Datasheet - Page 27

• Manufacturer Part Number: BQ2040SN-C408
• Description: BATTERY CHARGE MONITOR, SMD, 2040
• Manufacturer: BENCHMARQ

Specifications of BQ2040SN-C408

• Battery Management Function: Charger, Status Monitor
• Battery Type: Li-Ion / NiCd / NiMH
• Supply Voltage Range: 3V To 6.5V
• Battery Ic Case Style: SOIC
• No. Of Pins: 16
• Operating Temperature Range: 0°C
• Interface Type: 2-Wire, Serial

Note:
Note:
DC Voltage Thresholds
E
Absolute Maximum Ratings
V
All other pins
REF
V
T
Symbol
VSB
OPR
CC
SR
Symbol
Battery voltage error relative to SB
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.
The accuracy of the voltage measurement may be improved by adjusting the battery voltage offset and
gain, stored in external EEPROM. For best operation, V
Relative to V
Relative to V
Operating tempera-
ture
Relative to V
Relative to V
Parameter
Parameter
SS
SS
SS
SS
(T A = T OPR ; V = 3.0 to 5.5V)
Minimum
-0.3
-0.3
-0.3
-0.3
0
Minimum
-50mV
Maximum
27
+7.0
+7.0
+8.5
+7.0
+70
CC
Typical
should be 1.5V greater than V
Unit
°C
-
V
V
V
V
Current limited by R11 (see Figure 1)
Minimum 100
be used to protect SR in case of a
shorted battery.
Commercial
Maximum
50mV
Unit
Notes
series resistor should
V
See note
SB
.
bq2040
Notes