Rainbow Electronics DS2761 - Manual (Page 23)

DS2761
23 of 24
ELECTRICAL CHARACTERISTICS:
PROTECTION CIRCUITRY
(0 °C to +50°C, 2.5V £ V
DD
£ 5.5V)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Overvoltage Detect V
OV
4.325
4.250 4.350
4.275 4.375
4.300 V 1, 2
Charge Enable V
CE
4.10 4.15 4.20 V 1
Undervoltage Detect V
UV
2.5 2.6 2.7 V 1
Overcurrent Detect I
OC
1.8 1.9 2.0 A 3
Overcurrent Detect V
OC
45 47.5 50 mV 1, 4
Short-Circuit Detect I
SC
5.0 8.0 11 A 3
Short-Circuit Detect V
SC
150 200 250 mV 1
Overvoltage Delay t
OVD
0.8 1 1.2 sec
Undervoltage Delay t
UVD
90 100 110 ms
Overcurrent Delay t
OCD
5 10 20 ms
Short-Circuit Delay t
SCD
80 100 120 m s
Test Threshold V
TP
0.5 1.0 1.5 V
Test Current I
TST
10 20 40 mA
Recovery Charge Current I
RC
0.5 1 2 mA 13
ELECTRICAL CHARACTERISTICS:
TEMPERATURE, VOLTAGE, CURRENT
(-20 °C to +50°C, 2.5V £ V
DD
£ 5.5V)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Temperature Resolution T
LSB
0.125 °C
Temperature Full-Scale
Magnitude T
FS
127 °C
Temperature Error T
ERR
±3 °C 5
Voltage Resolution V
LSB
4.88 mV
Voltage Full-Scale
Magnitude V
FS
4.75 V
Voltage Offset Error V
OERR
1 LSB 6
Voltage Gain Error V
GERR
5 %
Current Resolution I
LSB
0.625
15.625
mA
m V
3
4
Current Full-Scale
Magnitude I
FS
1.9 2.56
64
A
mV
3, 4
7
Current Offset Error I
OERR
1 LSB 8
Current Gain Error I
GERR
3
1 % 3, 9
4
Accumulated Current
Resolution q
CA
0.25
6.25 mAhr
µVhr
3
4
Current Sampling
Frequency f
SAMP
1456 Hz
Internal Timebase Accuracy t
ERR
±1 ±3 % 10