Rainbow-electronics DS2761 Manual de usuario descargar pdf (Pagina 23)

DS2761

23 of 24

ELECTRICAL CHARACTERISTICS:

PROTECTION CIRCUITRY (0°C to +50°C, 2.5V £ V

£ 5.5V)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

Overvoltage Detect V

4.325

4.250

4.350

4.275

4.375

4.300

V1, 2

Charge Enable V

4.10 4.15 4.20 V 1

Undervoltage Detect V

2.5 2.6 2.7 V 1

Overcurrent Detect I

1.8 1.9 2.0 A 3

Overcurrent Detect V

45 47.5 50 mV 1, 4

Short-Circuit Detect I

5.0 8.0 11 A 3

Short-Circuit Detect V

150 200 250 mV 1

Overvoltage Delay t

OVD

0.811.2sec

Undervoltage Delay t

UVD

90 100 110 ms

Overcurrent Delay t

OCD

51020ms

Short-Circuit Delay t

SCD

80 100 120 ms

Test Threshold V

0.5 1.0 1.5 V

Test Current I

TST

10 20 40

Recovery Charge Current I

0.5 1 2

ELECTRICAL CHARACTERISTICS:

TEMPERATURE, VOLTAGE, CURRENT (-20°C to +50°C, 2.5V £ V

£ 5.5V)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

Temperature Resolution T

LSB

0.125

°C

Temperature Full-Scale

Magnitude

127

°C

Temperature Error T

ERR

±3 °C

Voltage Resolution V

LSB

4.88 mV

Voltage Full-Scale

Magnitude

4.75 V

Voltage Offset Error V

OERR

1LSB6

Voltage Gain Error V

GERR

Current Resolution I

LSB

0.625

15.625

Current Full-Scale

Magnitude

1.9 2.56

3, 4

Current Offset Error I

OERR

1LSB8

Current Gain Error I

GERR

%3, 9

Accumulated Current

Resolution

0.25

6.25

mAhr

µVhr

Current Sampling

Frequency

SAMP

1456 Hz

Internal Timebase Accuracy t

ERR

±1 ±3

%10

1 2 ... 18 19 20 21 22 23 24

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Rainbow-electronics DS2761 Manual de usuario Pagina 23

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