AD8280 datasheet(11/24 Pages) AD

11 / 24 page

AD8280

Rev. C | Page 11 of 24

–15

–10

–5

1014

1822

2630

STACK VOLTAGE (V)

VOLTAGE BETWEEN

VIN1 AND VIN2

VIN2 AND VIN3

VIN3 AND VIN4

VIN4 AND VIN5

VIN5 AND VIN6

VIN0 AND VIN1

Figure 21. Overvoltage Trip Point Error vs. Stack Voltage (VIN6 – VIN0)

–25

–20

–15

–10

–5

STACK VOLTAGE (V)

10141822

2630

VIN0 AND VIN1

VOLTAGE BETWEEN

VIN1 AND VIN2

VIN2 AND VIN3

VIN3 AND VIN4

VIN4 AND VIN5

VIN5 AND VIN6

Figure 22. Undervoltage Trip Point Error vs. Stack Voltage (VIN6 – VIN0)

–2

18222630

STACK VOLTAGE (V)

Figure 23. Input Bias Current vs. Stack Voltage (VIN6 – VIN0)

0.5

1.0

1.5

2.0

2.5

101418

222630

0.5

1.0

1.5

2.0

2.5

STACK VOLTAGE (V)

ENABLED

DISABLED

Figure 24. Supply Current vs. Stack Voltage (VIN6 – VIN0)

1.15

1.20

1.25

1.30

1.35

1.40

–50

–30

–10

TEMPERATURE (°C)

110

STACK VOLTAGE = 7.5V

STACK VOLTAGE = 18V

STACK VOLTAGE = 29.8V

Figure 25. Enabled Supply Current vs. Temperature

for Various Stack Voltages (VIN6 – VIN0)

2.5

3.0

3.5

4.0

4.5

5.0

5.5

SOURCE CURRENT (mA)

LDO

REF

Figure 26. LDO and Reference Voltage vs. LDO Source Current,

Stack Voltage = 7.5 V

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