Datasheet

AD8280
Rev. C | Page 3 of 24
SPECIFICATIONS
VTOP = 7.5 V to 30 V, T
A
= −40°C to +105°C, unless otherwise noted.
Table 1.
Parameter Test Conditions/Comments Min Typ Max Unit
TRIP POINT ERRORS
Undervoltage Trip Point Error −25 +25 mV
Overvoltage Trip Point Error −15 +15 mV
Overtemperature Trip Point Error −25 +25 mV
Hysteresis for Overvoltage, Undervoltage,
and Overtemperature Trip Points
40 50 60 mV
CELL INPUTS (VIN0 TO VIN6)
Input Bias Current 0 20 nA
Input Offset Current 0 20 nA
Input Voltage Range One cell 0 5 V
Input Common-Mode Range 0
Top of
stack
V
TEMPERATURE INPUTS (VT1, VT2)
Input Bias Current −10 +10 nA
Input Voltage Range 0 5 V
OVERVOLTAGE THRESHOLD INPUT (OV)
Input Bias Current 0 20 nA
Input Voltage Range 3.6 4.6 V
UNDERVOLTAGE THRESHOLD INPUT (UV)
Input Bias Current 0 20 nA
Input Voltage Range 1.4 3.3 V
OVERTEMPERATURE THRESHOLD INPUT (OT)
Input Bias Current 0 20 nA
Input Voltage Range 1.5 4 V
INPUT/OUTPUT CHARACTERISTICS
Logic 1 Current AIINxx, AIOUTxx 100 150 200 μA
Logic 0 Current AIINxx, AIOUTxx 10 30 50 μA
Logic 1 Voltage Input, V
IH
With respect to VBOTx
All Pins Except TOP and BOT 2.0 LDO V
TOP and BOT Pins VTOP V
Logic 0 Voltage Input, V
IL
With respect to VBOTx
All Pins Except TOP and BOT 0.8 V
TOP and BOT Pins VBOT V
Logic 1 Voltage Output, V
OH
With respect to VBOTx 4.2 V
Logic 0 Voltage Output, V
OL
With respect to VBOTx 0.2 V
Input Bias Current SEL0, SEL1, DGT0, DGT1, DGT2, NPTC, ALRMSEL 1 μA
REFERENCE AND LDO
Reference Voltage 4.95 5.0 5.05 V
Reference Source Current 250 μA
LDO Voltage 0 mA ≤ LDO source current ≤ 10.0 mA 4.85 5.1 5.35 V
LDO Source Current 5.0 mA
DYNAMIC PERFORMANCE
Fault Detection (Deglitch) Time Range
Seven settings: 0.0 sec, 0.1 sec, 0.8 sec, 1.6 sec,
3.2 sec, 6.4 sec, and 12.8 sec
0.0 12.8 sec
Fault Detection (Deglitch) Accuracy −20 +20 %
Propagation Delay Time No capacitor on daisy chain 4.0 μs
Start-Up Time
From application enabled to LDO = 90% of
value
3.0 ms