MAX16070 Datasheet, PDF (3/52 Pages) Maxim Integrated Products – 12-Channel/8-Channel, Flash-Configurable System Monitors with Nonvolatile Fault Registers

12-Channel/8-Channel, Flash-Configurable System
Managers with Nonvolatile Fault Registers
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 2.8V to 14V, TA = -40NC to +85NC, unless otherwise specified. Typical values are at VABP = VDBP = VCC = 3.3V, TA = +25NC.)
(Note 1)
PARAMETER
ADC DC ACCURACY
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Resolution
Gain Error
Offset Error
Integral Nonlinearity
Differential Nonlinearity
ADC Total Monitoring Cycle Time
ADCGAIN
ADCOFF
ADCINL
ADCDNL
tCYCLE
TA = +25°C
TA = -40°C to +85°C
No MON_ fault detected
1 LSB = 5.43mV
10
Bits
0.35
0.70
%
1
LSB
1
LSB
1
LSB
40
50
μs
5.56
ADC IN_ Ranges
1 LSB = 2.72mV
2.78
V
1 LSB = 1.36mV
1.39
CURRENT SENSE
CSP Input-Voltage Range
Input Bias Current
CSP Total Unadjusted Error
VCSP
ICSP
ICSM
CSPERR
VCSP = VCSM
(Note 4)
Gain = 48
3
14
V
14
25
μA
3
5
2
%FSR
21.5
25
30.5
Overcurrent Differential
Threshold
OVCTH
VCSP -
VCSM
Gain = 24
Gain = 12
Gain = 6
46
51
56
mV
94
101 108
190 202 210
VSENSE Fault Threshold
Hysteresis
OVCHYS
0.5
%OVCTH
r73h[6:5] = ‘00’
0
Secondary Overcurrent Threshold
Timeout
OVCDEL
r73h[6:5] = ‘01’
r73h[6:5] = ‘10’
3
4
5
ms
12
16
20
r73h[6:5] = ‘11’
50
64
60
VSENSE Ranges
Gain = 6
Gain = 12
Gain = 24
Gain = 48
232
116
mV
58
29
ADC Current Measurement
Accuracy
VSENSE = 150mV (gain = 6 only)
VSENSE = 50mV, gain = 12
VSENSE = 25mV, gain = 24
VSENSE = 10mV, gain = 48
-2.5 Q0.2 +2.5
-4
Q0.2
+4
%
Q0.5
Q1
Gain Accuracy
VSENSE = 20mV to 100mV, VCSP = 5V,
gain = 6
-1.5
+1.5
%
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
CMRRSNS VCSP > 4V
PSRRSNS
80
dB
80
dB
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