Electrical characteristics (continued) – Rainbow Electronics MAX16071 User Manual
Page 3
12-Channel/8-Channel, Flash-Configurable System
Managers with Nonvolatile Fault Registers
MAX16070/MAX16071
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 2.8V to 14V, T
A
= -40NC to +85NC, unless otherwise specified. Typical values are at ABP = DBP = V
CC
= 3.3V, T
A
= +25NC.)
(Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ADC DC ACCURACY
Resolution
10
Bits
Gain Error
ADC
GAIN
T
A
= +25°C
0.35
%
T
A
= -40°C to +85°C
0.70
Offset Error
ADC
OFF
1
LSB
Integral Nonlinearity
ADC
INL
1
LSB
Differential Nonlinearity
ADC
DNL
1
LSB
ADC Total Monitoring Cycle Time
t
CYCLE
No MON_ fault detected
40
50
μs
ADC IN_ Ranges
1 LSB = 5.43mV
5.56
V
1 LSB = 2.72mV
2.78
1 LSB = 1.36mV
1.39
CURRENT SENSE
CSP Input-Voltage Range
V
CSP
3
14
V
Input Bias Current
I
CSP
14
25
μA
I
CSM
V
CSP
= V
CSM
3
5
CSP Total Unadjusted Error
CSP
ERR
(Note 4)
2
%FSR
Overcurrent Differential
Threshold
OVC
TH
V
CSP
-
V
CSM
Gain = 48
21.5
25
30.5
mV
Gain = 24
46
51
56
Gain = 12
94
101
108
Gain = 6
190
202
210
V
SENSE
Fault Threshold
Hysteresis
OVC
HYS
0.5
% OVC
TH
Secondary Overcurrent Threshold
Timeout
OVC
DEL
r73h[6:5] = ‘00’
0
ms
r73h[6:5] = ‘01’
3
4
5
r73h[6:5] = ‘10’
12
16
20
r73h[6:5] = ‘11’
50
64
60
V
SENSE
Ranges
Gain = 6
232
mV
Gain = 12
116
Gain = 24
58
Gain = 48
29
ADC Current Measurement
Accuracy
V
SENSE
= 150mV (gain = 6 only)
-2.5
Q
0.2
+2.5
%
V
SENSE
= 50mV, gain = 12
-4
Q
0.2
+4
V
SENSE
= 25mV, gain = 24
Q
0.5
V
SENSE
= 10mV, gain = 48
Q
1
Gain Accuracy
V
SENSE
= 20mV to 100mV, V
CSP
= 5V,
gain = 6
-1.5
+1.5
%
Common-Mode Rejection Ratio
CMRR
SNS
V
CSP
> 4V
80
dB
Power-Supply Rejection Ratio
PSRR
SNS
80
dB