High-Side Current-Sense and Internal 1°C Temperature Monitor
Datasheet
Table 2.2 Electrical Specifications (continued)
VDD = VBUS = 3V TO 24V, VPULLUP = 3V TO 5.5V, TA = -40°C TO 85°C,
ALL TYPICAL VALUES AT VDD = VPULLUP = 3.3V, VBUS = 12V, AND TA = 27°C UNLESS OTHERWISE NOTED.
CHARACTERISTIC
SYMBOL
MIN
TYP
MAX
UNIT
CONDITIONS
CURRENT SENSE
Voltage on SENSE+ and/or
SENSE- pins, referenced to
Ground
Common Mode
Voltage
VCM
3
24
V
V
Differential Mode
Voltage
Voltage between SENSE+ and
SENSE- pins
VDIFF
-6
+6
0
0
0
0
10
20
40
80
mV
mV
mV
mV
%
1 LSB = 4.885uV
1 LSB = 9.77uV
Full Scale Range (±)
(see Section 5.16)
FSR
1 LSB = 19.54uV
1 LSB = 39.08uV
0.5
1
3
Total Error, FSR = 80mV
Total Measurement
Error (±)
VSENSE
_ERR
Total Error, FSR = 10mV to
40mV
%
LSB
dB
VSENSE
_OFF
Offset Error (±)
3
Offset Error, FSR = 80mV
Power Supply
Rejection
VSENSE
_PSR
FSR = 10mV to 80mV,
3V < VDD < 24V
-120
-110
Common Mode
Rejection
VSENSE
_CMR
FSR = 10mV to 80mV,
3V < VBUS < 24V
dB
SOURCE VOLTAGE
Full Scale Voltage
FSV
3
23.9883
V
Voltage on SENSE+ pin
Total Measurement
Error (±)
VSOURCE
_ERR
0.2
0.5
%
(see Section 4.1.2)
POWER RATIO
100
Full Scale Range
0
%
%
%
1 LSB = 1.53m%
FSR = 80mV
1.6
3
Total Measurement
Error (±)
PRATIO
_ERR
FSR = 10mV to 40mV
CURRENT SENSE PEAK DETECTION
Peak Detector
Threshold Range
Programmable via TH_SEL pin
(EMC1701-1 only)
VTH
TDUR
tFILTER
10
1
85
mV
ms
us
Peak Detector
Duration Range
Programmable via DUR_SEL
pin (EMC1701-1 only)
4096
VSENSE Peak
Detection
5
Revision 1.2 (09-27-10)
SMSC EMC1701
DATA1S2HEET
SMSC [ SMSC CORPORATION ]
