High-Side Current-Sense and Internal 1°C Temperature Monitor
Datasheet
Peak
Detector
Threshold
t < tFILTER
t < tFILTER
t > tFILTER
THERM Pin
t > tFILTER
t < tDURATION
t > tDURATION
Figure 4.2 Peak Detection Example
The peak detector threshold is determined upon device power up by the value of the resistor
connected between the TH_SEL pin and ground (for EMC1701-1 only) or via the SMBus (see
Section 5.17). The resistor selects one of 16 different VSENSE measurement limits (from 10mV to
85mV) as shown in Table 4.1.
Table 4.1 TH_SEL Resistor Setting (EMC1701-1 only)
PEAK DETECTION
THRESHOLD
PEAK DETECTION
THRESHOLD
RESISTOR (5%)
RESISTOR (5%)
0
10mV
15mV
20mV
25mV
30mV
35mV
40mV
45mV
1600
2000
2700
3600
5600
9100
20000
Open
50mV
55mV
60mV
65mV
70mV
75mV
80mV
85mV
100
180
300
430
560
750
1270
The peak detector duration is determined upon device power up by the value of the resistor between
the DUR_SEL pin and ground (for EMC1701-1 only) or via the SMBus (see Section 5.17). The resistor
selects one of 16 different time durations from 1 ms to 4.096s as shown in Table 4.2.
Revision 1.2 (09-27-10)
SMSC EMC1701
DATA2S4HEET
SMSC [ SMSC CORPORATION ]
