Si8501-C-IM Silicon Laboratories Inc, Si8501-C-IM Datasheet - Page 17
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Si8501-C-IM
Manufacturer Part Number
Si8501-C-IM
Description
Board Mount Current Sensors 5A SINGLE OUTPUT 1kV
Manufacturer
Silicon Laboratories Inc
Type
AC Current Sensorr
Series
-r
Datasheet
1.SI8503-C-IS.pdf
(36 pages)
Specifications of Si8501-C-IM
Current Rating
5 A
Supply Voltage
2.7 V to 5.5 V
Frequency Range
50 KHz to 1 MHz
Operating Temperature
- 40 C to + 125 C
Accuracy
5 %
Current - Sensing
5A
Sensitivity
392mV/A
Current - Supply
4mA
Sensor Type
Closed Loop
Voltage - Supply
2.7 V ~ 5.5 V
Output
Configurable
Frequency
50kHz ~ 1MHz
Response Time
-
Polarization
Unidirectional
Package / Case
12-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
As explained in Section “2.3. Integrator Reset and Current Measurement”, the signals applied to R1–R4 can
control integrator reset in real time (Option 1), or they can trigger a reset event of programmable duration (Option
2). Referring to Figure 13, reset timing is exclusively a function of the signals applied to R1–R4 when TRST is tied
to VDD.
If not connected to VDD, the reset timer is enabled, and TRST must be connected through a resistor to ground to
set the reset duration (t
pulse whenever the reset logic output transitions from low to high.
output voltage > VDD
Required if driver
CONTROLLER
SYSTEM
Internal
Driver
R2
R3
R4
R1
External
Logic level gate
control signals
Driver
(to Rn inputs)
Logic level gate
control signals
(to Rn inputs)
R
). Note that the reset timer is retriggerable and generates a timed integrator discharge
Figure 13. Si851x Integrator Reset Logic
Preliminary Rev. 0.21
MODE = 1
MODE = 1
MODE = 0
R4 = 1
R4 = 0
Output 1
Output 2
Output 3
CLK
Reset timing determined
RESET
TIMER
only by inputs R1–R4.
TRST = VDD
PGM
OUT
1
INTEGRATOR
0
+
R1–R4. Reset time (t
by value of resistor R
Reset triggered by inputs
VREF
TRST
TRST = R1 to GND
Si85xx
R
TRST
) set
.
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