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TLI4970-D025T4_15 Datasheet, PDF (24/29 Pages) Infineon Technologies AG – High precision miniature coreless magnetic current sensor for AC
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TLI4970-D025T4
Interfaces
Table 4-1 Interface Timing Parameters1) (5MHz SPI clock speed)
General conditions (unless otherwise specified): VDD = 3.3 V; TA = -40 °C ... +85 °C
Parameter
Symbol
Values
Unit Note / Test Condition
Min.
Typ. Max.
SPI speed (1 / bit time) fSPI
-
-
5
SPI period
tSPI
200
-
-
SCLK duty cycle
tCLH / tCLL 45
-
55
CS setup time
tCSS
95
-
-
CS hold time
tCSH
95
-
-
Data setup time
tDS
Delay between CS rising tDZ
edge and end of DOUT
data
-
-
65
-
-
75
MHz
ns
%
ns
ns
ns
ns
Duty cycle ratio 45% ... 55%
RL ≥ 100 kΩ
CL ≤ 50 pF to GND
RL ≥ 100 kΩ
CL ≤ 50 pF to GND
CS high time
tCSON
300
-
-
ns
1) All timing parameters are valid on the sensor pin with the specified test load only. Different loading due to PCB mounting
might result in different timing.
Table 4-2 Interface Electrical Characteristics (5MHz SPI clock speed)
General conditions (unless otherwise specified): VDD = 3.3 V; TA = -40 °C ... +85 °C
Parameter
Symbol
Values
Unit Note / Test Condition
Min.
Typ. Max.
Output level low (SPI)
VOL
Output level high (SPI) VOH
Input level low (SPI)
VIL
Input level high (SPI)
VIH
Input level hysteresis
(SPI)
Input capacitance
CI
Input resistance
RI
Load capacitance
CL
Load resistance
RL
-
-
0.8 x VDD -
-0.1
-
0.7 x VDD -
0.05 x -
VDD
-
-
100
-
-
-
100
-
0.2 x VDD V
-
ns
0.3 x VDD V
VDD
V
-
V
Resistive load; 1 mA to GND
Resistive load; 1 mA to GND
100
pF For all digital input pins
-
kΩ For all digital input pins
50
pF To GND; For all digital output pins
-
kΩ To VDD; For all digital output pins
4.2
Serial Inspection and Configuration Interface (SICI)
The serial inspection and configuration interface is only used for EEPROM programming. This interface is a one
wire interface provided by a double seizure of the OCD pin. To guarantee a proper SICI communication current
must not flow through the primary conductor (to avoid interferences with potential over current detection). The
instruction for the serial inspection and configuration interface can be found in the TLI4970 programming guide.
Data Sheet
24
Rev. 1.0, 2015-07-02
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