TLE4998C3 Datasheet, PDF (38/44 Pages) Infineon Technologies AG – Programmable Linear Hall Sensor

TLE4998C
SPC Output Definition
30µs after the master pulse crosses V_thr. t_md,tot is the delay between internal triggering
of the falling edge in the sensor and the triggering of the ECU.
Table 24 Master Pulse Parameters
Parameter
Symbol Limit Values Unit Notes
min. typ. max.
Falling edge threshold V_thf
1.1 1.3 1.7 V
Rising edge threshold V_thr
Total trigger time
t_mtr
1.25 1.43 1.8 V
10.8 13 16.3 UT Synchronous mode ¹⁾²⁾
46.6 56 70 UT Dyn. range mode ¹⁾²⁾
75 90 113 UT ID selection mode ¹⁾²⁾
Master delay time
t_md,tot 3.7 5.8 7.9 µs ³⁾
1) _{UT = Programmed nominal SPC unit time}
2) _{Trigger time in the sensor is fixed to the number of unit times specified in the “typ.” column, but the effective}
trigger time varies due to the sensor’s clock variation
3) _{For VDD = 5 V, RL = 2.2 kΩ, CL = 4.7 nF, ECU trigger level Vth,ECU = 2V}
t_mtr
OUT
V_thf,max
V_thf,min
V_thr,max
V_thr,min
t_mlow,min
t_mlow,max
Figure 14 SPC Master Pulse Timing
t_md,tot
ECU trigger
level
Data Sheet
38
Rev 1.0, 2008-12