TLE6214L Datasheet, PDF (12/17 Pages) Infineon Technologies AG – Smart Dual Current Sense Switch

Preliminary Datasheet TLE 6214 L
Analog Current Sensing :
The TLE6214L provides an analog current sensing function for both output channels. By SPI configura-
tion the multifunctional pin CO1 can sink a sense current proportional to the load current of one/ both of
the two output channels¹⁾. The specified current range and accuracy is described in the electrical char-
acteristics “5.Analog Current Sense Output”. To achieve the specified accuracy for current sensing the
voltage at the CO1 pin must always be U_CO1 ≥ 2V.
Timing Figures
Figure 5: Power Outputs and Status
V IN
VDS
tO N
80%
20%
V ST
t
tOFF
t
t d(fault)
t d(fault)
Figure 6: Open load (off) and Short to GND Diagnostics
50µA
I _{D IA G}
U _{O UT}
00µA
SCG
OL
norm al operation
1) _{At a low load current (<<200mA) and IC configured for current sense function an offset current at the CO1 occurs (typ. IS= 40µA @ ID=0A).}
V2 Preliminary
Page ¹²
25.06.2003