TLE8262-2E Datasheet, PDF (70/94 Pages) Infineon Technologies AG – Universal System Basis Chip

TLE8262-2E
Limp Home
13.6
Electrical Characteristics
V_S = 5.5 V to 28 V; T_j = -40 °C to +150 °C; SBC Normal Mode; all voltages with respect to ground; positive current
defined flowing into pin unless otherwise specified.
Pos. Parameter
Symbol Limit Values
Unit Test Condition
Min. Typ. Max.
Limp Home;
13.6.1 Watchdog edge count
n_LH
–
1
difference to set Limp
Home activated
2
–
–
With SPI set.
Default Setting
13.6.2 Limp Home low output
voltage (active)
V_LHLO
–
0.2
0.4
V
I_LH = 1mA
13.6.3
13.6.4
13.6.5
Limp Home high output
current (inactive)
INIT Time-out
V_cc1µC under voltage
Time-out
I_LHHI
0
t_INITTO
–
t_Vcc1UVTO 900
–
256
1024
2
µA
–
ms
1150 ms
V_LH = 28V
1)
13.6.6 V_s threshold for V_cc1µC
V_SthUV1 5.3
–
under voltage Time-out
(V_s needs to be above, to _{VSthUV2 4.3}
–
activate V_cc1µC under
voltage Time-out)
V_SthUV3 4.0
–
6.3
V
V_RT1 default setting
5.3
V
V_RT2 SPI option
5.0
V
V_RT3 SPI option
13.6.7 Threshold for Limp Home V_LHUV 4.5
–
minimum V_s
5.5
V
–
13.6.8 Limp Home V_s voltage
hysteresis
V_LHUVhys –
0.2
–
V
–
LH _SI;
13.6.9 Limp Home side indicator f_LHSI
frequency
1.125 1.25
1,375 Hz –
13.6.10 Limp Home side indicator d_SI
–
duty cycle
50
–
%
–
LH_PL/Test
13.6.11 HIGH Level Input Voltage V_Test,HI –
–
Threshold
3
V
–
13.6.12 Input Hysteresis
V_Test,hys 100
300
13.6.13 LOW Level Input Voltage V_Test,LO 1
–
Threshold
700 mV –
–
V
–
13.6.14 Pull-up Resistor
R_Test
20
40
80
kΩ
V_{LH_PL/Test} = 0V
SBC Init Mode
13.6.15 Limp Home pulsed light f_{LH_PL} 90
frequency
100
110 Hz –
13.6.16 Limp Home pulsed light d_PL
-
duty cycle
1) Not subject to production test, specified by design.
20
-
%
–
Data Sheet
70
Rev. 1.0, 2009-05-26