TLE7257 Datasheet, PDF (22/31 Pages) Infineon Technologies AG – LIN Transceiver

TLE7257
Electrical Characteristics
Table 6 Electrical Characteristics (cont’d)
5.5 V < V_S < 18 V; R_L = 500 Ω; -40°C < T_j < 150°C;
all voltages with respect to ground; positive current flowing into pin; unless otherwise specified.
Parameter
Symbol
Duty cycle D3
D3
(for worst case at 10.4 kBit/s)
Values
Min. Typ. Max.
0.417 –
–
Duty cycle D3
D3
for V_S supply 5.5 V to 7.0 V
(for worst case at 10.4 kBit/s)
0.417 –
–
Duty cycle D4
D4
(for worst case at 10.4 kBit/s)
–
–
0.590
Duty cycle D4
D4
for V_S supply 6.1 V to 7.6 V
(for worst case at 10.4 kBit/s)
–
–
0.590
1) Not subject to production test, specified by design
2) V_{BUS_CNT} = (V_{th_dom} + V_{th rec}) / 2
3) V_HYS = V_{th_rec} - V_{th_dom}
4) Delay time specified for a load of 10 kΩ / 20 pF on the INH output
5) Bus load concerning LIN Spec 2.2A:
Load 1 = 1 nF / 1 kΩ = C_BUS / R_L
Load 2 = 6.8 nF / 660 Ω = C_BUS / R_L
Load 3 = 10 nF / 500 Ω = C_BUS / R_L
Unit Note / Test Condition
Duty cycle 3 ⁵⁾
TH_Rec(max) = 0.778 × V_S;
TH_Dom(max) =0.616 × V_S;
V_S = 7.0 … 18 V; t_bit = 96 μs;
D3 = t_{bus_rec(min)} / 2 × t_bit;
LIN Spec 2.2A (Par. 29)
Duty cycle 3 ⁵⁾
TH_Rec(max) = 0.797 × V_S;
TH_Dom(max) = 0.630 × V_S;
5.5 V < V_S < 7.0 V;
t_bit = 96 μs;
D3 = t_{bus_rec(min)} / 2 × t_bit;
Duty cycle 4 ⁵⁾
TH_Rec(min) = 0.389 × V_S;
TH_Dom(min) = 0.251 × V_S;
V_S = 7.6 … 18 V; t_bit = 96 μs;
D4 = t_{bus_rec(max)} / 2 × t_bit;
LIN Spec 2.2A (Par. 30)
Duty cycle 4 ⁵⁾
TH_Rec(min) = 0.378 × V_S;
TH_Dom(min)= 0.242 × V_S;
6.1 V < V_S < 7.6 V;
t_bit = 96 μs;
D4 = t_{bus_rec(max)} / 2 × t_bit;
Num
ber
4.9.11
4.9.12
4.9.13
4.9.14
Data Sheet
22
Rev. 1.0, 2013-10-16