NCV7424
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3
Table 1. KEY TECHNICAL CHARACTERISTICS AND OPERATING RANGES
Symbol Parameter Min Typ Max Unit
V
BB
Nominal Battery Operating Voltage (Note 1) 5 12 27
V
Load Dump Protection 45
I
BB
_SLP
Supply Current in Sleep Mode, V
BB
= 12 V, T
J
< 85°C V
LINx
= V
BB
10 30
mA
V
LIN
LIN Bus Voltage −45 45 V
V_Dig_IO Operating DC Voltage on Digital IO Pins (EN, RxD1-4, TxD1-4) 0 5.5 V
T
J
Junction Thermal Shutdown Temperature 150 165 185 °C
T
amb
Operating Ambient Temperature −40 125 °C
V
ESD
Electrostatic Discharge Voltage (all pins) Human Body Model (Note 2)
Conform to EIA−JESD22−A114−B
−4 4 kV
Electrostatic Discharge Voltage (LIN) System Human Body Model (Note 3)
Conform to EIC 61000−4−2
−10 10 kV
1. Below 5 V on V
BB
in normal mode, the bus will either stay recessive or comply with the voltage level specifications and transition time
specifications as required by SAE J2602. It is ensured by the battery monitoring circuit. Above 27 V on V
BB
, LIN communication is operational
(LIN pin toggling) but parameters cannot be guaranteed. For higher battery voltage operation above 27 V, LIN pull-up resistor must be
selected large enough to avoid clamping of LIN pin by voltage drop over external pull-up resistor and LIN pin min current limitation.
2. Equivalent to discharging a 100 pF capacitor through a 1.5 kW resistor.
3. Equivalent to discharging a 150 pF capacitor through a 330 W resistor. System HBM levels are verified by an external test−house.
Table 2. PIN FUNCTION DESCRIPTION
Pin Name Description
1 TxD4 Transmit Data Input, Low for Dominant State; Pull-up to internal supply guaranteed above pin input threshold
2 RxD3 Receive Data Output; Low in Dominant State
3 TxD3 Transmit Data Input, Low for Dominant State; Pull-up to internal supply guaranteed above pin input threshold
4 RxD1 Receive Data Output; Low in Dominant State
5 EN Enable Input, Transceiver in Normal Operation Mode when High, Pull-down Resistor to GND
6 TxD2 Transmit Data Input, Low for Dominant State; Pull-up to internal supply guaranteed above pin input threshold
7 TxD1 Transmit Data Input, Low for Dominant State; Pull-up to internal supply guaranteed above pin input threshold
8 RxD2 Receive Data Output; Low in Dominant State
9 LIN2 LIN Bus Output/Input
10 GND Ground
11 LIN1 LIN Bus Output/Input
12 V
BB
Battery Supply Input
13 LIN3 LIN Bus Output/Input
14 GND Ground
15 LIN4 LIN Bus Output/Input
16 RxD4 Receive Data Output; Low in Dominant State
