NCV7321
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2
RECOMMENDED OPERATING RANGES AND KEY TECHNICAL CHARACTERISTICS
Table 1. RECOMMENDED OPERATING RANGES AND KEY TECHNICAL CHARACTERISTICS
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 20
mA
V
LIN
LIN Bus Voltage −45 45 V
V
WAKE
Operating DC Voltage on WAKE Pin 0 V
BB
V
Maximum Rating Voltage on WAKE Pin −35 45 V
V
INH
Operating DC Voltage on INH Pin 0 V
BB
V
V_Dig_IO Operating DC Voltage on Digital IO Pins (EN, RxD, TxD) 0 5.5 V
T
JSD
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) −4 +4 kV
Version NCV7321D11/D12/MW2; no filter on LIN
Electrostatic Discharge Voltage (LIN) System Human Body Model (Note 3)
−10 +10 kV
V
TRAN
Version NCV7321D12/MW2;
Voltage transients (DCC method), pin LIN
According to SAE J2962−1, Class C (Note 4)
−85 +85 V
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
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 conform to MIL STD 883 method 3015.7.
3. Equivalent to discharging a 150 pF capacitor through a 330 W resistor. System HBM levels are verified by an external test−house.
4. Direct Capacitor Coupling (DCC) method according to SAE J2962−1 specification, referring to ISO 7637−3 Slow Transient Pulse. Coupling
Capacitor 10 nF. Tested with no external protections. Verified by an external test house.
Table 2. THERMAL CHARACTERISTICS
Parameter Symbol Value Unit
Thermal characteristics, SOIC−8 (Note 5)
Thermal Resistance Junction−to−Air, Free air, 1S0P PCB (Note 6)
Thermal Resistance Junction−to−Air, Free air, 2S2P PCB (Note 7)
R
q
JA
R
q
JA
125
75
°C/W
°C/W
Thermal characteristics, DFN8 (Note 5)
Thermal Resistance Junction−to−Air, Free air, 1S0P PCB (Note 6)
Thermal Resistance Junction−to−Air, Free air, 2S2P PCB (Note 7)
R
q
JA
R
q
JA
140
47
°C/W
°C/W
5. Refer to ELECTRICAL CHARACTERISTICS, RECOMMENDED OPERATING RANGES and/or APPLICATION INFORMATION for Safe
Operating parameters.
6. Values based on test board according to EIA/JEDEC Standard JESD51−3, signal layer with 10% trace coverage.
7. Values based on test board according to EIA/JEDEC Standard JESD51−7, signal layers with 10% trace coverage.
