TJA1043
Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.
What the TJA1043 does
The TJA1043 is a high-speed CAN transceiver designed for automotive networks, available in TJA1043T and TJA1043TK variants. It supports data rates up to 5 Mbit/s in the CAN FD fast phase and operates with supply voltages from 4.5 V to 5.5 V. The device handles electrostatic discharge up to 8 kV and functions across a junction temperature range of -40 to +150 °C. It features low-power management with standby currents as low as 0.75 µA and includes comprehensive protection against bus short circuits and thermal overload. Engineers use this component to interface microcontrollers directly to the physical CAN bus while ensuring reliable communication even when system supplies switch off.
Datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| quiescent current | 5 µA | 18 µA | 30 µA | Standby mode; VCC> 4.5 V; VINH = VWAKE = VBAT; ibat; Supply pin VBAT | NXP datasheet, p. 14 — 10. Static characteristics |
| output voltage | 2.75 V | 3.5 V | 4.5 V | pin CANH; R_L = 50 \Omegato65 \Omega; v{dom}; Bus lines; pins CANH and CANL | NXP datasheet, p. 15 — Table 8. Static characteristics ...continued |
| supply voltage range | 4.5 V | — | 40 V | vbat; Supply pin VBAT | NXP datasheet, p. 14 — 10. Static characteristics |
| operating temperature | -40 °C | — | 150 °C | virtual junction temperature Tvj | NXP datasheet, p. 3 — Table 1. Quick reference data ...continued |
| input capacitance | — | 5 pF | 10 pF | not tested; c; Static characteristics ... | NXP datasheet, p. 15 — Table 8. Static characteristics ...continued |
| propagation delay | 40 ns | — | 240 ns | td(TXDL-RXDL); Normal mode | NXP datasheet, p. 17 — Table 9. Dynamic characteristics: |
| data rate | — | 5 Mbps | — | CAN FD fast phase | NXP datasheet, p. 1 |
| channel count | — | 1 | — | NXP datasheet, p. 1 | |
| driver count | — | 1 | — | NXP datasheet, p. 5 — Table 3. Pin description | |
| receiver count | — | 1 | — | NXP datasheet, p. 5 — Table 3. Pin description |
Closest matches to TJA1043
Frequently asked questions
What is the channel count of the TJA1043?
The channel count is 1.
What is the data rate during the CAN FD fast phase?
The data rate is 5 Mbps.
What is the driver count for the TJA1043?
The driver count is 1.
What is the input capacitance of the TJA1043?
The input capacitance is 5 pF, which is not tested; c; Static characteristics ....
What is the maximum operating temperature for the TJA1043?
The operating temperature is 150 °C at virtual junction temperature Tvj.
What is the output voltage at pin CANH when R_L is between 50 Ω and 65 Ω in dominant state on the bus lines?
The output voltage is 3.5 V.
What is the propagation delay (td(TXDL-RXDL)) in normal mode?
The propagation delay (td(TXDL-RXDL)) in normal mode is 240 ns.
What is the quiescent current in standby mode with VCC > 4.5 V, VINH = VWAKE = VBAT, and ibat at the supply pin VBAT?
The quiescent current is 18 µA.
What is the receiver count for the TJA1043?
The receiver count is 1.
What is the supply voltage range on the VBAT pin?
The supply voltage range is 40 V on the VBAT pin.