Part: TJA1050

Type: High speed CAN transceiver

Description: High speed CAN transceiver with very low electromagnetic emission, improved unpowered node behavior, and bus pins protected against automotive transients, supporting baud rates from 60 kbaud up to 1 Mbaud.

Operating Conditions:

• Supply voltage: 4.75–5.25 V
• Operating temperature: -40 to +150 °C (virtual junction temperature)
• Baud rate: 60 kbaud up to 1 Mbaud

Absolute Maximum Ratings:

• Max supply voltage: +6 V
• Max junction/storage temperature: +150 °C

Key Specs:

• Supply current (dominant): 75 mA (max, V TXD = 0 V)
• Supply current (recessive): 10 mA (max, V TXD = V CC)
• Differential bus input voltage (dominant): 1.5–3 V (V TXD = 0 V)
• Propagation delay TXD to RXD: 250 ns (max, V S = 0 V)
• Differential receiver threshold voltage: 0.5–0.9 V
• TXD dominant time-out: 250–750 μs (V TXD = 0 V)
• Short-circuit output current (CANH): -95 mA (max, V CANH = 0 V, V TXD = 0 V)
• Short-circuit output current (CANL): 100 mA (max, V CANL = 36 V, V TXD = 0 V)

Features:

• Fully compatible with the 'ISO 11898' standard
• High speed (up to 1 Mbaud)
• Very low ElectroMagnetic Emission (EME)
• Differential receiver with wide common-mode range for high ElectroMagnetic Immunity (EMI)
• An unpowered node does not disturb the bus lines
• Transmit Data (TXD) dominant time-out function
• Silent mode in which the transmitter is disabled
• Bus pins protected against transients in an automotive environment
• Input levels compatible with 3.3 V and 5 V devices
• Thermally protected
• Short-circuit proof to battery and to ground
• At least 110 nodes can be connected.

Applications:

• High-speed automotive applications
• Nodes in a power-down situation in partially powered networks

Package:

• SO8 (plastic small outline package; 8 leads; body width 3.9 mm)
• Bare die (die dimensions 1700 · 1280 · 380 m m)

• Fully compatible with the 'ISO 11898' standard
• High speed (up to 1 Mbaud)
• Very low ElectroMagnetic Emission (EME)
• Differential receiver with wide common-mode range for high ElectroMagnetic Immunity (EMI)
• An unpowered node does not disturb the bus lines
• Transmit Data (TXD) dominant time-out function
• Silent mode in which the transmitter is disabled
• Bus pins protected against transients in an automotive environment
• Input levels compatible with 3.3 V and 5 V devices
• Thermally protected
• Short-circuit proof to battery and to ground
• At least 110 nodes can be connected.

TJA1050 Pinout

Package: SO8 (SOT96-1)

Notes

• Pin S (Mode Select): Connect to GND for high-speed mode (default); connect to VCC for silent mode (transmitter disabled). Philips recommends connecting to GND even if not used, for optimal EMI performance.
• Bus Protection: CANH and CANL are protected against automotive transients per ISO 7637.
• Thermal Protection: Transmitter shuts down if junction temperature exceeds ~165 °C; resets when TXD goes HIGH.
• TXD Dominant Time-Out: If TXD is held LOW for >450 µs (typical), transmitter disables to prevent bus lockup.
• Vref Output: Provides 0.5 VCC reference (typical 2.5 V at 5 V supply) for external biasing.

According to IEC 60747-1.

SO8: plastic small outline package; 8 leads; body width 3.9 mm

TJA1050