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TCAN3403DRQ1

TI(德州仪器) · CAN Transceivers · SOIC-8

TCAN3403DRQ1 from TI(德州仪器), in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 TXD input CAN transmit data input from the CAN controller, referenced to VCC for TCAN3404-Q1 or to VIO for TCAN3403-Q1, with an integrated pull-up.
2 GND power_in Ground connection that must be connected to the PCB ground.
3 VCC power_in 3.3V supply voltage for the CAN transceiver.
4 RXD output CAN receive data output, referenced to VCC (TCAN3404-Q1) or VIO (TCAN3403-Q1), and tri-stated when the device is powered off.
5 SHDN,VIO power_in For TCAN3403-Q1 this pin is the VIO I/O supply voltage that sets the digital interface level; on TCAN3404-Q1 the same pin is SHDN, a digital input with integrated pull-down that puts the device in ultra-low power shutdown mode when high.
6 CANL bidirectional Low-level CAN bus input/output line.
7 CANH bidirectional High-level CAN bus input/output line.
8 STB input Standby input for mode control, with an integrated pull-up so the device enters standby when left floating or pulled high.

Key specifications

Parameter Value
Manufacturer TI(德州仪器)
Package SOIC-8
Category Interface
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VCC (recommended operating) VCC 3 3.3 3.6 V 4
Supply voltage for I/O level shifter (only for TCAN3403) (recommended operating) VIO 1.7 3.6 V 4
RXD terminal high-level output current (only for TCAN3403) IOH(RXD) -1.5 mA 5
RXD terminal low-level output current (only for TCAN3403) IOL(RXD) 1.5 mA 5
Junction temperature (recommended operating) TJ -40 150 °C 5
Supply voltage VCC (absolute maximum) VCC -0.3 6 V 4
Supply voltage I/O level shifter (only for TCAN3403) (absolute maximum) VIO -0.3 6 V 4
CAN bus I/O voltage range on CANH and CANL (absolute maximum) VBUS -58 58 V 4
Max differential voltage between CANH and CANL (absolute maximum) VDIFF -58 58 V VDIFF = (CANH - CANL) 4
Logic pin input voltage (TXD, STB, SHDN) (absolute maximum) VLogic_Input -0.3 6 V 4
Logic output voltage range (RXD) (absolute maximum) VRXD -0.3 6 V 4
RXD output current (absolute maximum) IO(RXD) -8 8 mA 4
Junction temperature (absolute maximum) TJ -40 165 °C 4
Storage temperature (absolute maximum) TSTG -65 150 °C 4
Supply current normal mode, dominant ICC 42 55 mA TXD = 0 V, STB = 0 V, RL = 60 Ω, CL = open, See Figure 7-1 5
Supply current normal mode, dominant ICC 50 60 mA TXD = 0 V, STB = 0 V, RL = 50 Ω, CL = open, See Figure 7-1 5
Supply current normal mode, recessive ICC 7 8.2 mA TXD = VCC, STB = 0 V, RL = 50 Ω, CL = open, See Figure 7-1 5
Supply current normal mode, dominant with bus fault ICC 130 mA TXD = 0 V, STB = 0 V, CANH = CANL = ±25 V, RL = open, CL = open, See Figure 7-1 5
Supply current standby mode (TCAN3403) ICC 1 2 µA TXD = STB = VIO, RL = 50 Ω, CL = open, TJ <= 85 °C, See Figure 7-1 5
Supply current standby mode (TCAN3403) ICC 1 4 µA TXD = STB = VIO, RL = 50 Ω, CL = open, TJ <= 150 °C, See Figure 7-1 5
I/O supply current normal mode, dominant (TCAN3403) IIO 125 300 µA TXD = 0 V, STB = 0 V, RL = 60 Ω, CL = open, RXD floating 6
I/O supply current normal mode, recessive (TCAN3403) IIO 19 48 µA TXD = VIO, STB = 0 V, RL = 60 Ω, CL = open, RXD floating 6
I/O supply current standby mode (TCAN3403) IIO 9 13 µA TXD = VIO, STB = VIO, RL = 60 Ω, CL = open, RXD floating, TJ <= 85 °C 6
I/O supply current standby mode (TCAN3403) IIO 9 15 µA TXD = VIO, STB = VIO, RL = 60 Ω, CL = open, RXD floating, TJ <= 150 °C 6
Undervoltage detection VCC rising UVCC(R) 2.75 2.9 V Ramp up 6
Undervoltage detection on VCC falling UVCC(F) 2.5 2.65 V Ramp down 6
Undervoltage detection VIO rising (TCAN3403) UVIO(R) 1.6 1.65 V Ramp up 6
Undervoltage detection on VIO falling (TCAN3403) UVIO(F) 1.4 1.5 V Ramp down 6
Dominant output voltage normal mode, CANH VO(DOM) 2.25 V TXD = 0 V, STB, SHDN = 0 V, 50 Ω ≤ RL ≤ 65 Ω, CL = open, See Figure 7-2 and Figure 8-3 6
Dominant output voltage normal mode, CANL VO(DOM) 0.5 1.25 V TXD = 0 V, STB, SHDN = 0 V, 50 Ω ≤ RL ≤ 65 Ω, CL = open, See Figure 7-2 and Figure 8-3 6
Recessive output voltage normal mode CANH and CANL VO(REC) 1.5 1.9 2.25 V TXD = VIO or VCC, STB, SHDN = 0 V, RL = open (no load), CL = open, See Figure 7-2 and Figure 8-3 6
Driver symmetry VSYM 0.9 1.1 V/V TXD = 250 kHz, 1 MHz, 2.5 MHz, STB, SHDN = 0 V, RL = 60, CSPLIT = 4.7 nF, CL = open 7
DC output symmetry VSYM_DC -400 400 mV STB, SHDN = 0 V, RL = 60 Ω, CL = open 7
Differential output voltage normal mode, dominant VOD(DOM) 1.5 3 V TXD = 0 V, STB, SHDN = 0 V, 50 Ω ≤ RL ≤ 65 Ω, CL = open 7
Differential output voltage normal mode, dominant VOD(DOM) 1.4 3 V TXD = 0 V, STB, SHDN = 0 V, 45 Ω ≤ RL ≤ 70 Ω, CL = open 7
Differential output voltage normal mode, dominant VOD(DOM) 1.5 3.4 V TXD = 0 V, STB, SHDN = 0 V, RL = 2240 Ω, CL = open 7
Differential output voltage normal mode, recessive VOD(REC) -120 12 mV TXD = VIO or VCC, STB, SHDN = 0 V, RL = 60 Ω, CL = open 7
Differential output voltage normal mode, recessive VOD(REC) -50 50 mV TXD = VIO or VCC, STB, SHDN = 0 V, RL = open, CL = open 7
Bus output voltage standby mode, CANH VO(STB) -0.1 0.1 V TXD = STB = VIO or VCC, RL = open, CL = open 7
Bus output voltage standby mode, CANL VO(STB) -0.1 0.1 V TXD = STB = VIO or VCC, RL = open, CL = open 7
Bus output voltage standby mode, CANH - CANL VO(STB) -0.2 0.2 V TXD = STB = VIO or VCC, RL = open, CL = open 7
Short-circuit bus output current, dominant, normal mode, CANH IOS(DOM) -115 115 mA V(CANH) = -15 V to 40 V, CANL = open, TXD = 0 V 7
Short-circuit bus output current, dominant, normal mode, CANL IOS(DOM) -115 115 mA V(CAN_L) = -15 V to 40 V, CANH = open, TXD = 0 V 7
Short-circuit steady-state output current, recessive, normal mode, CANH IOS(REC) -7 7 mA V(CANH) = -27 V to 32 V, CANL = open, STB=0, TXD = VIO or VCC 7
Short-circuit steady-state output current, recessive, normal mode, CANL IOS(REC) -7 7 mA V(CANL) = -27 V to 32 V, CANH = open, STB = 0, TXD = VIO or VCC 7
Input threshold voltage normal mode VIT 500 900 mV -30 V ≤ VCM ≤ 30 V, STB, SHDN= 0 V 7
Input threshold standby mode, TCAN3403 VIT(STB) 400 1150 mV VIO = 3 V to 3.6 V, -30 V ≤ VCM ≤ 30 V, STB= VIO 7
Normal mode dominant state differential input voltage range VDOM 0.9 9 V -30 V ≤ VCM ≤ 30 V, STB, SHDN= 0 V 7
Normal mode recessive state differential input voltage range VREC -4 0.5 V -30 V ≤ VCM ≤ 30 V, STB, SHDN= 0 V 7
Standby mode dominant state differential input voltage range VDOM(STB) 1.15 9 V SHDN= 0 V, STB = VIO, -30 V ≤ VCM ≤ 30 V 7
Standby mode recessive state differential input voltage range VREC(STB) -4 0.4 V SHDN = 0 V, STB = VIO, -30 V ≤ VCM ≤ 30 V 7
Common mode range normal and standby modes VCM -30 30 V See Figure 7-3 and Table 8-6 8
Undervoltage hysteresis on UVCC VHYS(UVCC) 120 mV 6
Hysteresis voltage on UVIO (TCAN3403) VHYS(UVIO) 50 mV 6
Junction-to-ambient thermal resistance RΘJA 114.4 ℃/W D (SOIC) package 5
Junction-to-case (top) thermal resistance RΘJC(top) 49 ℃/W D (SOIC) package 5
Junction-to-board thermal resistance RΘJB 58 ℃/W D (SOIC) package 5
Junction-to-top characterization parameter ΨJT 7 ℃/W D (SOIC) package 5
Junction-to-board characterization parameter ΨJB 57.1 ℃/W D (SOIC) package 5

CAD (KiCad official)

  • Symbol: TCAN3403DRQ1
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: tcan3403drq1-etched.step / tcan3403drq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tcan3403drq1.step / tcan3403drq1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: TI(德州仪器) datasheet (46 pp, sha256 b1f664b052f46baf, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF