component
TCAN3403DRQ1
Public Made by Adomby adom
TI(德州仪器) CAN Transceivers, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownTCAN3403DRQ1
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tcan3403drq1.step/tcan3403drq1.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).