component
TCAN3403DDFRQ1
Public Made by Adomby adom
TI(德州仪器) , TSOT-23-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
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PCB Footprint
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Datasheet
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README
markdownTCAN3403DDFRQ1
TI(德州仪器) · IC · TSOT-23-8
TCAN3403DDFRQ1 from TI(德州仪器), in a TSOT-23-8. 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 controller, with integrated pull-up, referenced to VIO for TCAN3403-Q1. |
| 2 | GND | power_in | Ground connection that must be connected to the PCB ground. |
| 3 | VCC | power_in | 3.3V supply voltage (3V to 3.6V recommended operating range). |
| 4 | RXD | output | CAN receive data output, tri-stated when device powered off, referenced to VIO and only driven once VIO is present on TCAN3403-Q1. |
| 5 | VIO | power_in | I/O supply voltage for the logic level shifter on TCAN3403-Q1, supporting 1.7V to 3.6V (this pin is SHDN on TCAN3404-Q1). |
| 6 | CANL | bidirectional | Low-level CAN bus input/output line, with bus fault protection to ±58V. |
| 7 | CANH | bidirectional | High-level CAN bus input/output line, with bus fault protection to ±58V. |
| 8 | STB | input | Standby input for mode control with integrated pull-up, so a floating or high pin selects standby mode and GND selects normal mode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TI(德州仪器) |
| Package | TSOT-23-8 |
| Category | |
| 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 | -0.3 | 6 | V | 4 | ||
| Supply voltage I/O level shifter | VIO | -0.3 | 6 | V | only for TCAN3403 | 4 | |
| CAN bus I/O voltage range on CANH and CANL | VBUS | -58 | 58 | V | 4 | ||
| Max differential voltage between CANH and CANL | VDIFF | -58 | 58 | V | VDIFF = (CANH - CANL) | 4 | |
| Logic pin input voltage | VLogic_Input | -0.3 | 6 | V | TXD, STB, SHDN | 4 | |
| Logic output voltage range (RXD) | VRXD | -0.3 | 6 | V | 4 | ||
| RXD output current | IO(RXD) | -8 | 8 | mA | 4 | ||
| Junction temperature | TJ | -40 | 165 | °C | 4 | ||
| Storage temperature | TSTG | -65 | 150 | °C | 4 | ||
| Supply voltage | VCC | 3 | 3.3 | 3.6 | V | 4 | |
| Supply voltage for I/O level shifter | VIO | 1.7 | 3.6 | V | only for TCAN3403 | 4 | |
| RXD terminal high-level output current | IOH(RXD) | -1.5 | mA | only for TCAN3403 | 5 | ||
| RXD terminal low-level output current | IOL(RXD) | 1.5 | mA | only for TCAN3403 | 5 | ||
| Junction temperature | TJ | -40 | 150 | °C | 5 | ||
| Junction-to-ambient thermal resistance | RΘJA | 122.9 | ℃/W | DDF (SOT) | 5 | ||
| Junction-to-case (top) thermal resistance | RΘJC(top) | 51.7 | ℃/W | DDF (SOT) | 5 | ||
| Junction-to-board thermal resistance | RΘJB | 45.7 | ℃/W | DDF (SOT) | 5 | ||
| Supply current normal mode, dominant | ICC | 42 | 55 | mA | TXD = 0 V, STB = 0 V, RL = 60 Ω, CL = open | 5 | |
| Supply current normal mode, dominant | ICC | 50 | 60 | mA | TXD = 0 V, STB = 0 V, RL = 50 Ω, CL = open | 5 | |
| Supply current normal mode, recessive | ICC | 7 | 8.2 | mA | TXD = VCC, STB = 0 V, RL = 50 Ω, CL = open | 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 | 5 | ||
| Supply current standby mode (TCAN3403) | ICC | 1 | 4 | µA | TXD = STB = VIO, RL = 50 Ω, CL = open, TJ <= 150 °C | 5 | |
| I/O supply current normal mode, dominant | 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 | IIO | 19 | 48 | µA | TXD = VIO, STB = 0 V, RL = 60 Ω, CL = open, RXD floating | 6 | |
| I/O supply current standby mode | 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 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 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 | 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 | 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 | 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 - 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 | IOS(DOM) | -115 | 115 | mA | V(CANH) = -15 V to 40 V, CANL = open, TXD = 0 V | 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 | |
| Hysteresis voltage for input threshold normal mode | VHYS | 50 | mV | -30 V ≤ VCM ≤ 30 V, STB, SHDN = 0 V | 7 | ||
| Common mode range normal and standby modes | VCM | -30 | 30 | V | 8 | ||
| Differential input resistance | RID | 25 | 50 | kΩ | TXD = VIO, STB = 0 V, -30 V ≤ VCM ≤ 30 V | 8 | |
| Single ended input resistance (CANH or CANL) | RIN | 13 | 25 | kΩ | TXD = VIO, STB = 0 V, -30 V ≤ VCM ≤ 30 V | 8 | |
| Input resistance matching | RIN(M) | -3 | 3 | % | V(CAN_H) = V(CAN_L) = 5 V | 8 | |
| Thermal shutdown temperature | TTSD | 192 | °C | 6 | |||
| Total loop delay, recessive to dominant | tPROP(LOOP1) | 95 | 180 | ns | normal mode, VCC = VIO = 3 V to 3.6 V, RL = 60 Ω, CL = 100 pF, CL(RXD) = 15 pF | 9 | |
| Total loop delay, dominant to recessive | tPROP(LOOP2) | 120 | 180 | ns | normal mode, VCC = VIO = 3 V to 3.6 V, RL = 60 Ω, CL = 100 pF, CL(RXD) = 15 pF | 9 | |
| Mode change time, normal to standby or standby to normal | tMODE | 30 | µs | See Figure 7-5 | 9 | ||
| Propagation delay, TXD low-to-high to driver recessive | tprop(TxD-busrec) | 65 | 100 | ns | STB, SHDN = 0 V, RL = 60 Ω, CL = 100 pF, VCC = VIO = 3 V to 3.6 V | 9 | |
| Propagation delay, TXD high-to-low to driver dominant | tprop(TxD-busdom) | 46 | 100 | ns | STB, SHDN = 0 V, RL = 60 Ω, CL = 100 pF, VCC = VIO = 3 V to 3.6 V | 10 | |
| Differential output signal rise time | tR | 32 | 57 | ns | STB, SHDN = 0 V, RL = 60 Ω, CL = 100 pF | 10 | |
| Differential output signal fall time | tF | 30 | 50 | ns | STB, SHDN = 0 V, RL = 60 Ω, CL = 100 pF | 10 | |
| Dominant timeout | tTXD_DTO | 1.2 | 4 | ms | STB, SHDN = 0 V, RL = 60 Ω, CL = 100 pF | 10 | |
| Propagation delay, bus dominant input to RXD low output | tprop(busdom-RXD) | 45 | 90 | ns | STB, SHDN = 0 V, CL(RXD) = 15 pF, VCC = VIO = 3 V to 3.6 V | 10 |
CAD (KiCad official)
- Symbol:
TCAN3403DDFRQ1 - Footprint:
Package_TO_SOT_SMD:TSOT-23-8 - 3D model: TSOT-23-8 (KiCad packages3D, STEP)
- 3D model files:
tcan3403ddfrq1-etched.step/tcan3403ddfrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tcan3403ddfrq1.step/tcan3403ddfrq1.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 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).