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TCAN3403DDFRQ1

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TI(德州仪器) , TSOT-23-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TCAN3403DDFRQ1

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tcan3403ddfrq1.step / tcan3403ddfrq1.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 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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