component
CA-IF1043DF-Q1
Public Made by Adomby adom
Chipanalog CAN ICs, DFN-14(3x4.5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownCA-IF1043DF-Q1
Chipanalog · CAN ICs · DFN-14(3x4.5)
CA-IF1043DF-Q1 from Chipanalog, in a DFN-14(3x4.5). 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 | Transmit data input; TXD high drives the CAN bus recessive, TXD low drives it dominant, with an internal pull-up resistor. |
| 2 | GND | power_in | Ground reference. |
| 3 | VCC | power_in | 5V supply input (4.5V to 5.5V recommended); place a 0.1uF capacitor between VCC and GND as close to the device as possible. |
| 4 | RXD | output | Receiver data output, referenced to VIO; high when the bus is recessive and low when the bus is dominant. |
| 5 | VIO | power_in | I/O level-shifting supply voltage, 1.7V to 5.5V recommended. |
| 6 | EN | input | Enable input for mode control, with an internal pull-down resistor. |
| 7 | INH | output | High-voltage inhibit output used to enable external power supply regulators; driven high (VSUP minus a drop) except in sleep mode where it is high impedance. |
| 8 | nFAULT | output | Fault output, active low indicates a fault has occurred; also indicates wake request/source and power-on status. |
| 9 | WAKE | input | High-voltage wake-up input for local wake-up, with an input range of -58V to 58V absolute maximum. |
| 10 | VSUP | power_in | Battery supply input, 4.5V to 45V recommended. |
| 11 | NC | unconnected | No connect. |
| 12 | CANL | bidirectional | Low-level CAN bus line, with bus fault protection to ±58V. |
| 13 | CANH | bidirectional | High-level CAN bus line, with bus fault protection to ±58V. |
| 14 | nSTB | input | Standby mode control input, with an internal pull-down resistor. |
| 15 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Chipanalog |
| Package | DFN-14(3x4.5) |
| Category | Communication Interface Chip/UART/485/232 |
| Pins | 15 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VSUP battery voltage range | VSUP | -0.3 | 58 | V | 5 | ||
| VCC 5-V bus supply voltage | VCC | -0.3 | 7 | V | 5 | ||
| VIO level-shift supply voltage | VIO | -0.3 | 7 | V | 5 | ||
| CAN bus IO voltage | VBUS | -58 | 58 | V | CANH, CANL | 5 | |
| Max differential voltage CANH-CANL | V(DIFF) | -58 | 58 | V | 5 | ||
| Logic input voltage | V(Logic_Input) | -0.3 | 7 | V | TXD, STB | 5 | |
| Logic output voltage | V(Logic_Output) | -0.3 | 7 | V | RXD | 5 | |
| INH output pin voltage | VINH | -0.3 | 58 | V | 58 and less than Vsup+0.3 | 5 | |
| WAKE pin input voltage | V(wake) | -58 | 58 | V | 5 | ||
| Logic output current | IO(LOGIC) | 8 | mA | RXD, nFAULT | 5 | ||
| INH output current | IO(INH) | 4 | mA | 5 | |||
| WAKE pin current | IO(WAKE) | 3 | mA | 5 | |||
| Junction temperature | TJ | -55 | 150 | °C | 5 | ||
| VSUP battery voltage | VSUP | 4.5 | 45 | V | 5 | ||
| VCC 5-V bus supply voltage | VCC | 4.5 | 5.5 | V | 5 | ||
| VIO level-shift supply voltage | VIO | 1.7 | 5.5 | V | 5 | ||
| RXD low-level output current | IOL(RXD) | 2 | mA | 5 | |||
| INH output current | IO(INH) | 2 | mA | 5 | |||
| Operating temperature range | TA | -40 | 125 | °C | 5 | ||
| HBM ESD, all pins | HBM | -4000 | 4000 | V | All pins | 5 | |
| HBM ESD, CANH/CANL to GND | HBM | -8000 | 8000 | V | CAN bus port to GND | 5 | |
| CDM ESD | CDM | -1500 | 1500 | V | All pins | 5 | |
| Junction-to-ambient thermal resistance | RθJA | 35.1 | °C/W | DFN14 | 6 | ||
| VSUP supply current, normal/silent/go-to-sleep | ISUP | 45 | 80 | uA | Normal, silent, go-to-sleep modes | 6 | |
| VSUP supply current, standby | ISUP | 40 | 80 | uA | Standby mode, VINH=V(WAKE)=VSUP | 6 | |
| VSUP supply current, sleep | ISUP | 35 | 70 | uA | Sleep mode, Vcc=VIO=VINH=0V, V(WAKE)=VSUP | 6 | |
| VCC supply current, dominant 60 Ohm | Icc | 48 | 70 | mA | TXD=0V, RL=60 Ohm (dominant) | 6 | |
| VCC supply current, dominant 50 Ohm | Icc | 50 | 80 | mA | TXD=0V, RL=50 Ohm (dominant) | 6 | |
| VCC supply current, dominant CANH short | Icc | 84 | 110 | mA | TXD=0V, CANH=-25V (dominant) | 6 | |
| VCC supply current, recessive | Icc | 1.8 | 5 | mA | TXD=VIO, RL=50 Ohm (recessive) | 6 | |
| VCC supply current, silent/go-to-sleep | Icc | 1 | 2.5 | mA | Silent and go-to-sleep, TXD=VIO, RL=50 Ohm | 6 | |
| VCC supply current, standby | Icc | 1.2 | 5 | uA | Standby, EN=L, nSTB=L | 6 | |
| VCC supply current, sleep | Icc | 2 | 5 | uA | Sleep, EN=H or L, nSTB=L | 6 | |
| VIO supply current, normal dominant | IIO | 110 | 450 | uA | Normal (dominant), TXD=0V, nSTB=VIO, EN=VIO | 6 | |
| VIO supply current, recessive/silent | IIO | 3.5 | 5 | uA | Normal (recessive), silent or go-to-sleep, TXD=VIO | 6 | |
| VIO supply current, sleep | IIO | 3 | 5 | uA | Sleep mode, nSTB=L | 6 | |
| VSUP UVLO threshold | Vuv_SUP | 2.5 | 3.65 | 4.2 | V | Rising | 6 |
| VCC UVLO threshold | Vuv_vcc | 4.1 | 4.45 | V | Rising | 6 | |
| VIO UVLO threshold | Vuv_vio | 1.4 | 1.56 | 1.7 | V | Rising | 6 |
| VSUP UVLO hysteresis | VHYS(UVSUP) | 50 | mV | Hysteresis | 6 | ||
| VCC UVLO hysteresis | VHYS(VCC) | 200 | mV | Hysteresis | 6 | ||
| VIO UVLO hysteresis | VHYS(UVIO) | 80 | mV | Hysteresis | 6 | ||
| nSTB/EN input high leakage current | IIH | 20 | 200 | uA | nSTB=EN=VCC=5.5V | 6 | |
| nSTB/EN unpowered leakage current | Ilek(off) | -1 | 1 | uA | nSTB=EN=5.5V, VCC=VIO=0V | 6 | |
| TXD input high leakage current | IIH | -2.5 | 0 | 1 | uA | TXD=VCC=5.5V | 6 |
| TXD input low leakage current | IIL | -200 | -20 | uA | TXD=0V, VCC=5.5V | 6 | |
| TXD unpowered leakage current | Ilek(off) | -1 | 0 | 1 | uA | TXD=5.5V, VCC=0V | 6 |
| TXD input capacitance | Ci | 5 | pF | 6 | |||
| RXD output low voltage | VOL | 0.22 | V | Io=+2mA | 6 | ||
| RXD unpowered leakage current | Ilek(off) | -1 | 0 | 1 | uA | RXD=5.5V, VCC=0V | 6 |
| nFAULT unpowered leakage current | Ilek(off) | -1 | 0 | 1 | uA | nFAULT=5.5V, VCC=0V | 7 |
| INH high-level voltage drop from VSUP | ΔVH | 2 | V | IINH=-1mA | 7 | ||
| INH leakage current | VLKG(INH) | -2 | 2 | uA | INH=0V, sleep mode | 7 | |
| INH short-circuit current | Io(sc) | -26 | mA | VINH=0V | 7 | ||
| WAKE input high leakage current | IIH | -25 | -5 | uA | WAKE=Vsup-1V | 7 | |
| WAKE input low leakage current | IIL | 10 | 25 | uA | WAKE=1V | 7 | |
| Dominant output voltage CANH | VO(DOM) | 2.75 | 4.5 | V | TXD=L, nSTB=VIO, RL=50-65 Ohm, CANH | 7 | |
| Dominant output voltage CANL | VO(DOM) | 0.5 | 2.25 | V | TXD=L, nSTB=VIO, RL=50-65 Ohm, CANL | 7 | |
| Dominant differential output voltage | VO(DOM) | 1.5 | 3 | V | TXD=L, RL=60 Ohm, RCM=165 Ohm, -5V<=VCM<=+10V | 7 | |
| Standby bus voltage CANH-CANL | VO(STB) | -0.2 | 0.2 | V | STB=VCC, RL open, CANH-CANL | 7 | |
| Receiver common-mode input range | VCM | -30 | 30 | V | Normal and standby modes, RXD output valid | 7 | |
| Over-temperature shutdown | TTSD | 190 | °C | 7 |
CAD (KiCad official)
- Symbol:
CA-IF1043DF-Q1 - Footprint:
Package_DFN_QFN:DFN-14-1EP_3x4.5mm_P0.65mm_EP1.65x4.25mm - 3D model: DFN-14(3x4.5) (KiCad packages3D, STEP)
- 3D model files:
ca-if1043df-q1-etched.step/ca-if1043df-q1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ca-if1043df-q1.step/ca-if1043df-q1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Chipanalog datasheet (32 pp, sha256
9bafe112cde9cf45, retrieved 2026-10-22, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).