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TPT480L1-SO1R
Public Made by Adomby adom
3PEAK RS-485 / RS-422 ICs, SOP-8. 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
markdownTPT480L1-SO1R
3PEAK · RS-485 / RS-422 ICs · SOP-8
TPT480L1-SO1R from 3PEAK, in a SOP-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 | VCC | power_in | Power supply input; the recommended supply range is 3.0 V to 5.5 V. |
| 2 | R | output | Receiver output that goes high (fail-safe) when the bus is open, shorted, or idle, and follows the bus differential input otherwise. |
| 3 | D | input | Driver input; it has an internal pull-up to VCC, so when left open with the driver enabled, Y goes high and Z goes low. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | Y | output | Noninverting driver output on the RS-485 bus, which is high when D is high. |
| 6 | Z | output | Inverting driver output on the RS-485 bus, which is low when D is high. |
| 7 | B | input | Inverting receiver input from the RS-485 bus; bus pins are rated -7 V to +12 V common-mode for the receiver. |
| 8 | A | input | Noninverting receiver input from the RS-485 bus; bus pins are rated -7 V to +12 V common-mode for the receiver. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | 3PEAK |
| Package | SOP-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 |
|---|---|---|---|---|---|---|---|
| Driver differential output voltage magnitude | /VOD/ | 1.5 | 2.2 | V | RL = 54 Ω, VCC=3.3V | 10 | |
| Driver differential output voltage magnitude | /VOD/ | 2 | 3.3 | V | RL = 54 Ω, VCC=5.0V | 10 | |
| Driver differential output voltage magnitude | /VOD/ | 1.5 | 2.6 | V | RL = 100 Ω, VCC = 3.3V | 10 | |
| Driver differential output voltage magnitude | /VOD/ | 3 | 3.9 | V | RL = 100 Ω, VCC = 5.0V | 10 | |
| Change in magnitude of driver differential output voltage | Δ/VOD/ | -50 | 50 | mV | RL = 54 Ω, CL = 50 pF, 375 Ω on A/B: -7 V to 12V, VCC=3.3V | 10 | |
| Steady-state common-mode output voltage | VOC(SS) | 1 | 3 | V | Center of two 27-Ω load resistors | 10 | |
| Change in differential driver output common-mode voltage | ΔVOC | -200 | 200 | mV | 10 | ||
| Positive-going receiver differential input voltage threshold | VIT+ | -110 | -50 | mV | 10 | ||
| Negative-going receiver differential input voltage threshold | VIT- | -200 | -130 | mV | 10 | ||
| Receiver high-level output voltage | VOH | 2.6 | 3 | V | VCC = 3.3 V, IOH = -8 mA | 10 | |
| Receiver high-level output voltage | VOH | 4.1 | 4.8 | V | VCC = 5 V, IOH = -8 mA | 10 | |
| Receiver low-level output voltage | VOL | 0.19 | 0.4 | V | VCC = 3.3 V, IOH = -8 mA | 10 | |
| Receiver low-level output voltage | VOL | 0.02 | 0.4 | V | VCC = 5 V, IOH = -8 mA | 10 | |
| Input high logic level (driver, driver enable, receiver enable) | VIH | 2 | V | D, DE, /RE | 10 | ||
| Input low logic level (driver, driver enable, receiver enable) | VIL | 0.8 | V | D, DE, /RE | 10 | ||
| Driver input, driver enable, and receiver enable input current | IIN | -5 | 5 | µA | D, DE, /RE | 10 | |
| Driver output high-Z current | IOZ | -100 | 0 | µA | VO = -7V | 10 | |
| Driver output high-Z current | IOZ | 0 | 125 | µA | VO = 12V | 10 | |
| Receiver high-Z current | IOZ | -1 | 1 | µA | VO = 0 V or VCC | 10 | |
| Driver short-circuit output current | IOS | -250 | 250 | mA | VY, VZ= -7V ~ 12V | 10 | |
| Driver short-circuit output current | IOS | -180 | 180 | mA | VY, VZ =0V or VCC | 10 | |
| Bus input current (disabled driver) | IIA/B | 55 | 125 | µA | DE = 0 V, RE=VCC, VI = 12 V | 10 | |
| Bus input current (disabled driver) | IIA/B | -100 | -50 | µA | DE = 0 V, RE=VCC, VI = -7 V | 10 | |
| Supply current (quiescent), 32Mbps, driver and receiver enabled | ICC | 1200 | 2500 | µA | DE=VCC, RE = GND, No load | 10 | |
| Supply current (quiescent), 32Mbps, driver enabled, receiver disabled | ICC | 1200 | 2500 | µA | DE=VCC, RE = VCC, No load | 10 | |
| Supply current (quiescent), 32Mbps, driver disabled, receiver enabled | ICC | 1000 | 2200 | µA | DE=GND, RE = GND, No load | 10 | |
| Supply current (quiescent), 32Mbps, driver and receiver disabled | ICC | -5 | 5 | µA | DE=GND, RE = VCC, No load | 10 | |
| Driver differential-output rise and fall times (tr, tf) | tr, tf | 4 | 6 | 10 | ns | RL = 54 Ω, CL=50pF, See Figure 2; VCC=5.0V | 11 |
| Receiver rise and fall times (tr, tf); datasheet label reads 'Driver differential-output rise and fall times' | tr, tf | 2 | 4 | 6 | ns | VCC=5.0V | 11 |
| Driver differential-output rise and fall times (tr, tf) | tr, tf | 4 | 6 | 14 | ns | RL = 54 Ω, CL=50pF, See Figure 2; VCC=3.3V | 11 |
| Receiver rise and fall times (tr, tf); datasheet label reads 'Driver differential-output rise and fall times' | tr, tf | 2 | 4 | 8 | ns | VCC=3.3V | 12 |
| Supply voltage | VCC | 3 | 5.5 | V | 8 | ||
| Input voltage at any bus terminal | VI | -7 | 12 | V | 8 | ||
| High-level input voltage (driver, driver enable, receiver enable inputs) | VIH | 2 | V | driver, driver enable, and receiver enable inputs | 8 | ||
| Low-level input voltage (driver, driver enable, receiver enable inputs) | VIL | 0 | 0.8 | V | driver, driver enable, and receiver enable inputs | 8 | |
| Differential input voltage | VID | -7 | 12 | V | 8 | ||
| Operating ambient temperature | TA | -40 | 125 | °C | 8 | ||
| Junction temperature | TJ | -40 | 150 | °C | 8 | ||
| VCC to GND | VCC | -0.3 | 7 | V | 8 | ||
| Voltage at logic pin D, DE, /RE, R | -0.3 | V | Printed maximum is VCC + 0.3 V | 8 | |||
| Voltage at bus pin A, B, Y, Z | -15 | 15 | V | Footnote (1): ±15 V in receiver mode, -8 V to +13 V in driver mode | 8 | ||
| Operating temperature range | -40 | 125 | °C | 8 | |||
| Storage temperature range | -65 | 150 | °C | 8 | |||
| Maximum junction temperature | 150 | °C | 8 | ||||
| Lead temperature (soldering) | 260 | °C | Soldering, 10 sec | 8 | |||
| Thermal resistance, junction-to-ambient | θJA | 120 | °C/W | 8-Pin SOP | 9 | ||
| Thermal resistance, junction-to-case | θJC | 64 | °C/W | 8-Pin SOP | 9 |
CAD (KiCad official)
- Symbol:
TPT480L1-SO1R - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
tpt480l1-so1r-etched.step/tpt480l1-so1r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tpt480l1-so1r.step/tpt480l1-so1r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: 3PEAK datasheet (27 pp, sha256
f4ba7db4a3a41330, retrieved 2026-10-17, 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).