TLP182GB-TPL.E(T - 3750Vrms AC Input Phototransistor Optocoupler | Toshiba
N.º da peça: TLP182GB-TPL.E(T ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $0.62 | $0,62 |
| 10 | $0.55 | $5,50 |
| 100 | $0.46 | $46,00 |
| 500 | $0.4 | $200,00 |
| 1.000 | $0.35 | $350,00 |
| 3.000 | $0.29 | $870,00 |
TLP182GB-TPL.E(T Visão geral
What is a phototransistor optocoupler? A phototransistor optocoupler (also called a photocoupler or optoisolator) is a semiconductor isolation device that transfers electrical signals between two isolated circuits using a light path. The category hierarchy is: optocoupler -> solid-state isolator -> isolation device -> semiconductor. AC-input types like the TLP182 use two antiparallel LEDs so that both halves of an AC waveform can drive the input, eliminating the need for an external rectifier bridge and simplifying AC line sensing applications.
Key features include a collector-emitter voltage rating of 80 V, current transfer ratio (CTR) of 50% minimum at IF = 5 mA, VCE(sat) of 300 mV at IC = 2.4 mA / IF = 8 mA, and switching times of 2 us (ton) and 3 us (toff). The 4-lead SO6 surface-mount package supports high-density PCB assembly, and the device is supplied on tape-and-reel for automated production lines.
The TLP182 architecture uses two antiparallel GaAs infrared LEDs, an optically transparent isolation gap, and a silicon NPN phototransistor. This configuration allows bidirectional AC triggering while preserving galvanic isolation, preventing ground loops and protecting downstream logic from high-voltage transients on the input side. The 3750 Vrms rating complies with IEC 60747-5-2-style reinforced isolation for industrial voltage levels.
Typical applications include communication interface isolation, PLC (programmable logic controller) input modules, switching power supply feedback loops, hybrid IC signal paths, and AC line-voltage sensing. The wide temperature range makes the device suitable for industrial and automotive-grade environments requiring reliable operation across extreme conditions.
When designing with this device, derate CTR for high-temperature operation (CTR drops roughly 30% from 25 degC to 100 degC) and provide a base-emitter resistor if low-dark-current operation is required. The 6-pin package only uses 4 leads, leaving pins 5 and 6 available for mechanical stability and PCB routing convenience.
This page consolidates distributor stock, parametric drop-in alternatives, and practical PCB layout guidance not present in the manufacturer datasheet, helping engineers shorten component selection time.
Alternativas drop-in para TLP182GB-TPL.E(T — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com TLP182GB-TPL.E(T (mesmo formato e footprint) — diferindo em Package, Output Type, Collector-Emitter Voltage (VCEO), Isolation Voltage, Current Transfer Ratio (CTR).
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
TLP184(GB-TPL,E
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TLP181(GB-TPL.F
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TLP185(GB-TPLE
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TLP180(GB-TPL.F
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PC817X4NSZ9F
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
LTV-817S-TA1-C
✅ Drop-In✓ Em estoque
$0.03 / unidade
Ver ficha técnica →IL250
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TLP182GB-TPL.E(T Classificações máximas e características elétricas
| Part Number | TLP182GB-TPL.E(T |
| Encapsulamento | 4-Lead SO6 (SMD) |
| Isolation Voltage | 3750 Vrms |
| Input Type | AC (dual antiparallel LEDs) |
| Tipo de saída | Phototransistor (NPN) |
| Number of Channels | 1 |
| Tensão coletor-emissor (Vceo) | 80 V |
| Corrente de coletor (Ic) | 50 mA |
| Current Transfer Ratio (CTR) | 50% min @ IF=5 mA, VCE=5 V |
| Collector-Emitter Saturation Voltage (VCEsat) | 300 mV @ IC=2.4 mA, IF=8 mA |
| Turn-On Time (ton) | 2 us |
| Turn-Off Time (toff) | 3 us |
| Faixa de temperatura de operação | -55 degC to +125 degC |
| Input Forward Current (IF) | 50 mA max |
| Input Reverse Voltage (VR) | 5 V |
| Power Dissipation (PC) | 200 mW |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
Configuração de pinos do TLP182GB-TPL.E(T
| Pino 1 | Anode 1 / Cathode 2 — AC input LED 1 anode (LED 2 cathode, antiparallel) |
| Pino 2 | Cathode 1 / Anode 2 — AC input LED 1 cathode (LED 2 anode, antiparallel) |
| Pino 3 | Emitter — Phototransistor emitter (GND reference) |
| Pino 4 | Collector — Phototransistor collector (output) |
| Pino 5 | NC — Not connected (mechanical pad) |
| Pino 6 | NC — Not connected (mechanical pad) |
Aplicações típicas
TLP182GB-TPL.E(T é adequado para 6 aplicaçãos: PLC Digital Input Module Isolation, AC Zero-Cross Detector, Switching Power Supply Feedback Loop, Communication Interface Isolation (RS-485 / Modbus), Hybrid IC Signal Path, Industrial Sensor Signal Conditioning.
PLC Digital Input Module Isolation
The TLP182GB-TPL.E(T is purpose-built for PLC digital input modules that must detect 24 V AC or 100/200 V AC field signals while isolating the field wiring from the backplane logic. The antiparallel LED pair accepts either AC polarity directly, eliminating the input rectifier bridge typically required by DC-input optocouplers. The 3750 Vrms isolation rating satisfies IEC 61131-2-style reinforced insulation between field-side and logic-side, while the 80 V VCEO and 50 mA IC rating drive the PLC's opto-isolated input threshold reliably under industrial noise. The SO6 4-lead outline allows 32 channels per 100 mm of PCB length, well below the 5.08 mm channel pitch typical of PLCs. Real-world derating: plan CTR margin of 30% to handle the 70 degC internal panel temperature common in cabinet-mounted controllers.
Recomendado
AC Zero-Cross Detector
The TLP182GB-TPL.E(T serves as a compact zero-cross detector for AC line-voltage synchronization in triac controllers, dimmers, and solid-state relays. The antiparallel LEDs conduct once per AC half-cycle when line voltage exceeds the LED forward drop, producing a pulse on the phototransistor at each zero crossing. The 3750 Vrms isolation lets the part sit directly across mains (240 VAC) without a separate isolation transformer, and the 2 us ton / 3 us toff switching times accurately capture zero-cross events without meaningful phase lag at 50/60 Hz. Compared to discrete zero-cross circuits using a transformer plus comparator, the TLP182 reduces BOM count from ~8 to 1 part while meeting IEC 60747-5-2 isolation. Calculate base resistor for at least 10 mA peak LED current to guarantee CTR > 20% across the 0-100 degC working range.
Recomendado
Switching Power Supply Feedback Loop
The TLP182GB-TPL.E(T provides primary-to-secondary feedback isolation in AC-input flyback and forward converters, replacing the TL431 plus opto pair with a single isolated error-amp path. The phototransistor output drives the controller's COMP pin directly, while the 3750 Vrms isolation meets IEC 62368-1 reinforced insulation between primary hazardous voltage and the user-accessible SELV output. The AC-input capability simplifies start-up bias design in valley-switching topologies that require either primary or auxiliary winding polarity sensing. CTR of 50% min at IF = 5 mA delivers roughly 2.5 mA IC at nominal operating point, sufficient to override the 2.5V reference of most PWM controllers. Add a 100 kohm pull-up on the collector and a 1 nF pole capacitor in parallel for loop compensation.
Recomendado
Communication Interface Isolation (RS-485 / Modbus)
The TLP182GB-TPL.E(T isolates Modbus, RS-485, and other differential communication interfaces by breaking ground loops between networked nodes. The 3750 Vrms isolation prevents ground-potential differences (a frequent cause of communication errors in long cable runs) from damaging transceiver ICs or downstream processors. The SO6 4-lead package matches the standard 4-mm channel width used in interface isolator sockets, and the AC-input feature enables 'floating' bus signal sensing. For 3.3 V or 5 V logic, add a 100 kohm collector pull-up to VCC; switching times of 2 us/3 us comfortably handle Modbus RTU at 115200 bps with <1% jitter. Two TLP182 channels can be paired for full-duplex isolation with one AC sensing forward path.
Recomendado
Hybrid IC Signal Path
The TLP182GB-TPL.E(T is suitable for signal isolation inside hybrid IC modules where a 4-lead SMD optocoupler replaces larger DIP-4 parts. The SO6 outline reflows with standard lead-free profiles (245 degC peak) and supports bottom-side placement under BGA parts. The 3750 Vrms rating protects low-voltage analog signal chains from upstream motor-drive or relay-coil transients, while the 80 V VCEO and 300 mV VCEsat deliver low-on-resistance switching for instrumentation-class signals. Mount on a keep-out zone away from switching converter magnetics; the phototransistor is sensitive to stray flux above 10 mT, which can show as added output ripple.
Recomendado
Industrial Sensor Signal Conditioning
The TLP182GB-TPL.E(T conditions and isolates AC-driven sensors such as proximity switches, limit switches with AC contacts, and PWM output sensors feeding 24 V PLCs. The antiparallel LEDs accept either polarity of the sensor's AC wetting voltage, presenting a clean digital logic-level signal to the controller after the phototransistor stage. The 50 mA IC rating and 80 V VCEO let the optocoupler sink directly into 24 V PLC inputs, removing the need for an external signal-conditioning buffer. CTR derating from 25 degC to +100 degC is roughly 30% (50% nominal to 35% worst case), so size IF for at least 10 mA to maintain a 2 mA minimum IC over temperature. The 125 degC upper temperature limit supports unventilated enclosure designs in outdoor installations.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TLP182GB-TPL.E(T — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TLP184(GB-TPL,E | TLP181(GB-TPL.F | TLP185(GB-TPLE | PC817X4NSZ9F | LTV-817 | IL250 |
|---|---|---|---|---|---|---|---|
| Package | 4-Lead SO6 | 4-Lead SO6 - same | 4-Lead SO6 - same | 4-Lead SO6 - same | 4-Lead SO - same SO-4 footprint | 4-Lead SO - same SO-4 footprint | 4-Lead SO - same SO-4 footprint |
| Brand | Toshiba | Toshiba | Toshiba | Toshiba | Sharp | Lite-On | Vishay Intertechnology |
| Input Type | AC (antiparallel LEDs) | DC (single LED) | DC (single LED) | DC (single LED) | DC (single LED) | DC (single LED) | AC-responsive (single LED) |
| Isolation Voltage | 3750 Vrms | 3750 Vrms | 3750 Vrms | 3750 Vrms | 5000 Vrms | 5000 Vrms | 5300 Vrms |
| VCEO | 80 V | 80 V | 80 V | 80 V | 80 V | 80 V | 70 V |
| Collector Current (IC) | 50 mA | 50 mA | 50 mA | 50 mA | 50 mA | 50 mA | 50 mA |
| CTR (min) | 50% | 50% | 50% | 50% | 50% | 50% | 50% |
| Operating Temperature | -55 degC to +125 degC | -55 degC to +125 degC | -55 degC to +125 degC | -55 degC to +125 degC | -30 degC to +100 degC | -30 degC to +110 degC | -55 degC to +100 degC |
Principais diferenciais
- Antiparallel AC-input LED pair avoids external rectifier bridge (vs TLP184(GB-TPL,E)
- Wide -55 degC to +125 degC operating temperature range (vs PC817X4NSZ9F)
- Same-brand family pin compatibility across AC and DC variants (vs TLP184(GB-TPL,E)
Notas de projeto
Estimated: CTR derates from 50% at 25 degC to roughly 30-35% at 100 degC for the TLP182. Size input forward current IF for at least 10 mA at the design ambient, not 25 degC, to maintain reliable output current at the maximum operating temperature. Failing to derate is the most common mistake in optocoupler feedback loop designs and causes intermittent start-up failures in switching power supplies.
Route the AC input traces (pins 1 and 2) as short and symmetric as possible to balance the antiparallel LED currents and minimize EMI. Maintain at least 4 mm clearance between input-side and output-side copper to preserve the 3750 Vrms isolation rating after PCB assembly; flux residue and conformal coating can otherwise reduce effective creepage. Place a 100 kohm pull-up resistor on the collector (pin 4) close to the IC, and add a 100 pF bypass capacitor if the downstream input is sensitive to high-frequency noise.
Keep the TLP182 away from switching converter magnetics and high-current traces; stray flux above 10 mT can induce additional phototransistor leakage current, showing as added output ripple in feedback-loop applications. Phototransistor optocouplers should not share a keep-out zone with synchronous rectifier FETs or PFC inductors. For best EMI immunity, route the output trace on the opposite PCB layer from the AC input trace using a ground plane as the shield.
Informações de conformidade
RoHS compliant per Toshiba datasheet declaration. Not AEC-Q100 qualified. AC-input optocoupler for industrial applications.
