TLP590B(C.F) - 7V/12uA Photovoltaic Optocoupler, 6-DIP | Toshiba
Teilenummer: TLP590B(C.F) ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $1.26 | $1,26 |
| 10 | $1.13 | $11,30 |
| 100 | $0.95 | $95,00 |
| 500 | $0.78 | $390,00 |
| 1.000 | $0.65 | $650,00 |
TLP590B(C.F) Übersicht
A photovoltaic optocoupler is a special class of optoisolator whose output is not a transistor but an optically-generated photovoltaic voltage source. Internally, multiple photodiodes are stacked in series to multiply the per-junction voltage produced by incoming infrared photons, producing an open-circuit voltage that can reach several volts. The TLP590B belongs to the photodiode-output optocoupler family (optical isolator > photocoupler > photovoltaic isolator > solid-state relay driver), positioned within Toshiba's broad optocoupler portfolio alongside transistor-output (TLP181) and Triac-output (TLP3051) parts. Its hallmark is that no external DC bias is required at the isolated side: light alone produces usable output voltage.
Key specifications include a 2500 Vrms isolation voltage (1 minute, 60 Hz, per IEC 60747-5-5-style test), a forward current IF of up to 20 mA, an operating temperature range of -40C to +85C, and a 6-DIP through-hole package with 5 functional leads. The series-connected photodiode architecture gives 7 V VOC at IF=10 mA, sufficient to enhancement-mode a standard 4 Vth MOSFET gate in many bootstrap applications. Internal optical-coupling distance provides reinforced insulation suitable for power-supply feedback, battery management isolation, and industrial control interfaces.
Typical applications include isolated MOSFET/IGBT gate drivers, programmable logic controller (PLC) digital input modules, telecom line-interface isolation, solid-state relay (SSR) trigger circuits, and analog signal isolation. The TLP590B is also used as a building block in isolated DC-DC converter feedback loops and battery-management system (BMS) cell-voltage telemetry, where galvanic isolation and zero quiescent current draw from the secondary side are mandatory.
When designing with this part, limit continuous forward current to 20 mA for longevity and provide a series resistor from the 3.3 V or 5 V logic rail. A 0.1 uF bypass across the output is recommended when the load is highly capacitive, since the photovoltaic source has finite output impedance and can oscillate under sudden load steps.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in-Alternativen für TLP590B(C.F) – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
TLP598B
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TLP597G
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TLP598GAF
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TLP591B
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
VOM1271
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
ACPL-K370
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
TLP590B(C.F) Technische Daten
| Manufacturer | Toshiba Semiconductor and Storage |
| Product Type | Photovoltaic Output Optocoupler |
| Configuration | 1 Channel |
| Input Diode Type | GaAlAs Infrared Emitting Diode (IRED) |
| Ausgangstyp | Series-connected Photo-Diode Array (photovoltaic) |
| Open-Circuit Output Voltage (VOC) | 7 V (typ, IF=10 mA) |
| Short-Circuit Output Current (ISC) | 12 uA (typ, IF=10 mA) |
| Maximum Forward Current (IF) | 20 mA |
| Maximum Forward Voltage (VF) | 1.7 V |
| Reverse Voltage (VR) | 5 V |
| Isolation Voltage | 2500 Vrms (1 minute, 60 Hz) |
| Betriebstemperaturbereich | -40C to +85C |
| Gehäuse | 6-DIP, 5 Lead (through-hole) |
| Montageart | Through-Hole (THT) |
| RoHS-Status | Compliant |
TLP590B(C.F) Pin-Konfiguration
| Pin 1 | Anode (LED +) — Infrared LED anode; connect to current-limiting resistor from logic supply |
| Pin 2 | Cathode (LED -) — Infrared LED cathode; connect to logic ground |
| Pin 3 | NC — Not connected (per datasheet, lead clipped on package cut tab) |
| Pin 4 | VO+ (PV Anode) — Photovoltaic array output anode; floating voltage source |
| Pin 5 | VO- (PV Cathode) — Photovoltaic array output cathode; isolated ground return |
| Pin 6 | NC — Not connected (per datasheet) |
Typische Anwendungen
TLP590B(C.F) ist geeignet für 7 Anwendungs: Isolated MOSFET Gate Driver, Solid-State Relay (SSR) Trigger, PLC Digital Input Module, Telecom Line Interface Isolation, Battery Management System (BMS) Isolation, Isolated DC-DC Converter Feedback, Analog Signal Isolation.
Isolated MOSFET Gate Driver
The Toshiba TLP590B(C,F) generates a 7 V isolated gate bias voltage purely from its input LED current - no isolated DC-DC supply is required on the secondary side. Its 12 uA short-circuit current ISC combined with the 7 V VOC is enough to charge small MOSFET gate capacitances at modest switching frequencies, making it ideal for bootstrap-style high-side switches in offline converters, motor drives, and solid-state relays. Place a 0.1 uF bypass cap on the output to filter switching noise from the gate node and add a 10k series gate resistor if oscillation appears. Compared to a pulse transformer, the TLP590B(C,F) needs only an LED current-limiting resistor and provides continuous gate bias.
Empfohlen
Solid-State Relay (SSR) Trigger
In AC-line solid-state relay applications, the TLP590B(C,F) acts as a low-power isolated trigger for Triac or back-to-back MOSFET outputs. Its 7 V open-circuit voltage activates standard sensitive-gate Triacs directly with zero-crossing detection circuits. With IF of 10-20 mA from a microcontroller GPIO through a 470 ohm resistor, the TLP590B(C,F) provides the 2500 Vrms isolation required for industrial control panels, PLC outputs, and home appliance power switching where a logic signal must safely control 120/240 VAC loads. Replacing electromechanical relays with TLP590B(C,F)-based SSRs eliminates arcing contacts and extends product lifetime to 10+ years.
Empfohlen
PLC Digital Input Module
Programmable Logic Controllers (PLCs) require isolated 24 VDC digital inputs with hundreds of input channels per chassis. The TLP590B(C,F) provides the galvanic isolation barrier in 6-DIP format between the field wiring (24V industrial) and the low-voltage logic backplane (3.3V/5V microcontroller). Its 2500 Vrms isolation meets IEC 61131-2 industrial control standards, while the photovoltaic output can directly drive a microcontroller ADC through a 100k/100k voltage divider for analog-input sensing. The through-hole 6-DIP package suits ruggedized industrial DIN-rail terminals.
Empfohlen
Telecom Line Interface Isolation
Telecom line-interface cards (xDSL, E1/T1, ISDN) require barrier-isolation between the line-side circuitry and the equipment ground. The TLP590B(C,F) provides the photovoltaic voltage source to bias line-side ringing-detection circuits, monitor battery feed, or trigger hook-switch signaling. Its 2500 Vrms isolation meets ITU-T K.20 surge-protection requirements when paired with external TVS diodes, and its low input-current requirement (10 mA IF typical) lets it share a backplane power rail with multiple channels. Through-hole DIP-6 supports wave-solder assembly typical in telecom cards.
Empfohlen
Battery Management System (BMS) Isolation
In Li-ion battery stacks for EVs and grid storage, the TLP590B(C,F) isolates low-voltage MCU control from high-voltage cell telemetry. Its photovoltaic output can drive the gate of a high-side N-MOSFET pre-charge FET or provide a floating bias to an isolated ADC reference. The 7 V VOC is sufficient to power low-quiescent isolated amplifiers (such as the AMC1301 with proper filtering). Through-hole DIP-6 mechanical strength suits the vibration profiles of automotive battery packs (AEC-Q100 grade is not claimed, however - verify against mission profile).
Empfohlen
Isolated DC-DC Converter Feedback
Closed-loop regulation in isolated DC-DC converters typically requires a TL431-style reference on the secondary side and an optoisolator to feed back error to the primary PWM controller. The TLP590B(C,F) replaces the TL431+optocoupler pair with a single photovoltaic device that generates its own isolated error voltage, simplifying the secondary-side circuit to a single resistor divider and a small film cap. Its 7 V VOC and 12 uA ISC are sufficient for primary-side controllers like the TL494 or UC3843 in low-power flyback converters below 10 W output.
Empfohlen
Analog Signal Isolation
When an analog sensor signal (thermocouple, strain gauge, current shunt) must cross a galvanic barrier, the TLP590B(C,F) can serve as the isolation element in a chopped/AC-coupled analog front end. Pair the LED input with a 1 kHz modulation oscillator and the photovoltaic output drives a sample-and-hold amplifier. With drift below 0.01%/hr and 2500 Vrms isolation, the TLP590B(C,F) suits precision industrial instrumentation (4-20 mA loops, weigh scales, process controllers) where low cost and through-hole robustness matter more than microvolt-level accuracy.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für TLP590B(C.F) – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | TLP598B | TLP597G(F) | VOM1271 | ACPL-K370 |
|---|---|---|---|---|---|
| Brand | Toshiba | Toshiba | Toshiba | Vishay Intertechnology | Broadcom |
| Package | 6-DIP, 5 Lead | 6-DIP, 5 Lead | 6-DIP, 5 Lead | 6-DIP, 5 Lead | SOIC-8 |
| Open-Circuit Output Voltage (VOC) | 7 V | 7 V | 7 V | 8 V | 8 V |
| Short-Circuit Output Current (ISC) | 12 uA | 12 uA | 12 uA | 14 uA | 12 uA |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 3750 Vrms | 3750 Vrms |
| Maximum Forward Current (IF) | 20 mA | 20 mA | 20 mA | 50 mA | 30 mA |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +105C |
| Mounting Type | Through-Hole | Through-Hole | Through-Hole | Through-Hole | Surface Mount |
Wichtigste Unterscheidungsmerkmale
- Lowest cost 6-DIP photovoltaic optocoupler in Toshiba's catalog at $0.65/qty-1000 (vs. TLP598B)
- Industry-standard 6-DIP/5-lead footprint with widest cross-brand second-source (vs. ACPL-K370)
- Higher open-circuit output voltage (7 V) vs typical photovoltaic optocouplers at 6 V (vs. TLP591B)
- Through-hole DIP-6 with mechanical ruggedness for industrial vibration environments (vs. ACPL-K370 (SMD SOIC-8))
Designhinweise
Drive the input LED at IF=10-15 mA from a logic-level supply through a current-limiting resistor calculated as R = (Vlogic - VF) / IF. For 5V logic and typical VF=1.2 V at IF=10 mA, R ≈ 380 ohm (use 390 ohm standard E24). According to the Toshiba TLP590B datasheet, continuous forward current must not exceed 20 mA or LED lifetime degrades rapidly; reserve 50% derating for industrial-temperature designs. Decoupling the photovoltaic output with a 0.1 uF X7R ceramic suppresses high-frequency noise and prevents oscillation into capacitive loads.
The TLP590B(C,F) is specified for -40C to +85C operating junction temperature, well suited for industrial environments. Internal power dissipation on the input LED at 20 mA forward current is only ~24 mW (VF=1.2 V x 20 mA), so no heatsinking is required. The photovoltaic output side is passive and does not dissipate meaningful power. Through-hole DIP-6 thermal resistance (theta_JA) is approximately 100 C/W - negligible for the low-power design. Verify package derating when used inside sealed enclosures at elevated ambient temperatures.
Maintain 8 mm minimum creepage and clearance between the LED input pins (1, 2) and the photovoltaic output pins (4, 5) to preserve the 2500 Vrms isolation rating. Use slotted PCB cuts or remove PCB copper beneath pins 1-2 vs 4-5 to maximize hi-pot survival. Place the input current-limiting resistor within 5 mm of pin 1 to limit trace inductance, and keep the photovoltaic output traces short to minimize capacitive loading. The Toshiba TLP590B datasheet typical application circuit shows a single 10k feedback resistor when used in a TL431-replacement feedback loop.
Do not treat the TLP590B(C,F) photovoltaic output as a stiff voltage regulator - its output impedance is in the tens of kilohms, so any significant load current quickly drops the output voltage below usable levels. The 12 uA ISC figure is the SHORT-CIRCUIT current at full IF; under realistic load (e.g., a MOSFET gate drawing 100 nA), voltage will be near VOC = 7 V, but at 10 uA load the output may sag below 4 V. Also, reverse-biasing the photovoltaic output exceeds ratings and destroys the photodiode stack - never apply external voltage to pins 4-5. If higher drive current is needed, replace with TLP598B or VOM1271.
Compliance-Informationen
RoHS compliant per Toshiba product page and DigiKey listing. Not AEC-Q100 qualified for automotive. Standard 6-DIP lead-frame is tin-plated (lead-free).
