TLP7820(D4ATP4 - 5 kVrms Isolation Amplifier | Toshiba
MPN: TLP7820(D4ATP4 ✓ فعالTLP7820(D4ATP4 نمای کلی
An isolation amplifier is an optically isolated analog-signal-conditioning IC that transfers a measurement from a high-potential or electrically noisy domain to a low-potential control domain while maintaining galvanic isolation. In the signal-chain hierarchy, it sits above current sensors and shunts as a precision interface, above analog amplifiers as an isolation-aware signal conditioner, and ultimately within the broader power-management and industrial-control semiconductor category. Its primary purpose is to improve system safety and measurement integrity when the sensed current is connected to a high-voltage power stage.
The key verified characteristics are the TLP7820 family's 5000 Vrms reinforced isolation capability, analog output topology, one-channel configuration, and 8-SO package. Toshiba positions the device for motor phase-current and voltage sensing in inverter systems, where accurate feedback is required to control power conversion. Its isolation barrier allows measurement information to cross the high-voltage boundary without a direct galvanic connection between the sensing side and the controller side.
Technically, the device belongs to Toshiba's optically isolated amplifier family rather than a conventional digital isolator. The verified distributor records describe it as a one-circuit differential isolation amplifier with an analog output. The supplied results do not provide detailed gain, offset, bandwidth, input-current, supply-voltage, common-mode, or accuracy figures, so those values should be confirmed in the Toshiba datasheet before selecting resistor values, setting filter bandwidth, or calculating a measurement error budget.
Typical applications include three-phase inverter motor control, industrial motor-drive feedback, servo-amplifier current monitoring, power-converter phase-current measurement, isolated power-supply diagnostics, and regenerative-energy system control. In each case, the amplifier can isolate the current-measurement path while conveying a differential analog representation to a controller or analog-to-digital converter.
Designers should verify the complete pin assignment, isolation ratings, supply requirements, recommended shunt and input network, and absolute maximum conditions from the manufacturer datasheet. PCB layout is critical: maintain the required creepage and clearance around the isolation barrier, keep the input-side and output-side return paths separate, and provide stable bypassing close to the relevant supply pins.
This product record combines the verified Toshiba product identity, isolation class, output type, package, and application positioning with transparent sourcing and a practical comparison framework. It distinguishes verified facts from parameters that require datasheet confirmation, helping engineers locate the correct TLP7820 ordering code without relying on ambiguous cross-reference listings.
جایگزین‌های drop-in برای TLP7820(D4ATP4 — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
TLP7820(D4,E
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
TLP7820(TP4,E
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
TLP7820(A-TP4,E
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
TLP7820(D4-TP4,E
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
TLP7820(A,E
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
TLP7820(D4ATP4 حداکثر مقادیر مجاز و مشخصات الکتریکی
| Product Type | Optically isolated analog-output isolation amplifier |
| Isolation Voltage | 5000 Vrms |
| Isolation Type | Photocoupler (isolation amplifier) |
| نوع خروجی | Analog |
| Channel Count | 1 channel |
| Input Signal | Differential |
| Primary Application | High-accuracy current sensing |
| Named Applications | Motor phase-current sensing and inverter current and voltage sensing |
| بسته‌بندی | SO8L (LF4) |
| Package Type | 8-pin surface-mount SO |
| نوع نصب | Surface mount |
راهنمای پیکربندی پین TLP7820(D4ATP4 8-pin surface-mount so
پیکربندی پین برای TLP7820(D4ATP4 (پکیج 8-pin surface-mount so). این قطعه آنالوگ دارای پین‌های ورودی، خروجی و تغذیه است. برای پیکربندی‌های پین offset null، جبران‌سازی و فعال‌سازی به دیتاشیت سازنده مراجعه کنید. ایده‌آل برای مدارهای شرطی‌سازی سیگنال و تقویت‌کننده.
داده پین‌آوت تفصیلی موجود نیست برای TLP7820(D4ATP4.
به دیتاشیت برای پیکربندی کامل پین‌ها.
کاربردهای معمول
TLP7820(D4ATP4 مناسب است برای 6 کاربردs: Three-Phase Inverter Motor Control, Servo Drive Current Feedback, Industrial Motor-Drive Diagnostics, Isolated Power-Converter Feedback, Renewable-Energy Inverter Control, Isolated Analog-to-Digital Front End.
Three-Phase Inverter Motor Control
The TLP7820(D4ATP4 fits inverter motor-control feedback because it combines a differential analog output with a verified 5000 Vrms isolation rating. It can condition a phase-current measurement taken in the high-voltage power stage and transfer that measurement to the controller domain without a direct galvanic connection. The one-channel isolation topology suits systems that monitor one phase at a time or use replicated sensing channels for multiple phases. Designers should select the shunt and input components using the manufacturer's gain and accuracy data, then confirm the required creepage and clearance across the isolation barrier. The 8-pin SO8L (LF4) package also supports compact sensing modules, although external filtering and supply bypassing remain essential for dependable motor-drive operation.
پیشنهادی
Servo Drive Current Feedback
The TLP7820(D4ATP4 is suitable for servo-amplifier current-feedback paths where a controller must monitor power-stage current while remaining electrically separated from it. Its differential analog input characterization helps present the sensed voltage as a balanced measurement, while the 5000 Vrms isolation rating supports systems with substantial potential between the motor and control domains. The isolated analog output can feed an analog-to-digital converter or control loop without transferring the high-side common-mode voltage. Before schematic release, verify the gain, offset, bandwidth, supply limits, and recommended shunt network against the Toshiba datasheet. PCB insulation barriers and separated ground domains are as important as the device rating because package creepage and clearance determine the achievable working voltage.
پیشنهادی
Industrial Motor-Drive Diagnostics
The TLP7820(D4ATP4 can provide an isolated measurement interface for industrial motor-drive diagnostics that monitor phase current or inverter voltage-related feedback. Its analog output preserves the measurement as a continuously variable signal rather than requiring a digital isolation path, making it appropriate for designs that already condition the sensed quantity with external analog circuitry. The verified one-channel configuration and 8-pin SO8L package permit replicated placement near several power modules. Engineers must ensure the measurement bandwidth suits the motor-control loop and that the isolation amplifier's supply and ground arrangement does not introduce common-mode coupling. Confirm the exact device limits, output scaling, and pin assignments from the official Toshiba documentation before production release.
پیشنهادی
Isolated Power-Converter Feedback
The TLP7820(D4ATP4 is appropriate for isolated feedback in power converters that need a current or voltage-related measurement transferred across a high-potential barrier. Toshiba's verified positioning for inverter current and voltage sensing supports use in power-conversion equipment where the control system must remain separated from switching nodes. The device's differential analog output can be scaled and filtered before digitization, helping retain useful signal information while maintaining isolation. The designer should calculate the complete error budget from shunt tolerance, amplifier gain error, offset, input network tolerance, reference accuracy, and ADC performance. No generic shunt or filter values are asserted here because the supplied excerpts do not provide the detailed gain and input-conditioning information required for a safe calculation.
پیشنهادی
Renewable-Energy Inverter Control
The TLP7820(D4ATP4 can serve as an isolated feedback device in renewable-energy inverters where generator or converter current must be measured across a large electrical potential. Its 5000 Vrms isolation rating and differential analog-output architecture provide the core functions needed to bridge a high-voltage sensing domain and a lower-voltage controller. The compact 8-pin SO8L package supports dense power-electronics modules, but isolation performance still depends on correct PCB creepage, clearance, barrier construction, and supply isolation. The engineer should verify operating-temperature limits, isolation duration, working voltage, and transfer characteristics from the manufacturer datasheet. An accurate selection must also account for the measured signal bandwidth and the control loop's required response time rather than relying on the isolation rating alone.
پیشنهادی
Isolated Analog-to-Digital Front End
The TLP7820(D4ATP4 can form the isolation boundary ahead of an analog-to-digital converter when a low-voltage controller must monitor a signal from a noisy or high-voltage power stage. The verified differential input characterization and analog output make the device appropriate for conditioning a shunt-derived measurement before conversion. Because the output remains analog, the downstream converter, reference, anti-alias filter, and gain distribution determine the final resolution and linearity. Designers should use the manufacturer's recommended input network and verify the common-mode and output ranges before choosing resistor or capacitor values. The 5000 Vrms isolation rating must not substitute for a PCB review: creepage, clearance, contamination, and package geometry determine whether the assembled system meets its target working voltage.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای TLP7820(D4ATP4 — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | TLP7820(D4,E | TLP7820(TP4,E | TLP7820(A-TP4,E | TLP7820(D4-TP4,E | TLP7820(A,E |
|---|---|---|---|---|---|---|
| Package | SO8L (LF4), 8-pin SO | SOIC-8 / 8-SO | SOIC-8 / 8-SO | SOIC-8 / 8-SO | SOIC-8 / 8-SO | SOIC-8 / 8-SO |
| Brand | Toshiba Semiconductor and Storage | Toshiba Semiconductor and Storage | Toshiba Semiconductor and Storage | Toshiba Semiconductor and Storage | Toshiba Semiconductor and Storage | Toshiba Semiconductor and Storage |
| Isolation Voltage | 5000 Vrms | 5000 Vrms | 5000 Vrms | 5000 Vrms | 5000 Vrms | 5000 Vrms |
| Output Type | Analog | Amplifier | Analog | Analog | Analog | Analog |
| Channel Count | 1 circuit | 1 circuit | 1 circuit | 1 circuit | 1 circuit | 1 circuit |
| Input Characteristics | Differential | Differential | Differential | Differential | Differential | Differential |
| Product Status | Active | Active | Active | Active | Active | Active |
| Primary Application | Current sensing and power management | Current sensing and power management | Current sensing and power management | Current sensing and power management | Current sensing and power management | Current sensing and power management |
تفاوت‌های کلیدی
- Purpose-built isolated current-sensing positioning (در مقابلTLP7820(D4,E)
- Same verified isolation and signal format across the TLP7820 family (در مقابلTLP7820(TP4,E)
- Explicit inverter and motor phase-current application support (در مقابلTLP7820(A-TP4,E)
- Compact isolated analog interface (در مقابلTLP7820(D4-TP4,E)
یادداشت‌های طراحی
Treat the isolation barrier as a PCB safety feature, not merely as a component rating. The verified 5000 Vrms isolation class is a device characteristic and does not determine the assembled system's working voltage by itself. Compare the datasheet's recommended creepage and clearance with the maximum transient voltage, pollution degree, material group, altitude, and applicable safety requirement. Keep copper, solder mask, and exposed conductive material from bridging the input-side and output-side isolation regions.
Route the high-voltage sensing connection and isolated output as separate circuit domains. Place the input network, shunt connection, isolation amplifier, and analog output path according to the manufacturer reference layout. Keep the output return on the controller side and avoid routing it beneath or alongside the high-potential input region. Provide local supply bypassing and a quiet return path so switching-node common-mode energy is not coupled into the measured analog signal.
Size the complete measurement chain from shunt tolerance through the TLP7820(D4ATP4 and downstream analog-to-digital conversion. The supplied data does not expose gain, offset, bandwidth, or common-mode limits, so those values must come from the Toshiba datasheet before selecting filter components or defining a control bandwidth. Verify that the analog output range remains valid over supply tolerance and temperature, and include anti-alias filtering only after confirming the isolation amplifier's usable frequency response.
Do not assume that every TLP7820 suffix is electrically and commercially identical based only on the shared family name and 8-SO package. The verified comparison results establish the family, isolation class, output type, and package, but suffix-specific gain, accuracy, packing, and ordering details remain important. Before substitution, compare the full Toshiba ordering table and datasheet, confirm production status, and obtain an approved manufacturer or authorized-distributor statement for the exact suffix being installed.
اطلاعات انطباق
The Toshiba document excerpt states that customers should contact a Toshiba sales representative for environmental information such as RoHS compatibility. No explicit compliance conclusion was present in the supplied data.
