TLP7820(TP4 - 5000 Vrms Isolation Amplifier | Toshiba
料号： TLP7820(TP4 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.1049 | $2.10 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
TLP7820(TP4 概述
An isolation amplifier is a current-isolated signal-conditioning device that transfers a measurement from a high-voltage or high-side domain to a local control domain while limiting conductive coupling. In the broader hierarchy, it belongs to isolated signal-conditioning ICs, interface ICs, and power-management measurement systems. This category is useful when a controller, inverter, or safety system must measure shunt voltage without connecting the measurement ground directly to the high-side power stage.
The TLP7820 is designed to sense the voltage generated by an external current-sense resistor. Toshiba describes the typical implementation as motor current flowing through an external resistor, with the resulting analog voltage drop applied to the isolation amplifier. The isolated analog output is then available to a controller for current regulation, protection, diagnostics, and power-converter control.
Its 5000 Vrms isolation rating is the principal verified headline specification. The manufacturer lists the device in an SO8L (LF4) package, while distributor records also describe an 8-pin SO surface-mount package. Because the supplied data does not expose the complete electrical tables, input offset, bandwidth, supply voltage, output range, common-mode range, creepage, or temperature limits, those values are intentionally marked as data-needed rather than inferred.
Typical applications include motor phase-current sensing, inverter current sensing, electronic motor drives, power-management monitoring, and isolated analog measurement. In each circuit, the external shunt defines the current-to-voltage conversion, while the isolation amplifier provides the signal transfer into the control domain.
Designers should verify the complete pinout, isolation creepage, recommended shunt network, decoupling, output filtering, and control-loop bandwidth against the manufacturer datasheet before layout release. The isolation barrier must be implemented with suitable board spacing and cleanliness, and the analog output path should avoid excessive parasitic capacitance.
This page combines verified manufacturer and distributor information with explicit data gaps, application guidance, and sourcing context. Because the supplied search results do not establish exact pin-to-pin substitute MPNs, no alternatives are presented as drop-in parts without further verification.
直接替换替代料： TLP7820(TP4 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
TLP7820(A-TP4,E
✅ 直接替换📋 参考替代料（不在目录中）
TLP7820(B-TP4,E
✅ 直接替换📋 参考替代料（不在目录中）
TLP7820(TP4,E(O
✅ 直接替换📋 参考替代料（不在目录中）
TLP7820(B,E
✅ 直接替换📋 参考替代料（不在目录中）
TLP7820(A-TP4,E
✅ 直接替换📋 参考替代料（不在目录中）
TLP7820(TP4 最大额定值与电气特性
| Product Type | Optically isolated analog isolation amplifier |
| Isolation Voltage | 5000 Vrms |
| 输出类型 | Analog output |
| Application Category | Motor phase current and voltage sensing |
| Primary Application | Electronic motor drives and inverters |
| Input Measurement Method | External current-sense resistor voltage sensing |
| Isolation Technology | Photocoupler-based signal isolation |
| Circuit Count | 1 circuit |
| 封装 | SO8L (LF4) |
| Distributor Package Description | 8-SO surface-mount package |
| 安装类型 | Surface mount |
TLP7820(TP4 8-so surface-mount package 引脚配置指南
TLP7820(TP4（8-so surface-mount package 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： TLP7820(TP4.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TLP7820(TP4 适用于 6 应用s: Motor Phase-Current Sensing, Inverter Current Sensing, Power-Management Monitoring, Electronic Motor Drives, Industrial Current-Sense Acquisition, High-Side Shunt Measurement.
Motor Phase-Current Sensing
The Toshiba TLP7820(TP4 fits motor phase-current sensing because Toshiba identifies it for electronic motor drives and describes sensing the voltage generated by an external current-sense resistor. Place the shunt in the phase-current path, connect its measurement voltage to the input network, and use the isolated analog output in the controller. The verified 5000 Vrms isolation rating supports separation between the power stage and control circuitry. Exact shunt value, input range, gain, bandwidth, and output calibration must be taken from the manufacturer datasheet.
推荐
Inverter Current Sensing
TLP7820(TP4 is explicitly associated by Toshiba with inverter current and voltage sensing. Its isolation-amplifier architecture allows a measured shunt voltage to be transferred across an isolation barrier to a local controller, helping separate high-side power-stage wiring from sensitive control electronics. The verified SO8L (LF4) package and 5000 Vrms isolation rating provide the principal placement constraints. Designers must still verify input common-mode range, propagation delay, bandwidth, and fault behavior before using it in a particular inverter topology.
推荐
Power-Management Monitoring
The TLP7820(TP4 can be used when power-management equipment needs an isolated measurement from a current-sense resistor. Toshiba classifies the device as an isolation amplifier and isolated delta-sigma modulator family product, while the verified result specifically emphasizes analog output and motor-related sensing. In a monitoring system, the shunt converts current to voltage, the TLP7820 transfers the signal across the isolation barrier, and a controller evaluates current limits or diagnostics. The complete signal-chain design requires verified supply, input, output, and timing specifications.
推荐
Electronic Motor Drives
TLP7820(TP4 is suited to electronic motor-drive current feedback because the manufacturer identifies motor phase-current sensing as a typical application. The external resistor produces a proportional voltage, and the isolation amplifier transfers that measurement to the drive controller while maintaining galvanic separation. The 5000 Vrms rating is the verified isolation headline, while the SO8L (LF4) package supports compact surface-mount layouts. The design must account for shunt Kelvin connections, input filtering, control-loop delay, and the isolation spacing required by the system.
推荐
Industrial Current-Sense Acquisition
TLP7820(TP4 can support isolated acquisition in industrial current-sense systems where a controller must not be galvanically tied to a high-current conductor. Toshiba’s verified product description identifies motor phase-current and voltage sensing, while the isolation-amplifier category makes the device relevant to industrial signal conditioning. The external shunt determines the measurement scale, and the isolated analog output feeds acquisition or protection circuitry. Before schematic release, confirm the exact input range, offset behavior, bandwidth, supply requirements, creepage, and clearance from the manufacturer datasheet.
推荐
High-Side Shunt Measurement
The TLP7820(TP4 is a candidate for high-side shunt measurement when the sensed conductor is electrically separated from the controller. The verified manufacturer result specifically describes sensing the voltage drop across an external resistor, which is the basic sensing arrangement used for phase-current feedback. The isolation amplifier then transfers the analog measurement to the control side, reducing common-mode coupling and ground-loop risk. Actual selection requires checking the input common-mode voltage, shunt impedance, input bias behavior, output range, response time, and isolation creepage.
推荐
推荐产品汇总
工程参考数据： TLP7820(TP4 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TLP7820(A-TP4,E | TLP7820(B-TP4,E | TLP7820(TP4,E(O | TLP7820(B,E | TLP7820(A-TP4,E |
|---|---|---|---|---|---|---|
| Product Type | Optically isolated analog isolation amplifier | TLP7820-related isolation amplifier | TLP7820-related isolation amplifier | TLP7820 isolation amplifier | TLP7820-related isolation amplifier | TLP7820-related isolation amplifier |
| Brand | Toshiba | Toshiba | Toshiba | Toshiba | Toshiba | Toshiba |
| Package | SO8L (LF4) | SO8L (LF4) | SO8L (LF4) | SO8L (LF4) | SO8L (LF4) | SO8L (LF4) |
| Mounting Type | Surface mount | Surface mount | Surface mount | Surface mount | Surface mount | Surface mount |
关键差异点
- Verified isolation rating （对比 TLP7820(A-TP4,E)
- Application-specific positioning （对比 TLP7820(B-TP4,E)
- Manufacturer-family continuity （对比 TLP7820(TP4,E(O)
设计说明
Treat the isolation barrier as a layout constraint, not only an electrical feature. Keep the input-side and output-side copper regions separated according to the Toshiba recommended footprint and the required working voltage. The verified data confirms 5000 Vrms isolation, but it does not provide exact creepage or clearance dimensions; obtain those values from the manufacturer datasheet before routing PCB traces or placing test points.
Do not assume that every similarly named TLP7820 ordering code is electrically identical. The supplied search results identify several TLP7820 variants, but the snippets do not expose complete pinout, supply, input-range, output-range, or qualification data. Verify the exact suffix, pin functions, lifecycle status, and electrical tables against the ordering-code-specific manufacturer documentation before releasing a replacement or alternate BOM.
The isolated analog measurement path should use short, well-controlled routing and the input/output network specified by Toshiba. External shunt resistance, Kelvin connection quality, input capacitance, filtering, and controller sampling time can alter the apparent current measurement. Because the supplied data does not state bandwidth, propagation delay, or common-mode range, validate the complete shunt-to-controller signal chain with the manufacturer’s recommended values and measured operating conditions.
合规信息
The supplied verified snippets do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. A Toshiba document result references EN IEC 60747-5-5 option D4, but the supplied material does not establish the requested field-by-field compliance statuses.
