TLP7920(F - 5000 Vrms Isolated Amplifier | Toshiba
料号： TLP7920(F ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.1009 | $2.10 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
TLP7920(F 概述
An isolation amplifier is an analog signal-conditioning IC that transfers a measured voltage across a galvanic isolation barrier while providing high common-mode rejection and preventing dangerous ground loops. The TLP7920(F belongs to the broader isolation-amplifier and optoelectronics hierarchy, combining an internal phototransistor isolation mechanism with analog amplification. Its differential input arrangement is suited to sensing the voltage developed across a current-sense resistor in a motor-drive power stage.
The verified manufacturer material specifically positions the TLP7920 and TLP7920F for current sensing in electronic motor drives. The datasheet search result states that motor current flows through an external resistor and the resulting analog voltage drop is sensed by the device. This makes the part applicable to inverter control, motor phase monitoring, power-factor correction equipment, and isolated industrial measurement interfaces.
The TLP7920F variant is associated with an 8-DIP package and analog output. Its isolation rating of 5000 Vrms supports designs that require reinforced separation between a high-side or power-stage sensing node and downstream control circuitry. The device is not a general-purpose precision op-amp; its application depends on the external current-sense resistor, input network, supply arrangement, isolation barrier, and analog output connection described in the Toshiba datasheet.
For motor-control use, place the isolation amplifier at the power-conversion interface and connect its inputs across the selected sense resistor. Keep the high-voltage and isolated signal paths physically separated from control-side traces, maintain the datasheet-defined creepage and clearance requirements, and route analog output wiring away from switching nodes. This page combines verified manufacturer and distributor information, available cross-reference results, and practical engineering guidance without inventing missing electrical parameters.
直接替换替代料： TLP7920(F ——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：
TLP7920(D4-A,F
✅ 直接替换📋 参考替代料（不在目录中）
TLP7920(D4,F
✅ 直接替换📋 参考替代料（不在目录中）
TLP7920(D4-TP1,F
✅ 直接替换📋 参考替代料（不在目录中）
TLP7920(D4-LF1,F
✅ 直接替换📋 参考替代料（不在目录中）
TLP7920(F 最大额定值与电气特性
| Product Type | Optically isolated amplification IC |
| Isolation Amplifier Circuit Count | 1 circuit |
| Input Type | Differential |
| 输出类型 | Analog |
| Isolation Voltage | 5000 Vrms |
| 封装 | 8-DIP |
| Primary Application | Motor phase current and voltage sensing |
| Secondary Application | Inverter current and voltage sensing |
| 工作温度范围 | -40 °C to +105 °C |
| Minimum Common-Mode Transient Immunity | 15 kV/µs |
| Technology | Optocoupler-based isolation amplifier |
| 安装类型 | Through-hole |
| Operating Principle | External current-sense resistor voltage measurement |
| Manufacturer Product Category | Isolation Amplifiers & Isolated Delta-Sigma Modulators |
| Datasheet Document Availability | Manufacturer datasheet available |
TLP7920(F 8-dip 引脚配置指南
TLP7920(F（8-dip 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： TLP7920(F.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TLP7920(F 适用于 6 应用s: Motor Phase Current Sensing, Inverter Current Monitoring, High-Side Voltage Sensing, Industrial Drive Feedback, Power-Factor Correction Feedback, Isolated Analog Sensor Interface.
Motor Phase Current Sensing
The TLP7920(F) fits motor phase current sensing because Toshiba identifies the device for electronic motor drives, where current flows through an external resistor and produces an analog voltage drop. Its differential input architecture can monitor the two ends of that sense resistor while the 5000 Vrms isolation barrier separates the power-stage domain from the controller. The design should verify sense-resistor value, input range, bandwidth, gain, and output scaling against the official datasheet.
推荐
Inverter Current Monitoring
The TLP7920(F) is suitable for inverter current monitoring when a shunt resistor measures the controlled current and the resulting analog voltage must be transferred across an isolation boundary. The 5000 Vrms isolation rating helps keep the switching-side measurement separate from low-voltage control electronics. Designers should account for switching-node transients, common-mode immunity, PCB creepage and clearance, and the device's 15 kV/µs minimum transient-immunity specification.
推荐
High-Side Voltage Sensing
The TLP7920(F) can support isolated voltage sensing when a power-conversion circuit produces a differential analog voltage across an external network or sense element. Differential input reduces sensitivity to common-mode voltage in suitable measurement arrangements, while optical isolation provides a physical separation between the measured power domain and downstream electronics. The exact input voltage, accuracy, offset, and frequency-response limits must be confirmed from the manufacturer datasheet before setting the divider or shunt network.
推荐
Industrial Drive Feedback
The TLP7920(F) is appropriate for industrial drive feedback where a current or voltage measurement must cross from a noisy power-conversion stage into a control system. Its analog output can be connected to downstream signal conditioning or an ADC, while the isolation barrier helps control ground potential and common-mode transients. The 8-DIP through-hole package is useful where leaded construction and straightforward point-to-point routing are preferred over a compact surface-mount isolator.
推荐
Power-Factor Correction Feedback
The TLP7920(F) can be used in power-factor-correction systems that require isolated current or voltage feedback from a switching stage. The device's differential analog measurement and 5000 Vrms isolation are useful where the feedback signal originates in a high-energy power rail. Designers should place the sense element and isolation amplifier according to the manufacturer's application guidance, minimize switching-node coupling, and verify that the control loop bandwidth is compatible with the amplifier response.
推荐
Isolated Analog Sensor Interface
The TLP7920(F) can serve as an isolated analog sensor interface when the sensed quantity is represented as a differential voltage and the measurement must remain separated from the host electronics. The optical isolation amplifier provides analog transfer rather than a digital sensor bus, allowing the output to be filtered or digitized locally. The exact gain, bandwidth, input offset, output range, and supply requirements must be taken from the TLP7920 datasheet; the verified excerpts do not provide those values.
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推荐产品汇总
工程参考数据： TLP7920(F ——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 | TLP7920(D4-A,F | TLP7920(D4,F | TLP7920(D4-TP1,F | TLP7920(D4-LF1,F |
|---|---|---|---|---|---|
| Brand | Toshiba Semiconductor and Storage | Toshiba Semiconductor and Storage | Toshiba Semiconductor and Storage | Toshiba Semiconductor and Storage | Toshiba Semiconductor and Storage |
关键差异点
- Verified 5000 Vrms isolation rating for power-stage feedback （对比 TLP7920(D4-A,F)
- Motor-current sensing is an explicitly documented use case （对比 TLP7920(D4,F)
- Analog differential output in a through-hole 8-DIP package （对比 TLP7920(D4-TP1,F)
- Confirmed industrial temperature operation （对比 TLP7920(D4-LF1,F)
设计说明
Keep the isolated input network and the isolation-amplifier input pins physically separated from the output-side controller ground and analog traces. Follow the Toshiba datasheet package and isolation guidance for the 8-DIP footprint, preserve the specified creepage and clearance, and avoid routing signals beneath the isolation barrier when that could compromise insulation coordination. Confirm the final layout against the product's isolation and safety requirements.
Use the differential input arrangement across the external current-sense resistor so the measured voltage is defined relative to the intended sense pair rather than a single noisy switching node. Place the sense resistor and input connections according to the Toshiba application guidance, keep loop area small, and route the output away from power inductors, switching nodes, and gate-drive traces. The verified data does not provide bandwidth, gain, or input-range values, so those must be checked before compensation design.
Do not treat the 5000 Vrms isolation rating as a substitute for a complete safety design. Verify working voltage, insulation type, creepage, clearance, transient immunity, pollution degree, and applicable certification requirements in the datasheet and system standards. Also confirm the exact TLP7920(F ordering code and pinout before substituting a related TLP7920 variant; the available cross-reference results contain ordering-code variants and one package-detail warning.
合规信息
The supplied distributor and manufacturer excerpts do not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations for TLP7920(F). These values remain unknown rather than being inferred from the package or manufacturer.