TLP7920(F - 5000 Vrms Isolated Amplifier | Toshiba
MPN: TLP7920(F ✓ Hoạt độngTLP7920(F Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho TLP7920(F — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với TLP7920(F (cùng hình factor và footprint) — khác nhau ở Mounting Type, Operating Temperature Range, Output Type.
TLP7920(D4-A,F
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TLP7920(D4,F
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TLP7920(D4-TP1,F
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TLP7920(D4-LF1,F
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TLP7920(F Tỷ lệ tối đa & tính chất điện
| Product Type | Optically isolated amplification IC |
| Isolation Amplifier Circuit Count | 1 circuit |
| Input Type | Differential |
| Kiểu đầu ra | Analog |
| Isolation Voltage | 5000 Vrms |
| Hộp | 8-DIP |
| Primary Application | Motor phase current and voltage sensing |
| Secondary Application | Inverter current and voltage sensing |
| Khoảng nhiệt độ hoạt động | -40 °C to +105 °C |
| Minimum Common-Mode Transient Immunity | 15 kV/µs |
| Technology | Optocoupler-based isolation amplifier |
| Kiểu lắp đặt | 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 |
Hướng dẫn cấu hình chân TLP7920(F 8-dip
Cấu hình chân cho TLP7920(F (8-dip gói). Thành phần số hiệu này có chân đầu vào, đầu ra và nguồn cung cấp. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết cấu hình chân bù, bù trừ và chân kích hoạt. Hoàn hảo cho điều kiện tín hiệu và mạch khuếch đại.
Không có dữ liệu chân cụ thể sẵn có cho TLP7920(F.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
TLP7920(F phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TLP7920(F — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Verified 5000 Vrms isolation rating for power-stage feedback (vsTLP7920(D4-A,F)
- Motor-current sensing is an explicitly documented use case (vsTLP7920(D4,F)
- Analog differential output in a through-hole 8-DIP package (vsTLP7920(D4-TP1,F)
- Confirmed industrial temperature operation (vsTLP7920(D4-LF1,F)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.