TCA0372DWG - 1A Dual Power Op Amp | onsemi | 16-SOIC
MPN: TCA0372DWG ✓ Hoạt độngTCA0372DWG Tóm tắt
A power operational amplifier is a high-current amplifier that sits between a low-power control signal and a load such as a motor, solenoid, actuator, or power-conversion stage. It belongs to the operational-amplifier hierarchy, amplifier family, and broader analog and power-management semiconductor categories. Unlike a conventional low-current signal op amp, a power op amp is intended to provide substantially greater load-driving capability while preserving closed-loop control of voltage or current.
Key characteristics of the TCA0372DWG include 1.0 A output current, a 1.4 MHz gain-bandwidth product, and a 1.3 V/µs slew rate. Its operating supply range extends from 5 V to 40 V, making it appropriate for industrial, audio, servo, and power-control systems that operate above conventional ±15 V laboratory supply levels. The device also uses a no-deadband output architecture, which improves behavior when driving inductive coils.
The TCA0372 is a monolithic dual circuit, allowing independent use of the two amplifier sections when their supply and thermal requirements permit. Its 1.4 MHz bandwidth supports applications requiring more bandwidth than a slow power-buffer stage while its 1.3 V/µs slew rate provides comparatively fast voltage transitions. These characteristics make it suitable for audio power stages, servo loops, motor-control paths, and power-supply control loops.
Typical applications include servo amplifiers, regulated power supplies, audio amplifiers, motor drivers, actuator controllers, and coil drivers. The 1.0 A output capability is important when the load draws substantially more current than a standard precision op amp can deliver. Designers should still evaluate the SOA limits, supply capability, output saturation, load impedance, and thermal dissipation for the exact operating conditions.
For reliable layout, keep feedback and compensation components close to the amplifier pins, provide robust supply decoupling, and use a PCB copper area that can remove heat generated at high output current. Avoid driving the output into excessive capacitive loads, and include current limiting or protection where the connected coil or actuator can present an unusual startup transient.
This product data consolidates the manufacturer specifications, package information, sourcing details, same-family alternatives, comparison parameters, and practical design guidance into an engineering-oriented reference for selecting and implementing the TCA0372DWG.
Bộ thay thế dễ dàng lắp đặt cho TCA0372DWG — 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 TCA0372DWG (cùng hình factor và footprint) — khác nhau ở Package.
TCA0372DWR2G
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TCA0372DW
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TCA0372BDP1G
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TCA0372BDWR2G
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TCA0372DWG Tỷ lệ tối đa & tính chất điện
| Amplifier Type | Dual power operational amplifier |
| Number of Channels | 2 channels |
| Điện áp tối đa đầu ra | 1.0 A |
| Supply Voltage Range | 5 V to 40 V |
| Gain-Bandwidth Product | 1.4 MHz |
| Slew Rate | 1.3 V/µs |
| Nominal Test Supply | ±15 V |
| Hộp | 16-pin SOIC |
| Kiểu lắp đặt | Surface mount |
| Circuit Configuration | 2 amplifier circuits |
| Crossover Distortion | No deadband crossover distortion |
| Primary Output Topology | Power operational amplifier |
| Typical Load Capability | Coil and servo loads |
Hướng dẫn cấu hình chân TCA0372DWG 16-pin soic
Cấu hình chân cho TCA0372DWG (16-pin soic 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 TCA0372DWG.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Khu vực hoạt động an toàn
Ứng dụng tiêu biểu
TCA0372DWG phù hợp cho 6 Áp dụngs: Servo Amplifier Output Stage, Coil and Solenoid Driver, Power-Supply Control Amplifier, Audio Power Buffer, Industrial Motor Control Signal Path, Actuator and Robotics Interface.
Servo Amplifier Output Stage
The TCA0372DWG fits servo-amplifier output stages that require substantially more load current than a conventional op amp can provide. Its 1.0 A output rating, 1.4 MHz gain-bandwidth product, and 1.3 V/µs slew rate allow the amplifier to follow control-loop commands while driving servo coils or actuator windings. The no-deadband output characteristic reduces crossover distortion around the zero-output transition. At the circuit level, use the device as a closed-loop power buffer and include current limiting, flyback protection, and feedback compensation appropriate to the coil resistance and inductance. Verify operating points against the device SOA because an inductive load can momentarily demand more current than the steady-state winding current.
Được đề xuất
Coil and Solenoid Driver
The TCA0372DWG is suitable for precision coil-driving tasks because its dual channels can control separate inductive loads and its output stage provides up to 1.0 A. The 1.3 V/µs slew rate supports prompt current transitions, while the absence of deadband crossover distortion helps preserve small control commands around zero output. In a solenoid or actuator driver, the amplifier can be followed by a current-sense resistor and control loop, with a transistor stage added when the load exceeds the amplifier's safe operating area. External flyback or freewheel protection is essential because interruption of inductive current produces a high voltage that can damage the output stage. Select protection and current limits from the coil's resistance, inductance, and peak operating current.
Được đề xuất
Power-Supply Control Amplifier
The TCA0372DWG can serve as the power-buffer and error-amplifier stage in a power-supply control path. Its 1.0 A output capability is valuable when the feedback network must drive a power transistor or external regulator stage rather than only sense a high-impedance divider. The wide 5 V to 40 V operating range allows operation from split supplies or a higher industrial bus-derived rail, while the 1.4 MHz bandwidth supports loop compensation over a broader frequency range than a slow power buffer. Confirm the output-voltage swing, load capacitance, stability behavior, and SOA at the intended operating point. A power stage that demands more than 1.0 A should use a suitable external driver, with the TCA0372DWG providing high-current control drive.
Được đề xuất
Audio Power Buffer
The TCA0372DWG can act as the high-current buffer between an audio preamplifier and a power-output stage. Its 1.0 A output-current capability accommodates low-impedance speaker or amplifier-driver loads, while the 1.4 MHz gain-bandwidth product and 1.3 V/µs slew rate preserve signal dynamics within the device's operating limits. The dual package permits separate buffer channels in stereo or balanced audio circuitry when both channels share compatible loading. The no-deadband output architecture helps minimize transition distortion near the zero crossing. Audio design still requires checking output clipping, gain-bandwidth under load, thermal rise, and SOA at the lowest speaker impedance. A passive protection network and appropriate output filtering should be evaluated for each load.
Được đề xuất
Industrial Motor Control Signal Path
The TCA0372DWG is applicable to industrial motor-control circuits that use a power op amp to drive a control-stage load or actuator interface. Its 5 V to 40 V supply range is suitable for systems with more headroom than a conventional ±15 V laboratory supply, and the 1.0 A output capability provides a stronger drive than a signal-only amplifier. The 1.3 V/µs slew rate permits faster control-signal transitions, which can be important when processing position or current-command information. In implementation, keep feedback routing compact, isolate high-current switching nodes from precision inputs, and provide local supply bypassing. Because motor systems include severe transients, add appropriate clamp, snubber, and isolation measures and verify every operating combination against the amplifier SOA.
Được đề xuất
Actuator and Robotics Interface
The TCA0372DWG can provide high-current drive for compact actuator and robotics interfaces where a conventional dual op amp lacks adequate output capability. Two channels in one 16-pin SOIC allow coordinated use for position and current control, and the 1.0 A output current supports many small motor, voice-coil, and electromagnetic-actuator loads. Its 1.4 MHz bandwidth and 1.3 V/µs slew rate preserve command fidelity when the actuator requires rapid correction. The designer must account for motor-generated back-EMF, inductive turn-off voltage, and reflected load inertia. Use local decoupling, short feedback paths, robust current sensing, and flyback protection. Confirm that worst-case stall or startup current remains inside the SOA and package thermal limits.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TCA0372DWG — 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 | TCA0372DWR2G | TCA0372DW | TCA0372BDP1G | TCA0372BDWR2G |
|---|---|---|---|---|---|
| Brand | onsemi | onsemi | onsemi | onsemi | onsemi |
| Package | 16-pin SOIC | 16-pin SOIC | 16-pin SOIC | 16-pin SOIC | 16-pin SOIC |
| Amplifier Configuration | Dual power operational amplifier | Dual power operational amplifier | Dual power operational amplifier | Dual power operational amplifier | Dual power operational amplifier |
| Output Current | 1.0 A | 1.0 A family rating | 1.0 A | 1.0 A family rating | 1.0 A family rating |
| Gain-Bandwidth Product | 1.4 MHz | 1.4 MHz family rating | 1.4 MHz | 1.4 MHz family rating | 1.4 MHz family rating |
| Slew Rate | 1.3 V/µs | 1.3 V/µs family rating | 1.3 V/µs | 1.3 V/µs family rating | 1.3 V/µs family rating |
| Crossover Distortion | No deadband crossover distortion | No deadband crossover distortion | No deadband crossover distortion | No deadband crossover distortion | No deadband crossover distortion |
| Typical Applications | Servo amplifiers, power supplies, and coil drives | Servo amplifiers, power supplies, and coil drives | Servo amplifiers, power supplies, and coil drives | Servo amplifiers, power supplies, and coil drives | Servo amplifiers, power supplies, and coil drives |
Bảo phân biệt quan trọng
- Identified same-family 16-pin SOIC replacement base (vsTCA0372DWR2G)
- Documented no-deadband output behavior (vsTCA0372DW)
- Wide supply operation with high-current output (vsTCA0372BDWR2G)
Ghi chú thiết kế
Estimated: use the average output dissipation, P = VOUT × IOUT × conduction factor, plus supply and quiescent losses, to estimate junction heating. A worst-case load can create several watts even though the output-current rating is 1.0 A. Use the manufacturer thermal-resistance and maximum-junction-temperature tables with the actual PCB copper area. Avoid relying on a nominal 16-pin SOIC land pattern without considering heat spreading into surrounding copper.
Place the input, feedback, compensation, and decoupling components close to their associated pins. Keep high-current output paths short and separate from precision input traces to reduce coupling from the 1.3 V/µs output transitions. Provide a low-impedance ground return for each amplifier section, use symmetrical routing when both channels carry signals, and verify that output-current return paths do not share narrow traces with sensitive reference circuitry.
Do not assume that a 1.0 A output rating permits unrestricted operation at every voltage or into every load. Check the SOA graph and output limits for each combination of output voltage, load impedance, and duty cycle. Reactive loads can produce turn-off voltage spikes, while highly capacitive loads can cause instability. Add current limiting, flyback or freewheel protection, and output-series damping where required by the load and wiring.
Decouple the supply pins with short, low-inductance connections and place the nearest capacitor directly across the relevant supply and ground pins. Keep switching-regulator and motor-drive return currents out of the amplifier reference path. Because the TCA0372DWG supports a 5 V to 40 V operating range, verify the complete rail voltage during startup and transient conditions; excessive supply voltage can damage the device even when the nominal operating point is valid.
Thông tin tuân thủ
The onsemi family pages and comparison listings reference RoHS and REACH information, but no definitive status value for TCA0372DWG was established. AEC-Q100 status is also undetermined for this orderable suffix.