L6783ATR - Power Supply Op Amp | STMicroelectronics
부품 번호: L6783ATR ✓ 활성L6783ATR 개요
An operational amplifier, commonly called an op amp, is an analog integrated circuit that uses high open-loop gain to amplify the difference between two input voltages. The operational-amplifier category belongs to the broader linear-IC and amplifier-IC hierarchy, where precision gain, low distortion, stability, and output-drive capability determine suitability. A power-supply-oriented op amp is commonly selected when the signal or feedback node must operate from a supply rail higher than that of a conventional low-voltage amplifier.
The L6783ATR's principal verified identifiers are its manufacturer, MPN, power-supply amplifier classification, active lifecycle status, and 8-pin SOIC package. Its “ATR” ordering suffix is associated with tape-and-reel production packaging, making it suitable for automated surface-mount assembly. Numerical electrical ratings are not reproduced on the supplied distributor search pages, so they are deliberately marked as data needed rather than inferred from unrelated amplifier families.
A proper design review should begin with the STMicroelectronics L6783 datasheet, including its input common-mode range, output swing, supply-voltage limits, unity-gain stability, noise, offset voltage, slew rate, and recommended application circuit. These parameters determine whether the amplifier can directly drive the intended load or whether a buffer stage is required. The exposed thermal behavior of the SOIC package must also be checked against the dissipation expected at the selected supply voltage and output current.
Typical design contexts include power-supply feedback and error-amplifier positions, current-control loops, analog signal conditioning, and instrumentation interfaces. In each case, the L6783ATR must operate inside its verified voltage and common-mode limits, maintain loop stability, and preserve signal integrity at the required bandwidth. Because those limits are absent from the supplied data, final suitability must be confirmed against the manufacturer documentation.
For PCB implementation, place the device close to its feedback and compensation components, provide a low-impedance ground return, and decouple each supply pin with the capacitance and layout explicitly recommended by the manufacturer. Avoid adding external compensation unless the application circuit and stability analysis support it, since unnecessary components can alter bandwidth and transient response.
This page consolidates the verified manufacturer identity, active status, distributor references, package information, ordering suffix, and source links while clearly separating unknown electrical data. It also provides replacement-search guidance and engineering checks without fabricating amplifier ratings or unsupported drop-in cross-references.
드롭인 대체품: L6783ATR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청L6783ATR 최대 정격 & 전기적 특성
| Manufacturer | STMicroelectronics |
| Product Type | Power supply operational amplifier |
| Series | L6783 |
| Manufacturer Part Number | L6783ATR |
| 패키지 | 8-pin SOIC |
| 실장 유형 | Surface mount |
| Shipping Format | Tape and reel |
| 수명 주기 상태 | Active |
L6783ATR 8-pin soic 핀 구성 가이드
L6783ATR(8-pin soic 패키지)의 핀 구성입니다. 이 아날로그 부품에는 입력, 출력, 전원 공급 핀이 있습니다. 오프셋 널, 보상, 인에이블 핀 구성은 제조사 데이터시트를 참조하십시오. 신호 컨디셔닝 및 증폭기 회로에 이상적입니다.
다음에 대한 상세 핀아웃 데이터 없음: L6783ATR.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
L6783ATR 적합 용도: 6 애플리케이션s: Power-Supply Voltage Feedback, Current-Control Loops, Analog Signal Conditioning, Instrumentation Interface, Precision Control Signal Amplifier, Line-Driver and Buffering Stage.
Power-Supply Voltage Feedback
The L6783ATR is relevant to a power-supply feedback position because the verified STMicroelectronics distributor data classifies it as an OPAMP POWER SUPPLY. It can serve as the error amplifier that compares a scaled output-voltage signal with a reference and drives the regulator's control stage. The 8-pin SOIC package supports compact surface-mount layouts, but final use requires confirmation of the manufacturer's compensation topology, DC input common-mode range, output swing, and stability with the intended power-stage pole. Without those verified ratings, the original reference circuit should be retained or recalculated before substitution.
Current-Control Loops
A current-control implementation can use the L6783ATR to amplify the difference between a measured current signal and a control reference, producing an error signal for a switching or linear power stage. Its verified power-supply amplifier classification makes that role consistent with the manufacturer's intended product family. The critical engineering checks are input common-mode range, small-signal and large-signal stability, output-current demand, and delay around the switching node. Because numerical ratings were absent from the supplied results, the manufacturer application circuit and datasheet must define the current-sense scale, compensation values, and maximum loop bandwidth.
Analog Signal Conditioning
The L6783ATR can be evaluated for analog signal-conditioning stages where an amplified voltage difference must drive a downstream measurement or control function. Its verified identity as an 8-pin SOIC power-supply operational amplifier identifies it as a candidate rather than confirming universal suitability. The designer must verify input bias current, offset, noise, gain-bandwidth product, output swing, and common-mode range at the actual signal levels. A useful comparison should preserve the original amplifier's stability and compensation behavior, particularly if the new stage drives a capacitive load or samples a high-voltage feedback divider.
Instrumentation Interface
For instrumentation interfaces, the L6783ATR could form part of an error or gain stage around sensors, dividers, or converters. The verified product records establish an active STMicroelectronics 8-pin SOIC amplifier in the power-supply category, allowing a preliminary footprint comparison with existing designs. It should not be approved solely from that classification: the signal path requires checked common-mode range, input noise, offset drift, output swing, and stability, while the instrumentation environment may also require documented RoHS, REACH, and temperature information. Those compliance and electrical details are not present in the supplied search data.
Precision Control Signal Amplifier
The L6783ATR is a candidate for amplifying a low-level control error in a regulated power architecture because the verified listings identify it specifically with power-supply amplification. Its SOIC footprint can simplify reuse of an existing L6783 design, provided the exact pinout and application schematic match. Designers should calculate the closed-loop gain against the manufacturer's stability guidance and verify that input offset and drift remain acceptable over the intended temperature range. Any alternative must also preserve the supply polarity, reference pin behavior, output capability, and compensation network rather than merely matching package dimensions.
Line-Driver and Buffering Stage
The L6783ATR may be investigated as a line-driving or buffering element where the verified power-supply amplifier family provides an appropriate supply range and output capability. The confirmed 8-pin SOIC package is convenient for conventional surface-mount assembly, but the supplied data does not establish output-current capacity, slew rate, capacitive-load stability, or output-voltage swing. Those values determine whether direct loading is practical. If the load is capacitive, long cables, or another switching stage, include an isolation resistor or additional buffer only after checking the manufacturer's recommended output-network and stability information.
엔지니어링 참조 데이터: L6783ATR — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 |
|---|---|
| Package | 8-pin SOIC |
| Brand | STMicroelectronics |
| Product Type | Power-supply operational amplifier |
| Lifecycle Status | Active |
| Shipping Format | Tape and reel |
주요 차별점
- Purpose-defined power-supply amplifier family (vs Generic 8-pin SOIC operational amplifiers)
- Active manufacturer lifecycle status (vs Obsolete or NRND amplifier alternatives)
- Production-oriented ordering format (vs Non-tape-and-reel order codes)
설계 노트
Follow the STMicroelectronics L6783 recommended PCB layout before changing component values or trace geometry. Keep feedback and compensation paths short, provide a continuous ground reference beneath and around the device, and place the prescribed supply bypass capacitors adjacent to their corresponding pins. The verified data confirms an 8-pin SOIC package but does not provide capacitor values or a complete pin map, so obtain those details from the manufacturer datasheet before releasing artwork.
Check the amplifier's input common-mode range and output swing against the complete operating envelope, including startup, load transients, and regulator-control excursions. A power-supply feedback error amplifier may operate near its output limits even when its nominal supply is rated correctly. The supplied results do not disclose those limits, so use manufacturer minimum and maximum values rather than inferring headroom from the supply rail or from a generic low-voltage op amp.
Do not select a replacement solely because it is described as a power-supply op amp or uses an 8-pin SOIC package. Confirm the physical lead pitch, exposed or non-exposed package dimensions, pin sequence, input-output assignments, supply polarity, offset pin implementation, common-mode range, output swing, and compensation requirements. The verified cross-reference search returned generic tools rather than confirmed substitute MPNs, so any proposed replacement must be checked against both STMicroelectronics documents.
Estimate amplifier dissipation from its actual supply voltage, output voltage, and load current after obtaining the verified quiescent-current and output-current ratings. Then compare the resulting junction-temperature margin with the manufacturer's package thermal information. The supplied records do not contain thermal resistance or maximum junction temperature, so no numerical estimate is presented here. Use PCB copper and thermal design appropriate to the verified SOIC package rather than assuming that a low-voltage rail guarantees negligible heating.
Analyze closed-loop stability with the actual feedback divider, compensation components, load, and source impedance. The L6783ATR's role in a power-supply control loop can make parasitic poles and measurement-node noise as important as nominal gain-bandwidth. Because the supplied data does not contain GBW, slew rate, noise, or compensation guidance, reproduce the manufacturer's application topology first and measure loop response before changing values or increasing control bandwidth.
규정 준수 정보
The supplied verified search results do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for L6783ATR.