AP1661AP-G1 BCM PFC Controller | Diodes Incorporated
N.º de pieza: AP1661AP-G1 ✗ Fin de vida| Cant. | Precio unitario | Total |
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| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
AP1661AP-G1 Descripción general
A power-factor-correction controller is a power-management semiconductor used in AC-to-DC converters and switch-mode power supplies. Its role is to shape input current so that it is drawn in phase with the AC input voltage, improving true power factor and reducing reactive current. In the broader hierarchy, this part belongs to the PFC-controller class within power-management ICs, alongside voltage regulators, DC-DC converters, supervisors, and motor-driver products. Boundary-conduction-mode control reduces conduction losses by allowing the switching device to conduct near the voltage peak and limiting high-frequency switching activity.
The AP1661AP-G1 includes the key verified attributes of BCM PFC operation, an 8-pin PDIP package, through-hole mounting, a 14.5 V supply value, and a 50 uA startup current. Its operating-temperature range is specified as -40°C to 85°C. These values make it relevant to designers evaluating compact, offline power-conversion equipment, especially where a through-hole controller package and established BCM control method are preferred. The package is listed as 8-DIP with a 0.300-inch, 7.62 mm lead pitch in the comparison data.
AP1661AP-G1 is commonly associated with PFC stages in offline power supplies, industrial AC-DC converters, appliance power systems, and other mains-powered equipment. The controller coordinates the switching behavior of an external power stage rather than directly regulating an output voltage alone. External magnetics, switching devices, sensing networks, and safety circuitry remain necessary to complete a practical PFC design. Component selection should therefore include validation of switching frequency, current sensing, protection thresholds, startup behavior, and thermal conditions from the manufacturer datasheet.
For hardware design, use the manufacturer datasheet and application guidance to select the gate-drive network, current-sense resistor, compensation components, input bridge, output capacitor, boost inductor, and EMI filtering. Keep the high-current switching loop compact and keep sensitive feedback and current-sense traces away from power-node transitions. Because the verified data marks the part obsolete, new designs should confirm lifecycle status, stock, and approved sourcing before layout release.
This product page consolidates the verified distributor identity, BCM PFC classification, package information, lifecycle observations, and engineering application guidance for AP1661AP-G1. It distinguishes confirmed values from unavailable specifications and avoids treating similar AP1661 variants as drop-in replacements without explicit evidence.
Alternativas directas para AP1661AP-G1 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con AP1661AP-G1 (mismo factor de forma y huella) — difiere en Mounting Type, Configuration / Function, Operating Temperature, Package, Package Type.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
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Solicitar alternativasAP1661AP-G1 Valores máximos y características eléctricas
| Product Type | Power-factor-correction controller |
| Control Mode | Boundary Conduction Mode (BCM) |
| Tensión de alimentación | 14.5 V |
| Startup Current | 50 uA |
| Rango de temperatura de funcionamiento | -40°C to 85°C |
| Encapsulado | 8-PDIP |
| Case Package | 8-DIP (0.300 inch, 7.62 mm) |
| Tipo de montaje | Through Hole |
| Supplier Packaging | Tube |
| Product Category | Power Management ICs |
| Subcategory | PFC - Power Factor Correction |
| Estado del ciclo de vida | Obsolete |
| Manufacturer | Diodes Incorporated |
| Función | AC input power-factor correction |
| Switching Control | Boundary conduction mode |
| Package Pin Count | 8 pins |
Guía de configuración de pines de AP1661AP-G1 8 pins
Configuración de pines para AP1661AP-G1 (encapsulado 8 pins). Este dispositivo de potencia presenta terminales de puerta, drenador y fuente. Para encapsulados no polarizados, consulte la hoja de datos del fabricante para conocer la orientación exacta del pin 1 y los detalles del footprint. Las aplicaciones habituales incluyen el diseño de fuentes de alimentación, el accionamiento de motores y la conmutación de cargas.
No hay datos detallados de patillaje disponibles para AP1661AP-G1.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
AP1661AP-G1 es adecuado para 6 aplicacións: Offline Boost-PFC Power Supply, Industrial AC-DC Power Conversion, Appliance Power-Supply Front End, Server and Telecom Power-Supply Retrofit, Mains-Powered Charger Front End, Power-Supply Repair and Obsolescence Management.
Offline Boost-PFC Power Supply
The AP1661AP-G1 fits the control role in an offline boost-PFC stage that rectifies AC input and shapes the input current toward a higher power factor. Its verified Boundary Conduction Mode control, 14.5 V supply value, and 50 uA startup current provide a starting point for a through-hole power-conversion design. The controller is not a complete converter: an external boost inductor, switching transistor, rectifier, current-sense network, feedback loop, and output capacitor are required. Because the AP1661AP-G1 is listed as obsolete, engineers should confirm whether an existing board uses it or whether a currently supported controller is preferred for new production.
Recomendado
Industrial AC-DC Power Conversion
In industrial equipment, the AP1661AP-G1 can serve as the PFC control element ahead of a regulated DC bus, helping reduce reactive input current and improve power factor. The verified -40°C to 85°C operating range makes it relevant to industrial designs where ambient conditions are moderate but predictable. Through-hole 8-pin packaging supports repairable and traditionally constructed power boards. Designers still need to validate isolation, creepage, clearance, surge withstand, EMI filtering, and enclosure thermal performance according to the applicable product-safety requirements; those items are not supplied by the verified excerpts.
Recomendado
Appliance Power-Supply Front End
The AP1661AP-G1 is applicable to the PFC front end of an appliance power supply when the board already expects a through-hole BCM controller and the design can tolerate an obsolete lifecycle component. The 8-PDIP package and identified 8-DIP case make it mechanically relevant to older production platforms. A repair or redesign should preserve the original pin footprint and verify startup, current-sense, protection, and loop behavior against the official datasheet. For a new appliance design, use a currently supported controller after a complete engineering review rather than assuming that a family similarity guarantees equivalence.
Recomendado
Server and Telecom Power-Supply Retrofit
The AP1661AP-G1 may be considered for legacy server or telecom power-supply maintenance when the existing PFC board requires the same controller function and package. The verified records identify a BCM PFC controller in an 8-pin PDIP, which is useful for board-level triage and replacement planning. However, server and telecom systems can impose stringent efficiency, reliability, safety, and lifecycle requirements that cannot be established from the supplied snippets. Before substituting any part, compare the original device pinout, switching frequency, current-sense threshold, fault response, startup current, and thermal design, then qualify the complete power module.
Recomendado
Mains-Powered Charger Front End
The AP1661AP-G1 can be evaluated in the input-correction stage of a mains-powered charger where BCM PFC behavior and a through-hole DIP package are acceptable. The 14.5 V supply value and 50 uA startup current are the confirmed electrical values available for initial screening, while the -40°C to 85°C range provides a defined operating envelope. A charger design must additionally verify output power, inductor size, switch voltage and current ratings, EMI performance, safety isolation, and capacitor ripple current. The obsolete lifecycle status makes this primarily a legacy-maintenance or carefully controlled reuse consideration.
Recomendado
Power-Supply Repair and Obsolescence Management
The AP1661AP-G1 is especially relevant to repair teams maintaining older PFC boards because the verified search results identify the exact MPN, Diodes Incorporated origin, BCM function, 8-PDIP package, and obsolete comparison status. A repair inventory can use that information to locate boards and candidate stock, but it must not treat a related AP1661 suffix as interchangeable without proof. Photograph the existing circuit, confirm the pinout from the datasheet, compare electrical limits, and perform controlled load and fault testing before installing any replacement.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para AP1661AP-G1 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Package | 8-PDIP |
| Brand | Diodes Incorporated |
| Product Type | PFC controller |
| Control Mode | Boundary Conduction Mode (BCM) |
| Supply Voltage | 14.5 V |
| Startup Current | 50 uA |
| Operating Temperature | -40°C to 85°C |
| Mounting Type | Through Hole |
| Lifecycle Status | Obsolete |
Diferenciadores clave
- Confirmed BCM PFC positioning (frente a AP1661P-G1)
- Through-hole integration format (frente a AP1661P-E1)
- Lifecycle planning (frente a AP1661P-G1)
Notas de diseño
Use the AP1661AP-G1 only inside a complete boost-PFC power stage with correctly rated external switching and magnetics. The verified 14.5 V supply value and 50 uA startup current are useful screening data, but they do not specify input voltage, switch current, output power, or inductor limits. Confirm those operating values in the manufacturer datasheet and calculate the inductor, switch, diode, capacitor, and current-sense stresses before layout. Estimated power and component stresses must be based on the actual mains input, output voltage, load, efficiency, and ripple targets.
Keep the high-current boost loop as small as practical and separate gate-drive and current-sense traces from the switching node. Place input, output, and control components according to the datasheet reference layout, and provide short, low-impedance connections for the feedback and protection networks. Do not finalize the AP1661AP-G1 layout until the individual 8-pin assignments have been verified from the official datasheet; the supplied evidence confirms the package but does not publish the pin names.
The AP1661AP-G1 is listed as obsolete, and AP1661 family variants should not be assumed to be drop-in replacements merely because they share the Diodes Incorporated name or an 8-DIP package. Verify pinout, supply thresholds, switching timing, current-sense limits, protection behavior, startup current, thermal limits, and lifecycle status for every candidate. Treat distributor listings as sourcing leads rather than guaranteed inventory, especially when the search excerpts contain RFQ or quote language rather than a confirmed quantity.
Información de cumplimiento
The supplied verified snippets identify the manufacturer, package, PFC function, BCM mode, supply value, startup current, and operating range, but they do not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. These fields remain unknown rather than being inferred.
