AP1661MTR-E1 - 0.8A PFC Controller | Diodes Incorporated
MPN： AP1661MTR-E1 ✓ 啟用中AP1661MTR-E1 概覽
A power-factor-correction controller is a power-management semiconductor that controls the charging of an energy-storage inductor in an AC-input boost stage. By commanding the switching device according to a suitable conduction method, the controller helps the upstream rectifier draw current near the input-voltage waveform instead of narrow, highly reactive pulses. The result is improved input power factor and lower line-current distortion when paired with the correct power stage and compensation network.
The AP1661MTR-E1 uses boundary-conduction mode, identified in the distributor data as BCM. This mode is associated with a boost PFC stage and can simplify control compared with continuous-conduction implementations when the surrounding inductor, switching element, sensing network, and compensation are designed for the intended line input. The verified listing also specifies an SOIC-8 package and a RoHS-compliant part.
The listed 0.8 A output and 14.5 V input values should be treated as the available verified parameters, not as a complete electrical rating set. The manufacturer datasheet is required for pin names, thresholds, gate-drive limits, compensation details, start-up behavior, and absolute maximum ratings. AP1661MTR-E1 is marketed as an active component in the retrieved data, while procurement availability and pricing vary by distributor.
Typical applications include front-end PFC for industrial power supplies, server and telecom power systems, and AC-DC converters that require reduced input-current distortion. In each case, the controller is only one part of the solution; the boost inductor, switching transistor, rectifier bridge, capacitors, current-sense network, and feedback loop determine the achieved power factor and efficiency.
A critical design consideration is validating the complete PFC loop against the minimum and maximum input line, output voltage, load, and switching frequency. Do not infer pin functions, protection behavior, or maximum output power from the distributor summaries alone. Use the manufacturer datasheet and validate startup, overvoltage, overcurrent, zero-cross behavior, and thermal conditions in the target enclosure.
直接替換替代品，適用於 AP1661MTR-E1 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： AP1661MTR-E1 （相同外形與佔位） — 差異在於 Mounting Type, Package Type, Configuration / Function, Operating Temperature, Output Current.
AP1661MTR-G1
✅ 直接替換聯絡詢價
查看資料表 →AP1661MTR-E1 最大額定值與電氣特性
| Controller Type | Active power factor correction controller |
| Control Mode | Boundary Conduction Mode (BCM) |
| 拓撲 | Boost pre-converter |
| Input Voltage | 14.5 V |
| Output Current | 0.8000 A |
| 工作溫度範圍 | -40 °C to +85 °C |
| Package Type | SOIC-8 |
| Package Width | 3.90 mm |
| 生命週期狀態 | Active |
| RoHS 狀態 | RoHS compliant |
| Lead-Free Status | Lead-free part |
| 安裝類型 | Surface mount |
| Application Category | AC-input power-supply front end |
AP1661MTR-E1 3.90 mm 腳位配置指南
AP1661MTR-E1（3.90 mm 封裝）的腳位配置。 此功率元件具有閘極、汲極與源極端子。對於非極性封裝，請參閱製造商資料表以取得確切的第 1 腳方向與佈局詳細資訊。常見應用包括電源設計、馬達驅動與負載切換。
無詳細腳位定義資料： AP1661MTR-E1.
請參閱 資料表 以查看完整腳位配置。
典型應用
AP1661MTR-E1 適用於 6 應用s: Industrial AC-DC Power Supply Front End, Server and Telecom Power Systems, High-Power AC Charger Pre-Regulator, LED Power Supply with Active PFC, Power-Supply Retrofit and Replacement, Renewable-Energy and Power-Quality Interface.
Industrial AC-DC Power Supply Front End
The AP1661MTR-E1 fits an AC-input boost PFC front end where the power supply needs active input-current shaping. Its verified 14.5 V input value and 0.8 A catalog output provide an initial screening point, while BCM operation is specifically associated with the boost PFC stage described by the manufacturer. The controller drives an external transistor and works with the system inductor, sensing network, and feedback loop. Engineers should verify the full line range, output voltage, inductor ripple, compensation, and protection thresholds because those values are not present in the supplied search data.
推薦
Server and Telecom Power Systems
AP1661MTR-E1 can be evaluated for server or telecom power-system front ends that include a boost PFC stage to reduce input-current distortion from the AC rectifier. The SOIC-8 package supports compact controller placement, and the verified BCM mode matches the intended class of PFC control. The IC does not determine the final power rating by itself; the boost switch, transformer or inductor, bus capacitors, current transformer or shunt, and safety circuitry define achievable power and efficiency. Validate ripple, startup, fault response, and conducted-emissions requirements across the specified operating temperature range.
推薦
High-Power AC Charger Pre-Regulator
The AP1661MTR-E1 may be considered for an AC charger pre-regulator when a boost PFC stage is required ahead of a downstream conversion stage. Its boundary-conduction-mode control can help the front end draw a more favorable current waveform than an uncontrolled rectifier capacitor source. The verified 0.8 A catalog output should not be equated automatically with charger output current; actual capability depends on the boost topology, switch ratings, inductor, switching frequency, and thermal design. Confirm the charger voltage range and all controller electrical limits in the manufacturer datasheet.
推薦
LED Power Supply with Active PFC
The AP1661MTR-E1 can serve as the PFC controller in an AC-to-LED supply architecture where input-current harmonics and power factor are important. The boost PFC stage can precede an isolated downstream converter or provide a stabilized high-voltage bus. The controller’s SOIC-8 package is suitable for conventional surface-mount assembly, but the LED driver still needs its own switching and isolation design. Verify line regulation, no-load behavior, output overshoot, protection during LED open-circuit conditions, and the listed -40 °C to +85 °C operating range before production release.
推薦
Power-Supply Retrofit and Replacement
AP1661MTR-E1 is relevant when repairing or redesigning an existing AC-input PFC controller board with an 8-SO footprint. Its verified BCM description, 14.5 V input value, and 0.8 A catalog output provide useful identification clues. However, engineers must match the complete pinout and timing behavior before energizing a retrofit. Pay particular attention to gate-drive polarity, current-sense topology, zero-cross or startup implementation, feedback polarity, protection thresholds, and whether the original design uses boundary-conduction or another mode. Never substitute based on package appearance alone.
推薦
Renewable-Energy and Power-Quality Interface
The AP1661MTR-E1 may be evaluated in a power-quality interface where an AC source feeds a boost-conversion stage and improved input-current shape is required. The controller is specifically intended for power-factor correction rather than maximum converter integration, so it remains dependent on external power semiconductors and magnetics. A system designer should compare BCM behavior against the required line frequency, output voltage, control bandwidth, and efficiency target. EMC filtering, surge protection, grounding, and transformer or inductor saturation must also be designed and tested around the controller rather than treated as automatic functions of the IC.
推薦
推薦產品摘要
工程參考資料，適用於 AP1661MTR-E1 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | AP1661MTR-G1 |
|---|---|---|
| Package | SOIC-8 | SOIC-8 |
| Brand | Diodes Incorporated | Diodes Incorporated |
| Controller Type | Active PFC controller | Power factor correction controller |
| Control Mode | Boundary Conduction Mode | Boundary Conduction Mode |
| Input Voltage | 14.5 V | 14.5 V |
| Lifecycle Status | Active | Obsolete |
主要差異化特點
- Verified active PFC positioning (對比AP1661MTR-G1)
- Published catalog electrical values (對比AP1661MTR-G1)
- Lifecycle suitability (對比AP1661MTR-G1)
- Package continuity (對比AP1661MTR-G1)
設計說明
Place the AP1661MTR-E1 close to the boost-switch gate driver or gate-drive return path and keep the current-sense trace short and away from high-current switching nodes. The supplied data does not provide the complete pinout, so first confirm every pin from the manufacturer datasheet. Use a stable ground reference for the controller and place its sensing and feedback components according to the application circuit rather than guessing from generic PFC layouts.
Do not design around the catalog value of 0.8 A as a guaranteed boost output-current capability. Estimated system power depends on the verified controller limits, switching-device rating, inductor ripple current, bus voltage, switching frequency, efficiency, and thermal resistance. Compare the complete datasheet ratings against the worst-case line, output voltage, ambient temperature, and startup condition before selecting the switch, inductor, capacitors, and current-sense elements.
A package match is not proof of a functional replacement. Boundary-conduction-mode timing, current-sense polarity, feedback polarity, startup behavior, protection thresholds, and gate-drive compatibility must all be checked. The verified cross-reference data identifies AP1661MTR-G1 as a related same-brand part but also reports an obsolete status, so it should not be treated as an automatically safe production substitute without a complete engineering review.
Validate the controller temperature in the final enclosure. The supplied data specifies an operating range of -40 °C to +85 °C, but it does not provide thermal resistance or power dissipation values. Estimated: controller dissipation depends on gate-drive charge, switching frequency, quiescent current, and internal losses; obtain those values from the manufacturer datasheet and check the hottest corner of the board with the intended switching stage and magnetics.
合規資訊
The retrieved parts data identifies AP1661MTR-E1 as RoHS compliant and lead-free. No verified REACH, halogen-free, conflict-minerals, or automotive qualification statement was provided.
