L6562D Transition-Mode PFC Controller | STMicroelectronics
MPN： L6562D ✓ 啟用中L6562D 概覽
A power-factor-correction controller is a specialized power-management IC that shapes the input current drawn from an AC rectifier so that it is closer to sinusoidal and has a near-unity power factor. In a boost PFC stage, the controller regulates the DC output bus while monitoring input current and voltage. This reduces reactive current, lowers input-current distortion, and helps the power stage comply with power-quality requirements.
The L6562D features a proprietary multiplier design for minimum AC-input-current total harmonic distortion, precise adjustable output-overvoltage protection, ultra-low start-up current of 70 µA, and low quiescent current of approximately 4 mA. The verified distributor data identifies the device as a discontinuous/transition-mode PFC controller rated for operation from a 10.3 V to 22 V supply, with 10.3 V lockout and approximately 3.5 mA supply current in another distributor description. The exact maximum output-voltage and compensation details should be confirmed against the manufacturer datasheet before production release.
Typical applications include server and telecom power supplies, industrial AC-DC converters, LED-driver front ends, electronic ballasts, and other boost PFC preregulators. The controller’s current-mode architecture supports cycle-by-cycle current control, while transition-mode operation allows the switching frequency to vary with the rectified input voltage. Designers must still validate loop compensation, inductor sizing, MOSFET selection, startup behavior, fault thresholds, and safety isolation in the final reference design.
The main design consideration is that controller substitution is not automatically safe even when the package is similar. A candidate must match the L6562D pin functions, control architecture, timing behavior, voltage thresholds, compensation method, and protection strategy. Use the manufacturer datasheet and the application circuit as the authority rather than relying on distributor category descriptions alone.
This page consolidates verified distributor and manufacturer links, identifies the supported L6561 compatibility statement, and separates known engineering facts from missing specifications. Use it for initial component selection and sourcing, then complete a manufacturer-level design review for compliance and production use.
直接替換替代品，適用於 L6562D — 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： L6562D （相同外形與佔位） — 差異在於 Output Overvoltage Protection, Package, Product Type.
L6562DTR
✅ 直接替換📋 參考替代品（不在目錄中）
L6561D
✅ 直接替換📋 參考替代品（不在目錄中）
NCP1653
✅ 直接替換📋 參考替代品（不在目錄中）
FAN7527B
✅ 直接替換📋 參考替代品（不在目錄中）
UCC28051
✅ 直接替換📋 參考替代品（不在目錄中）
L6562D 最大額定值與電氣特性
| Product Type | Current-mode power-factor-correction controller |
| Control Architecture | Transition Mode (TM) |
| Input Supply Voltage Range | 10.3 V to 22 V |
| Typical Operating Supply | 12 V |
| Lockout Voltage | 10.3 V |
| 切換頻率 | 1 MHz |
| 靜態電流 | Approximately 4 mA |
| 供應電流 | 3.5 mA |
| 啟動電流 | 70 uA |
| AC Input Current THD | Proprietary multiplier design for minimum THD |
| Output Overvoltage Protection | Very precise, adjustable |
| PFC Function | Boost PFC preregulator control |
| Operating Mode | Discontinuous or Transition Mode |
| 封裝 | SOIC-8 |
| 安裝類型 | Surface Mount |
| Manufacturer | STMicroelectronics |
| RoHS 狀態 | Not specified in provided verified data |
| REACH Status | Not specified in provided verified data |
L6562D soic-8 腳位配置指南
L6562D（soic-8 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： L6562D.
請參閱 資料表 以查看完整腳位配置。
典型應用
L6562D 適用於 6 應用s: Industrial AC-DC Power Supply, Telecom and Server Power Front End, LED Driver PFC Preregulator, Electronic Ballast Power Conversion, Universal-Input PFC Module, High-Power Audio or Industrial Ballast.
Industrial AC-DC Power Supply
The L6562D fits an industrial boost PFC front end because its current-mode Transition Mode architecture is intended to reduce AC input-current distortion while regulating the DC bus. Its verified 10.3 V to 22 V controller-supply range supports a 12 V auxiliary supply commonly generated in offline converters, while the 70 µA start-up current helps reduce standby loading. Designers must still calculate inductor current, select the MOSFET and rectifier, compensate the loop, and validate EMI with the final transformer and mains network.
推薦
Telecom and Server Power Front End
The L6562D is suitable for a boost PFC stage in telecom or server power systems where input-current quality and controlled bus behavior are important. Transition Mode control allows the switching behavior to follow the rectified line, and the manufacturer highlights minimum AC-input-current THD as a design goal. The controller itself does not provide mains isolation or complete PFC regulation; the application still needs a suitably rated boost inductor, switching MOSFET, rectifier, sensing network, protection circuits, and an EMI-filter strategy.
推薦
LED Driver PFC Preregulator
The L6562D can provide the PFC preregulator function in an offline LED driver when the system requires corrected input current ahead of a downstream conversion stage. Its 1 MHz device classification and current-mode architecture are relevant to compact high-frequency power stages, but transition-mode operation and external compensation require careful validation. Confirm the controller supply rail, current-sense limits, startup behavior, and output-overvoltage threshold against the LED driver’s voltage range before production use.
推薦
Electronic Ballast Power Conversion
The L6562D is relevant to electronic ballast power-conversion stages because STMicroelectronics documents a two-stage electronic-ballast demonstration-board context for the L6562 family. A PFC stage can shape the rectified lamp power supply and reduce input-current distortion, while the downstream ballast stage controls the HID lamp. The L6562D requires separate protection and sequencing for the lamp stage, and the final design must verify startup, open-circuit behavior, insulation, and EMI compliance.
推薦
Universal-Input PFC Module
The L6562D can be evaluated for a universal-input PFC module when the design requires a dedicated current-mode controller rather than a generic PWM controller. Its verified supply range of 10.3 V to 22 V is suitable for a regulated auxiliary rail, and the transition-mode architecture is intended to support low input-current distortion. The module designer must establish the maximum bus voltage, current-sense threshold, magnetics rating, surge immunity, and thermal margin across the full input range.
推薦
High-Power Audio or Industrial Ballast
The L6562D may be used in the preregulator section of specialized high-power conversion equipment where corrected line current improves system-level power quality. The manufacturer’s identification of an HID metal-halide lamp demonstration board provides a relevant application context, but it is not a universal reference design for every ballast. Use the manufacturer datasheet and application example to assess the control loop, protection thresholds, and thermal environment, then adapt magnetics and switching devices to the actual output power.
推薦
推薦產品摘要
工程參考資料，適用於 L6562D — 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 | L6562DTR | L6561D | NCP1653 | FAN7527B | UCC28051 |
|---|---|---|---|---|---|---|
| Product Type | Transition-mode PFC controller | L6562 family ordering variant | Predecessor transition-mode PFC controller | Equivalent-type PFC controller | Equivalent-type PFC controller | Equivalent-type PFC controller |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | onsemi | onsemi | Texas Instruments |
主要差異化特點
- STMicroelectronics L6562 successor status (對比L6561D)
- Transition-mode current-mode PFC control (對比NCP1653)
- Ultra-low start-up current (對比FAN7527B)
- Low quiescent current (對比UCC28051)
設計說明
Use the verified 10.3 V to 22 V L6562D supply range when designing the controller VCC rail, and confirm the auxiliary-supply startup path against the 10.3 V lockout value. The 70 uA start-up current is useful for reducing standby loading, but the external VCC source, capacitor, diode, and undervoltage behavior must still be checked against the manufacturer datasheet.
Do not treat a distributor equivalence statement as proof of drop-in compatibility. For NCP1653, FAN7527B, and UCC28051, compare pin functions, package dimensions, current-sense thresholds, compensation method, timing, and protection settings before changing the PCB. The supplied search results identify these parts as equivalent-type candidates but do not provide enough verified electrical detail to approve production substitution.
Keep the controller ground, current-sense return, and compensation components arranged according to the manufacturer reference layout. Transition-mode PFC power stages can conduct high pulse currents, so keep switching-loop copper compact and route sensitive feedback and current-sense traces away from power-node edges. Confirm creepage, clearance, isolation, and thermal copper using the applicable safety requirements for the final mains-powered product.
合規資訊
The provided verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Compliance must be confirmed from the manufacturer product documentation or the distributor’s current compliance records before release.
