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The L6564H is a current-mode PFC controller operating in transition mode (TM) which embeds the same features existing in the L6564 with the addition of a high voltage startup source. These functions make the IC especially suitable for applications that must be compliant with energy saving regulations and where the PFC preregulator works as the master stage.
The highly linear multiplier, along with a special correction circuit that reduces crossover distortion of the mains current, allows wide-range-mains operation with an extremely low THD even over a large load range.
The output voltage is controlled by means of a voltage-mode error amplifier and an accurate (1% @TJ= 25 °C) internal voltage reference. The loop stability is optimized by the voltage feedforward function (1/V2 correction), which, in this IC, uses a proprietary technique that also considerably improves line transient response in the case of both mains drops and surges (“bi-directional”).
In addition to overvoltage protection able to control the output voltage during transient conditions, the IC also provides protection against feedback loop failures or erroneous settings. Other onboard protection functions allow brownout conditions and boost inductor saturation to be safely handled.
The totem pole output stage, capable of a 600 mA source and 800 mA sink current, is suitable for a high power MOSFET or IGBT drive. This, combined with the other features and the possibility to operate with ST's proprietary fixed-off-time control, makes the device an excellent solution for SMPS up to 400 W that requires compliance with EN61000-3-2 and JEITA-MITI standards.主要特性
- Onboard 700 V startup source
- Fast “bi-directional” input voltage feedforward (1/V2correction)
- Accurate adjustable output overvoltage protection
- Protection against feedback loop disconnection (latched shutdown)
- Inductor saturation protection
- AC brownout detection
- Low (≤ 100 μA) startup current
- 6 mA max. operating bias current
- 1% (@ TJ= 25 °C) internal reference voltage
- -600/+800 mA totem pole gate driver with active pull-down during UVLO
- SO-14 package
样片和购买
| 产品型号 | 封装 | 包装类型 | 供货状态 | 预算价格(US$) | 数量 | ECCN (US) | Country of Origin | 从分销商订购 | 从ST订购 |
|---|---|---|---|---|---|---|---|---|---|
| L6564HTR | SO-14 | Tape And Reel |
Active
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0.504 | 10000 | EAR99 | CHINA | 查看供货情况 | Get sample |
| L6564H | SO-14 | Tube |
Active
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0.504 | 10000 | EAR99 | MOROCCO | 查看供货情况 | 立即购买 |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
精选 视频
ST simplfies access to digital power advantages with configurable high efficiency interleaved PFC controller
评估工具
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Picture 产品型号 制造商 描述 EVL6564H-25W-BB -- 25 W wide-range high power factor buck-boost converter demonstration board using the L6564H 产品型号25 W wide-range high power factor buck-boost converter demonstration board using the L6564H
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| 产品型号 | 供货状态 | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| L6564H |
Active
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SO-14 | 工业 | Ecopack2 | |
| L6564HTR |
Active
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SO-14 | 工业 | Ecopack2 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
