产品概述
描述
The L4983 is a peak current-mode PFC controller for boost converter with a proprietary multiplier “emulator” which in addition to the innovative THD optimizers guarantee very low Total Harmonic Distortion (THD) performance in all operating conditions. The device comes in a pin SO package and offers a high performance/low-component count solution for CCM-operated boost PFC pre-regulators in EN61000-3-2 and JEIDA-MITI compliant applications, in a power range that spans from few hundred W to some kW.
The device, thanks to a proprietary off-time modulator, operates in quasi-fixed frequency in all operating conditions. Two options are available, 65 kHz for A and 130 kHz for B.
The device features low consumption and disable functions allowing usage in applications supposed to comply even with the latest energy saving requirements issued by Energy Star, the Department of Energy (DoE) in the United States, the European Code of Conduct, the European Union’s Ecodesign Directive, and other guidelines.
In addition to an overvoltage protection able to keep the output voltage under control during transient conditions, the IC is provided also with a protection against feedback loop failures or erroneous settings and boost inductor saturation. Soft-start limits the peak current.
The totem-pole output stage, capable of 0.7 A source and 1.5 A sink current, is suitable for big MOSFET or IGBT drives.
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所有功能
- Peak current mode CCM-operated
- Proprietary multiplier “emulator” with minimum THD of line current in all operating conditions (CCM and DCM)
- Extremely few external components
- Protections: feedback loop failure, OVP, OCP, inductor saturation
- Inductor current sense
- Disable and low consumption function
- In-rush current monitoring
- Soft-start for smooth startup
- 1.2% (@ Tj = 25 °C) internal reference voltage
- 65 kHz (A version) and 130 kHz (B version) switching frequency
- SO8 package
EDA符号、封装和3D模型
意法半导体 - L4983
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符号
封装
3D模型
质量与可靠性
| 料号 | Marketing Status | 包 | 等级规格 | 符合RoHS级别 | Longevity Commitment | Longevity Starting Date | 材料声明** |
|---|---|---|---|---|---|---|---|
| L4983A | 批量生产 产品已量产 | SO-8 | 工业 | Ecopack3 | - | - | |
| L4983ATR | 批量生产 产品已量产 | SO-8 | 工业 | Ecopack3 | - | - | |
| L4983B | 批量生产 产品已量产 | SO-8 | 工业 | Ecopack3 | - | - | |
| L4983BTR | 批量生产 产品已量产 | SO-8 | 工业 | Ecopack3 | - | - | |
L4983A
Package:
SO-8Material Declaration**:
L4983ATR
Package:
SO-8Material Declaration**:
L4983B
Package:
SO-8Material Declaration**:
L4983BTR
Package:
SO-8Material Declaration**:
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
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样片和购买
| 料号 | 供货状态 | Budgetary Price (US$)*/Qty | 从ST订购 | Order from distributors | 包 | 包装类型 | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L4983A | | | distributors 无法联系到经销商，请联系我们的销售办事处 | ||||||||||
| L4983ATR | | | distributors 无法联系到经销商，请联系我们的销售办事处 | ||||||||||
| L4983B | | | distributors 无法联系到经销商，请联系我们的销售办事处 | ||||||||||
| L4983BTR | | | distributors 无法联系到经销商，请联系我们的销售办事处 |
L4983A 批量生产
L4983ATR 批量生产
L4983B 批量生产
L4983BTR 批量生产