L6566BH

批量生产

Multi-mode controller for SMPS

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  • The L6566BH is an extremely versatile current-mode primary controller IC, specifically designed for high-performance offline flyback converters running off rectified 3-phase input lines. It is also suited to single-stage, single-switch, input-current-shaping converters (single-stage PFC) for applications that must comply with EN61000-3-2 or JEITA-MITI regulations.

    Both fixed-frequency (FF) and quasi-resonant (QR) operation are supported. The user can choose either of the two depending on application needs. The device features an externally programmable oscillator: it defines the converter switching frequency in FF mode and the maximum allowed switching frequency in QR mode.
    When FF operation is selected, the ICs work as a standard current-mode controller with a maximum duty cycle limited to 70% min. The oscillator frequency can be modulated to mitigate EMI emissions.
    QR operation, when selected, occurs at heavy load and is achieved through a transformer demagnetization sensing input that triggers MOSFET turn-on. Under some conditions, ZVS (zero-voltage switching) can be achieved. The converter’s power capability rise with the mains voltage is compensated by line voltage feedforward. At medium and light load, as the QR operating frequency equals the oscillator frequency, a function (valley skipping) is activated to prevent further frequency rise and keep the operation as close to ZVS as possible.
    With either FF or QR operation, at very light load the ICs enter a controlled burst-mode operation that, along with the built-in, non-dissipative, high-voltage startup circuit and the low quiescent current, helps keep the consumption from the mains low and meet energy saving recommendations.
    An innovative adaptive UVLO helps minimize the issues related to the fluctuations of the self-supply voltage due to transformer parasites.
    The protection functions included in this device are: not-latched input undervoltage (brownout), output OVP (auto-restart or latch-mode selectable), a first-level OCP with delayed shutdown to protect the system during overload or short-circuit conditions (auto-restart or latch-mode selectable), and a second-level OCP that is invoked when the transformer saturates or there is a short-circuit of the secondary diode. A latched disable input allows easy implementation of OTP with an external NTC, while an internal shutdown prevents IC overheating.
    Programmable soft-start, leading-edge blanking on the current sense input for greater noise immunity, slope compensation (in FF mode only), and a shutdown function for externally controlled burst-mode operation or remote ON/OFF control complete the features of this device.

    主要特性

    • Selectable multimode operation: fixed frequency or quasi-resonant
    • On-board 840 V high voltage startup
    • Advanced light load management
    • Low quiescent current (< 3 mA)
    • Adaptive UVLO
    • Line feedforward for constant power capability vs. mains voltage
    • Pulse-by-pulse OCP, shutdown on overload (latched or auto-restart)
    • Transformer saturation detection
    • Programmable frequency modulation for EMI reduction
    • Latched or auto-restart OVP
    • Brownout protection
    • -600/+800 mA totem pole gate driver with active pull-down during UVLO
    • SO16N package

电路原理图

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样片和购买

产品型号
封装
包装类型
供货状态
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
从ST订购
从分销商订购
L6566BH SO-16 Tube
批量生产
EAR99 PHILIPPINES 0.75 / 1k 立即购买 查看供货情况

...的经销商可用性L6566BH

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 980 1 马上订购
RS COMPONENTS EUROPE 400 1 马上订购
FUTURE WORLDWIDE 950 1 马上订购
ARROW EUROPE 2002 0 马上订购
MOUSER WORLDWIDE 925 1 马上订购
RUTRONIK EUROPE 500 50 马上订购

代理商库存报告日期: 2020-06-04

代理商名称

DIGIKEY

库存

980

Min.Order

1

地区

WORLDWIDE 马上订购

RS COMPONENTS

库存

400

Min.Order

1

地区

EUROPE 马上订购

FUTURE

库存

950

Min.Order

1

地区

WORLDWIDE 马上订购

ARROW

库存

2002

Min.Order

0

地区

EUROPE 马上订购

MOUSER

库存

925

Min.Order

1

地区

WORLDWIDE 马上订购

RUTRONIK

库存

500

Min.Order

50

地区

EUROPE 马上订购

代理商库存报告日期: 2020-06-04

L6566BHTR SO-16 Tape And Reel
批量生产
EAR99 PHILIPPINES 0.75 / 1k 查看供货情况

...的经销商可用性L6566BHTR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 538 1 马上订购
ARROW EUROPE 12500 0 马上订购
Newark Element14 AMERICA 625 0 马上订购

代理商库存报告日期: 2020-06-04

代理商名称

DIGIKEY

库存

538

Min.Order

1

地区

WORLDWIDE 马上订购

ARROW

库存

12500

Min.Order

0

地区

EUROPE 马上订购

Newark Element14

库存

625

Min.Order

0

地区

AMERICA 马上订购

代理商库存报告日期: 2020-06-04

L6566BH

封装

SO-16

包装类型

Tube

Budgetary Price (US$)*/Qty

0.75 / 1k

...的经销商可用性L6566BH

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 980 1 马上订购
RS COMPONENTS EUROPE 400 1 马上订购
FUTURE WORLDWIDE 950 1 马上订购
ARROW EUROPE 2002 0 马上订购
MOUSER WORLDWIDE 925 1 马上订购
RUTRONIK EUROPE 500 50 马上订购

代理商库存报告日期: 2020-06-04

代理商名称

DIGIKEY

库存

980

Min.Order

1

地区

WORLDWIDE 马上订购

RS COMPONENTS

库存

400

Min.Order

1

地区

EUROPE 马上订购

FUTURE

库存

950

Min.Order

1

地区

WORLDWIDE 马上订购

ARROW

库存

2002

Min.Order

0

地区

EUROPE 马上订购

MOUSER

库存

925

Min.Order

1

地区

WORLDWIDE 马上订购

RUTRONIK

库存

500

Min.Order

50

地区

EUROPE 马上订购

代理商库存报告日期: 2020-06-04

供货状态

批量生产

Budgetary Price (US$)* / Qty

0.75 / 1k

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

L6566BHTR

封装

SO-16

包装类型

Tape And Reel

Budgetary Price (US$)*/Qty

0.75 / 1k

...的经销商可用性L6566BHTR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 538 1 马上订购
ARROW EUROPE 12500 0 马上订购
Newark Element14 AMERICA 625 0 马上订购

代理商库存报告日期: 2020-06-04

代理商名称

DIGIKEY

库存

538

Min.Order

1

地区

WORLDWIDE 马上订购

ARROW

库存

12500

Min.Order

0

地区

EUROPE 马上订购

Newark Element14

库存

625

Min.Order

0

地区

AMERICA 马上订购

代理商库存报告日期: 2020-06-04

供货状态

批量生产

Budgetary Price (US$)* / Qty

0.75 / 1k

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

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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**
L6566BH
批量生产
SO-16 Industrial Ecopack2
L6566BHTR
批量生产
SO-16 Industrial Ecopack2

L6566BH

Package:

SO-16

Material Declaration**:

Marketing Status

批量生产

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6566BHTR

Package:

SO-16

Material Declaration**:

Marketing Status

批量生产

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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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