Datasheet > NCP1910

NCP1910

更新时间： 2024-11-07 12:00:19

品牌	Logo	应用领域
安森美 - ONSEMI		控制器
页数	文件大小	规格书
37页	396K
描述
High Performance Combo Controller for ATX Power Supplies

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中文翻译

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NCP1910 数据手册

NCP1910

High Performance Combo

Controller for ATX Power

Supplies

Housed in a SO−24WB package, the NCP1910 combines a

state−of−the−art circuitry aimed to powering next generation of ATX

or flat TVs converters. With a 65 kHz Continuous Conduction Mode

Power Factor Controller and a LLC controller hosting a high−voltage

driver, the NCP1910 is ready to power 85+ types of offline power

supplies. To satisfy stringent efficiency considerations, the PFC circuit

implements an adjustable frequency fold back to reduce switching

losses as the load is going light. To cope with all the signal sequencing

required by the ATX and flat TVs specifications, the controller

includes several dedicated pins enabling handshake between the

secondary and the primary sides. These signals include a power−good

line but also a control pin which turns the controller on and off via an

opto coupler. Safety−wise, a second OVP input offers the necessary

redundancy in case the main feedback network would drift away.

Finally, a fast fault input immediately reacts in presence of an over

current condition by triggering an auto−recovery soft−start sequence.

http://onsemi.com

SO−24WB Less Pin 21

DW SUFFIX

CASE 752AB

MARKING DIAGRAM

NCP1910XXX

AWLYYWWG

XXXXX = Specific Device Code

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

Features

• Fixed−Frequency 65 kHz CCM Power Factor Controller

• Average Current−Mode Control for Low Line Distortion

• Dynamic Response Enhancer Reduces Bulk Undershoot

• Independent Over Voltage Protection Sensing Pin with Latch−off

Capability

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 36 of this data sheet.

• Adjustable Frequency Fold Back Improves Light Load Efficiency

• Adjustable Line Brown−out Protection with 50 ms

Delay to Help Meeting Hold−up Time Specifications

• Programmable Over current Threshold Leads to an

Optimized Sensing Resistor

• on/off Control Pin for Secondary−Based Remote

Control

• On−Board 5 V Reference Voltage for Precise

Thresholds/Hysteresis Adjustments

• Power Good Output Management Signal

•

1 A peak Current Drive Capability

• LLC Controller Operates from 25 kHz to 500 kHz

• On Board 600 V High−Voltage Drivers

• 1 A/0.5 A Sink/Source Capability

• A Version with Dual Ground Pinout (No Skip),

B Version with Single Ground and Skip Operation for

the LLC Controller

• 20 V Operation

• These are Pb−Free Devices

• Minimum Frequency Precision Down to 3% Over

Temperature Range

• Internally Fixed Dead−Time Value of 300 ns

Typical Applications

• Adjustable Soft−Start Sequence

• Multi Output ATX Power Supplies (A version)

• Flat TVs Power Supplies (B version)

• Fast Fault Input with Soft−Start Trigger for Immediate

Auto−Recovery Protection

Publication Order Number:

December, 2012 − Rev. 1

NCP1910/D

12 3 4 5 6 7...37

中文翻译

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与NCP1910相关器件

型号	品牌	获取价格	描述	数据表
NCP1910A100DWR2G	ONSEMI	获取价格	高性能组合控制器，用于 ATX 电源
NCP1910A65DWR2G	ONSEMI	获取价格	High Performance Combo Controller for ATX Power
NCP1910B100DWR2G	ONSEMI	获取价格	高性能组合控制器，用于 ATX 电源
NCP1910B65DWR2G	ONSEMI	获取价格	High Performance Combo Controller for ATX Power
NCP1927	ONSEMI	获取价格	Combination Power Factor Correction Controller and Flyback Controller for Flat
NCP1927DR2G	ONSEMI	获取价格	PFC and Flyback Controller for Flat Panel TVs
NCP1937	ONSEMI	获取价格	Combination Power Factor Correction and Quasi- Resonant Flyback Controllers for Adapters
NCP1937_15	ONSEMI	获取价格	Combination Power Factor Correction and Quasi-Resonant Flyback Controllers for Adapters
NCP1937A1DR2G	ONSEMI	获取价格	Combination Power Factor Correction and Quasi- Resonant Flyback Controllers for Adapters
NCP1937A2DR2G	ONSEMI	获取价格	Combination Power Factor Correction and Quasi-Resonant Flyback Controllers for Adapters

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