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NCP1565: PWM Controller, Highly Integrated Dual-Mode Active Clamp

Overview
Specifications
Applications
Datasheet: Highly Integrated Dual-Mode Active Clamp PWM Controller
Rev. 4 (988kB)
Product Overview
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The NCP1565 is a highly integrated dual-mode active-clamp PWM controller targeting next-generation high-density, high-performance and small to medium power level isolated dc-dc converters for use in telecom and datacom industries. It can be configured in either voltage mode control with input voltage feed-forward or peak current mode control. Peak current mode control may be implemented with input voltage feed forward as well. Adjustable adaptive overlap time optimizes system efficiency based on input voltage and load conditions. This controller integrates all the necessary control and protection functions to implement an isolated active clamp forward or asymmetric half-bridge converter. It integrates a high-voltage startup bias regulator. The NCP1565 has a line undervoltage detector, cycle-by-cycle current limiting, line voltage dependent maximum duty ratio limit, and programmable overtemperature protection using an external thermistor. It also includes a dual-function FLTSD pin used for communicating the presence of a fault but also for shutting down the controller. For complete datasheet please contact your local ON Semiconductor Sales office or Tim.Kaske@onsemi.com
特長   利点
     
  • Both Voltage Mode Control and Current Mode Control
 
  • Flexible topology solution
  • Line feedforward
 
  • Stable constant crossover across input voltage range
  • Adaptive Overlap time Control
 
  • Extended ZVS across input & output operating conditions
  • Integrated 200V HV Startup
 
  • Lossless startup and reduced Vcc capacitor via dynamic startup
  • Programmable Line Undervoltage Lockout (UVLO) with Adjustable Hysteresis
 
  • Safely limits operating input voltage range
  • Cycle by Cycle Peak Current Limiting
 
  • Increased converter robustness
  • Overcurrent Protection Based on Average Current
 
  • Precise output power limit
  • Programmable Duty Ratio Clamp
 
  • Efficiently prevents transformer saturation
  • Programmable Soft-Start
 
  • Lowers components stress at startup
  • Programmable Shutdown and Restart Delays
 
  • Robustness and flexibility of design
  • Programmable External Overtemperature Protection Using Thermistor
 
  • Robustness and flexibility of design
  • FLT/SD pin Used for Fault reporting and Shutdown Input
 
  • Good system integration
  • Programmable Oscillator with 1.5 MHz Maximum Frequency
 
  • Ready for high frequency designs
  • Main Switch Drive Capability of -2 A/3 A
 
  • Drive larger MOSFETs more efficiently
  • Active Clamp Switch Drive Capability of -2 A/1 A
 
  • More efficient drive capability
  • Short Circuit Protection
   
  • 5 V 2% Voltage Reference
   
  • VCC Range: from 6.5 V to 20 V
   
アプリケーション   最終製品
  • High Efficiency Isolated dc−dc Converters
  • Server Power Supplies
  • 24 V and 48 V Telecom systems
  • 42 V Automotive Applications
 
  • Telecom systems
  • Servers
評価/開発ツール情報
製品 状態 Compliance 簡単な説明 アクション
NCP1565TELECGEVB Active
High Efficiency Isolated dc−dc Converters, BRICK TELECOM Evaluation Board
Avnet (2016-12-06) : 2
Mouser (2016-12-06) : 2
供給状況 & サンプル
製品
状態
Compliance
内容
外形
MSL*
梱包形態
予算 価格/Unit
タイプ
Case Outline
タイプ
数量
NCP1565MNTXG Active
Pb-free
Halide free
PWM Controller, Highly Integrated Dual-Mode Active Clamp QFN-24 485CW 1 Tape and Reel 4000 $1.1
面実装デバイスためのモイスチャー・レベル(260°Cリフローでの鉛フリー測定、235°Cリフローでの鉛フリー以外測定)
マーケットリードタイム(週) : 13 to 16
Datasheet: Highly Integrated Dual-Mode Active Clamp PWM Controller
Rev. 4 (988kB)
Product Overview
»信頼性データを表示する
»材料組成を表示
»No Product Change Notifications exist

Product Compliance Status Description Topology Control Mode fsw Typ (kHz) Stand-by Mode UVLO (V) Short Circuit Protection Latch Soft Start VCC Max (V) Drive Cap. (mA) Package Type
Pb-free
Halide free
 Active     PWM Controller, Highly Integrated Dual-Mode Active Clamp 
Forward
Current/Voltage Mode
Up to 1500
Yes
Yes
Yes
Yes
Yes
20
2000 / 3000
QFN-24
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