High-Performance Notebook PWM Controller Evaluation Board
The ISL6269AEVAL2Z evaluation board is used to demonstrate the performance of the ISL6269A single-phase synchronous buck PWM controller featuring Renesas' Robust Ripple...
The ISL6269A IC is a Single-phase Synchronous-Buck PWM controller featuring Intersil's Robust Ripple Regulator R3™ Technology that delivers truly superior dynamic response to input voltage and output load transients. Integrated MOSFET drivers and bootstrap diode result in fewer components and smaller implementation area. Intersil’s R3™ Technology combines the best features of fixed-frequency PWM and hysteretic PWM while eliminating many of their shortcomings. R3™ Technology employs an innovative modulator that synthesizes an AC ripple voltage signal VR, analogous to the output inductor ripple current. The AC signal VR enters a window comparator where the lower threshold is the error amplifier output VCOMP, and the upper threshold is a programmable voltage reference VW, resulting in generation of the PWM signal. The voltage reference VW sets the steady-state PWM frequency. Both edges of the PWM can be modulated in response to input voltage transients and output load transients, much faster than conventional fixed-frequency PWM controllers. Unlike a conventional hysteretic converter, the ISL6269A has an error amplifier that provides ±1% voltage regulation at the FB pin. The ISL6269A has a 1. 5ms digital soft-start and can be started into a prebiased output voltage. A resistor divider is used to program the output voltage setpoint. The ISL6269A can be configured to operate in Continuous Conduction Mode (CCM) or Diode Emulation Mode (DEM), which improves light-load efficiency. In CCM the controller always operates as a synchronous rectifier, however when DEM is enabled, the low-side MOSFET is permitted to stay off, blocking negative current flow into the low-side MOSFET from the output inductor.
|
|
|
---|---|---|
分類 | タイトル | 日付 |
データシート | PDF 793 KB | |
カタログ | PDF 5.63 MB 英語 | |
製品変更通知 | PDF 169 KB | |
製品変更通知 | PDF 202 KB | |
製品変更通知 | PDF 326 KB | |
製品変更通知 | PDF 398 KB | |
製品変更通知 | PDF 106 KB | |
製品変更通知 | PDF 173 KB | |
製品変更通知 | PDF 79 KB | |
製品変更通知 | PDF 248 KB | |
アプリケーションノート | PDF 509 KB | |
アプリケーションノート | PDF 397 KB | |
その他資料 | PDF 303 KB | |
13 items
|
Software title
|
Software type
|
会社名
|
---|---|---|
iSim:PE Offline Simulation Tool iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
|
Simulator | ルネサス |
1 item
|
The ISL6269AEVAL2Z evaluation board is used to demonstrate the performance of the ISL6269A single-phase synchronous buck PWM controller featuring Renesas' Robust Ripple...
[製品選択]テーブル内の製品名をクリックするとSamacSysが提供する回路図シンボル、PCBフットプリント、3D CADモデルがご確認いただけます。 お探しのシンボルやモデルが見つからない場合、Webサイトから直接リクエストできます。
注文可能な製品番号を選択
発注型名 | サンプル |
---|---|
ISL6269ACRZ | Availability |
ISL6269ACRZ-T | Availability |