Datasheet Texas Instruments LP8557 — Даташит
| Производитель | Texas Instruments |
| Серия | LP8557 |
High-Efficiency LED Backlight Driver for Tablets
Datasheets
LP8557 High-Efficiency LED Backlight Driver For Tablets datasheet
PDF, 1.7 Мб, Версия: B, Файл опубликован: 18 дек 2015
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Цены
 Купить LP8557 на РадиоЛоцман.Цены — от 66 до 276 ₽20 предложений от 13 поставщиков Микросхема: IC LED DRV RGLTR PWM 16DSBGA | |||
| LP8557IAYFQR Texas Instruments | 66 ₽ | ||
| LP8557AYFQR Texas Instruments | от 75 ₽ | ||
| LP8557AYFQT Texas Instruments | 79 ₽ | ||
| LP8557IAYFQT Texas Instruments | по запросу | ||
Статус
| LP8557AYFQR | LP8557AYFQT | LP8557IAYFQR | LP8557IAYFQT | |
|---|---|---|---|---|
| Статус продукта | В производстве | В производстве | В производстве | В производстве |
| Доступность образцов у производителя | Нет | Нет | Да | Да |
Корпус / Упаковка / Маркировка
| LP8557AYFQR | LP8557AYFQT | LP8557IAYFQR | LP8557IAYFQT | |
|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 |
| Pin | 16 | 16 | 16 | 16 |
| Package Type | YFQ | YFQ | YFQ | YFQ |
| Industry STD Term | DSBGA | DSBGA | DSBGA | DSBGA |
| JEDEC Code | S-XBGA-N | S-XBGA-N | S-XBGA-N | S-XBGA-N |
| Package QTY | 3000 | 250 | 3000 | 250 |
| Carrier | LARGE T&R | SMALL T&R | LARGE T&R | SMALL T&R |
| Маркировка | D40 | D40 | D41 | D41 |
| Thickness (мм) | .42 | .42 | .42 | .42 |
| Pitch (мм) | .4 | .4 | .4 | .4 |
| Max Height (мм) | .675 | .675 | .675 | .675 |
| Mechanical Data | Скачать | Скачать | Скачать | Скачать |
Параметры
| Parameters / Models | LP8557AYFQR | LP8557AYFQT | LP8557IAYFQR | LP8557IAYFQT |
|---|---|---|---|---|
| Количество каналов | 6 | 6 | 6 | 6 |
| Duty Cycle(Max), % | 100 | 100 | 100 | 100 |
| LED | 48 | 48 | 48 | 48 |
| LED Current Per Channel, мА | 25 | 25 | 25 | 25 |
| Рабочий диапазон температур, C | от -30 до 85 | от -30 до 85 | от -30 до 85 | от -30 до 85 |
| Package Group | DSBGA | DSBGA | DSBGA | DSBGA |
| Package Size: mm2:W x L, PKG | See datasheet (DSBGA) | See datasheet (DSBGA) | See datasheet (DSBGA) | See datasheet (DSBGA) |
| Peak Efficiency, % | 93 | 93 | 93 | 93 |
| Rating | Catalog | Catalog | Catalog | Catalog |
| Shutdown Current(Typ), uA | 0.001 | 0.001 | 0.001 | 0.001 |
| Special Features | CABC,Edge Rate Control | CABC,Edge Rate Control | CABC,Edge Rate Control | CABC,Edge Rate Control |
| Switching Frequency(Max), kHz | 1000 | 1000 | 1000 | 1000 |
| Topology | Boost | Boost | Boost | Boost |
| Тип | Inductive | Inductive | Inductive | Inductive |
| Vin(Max), В | 5.5 | 5.5 | 5.5 | 5.5 |
| Vin(Min), В | 2.7 | 2.7 | 2.7 | 2.7 |
| Vout(Max), В | 28 | 28 | 28 | 28 |
| Vout(Min), В | 7 | 7 | 7 | 7 |
Экологический статус
| LP8557AYFQR | LP8557AYFQT | LP8557IAYFQR | LP8557IAYFQT | |
|---|---|---|---|---|
| RoHS | Совместим | Совместим | Совместим | Совместим |
Application Notes
- Schottky Diode Selection in Asynchronous Boost ConvertersPDF, 491 Кб, Файл опубликован: 6 сен 2016
Asynchronous boost converters require a Schottky diode as the rectifying element due to the diode's lowforward voltage and fast turn-on time. Because of these characteristics asynchronous boost converterscan have as good as, or better efficiency, than synchronous boost converters. This is especially true whenthe boost conversion ratios (VOUT/VIN) are high, and the Schottky diode conduction t - Inductor Selection in Boost Converters for LCD Backlight ApplicationsPDF, 764 Кб, Файл опубликован: 24 окт 2016
White LED drivers for LCD back-light applications are often designed for battery-powered devices. This makes circuit size and efficiency crucial. Because of this, selecting the optimal inductor is one of the mostimportant aspects of the design. This application note discusses the important parameters of the inductorand how to select the right inductor for the application.
Модельный ряд
Серия: LP8557 (4)
Классификация производителя
- Semiconductors> Power Management> LED Driver> Backlight
