概要
説明
The Intersil ISL8723 and ISL8724 are 4 channel sequencers controlling the on and off sequence of voltages with undervoltage supply fault protection and a sequence completed signal (RESET). For larger systems, more than 4 voltages can be sequenced by a simple connection of multiple IC's. These sequencers use an integrated charge pump to drive 4 external low-cost N-channel MOSFET switch gates above the IC bias voltage by 5. 3V. These IC's can be biased from and control any supply from 2. 5V to 5V and additionally monitor any voltage above 0. 7V. Individual product descriptions follow. The four channel ISL8723 (ENABLE input), ISL8724 (ENABLE input) offer the designer 4 voltage control when it is required that all four rails are in minimal compliance prior to turn on and that compliance must be maintained during operation. The ISL8723 has a low power standby mode when it is disabled suitable for battery powered applications. External resistors provide flexible voltage threshold programming of monitored voltages. Delay and sequencing timing are programmable by external capacitors for both ramp up and ramp down.
特長
- Enables arbitrary turn-on and turn-off sequencing of up to four power supplies (0.7V to 5V)
- Operates from 2.5V to 5V supply voltage
- Supplies VDD +5.3V of charge pumped gate drive
- Adjustable voltage slew rate for each rail
- Multiple sequencers can be easily daisy-chained to sequence an infinite number of independent voltages
- Glitch immunity
- Undervoltage lockout for each monitored supply voltage
- 30µA Sleep State (ISL8723)
- Active high (ISL8723) or low (ISL8724) ENABLE input
- Pb-free (RoHS compliant)
製品比較
アプリケーション
- Graphics cards
- FPGA/ASIC/microprocessor/PowerPC supply sequencing
- Network Routers
- Telecommunications Systems
ドキュメント
ピックアップ
ログイン後、ご登録が可能となります。
|
|
|
|
|---|---|---|
| 分類 | タイトル | 日時 |
| データシート | PDF 713 KB | |
| Price Increase Notice | PDF 208 KB | |
| ホワイトペーパー | PDF 295 KB | |
| 製品変更通知 | PDF 223 KB | |
| 製品変更通知 | PDF 106 KB | |
| 製品変更通知 | PDF 173 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 | |
8件
|
||
設計・開発
モデル
ECADモデル
[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。
Processing table
| QFN | Tube | 750 | ||
| QFN | Reel | 6000 |
Tips for Using This Parametric Table:
- Hide Filters button in header: Collapse or expands filters
- Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
- Reset button in header: Reset all filters to the page default
- Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
- Export button in header: Export the filtered results of the table to an Excel document
- Filter parts search bar in header: Type to filter table results by part number
- Hide column button in column headers: Select to hide columns in table
- AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product