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The L99LD20 is a flexible LED driver, which is specifically designed for the control of two independent high brightness LED strings for automotive front lighting applications. It consists of a high efficiency monolithic dual buck converter.
The buck converters integrate n-channel MOSFET which is driven by a bootstrap circuit.
When more than two LED channels are required on one module, then more devices L99LD20 can be combined; also with L99LD21 device - incorporating Boost Controller - from which L99LD20 derivate.主な特徴
- AEC-Q100 qualified
- General
- ST SPI communication v4.1
- 5.5 to 24 V Operating battery voltage range
- Load dump protected
- QFN40L 6x6 (wettable flanks) with exposed pad
- Timeout watchdog and limp home function
- Low standby current
- Buck section
- Integrated switching mosfets
- Lossless current sensing without need of external components
- Very accurate LED current setting programming inductor's peak current and peak-to-peak current ripple
- Adjustable peak current by SPI
- Adjustable current ripple by SPI
- Integrated PWM generation unit with 10-bit resolution and phase shift
- Peak current control
- Constant VLED x TOFF architecture
- Protection and diagnostic
- Battery under voltage
- Temperature warning (2 thresholds)
- Overtemperature shutdown
- LED voltage digital feedback through SPI
- Buck outputs short circuit and open load protection
サンプル & 購入
| 製品型番 | 製品ステータス | Quantity | 概算価格（USS） | パッケージ | 梱包タイプ | 温度（℃） | ECCN (US) | Country of Origin | 詳細情報 | 販売代理店からオーダー | STからオーダー | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| L99LD20Q6TR | Active | 1000 | 1.753 | VFQFPN 6X6 | Tape And Reel | - | - | EAR99 | MALAYSIA | 在庫チェック | 購入 | |
| L99LD20Q6 | Active | 1000 | 1.753 | VFQFPN 6X6 | Tray | - | - | EAR99 | MALAYSIA | 販売代理店に在庫がない場合は、STのセールスオフィスまでお問い合わせください | ||
L99LD20Q6
製品ステータス
ActiveQuantity
1000Unit Price (US$)
1.753*(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
| 製品型番 | 製品ステータス | パッケージ | グレード | RoHSコンプライアンスグレード | 材料宣誓書** |
|---|---|---|---|---|---|
| L99LD20Q6 | Active | VFQFPN 6X6 | オートモーティブ | Ecopack2 | |
| L99LD20Q6TR | Active | VFQFPN 6X6 | オートモーティブ | Ecopack2 |
(**) st.comで提供している材料宣誓書は、パッケージ･ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください
