Product overview
概要
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.
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All features
- 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
All resources
| Resource title | Latest update |
|---|
製品スペック (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 10 Oct 2018 |
10 Oct 2018
|
アプリケーションノート (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 11 Dec 2019 |
11 Dec 2019
|
セレクション･ガイド (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 04 Jan 2021 |
04 Jan 2021
|
EDA Symbols, Footprints and 3D Models
STMicroelectronics - L99LD20
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Symbols
Footprints
3D models
品質 & 信頼性
| 製品型番 | Marketing Status | 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 |
NRND
|
VFQFPN 6X6 | オートモーティブ | Ecopack2 | |
| L99LD20Q6TR |
量産中
|
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
サンプル & 購入
| 製品型番 | 販売代理店から購入 | STから購入 | 製品ステータス | ECCN (US) | ECCN (EU) | 梱包タイプ | パッケージ | 温度（℃） | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小 | 最大 | |||||||||||
| L99LD20Q6TR | 1 distributors | Buy Direct |
量産中
|
EAR99 | NEC | Tape And Reel | VFQFPN 6X6 | - | - | THAILAND | 1.753 / 1k | |
| L99LD20Q6 |
販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください |
NRND
|
EAR99 | NEC | Tray | VFQFPN 6X6 | - | - | THAILAND | 1.753 / 1k | ||
製品ステータス
NRNDECCN (US)
EAR99Budgetary Price (US$)*/Qty
1.753 / 1k（*）概算用の希望小売単価（US$）です。現地通貨でのお見積りについては、STのセールス･オフィスまたは販売代理店までお問い合わせください。
