LP8869-Q1
- AEC-Q100 Qualified for automotive applications:
- Device temperature grade 1:
–40°C to +125°C, TA
- Device temperature grade 1:
- Functional safety capable
- Documentation available to aid functional safety system design
- 3-, 4-Channel 120-mA current sinks
- High dimming ratio of 10 000:1 at 100 Hz
- Current matching 1% (typical)
- LED String current up to 120 mA per channel
- Outputs can be combined externally for higher current per string
- Integrated boost and SEPIC converter for LED string power
- Input voltage operating range 4.5 V to 40 V
- Output voltage up to 45 V
- Integrated 3.3-A Switch FET
- Switching frequency 300 kHz to 2.2 MHz
- Switching synchronization input
- Spread spectrum for lower EMI
- Fault detection and protection
- Fault output
- Input voltage OVP, UVLO and OCP
- Boost block SW OVP and output OVP
- LED open and short fault detection
- Power-Line FET control for battery bus protection
- Automatic LED current reduction with external temperature sensor
- Thermal shutdown
The LP8867-Q1, LP8869-Q1 is an automotive highly-integrated, low-EMI, easy-to-use LED driver with DC-DC converter. The DC-DC converter supports both boost and SEPIC mode operation. The device has four or three high-precision current sinks that can be combined for higher current capability.
The DC-DC converter has adaptive output voltage control based on the LED forward voltages. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. For EMI reduction DC-DC supports spread spectrum for switching frequency and an external synchronization with dedicated pin. A wide-range adjustable frequency allows the LP886x-Q1 to avoid disturbance for sensitive frequency band.
The input voltage range for the LP886x-Q1 is from 4.5 V to 40 V to support automotive start-stop and load dump condition. The LP886x-Q1 integrates extensive fault detection features.
技術(shù)文檔
| 類型 | 標(biāo)題 | 下載最新的英語版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 數(shù)據(jù)表 | LP8867-Q1, LP8869-Q1 Low EMI Automotive LED Driver with 4-, 3- Channels 數(shù)據(jù)表 (Rev. B) | PDF | HTML | 2020年 1月 16日 | ||
| 白皮書 | Selecting Functional Safety Products for Automotive and Industrial ApplicationsK | 2020年 6月 9日 | ||||
| 白皮書 | Selecting Functional Safety Products for Automotive and Industrial ApplicationsN | 2020年 6月 9日 | ||||
| 白皮書 | 簡(jiǎn)化汽車和工業(yè)中的功能性安全認(rèn)證 | 英語版 | 2020年 6月 9日 | |||
| 功能安全信息 | LP886x-Q1 Functional Safety FIT Rate and Failure Mode Distribution (Rev. A) | 2020年 2月 14日 | ||||
| 應(yīng)用手冊(cè) | Some Guidelines and Tips for the LED Driver Application | 2019年 8月 14日 | ||||
| EVM 用戶指南 | LP8867-Q1 Evaluation Module User's Guide | 2018年 12月 9日 |
設(shè)計(jì)和開發(fā)
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LP8867Q1EVM — 適用于汽車照明的四通道 LED 驅(qū)動(dòng)器評(píng)估模塊；
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| 封裝 | 引腳 | CAD 符號(hào)、封裝和 3D 模型 |
|---|---|---|
| HTSSOP (PWP) | 20 | Ultra Librarian |
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- RoHS
- REACH
- 器件標(biāo)識(shí)
- 引腳鍍層/焊球材料
- MSL 等級(jí)/回流焊峰值溫度
- MTBF/時(shí)基故障估算
- 材料成分
- 鑒定摘要
- 持續(xù)可靠性監(jiān)測(cè)
- 制造廠地點(diǎn)
- 封裝廠地點(diǎn)
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