Analog Devices / Maxim Integrated MAX16946 LDO/電流感應開關
Maxim IC MAX16946高電壓高側電流感測LDO/開關具有內部電流限制,防止系統因故障而受到破壞。Maxim IC MAX16946提供固定的穩壓8.5V輸出,或者可調整的3.3V至15V輸出電壓。MAX16946亦可以配置為一個開關元件。這款Maxim IC電流感測LDO/開關的輸入電壓範圍界乎4.5V至18V(能抵受45V電壓),因而非常適合汽車應用,用於為遠端無線電LNA提供幻象電源。MAX16946可監察負載電流,並依照其感測到的負載電流按比例地供應類比輸出電壓。具有準確的內部電流限制,防止出現過載和短路情況。設有故障屏蔽功能,使設備略過短暫的故障情形(例如熱插拔期間電容性負載充電所造成者),從而避免系統誤鳴。MAX16946 電流傳感LDO/開關適用於眾多不同的應用,包括遠端低雜訊放大器(LNA)幻象電源、汽車安全與資訊娛樂系統,以及汽車遠端模組電源。特點
- Switch phantom power-on/off under μC control
- Precision adjustable current limit:
- 300mA (max), TA = +105ºC
- 500mA (max), TA = +85ºC (in SW mode only)
- Regulated output voltage: 8.5V
- Fixed or adjustable between 3.3V and 15V
- Current measurement analog voltage output
- Detect open-load and short-circuit conditions
- Provide open-drain fault signals (SC and OL)
- Overcurrent blanking during startup
- Thermal shutdown
- AEC-Q100 qualified
- -40ºC to +105ºC operating temp range
應用
- Remote LNA phantom power
- Automotive safety and infotainment
- Automotive remote module power
Block Diagram
發佈日期: 2011-02-18
| 更新日期: 2023-04-21
