Analog Devices / Maxim Integrated MAX16946 LDO/电流感应开关

Maxim IC MAX16946高电压、高侧电流感应LDO/开关配有内部电流限制,以防止系统因出现故障状况而受损。Maxim IC MAX16946提供了固定稳压的8.5V输出电压或可调3.3V-15V输出电压。亦可将MAX16946配置成一个开关。该款Maxim IC电流感应LDO/开关输入电压范围为4.5V-18V(45V容限),非常适合在汽车应用中用于为远程无线射频LNA提供幻象电源。MAX16946将监测负载电流,提供与所检测到的负载电流成正比的模拟输出电压。精确的电流限制可防御超负荷和短路状况。故障屏蔽特性能使设备忽略瞬时故障,例如热插拔期间电容性负载充电引起的故障,可以防止系统的假警报。MAX16946 电流检测LDO/开关设计用于广泛的应用,包括遥控LNA幻象电源、汽车安全和信息娱乐以及汽车遥控模块电源。

特性

  • 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

应用

  • Remote LNA phantom power
  • Automotive safety and infotainment
  • Automotive remote module power

Block Diagram

框图 - Analog Devices / Maxim Integrated MAX16946 LDO/电流感应开关
发布日期: 2011-02-18 | 更新日期: 2023-04-21