MAX1749

 

器件号	Replacement	Explanation

说明

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The MAX1749 allows for a constant vibration force while operating from a +2.5V to +6.5V input range and delivering up to 120mA. A PMOS pass transistor allows the 80µA supply current to remail independent of the load.

The output voltage can be adjusted from +1.25V to V_IN with an external resistor-divider. When turned off (ON = low), the MAX1749 supply current drops to 1µA (max) to minimize battery drain. Other features include short-circuit protection, thermal shutdown protection, and reverse battery protection. The MAX1749 is available in a 5-pin SOT23 package.

MAX1749：典型工作电路 放大+

关键特性

• Fixed 1.25V or Adjustable (1.25V to 6.5V) Output
• Low Cost
• Thermal Overload Protection
• Output Current Limit
• Reverse Battery Protection
• Low 0.1nA Off Supply Current
• Low 80µA Full-Load Supply Current

应用

• 寻呼机振动电机驱动器
• 无线手机震动电机驱动器