A1205: Continuous-Time Bipolar Switch

The Allegro A1205 Hall-effect bipolar switch is a next-generation replacement and extension of the popular Allegro A3134 bipolar switch. The A1205 has identical specifications as the A1201 but is recommended for applications that require pulsing V_CCto conserve power. For standard applications, where V_CCis constant, please refer to the A1201 through A1204 devices.

总体而言，使用BICMOS技术生产的A120X系列包括连续时间设备，可提供快速接通时间和低噪声操作。在包装后执行设备编程，以确保通过消除可以通过包应力引起的偏移来提高开关点精度。独特的霍尔元素几何形状和低偏移放大器有助于最大限度地减少噪音，并降低通常由设备包覆成型，温度偏移和热应力引起的剩余偏移电压。

The A120x Hall-effect bipolar switches include the following on a single silicon chip: voltage regulator, Hall-voltage generator, small-signal amplifier, Schmitt trigger, and NMOS output transistor. The integrated voltage regulator permits operation from 3.8 to 24 V. The extensive on-board protection circuitry makes possible a ±30 V absolute maximum voltage rating for superior protection in automotive and motor commutation applications, without adding external components.

• AEC-Q100汽车资格
• 我deal for applications that require pulsing V_CCto conserve power
• Continuous-time operation
• Fast power-on time
• 低噪声
• Stable operation over full operating temperature range
• 反向电池保护
• 固态可靠性
• 工厂在线端编程，以获得最佳性能
• Robust EMC performance
• High ESD rating
• Regulator stability without a bypass capacitor