霍尔IC A3281LLHLT SOT-23w marking/标记 81L
| 感应范围Sensing Range | 50跳闸，-50G释放 50 Trip，-50G Release |
| 类型Type | 霍尔效应开关 Hall Effect Switch |
| 电源电压Voltage - Supply | 4.2-24V |
| 电源电流Current - Supply | 3.0mA |
| 输出电流Current - Output (Max) | 10µA |
| Description & Applications | CHOPPER-STABILIZED, PRECISION HALL-EFFECT SWITCH The A3240-- Hall-effect switch is an extremely temperature-stable and stress-resistant sensor especially suited for operation over extended temperature ranges to +150°C. Superior high-temperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage normally caused by device overmolding, temperature dependencies, and thermal stress. The device includes on a single silicon chip a voltage regulator, Hall-voltage generator, small-signal amplifier, chopper stabilization, Schmitt trigger, and a short-circuit protected open-collector output to sink up to 25 mA. A south pole of sufficient strength will turn the output on. An on-board regulator permits operation with supply voltages of 4.2 to 24 volts. The first character of the part number suffix determines the device operating temperature range; suffix ‘E–’ is for -40°C to +85°C and L–’ is -40°C to +150°C. Three package styles provide a magnetically optimized package for most applications. Suffix ‘–LH’ is a modified SOT23W surface-mount package, ‘–LT’ is a miniature SOT89/TO- 243AA transistor package for surface-mount applications; while suffix –UA’ is a three-lead ultra-mini-SIP for through-hole mounting. FEATURES Resistant to Physical Stress Superior Temperature Stability Output Short-Circuit Protection Operation From Unregulated Supply Reverse Battery Protection Solid-State Reliability Small Size |
| 描述与应用 | 斩波稳定的，精密 霍尔效应开关 A3240 - 霍尔效应开关是一个极其温度稳定 和耐应力传感器特别适合于在延长的操作 至+150°C的温度范围内出色的高低温性能 成为可能，通过动态偏移取消，从而降低了 通常由器件超模压，温度依存性及热应力引起的剩余偏移电压。 该器件包括一个单一的硅芯片的电压调节器， 霍尔电压发生器，小信号放大器，斩波稳定， 施密特触发器和短路保护，开路集电极输出 吸收高达25 mA。南极足够的强度将关闭 输出。板上稳压器允许操作电源电压 4.2到24伏。 型号后缀的第一个字符决定了设备 工作温度范围;后缀E是-40°C至+85°C和 L-是-40°C至+150°C。有三种封装形式提供磁性 对于大多数应用程序优化的封装。后缀-LH是修改后的 SOT23W表面贴装封装，-LT是一个缩影SOT89/TO- 243AA晶体管封装表面贴装应用，而后缀 UA是一个三引脚超小型SIP通孔安装。 抗物理应力 卓越的温度稳定性 输出短路保护 不受监管的供应操作 反向电池保护 固态可靠性 小型 |
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