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Linear Regulators (LDO) | CS8151
概览
CS8151 是一款精确 5.0 V，100 mA 微功耗稳压器，具有极低静止电流（200 mA 负载下典型值为 400 mA）。5.0 V 输出准确度在 +/-2% 范围内，同时提供 100 mA 负载电流，典型漏电压为 400 mV。微处理器控制逻辑包括监督、唤醒和 RESETbar。低静止电流和完全控制逻辑的独特组合，使得 CS8151 适用于任何电池供电的、微处理器控制的设备。CS8151 唤醒功能会将微处理器带出睡眠模式。微处理器又通过发出监督信号将其唤醒状态信号发回 CS8151。监督逻辑功能监督微处理器中的输入信号 (WDI)。CS8151 对监督信号的下降边做出响应，每个唤醒期间应该至少一次。收到正确的监督信号时，会在唤醒信号线路上发出下降边。RESETbar 独立于 VIN，在低至 1.0 V 的输出电压下能够正常运行。在三种情况中的任一情况下，均发出 RESETbar 信号。在通电期间，RESETbar 将保持低电平，直到输出电压进行调节。在运行期间，如果输出电压移至调节限值以下，RESETbar 则会切换为低电平，并在恢复为正常输出电压调节之前保持低电平。最后，如果稳压器在唤醒期间内未收到监督信号，则会发出 RESETbar 信号。RESETbar 脉宽、唤醒信号频率和唤醒延迟时间均通过一个外部电容器 CDelay 设置。该稳压器针对短路、过电压和热崩溃情况进行了保护。此器件可承受 74 V 峰值瞬变，适用于汽车环境。
- Body and Chassis
- Powertrain
- Safety
- Automotive
- 5V +/-2% / 100 mA Output Voltage
- Micropower Compatible Control Functions:
- Wake Up
- Watchdog
- RESETbar - Low Dropout Voltage: 400mV @ 100mA
- Low Sleep Mode Quiescent Current (400mA typ)
- Protection Features:
- Thermal Shutdown
- Short Circuit
- 74V Load Dump
- Reverse Transient (-50V) - Internally Fused Leads in DIP-16 and SO-16L Packages
- Pb-Free Packages are Available
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Obsolete
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