具有可编程延迟和手动复位功能的低静态电流监控器

TPS3808 系列微处理器监控电路可监控从 0.4V 至 5V 的系统电压，并在 SENSE 电压 降至预设阈值以下或手动复位 (MR) 引脚降至逻辑低电平时，将开漏 RESET 信号置为有效。在SENSE 电压 和手动复位 (MR) 返回值超出相应阈值时，RESET 输出将在用户可调延迟时间内保持低电平。\n\nTPS3808 器件使用精密电压基准，可在 VIT ≤3.3V 时达到 0.5% 的阈值精度。通过断开 CT 引脚，可将复位延迟时间设置为 20ms；通过使用电阻将 CT 引脚连接至 VDD，可将复位延迟时间设置为 300ms，或通过将 CT 引脚连接到外部电容器，用户可在 • 上电复位发生器具有可调节延迟时间：1.25ms 至 10s\n• 超低静态电流：2.4µA（典型值）\n• 高阈值精度：0.5% 典型值\n• 提供适用于标准电压轨的 0.9V 至 5V 固定阈值电压且可调节电压低至 0.4V\n• 手动复位 (MR) 输入\n• 开漏复位 输出\n• 温度范围：–40°C 至 125°C\n• 小型 SOT-23 和 2mm × 2mm WSON 封装;

TI

德州仪器

TPS3808E-Q1 Low-Quiescent-Current, Programmable-Delay Supervisory Circuit for Automotive

1 Features • AEC-Q100 qualified with the following results: – Device temperature grade 1: –40°C to +125°C • Undervoltage monitoring for power rails – Reliable monitoring with high threshold accuracy (1 typical) – Fixed voltage threshold options from 0.9 V to 5 V – Adjustable voltage option

文件：1.34308 Mbytes 页数：26 Pages

TI

德州仪器

TPS3808E Low-Quiescent-Current, Programmable-Delay Supervisory Circuit

1 Features • Undervoltage monitoring for power rails – Reliable monitoring with high threshold accuracy (1 typical) – Fixed voltage threshold options from 0.9V to 5V – Adjustable voltage option available (0.405) – Separate Sense pin for monitoring and VDD pin for power – Device temperature

文件：1.36292 Mbytes 页数：28 Pages

TI

德州仪器

TPS3808E-Q1 Low-Quiescent-Current, Programmable-Delay Supervisory Circuit for Automotive

1 Features • AEC-Q100 qualified with the following results: – Device temperature grade 1: –40°C to +125°C • Undervoltage monitoring for power rails – Reliable monitoring with high threshold accuracy (1 typical) – Fixed voltage threshold options from 0.9 V to 5 V – Adjustable voltage option

文件：1.35508 Mbytes 页数：28 Pages

TI

德州仪器

TPS3808E-Q1 Low-Quiescent-Current, Programmable-Delay Supervisory Circuit for Automotive

1 Features • Power-on reset generator with adjustable delay time: 1.25 ms to 10 s • Very low quiescent current: 0.6 μA typical • High threshold accuracy: 1 typical • Fixed threshold voltages for standard voltage rails from 0.9 V to 5 V and adjustable voltage down to 0.405 V are available •

文件：1.01156 Mbytes 页数：21 Pages

TI

德州仪器

TPS3808E Low-Quiescent-Current, Programmable-Delay Supervisory Circuit

1 Features • Power-on reset generator with adjustable delay time: 1.25 ms to 10 s • Very low quiescent current: 0.6 μA typical • High threshold accuracy: 1 typical • Fixed threshold voltages for standard voltage rails from 0.9 V to 5 V and adjustable voltage down to 0.405 V are available •

文件：1.03492 Mbytes 页数：22 Pages

TI

德州仪器

TPS3808E Low-Quiescent-Current, Programmable-Delay Supervisory Circuit

1 Features • AEC-Q100 qualified with the following result: – Device temperature grade 1: -40°C to +125°C • Undervoltage monitoring for power rails – Reliable monitoring with high threshold accuracy (1 typical) – Fixed voltage threshold options from 0.9 V to 5 V – Adjustable voltage option

文件：1.3515 Mbytes 页数：26 Pages

TI

德州仪器

TPS3808E Low-Quiescent-Current, Programmable-Delay Supervisory Circuit

1 Features • Undervoltage monitoring for power rails – Reliable monitoring with high threshold accuracy (1 typical) – Fixed voltage threshold options from 0.9V to 5V – Adjustable voltage option available (0.405) – Separate Sense pin for monitoring and VDD pin for power – Device temperature

文件：1.34997 Mbytes 页数：26 Pages

TI

德州仪器

TPS3808E Low-Quiescent-Current, Programmable-Delay Supervisory Circuit

1 Features • AEC-Q100 qualified with the following result: – Device temperature grade 1: -40°C to +125°C • Undervoltage monitoring for power rails – Reliable monitoring with high threshold accuracy (1 typical) – Fixed voltage threshold options from 0.9 V to 5 V – Adjustable voltage option

文件：1.3515 Mbytes 页数：26 Pages

TI

德州仪器

TPS3808E Low-Quiescent-Current, Programmable-Delay Supervisory Circuit

1 Features • Undervoltage monitoring for power rails – Reliable monitoring with high threshold accuracy (1 typical) – Fixed voltage threshold options from 0.9V to 5V – Adjustable voltage option available (0.405) – Separate Sense pin for monitoring and VDD pin for power – Device temperature

文件：1.34997 Mbytes 页数：26 Pages

TI

德州仪器