Analog Devices / Maxim Integrated MAX16056–MAX16059 纳瓦级功耗监控电路

Maxim MAX16056–MAX16059 纳瓦级功耗监控电路是监控单系统电源电压的超低电流微处理器监控电路。当 V_CC 电源电压降至工厂预设的复位门限以下，手动复位下拉或看门狗定时器运行 (MAX16056/MAX16058) 时，这些器件将一个低电平有效复位信号置为有效。 V_CC 上升至复位门限以上后，复位输出在一个可调复位超时周期内仍保持有效。工厂预设的复位门限电压介于 1.575V 至 4.625V，增幅约为 100mV。该系列器件通过外部电容调节复位和看门狗超时周期。 MAX16056/MAX16058 带有看门狗定时器，看门狗选择输入 (WDS) 可将看门狗超时周期乘以128。 MAX16057/MAX16059 不带看门狗功能。 MAX16056–MAX16059 提供推挽或漏极开路输出配置。

The Analog Devices MAX16056 and MAX16058 are offered in an 8-pin TDFN package, and the MAX16057 and MAX16059 are offered in a 6-pin TDFN package. These devices are fully specified over the -40°C to +125°C automotive temperature range.

特性

Ultra-low 125na supply current
1.1V to 5.5V operating supply range
Configurable circuit enables flexible designs
Factory-set reset threshold options from 1.575V to 4.625V in approximately 100mV increments
Capacitor-adjustable reset timeout
Capacitor-adjustable watchdog timeout (MAX16056 and MAX16058)
Watchdog timer capacitor open detect function
Optional watchdog disable function (MAX16056 and MAX16058)

Manual-reset input
Push-pull or open-drain active-low reset output options
Power-supply transient immunity
Guaranteed active-low RESET valid for V_CC ≥ 1.1V
-40°C to +125°C operating temperature range
Package options
- MAX16057 and MAX16059: TDFN-6 package
- MAX16056 and MAX16058: TDFN-8 package