会社ブログについて Mingjiada Supply Maxim MAX6864 And MAX6866 Nanopower µP Supervisory Circuits

Mingjiada Supply Maxim MAX6864 And MAX6866 Nanopower µP Supervisory Circuits

Mingjiada Electronics has long been a supplier of the MAX6864/MAX6866 series of nanoampere-class microprocessor (µP) monitoring circuits from Maxim (now part of ADI). Designed for battery-powered, portable and low-power embedded systems, these devices provide voltage monitoring, reset output and system protection functions whilst consuming extremely low quiescent current, ensuring reliable power management for MCUs, DSPs and logic circuits.

Nanoampere-level power consumption: balancing monitoring and battery life
In applications such as IoT end devices, wearable devices, portable medical electronics and industrial sensors, a system’s standby power consumption directly affects battery life. Traditional microprocessor monitoring circuits typically require microampere-level operating currents, whereas the MAX6864/MAX6866 series is characterised by nanoampere-level quiescent current, with a typical supply current as low as approximately 150 nA, helping to reduce system standby power consumption and extend battery life.

The MAX6864/MAX6866 series devices monitor the microprocessor’s supply voltage and generate a reset signal when the power is applied, removed, or when the voltage drops below the reset threshold. This ensures the MCU remains under control under abnormal voltage conditions, preventing programme runaway or data corruption. Additionally, the devices incorporate a watchdog timer and a manual reset input, facilitating rapid system recovery in the event of an abnormal freeze or when manual intervention is required.

The MAX6864/MAX6866 series is primarily designed for embedded applications with high power consumption and reliability requirements, and offers the following features:
Ultra-low operating current of 170 nA (typical)
Reset thresholds ranging from +1.575 V to +4.625 V, with intervals of approximately 100 mV
Six selectable minimum reset delay times, ranging from 10 ms to 1200 ms
Optional manual reset function
Optional watchdog timer function
Insensitive to short-term transients on VCC
Guaranteed reset validity down to VCC = +1.1 V
Three reset output options
Push-pull/RESET
Push-pull RESET
Open-drain/RESET
No external components required
Compact 5-pin SOT23 package

Mingjiada Electronics supplies [Maxim] MAX6864/MAX6866 nanoamp-level power consumption microprocessor (µP) monitoring circuits, including but not limited to the following:
MAX6864UK16D3S
MAX6864UK22D3L
MAX6864UK23D3S
MAX6864UK26D3S
MAX6864UK29D3L
MAX6864UK29D3S
MAX6864UK31D3S
MAX6866UK16D3S
MAX6866UK23D3S
MAX6866UK26D3S
MAX6866UK29D3L
MAX6866UK29D3S
MAX6866UK31D3S

Typical applications include: blood glucose monitors/patient care monitors, MP3 players/pagers, PDAs and mobile phones, and portable battery-powered devices. For low-power systems requiring long standby periods and occasional wake-up operations, the MAX6864/MAX6866 can enhance system reliability and immunity to interference without significantly increasing the power consumption budget.

For further information on the [Maxim] MAX6864/MAX6866 nanoampere-class microprocessor (µP) monitoring circuits, or to enquire about sample prices, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further supply details.