LM3622M-4.2/NOPB

Battery Chargers Overview

The LM3622M-4.2/NOPB is a single-channel voltage supervisor manufactured by Texas Instruments, designed for monitoring power supply integrity in electronic systems. It operates within a supply voltage range of 1.5 V to 5.5 V and features an adjustable threshold voltage, with the specific suffix indicating a trip point of 4.2 V. The device provides a push-pull or open-drain output configuration and includes a programmable reset timeout delay ranging from 1 ms to 200 ms. It supports manual reset functionality via an active-low input pin and maintains low quiescent current consumption of typically 1 µA. The component is available in a compact SOT-23-5 package and is rated for operation across an industrial temperature range of -40°C to +85°C.

Battery Chargers Feature Summary

• Provides precise voltage supervision with an adjustable threshold for customized protection levels
• Features a programmable reset timeout delay to accommodate various system startup requirements
• Supports manual reset control through an active-low input pin for system intervention
• Delivers flexible output configurations including push-pull and open-drain options

Battery Chargers Applications

• Monitoring battery-powered devices to prevent deep discharge
• Supervising microprocessor and microcontroller power rails
• Ensuring stable voltage levels in embedded systems during startup
• Providing reset signals for field-programmable gate arrays (FPGAs)

Battery Chargers Procurement Notes

Verify the exact threshold voltage and output configuration required for your design, as these are configurable parameters. Confirm that the SOT-23-5 package dimensions align with your PCB footprint. Ensure the operating temperature range meets your application's environmental specifications. Check for any specific ordering suffixes that might affect availability or packaging type. Cross-reference the datasheet for electrical characteristics relevant to your power supply noise and ripple conditions.

Battery Chargers Selection Notes

Select this component when a single-channel supervisor with adjustable thresholds and programmable delays is needed. Consider the low quiescent current if battery life is a critical factor. Evaluate the need for manual reset functionality versus automatic power-on reset only. Compare the output drive capability against the input requirements of the downstream logic. Assess the package size constraints relative to other available supervisor ICs.

Battery Chargers Part Context

The LM3622 belongs to Texas Instruments' family of voltage supervisors, which also includes variants like the LM3623 and LM3624 offering different channel counts or features. These devices are commonly used alongside other PMIC components to manage power sequencing and fault detection. The LM3622 specifically targets applications requiring a simple, cost-effective solution for voltage monitoring without the complexity of multi-channel supervision.

Battery Chargers Replacement Considerations

Direct replacements may include the LM3622M-4.2M/NOPB or other suffix variations within the same series that match the required threshold and package. Verify compatibility with alternative manufacturers' supervisors such as those from Maxim Integrated or Analog Devices, ensuring pinout and electrical specifications align.