DS1239-10

PMIC - Supervisors

The DS1239-10 Supervisor is an advanced power monitoring and management device manufactured by Texas Instruments. This device is capable of providing power-management solutions to a wide range of applications, including those requiring both power-on reset (POR) and power-fail reset (PFR). By combining the capabilities of a supervisory IC and the power-management features of a programmable logic device (PLD), the DS1239-10 can provide a comprehensive solution for high-performance, low-cost, and power-efficient systems.

Application Field

The DS1239-10 Supervisory IC is designed for use in a variety of applications. These include portable device power management, battery protection and monitoring, power-on reset (POR), power-fail reset (PFR), power-supply sequencing and the control of non-volatile memory loss in portable applications. It can also be used in consumer, computer, industrial and networking systems.

In consumer electronics, the device can be used to provide system reset on power failure, as well as power-supply sequencing, system reset and power-on reset. It can also be used in industrial systems to provide logic reset on power failure, reset of non-volatile memory, system reset on power up, and non-maskable interrupt (NMI) reset on power-off conditions. Additionally, the device can be used in computer applications to provide system reset and power-on reset.

The DS1239-10 can also be used in networking applications. It can be used to provide logic reset on power failure and reset of non-volatile memory during power failure. Additionally, it can provide system reset on power-up and NMI reset on power off events.

Working Principle

The DS1239-10 Supervisor IC is based on the Texas Instruments Real-Time Clock (RTC) technology. This technology enables the device to detect and respond to power-fail events. When the device detects a power-fail condition, it can take a variety of actions, such as resetting or otherwise directing the system\'s operation.

The device also uses a programmable system configuration, or PCON, to provide flexibility in programming the power reset events. The PCON allows the user to program the reset time, reset output, reset action, enable/disable startup delay, and enable/disable sleep mode.

The DS1239-10 includes an internal reference clock and an integrated watchdog timer. The reference clock is used for monitoring the system\'s clock speed. The watchdog timer provides an additional layer of protection for the system, allowing it to detect and respond to periodic failures.

Finally, the device is equipped with a self-monitoring feature, which allows the device to detect and respond to abnormal conditions, such as over- and under-voltage conditions. This feature helps ensure that system operation remains stable and reliable.

Conclusion

The DS1239-10 is a highly versatile power-monitoring and management device capable of providing reset and protection services for a variety of applications. Its combination of supervisory and PLD features, reference clock and watchdog timer, and self-monitoring features create a comprehensive solution that can be tailored to specific needs.

For embedded systems requiring additional protection, the DS1239-10 Supervisor IC provides a reliable and cost-effective solution that can be easily integrated into most designs.