PT7M6101 Ultra Low Voltage Detectors

The PTB78560x is a series of 30 W rated isolated DC/DC converters designed to operate from a standard 24 V or 48 V telecom central office (CO) supply. Housed in a 12 package, each model features a wide adjustable output voltage that can be set to one of the common intermediate bus voltages of 3.3 V, 5 V, or 12 V. The PTB78560 series incorporates Auto-Track, a feature that simplifies the power-up sequencing of multiple Power Modules operating from the same intermediate bus. During a power-up cycle, modules with this feature can follow a common ramp voltage applied to an input called Track. The PTB78560 series is specifically designed to control the Track voltage of any number of non-isolated downstream modules powered from its output, ensuring that the outputs of the downstream modules rise simultaneously during power-up. The PTB78560B (3.3 V) has an additional sequenced output, VO Seq, which also rises with the Track voltage, allowing it to power up simultaneously with the outputs from other Power Modules under the control of Auto-Track. Whether used for power-up sequencing or as a stand-alone module, the PTB78560 series includes many other features expected of high-performance DC/DC converter modules. Precise output voltage regulation is ensured with a differential remote sense. Operational features include input undervoltage lockout (UVLO) and dual-logic output enable control. Overcurrent and overtemperature protection ensure reliability against load faults. Typical applications include distributed power architectures in both telecom and computing environments, particularly in complex digital systems requiring power sequencing of multiple power supply rails.

The PTB78560x series of DC/DC converters is engineered to deliver reliable power conversion in demanding telecom and computing applications. The converters are designed to accept standard telecom supply voltages of 24 V or 48 V, making them versatile for integration into existing systems. The compact 12 package design allows for efficient space utilization in various electronic assemblies.

The adjustable output voltage feature provides flexibility in configuring the converters to match the specific needs of various applications, including the ability to set the output to 3.3 V, 5 V, or 12 V. This adaptability is crucial in environments where different voltage levels are required for different components within a system.

The Auto-Track feature is particularly valuable for systems that utilize multiple power modules. By enabling modules to synchronize their power-up sequences, it mitigates the risk of inrush currents and voltage discrepancies that could potentially damage sensitive components. The Track input allows for a controlled ramp-up of voltage, ensuring that all connected modules receive power in a coordinated manner.

The PTB78560B model includes an additional sequenced output, VO Seq, which enhances its functionality in power sequencing applications. This output is designed to rise in tandem with the Track voltage, providing an additional layer of control for downstream modules that may require specific timing for power-up.

In terms of operational reliability, the series incorporates features such as differential remote sensing for precise voltage regulation, ensuring that the output voltage remains stable despite variations in load conditions. The inclusion of input undervoltage lockout (UVLO) prevents the converter from operating under unsafe conditions, which could lead to performance issues or damage. The dual-logic output enable control provides further flexibility in managing the power states of the converter.

Protection mechanisms against overcurrent and overtemperature are critical for maintaining the integrity of the converter and the overall system. These protections safeguard against potential faults that could arise from unexpected load changes or environmental factors.

Overall, the PTB78560x series is well-suited for distributed power architectures, particularly in complex digital systems where precise voltage regulation and power sequencing are essential. Its robust design and advanced features make it a reliable choice for engineers looking to implement efficient power management solutions in telecom and computing environments.The PTB78560x is a series of 30 W rated isolated DC/DC converters, designed to operate from a standard 24 V or 48 V telecom central office (CO) supply. Housed in a 12 package, each model has a wide-adjust output voltage that CAN be set to one of the common intermediate bus voltages of 3.

3 V, 5 V, or 12 V. The PTB78560 series incorporates Auto-Trac k, a feature that simplifies the power-up sequencing of multiple Power Modules that operate from the same intermediate bus. During a power-up cycle, modules with this feature have the capability of following a common ramp voltage applied to an input called Track.

The PTB78560 series is specifically designed to control the Track voltage of any number of nonisolated downstream modules powered from its output. This ensures that the outputs of the downstream modules all rise simultaneously during power up. The PTB78560B (3. 3 V) has an additional sequenced output, VO Seq, which also rises with the Track voltage. This allows the VO Seq output to power up simultaneously with the outputs from other Power Modules under the control of Auto-Track.

Whether used to facilitate power-up sequencing, or operated as a stand-alone module, the PTB78560 series includes many other features expected of high-performance DC/DC converter modules. Precise output voltage regulation is ensured with a differential remote sense. Operational features include an input undervoltage lockout (UVLO) and a dual-logic output enable control.

Overcurrent and overtemperature protection ensure survival against load faults. Typical applications include distributed power architectures in both telecom and computing environments, particularly complex digital systems requiring power sequencing of multiple power supply rails. 🔗 External reference