LM5170PHPR

Overview

The LM5170PHPR is a multiphase bidirectional current controller manufactured by Texas Instruments, designed for high-efficiency power conversion applications. It supports Boost and Buck topologies with two independent outputs. The device operates within a switching frequency range of 50 kHz to 500 kHz and accommodates a maximum duty cycle of 99%. It handles output voltages from 100 mV to 100 V and supports up to 50 A output current. The unit functions in non-isolated configurations with an operating supply voltage between 6 V and 85 V. It is housed in a TQFP-48 package suitable for surface mount installation and operates reliably across temperatures from -40°C to +125°C.

Feature Summary

• Supports multiphase bidirectional current control for flexible power flow management
• Enables automatic topology transition between Buck and Boost modes
• Integrates phase interleaving capabilities to reduce input and output ripple currents

Applications

• Bidirectional DC-DC conversion systems
• Multiphase power distribution networks
• Energy storage interface controllers

Procurement Notes

Verify the specific suffix PHPR confirms the TQFP-48 package and Reel/Cut Tape packaging format as listed in official documentation. Confirm RoHS compliance status and moisture sensitivity level requirements prior to assembly. Ensure the ordering part number matches the exact temperature grade and pinout configuration required for the target design implementation.

Selection Notes

Select this component when designing systems requiring bidirectional energy transfer with multiple phases. Evaluate thermal performance based on the 50 A current capability and TQFP-48 thermal characteristics. Verify that the 6 V to 85 V operating range aligns with the system's supply voltage constraints and transient conditions.

Part Context

This device belongs to the LM5170 series of switching controllers from Texas Instruments. It is categorized under PMIC - Power Management ICs. The product serves as a specialized solution for complex power architectures requiring precise current control and bidirectional operation capabilities within industrial or automotive environments.

Replacement Considerations

LM5170PHPT is available as a Cut Tape variant of the same functional device.