TPS23770 Datasheet PDF - TI

●DESCRIPTION

●The TPS23750 integrates the functionality of the TPS2375 with a primary-side dc/dc PWM controller.

●The designer can create a front-end solution for PoE-PD applications with minimum external components. The TPS23770 is identical to the TPS23750 with the exception of the undervoltage lockout turn-on voltage, which is compatible with legacy systems.

●FEATURES

●• Complete 802.3af PoE Interface

●– Features derived from the TPS2375

●– 100 V, 0.6 Ω Internal Pass MOSFET

●– Standard and Legacy UVLO Choices

●– Fixed 140 mA Inrush Limit

●• Primary Side DC/DC Converter Control

●– Minimum External Component Count

●– Current Mode Control

●– Isolated and Non-Isolated Topologies

●– Programmable Operating Frequency

●– Current Sense Leading-edge Blanking

●– 50% Duty Cycle Limiting

●– Voltage Output Error Amplifier

●• Internal PoE and Converter Sequencing

●• Industry-Standard 20 Lead Package

●• Industrial Temperature Range: –40°C to 85°C

●APPLICATIONS

●• All PoE PD Devices Including:

●– Wireless Access Points

●– VoIP Phones

●– Security Cameras