Texas Instruments LM5070MTC-50

Integrated Power Over Ethernet PD Interface and PWM Controller 16-TSSOP -40 to 125

IC, POE INTERFACE PWM, POWERWISE; Input Voltage:48V; Output Current:100mA; Supply Current:1.5mA; Digital IC Case Style:TSSOP; No. of Pins:16; Duty Cycle (%):50%; UVLO:6.25V; Frequency:580kHz; Operating Temperature Range:-40°C to +125°C; SVHC:No SVHC (19-Dec-2011); Base Number:5070; Continuous Drain Current Id:1mA; Controller Type:PWM; IC Generic Number:5070; Input Voltage Max:75V; Input Voltage Min:1.85V; Logic Function Number:5070; On Resistance Rds(on):1ohm; Operating Frequency:200Hz; Operating Temperature Max:125°C; Operating Temperature Min:-40°C; Output Type:Voltage; Output Voltage Max:3.3V; Package / Case:TSSOP; Power Supply IC Type:PoE and PWM; Startup Current:10µA; Supply Voltage Max:15V; Supply Voltage Min:8.1V; Termination Type:SMD

The LM5070 power interface port and pulse width modulation (PWM) controller provides a complete integrated solution for Powered Devices (PD) that connect into Power over Ethernet (PoE) systems. The LM5070 integrates an 80V, 400mA line connection switch and associated control for a fully IEEE 802.3af compliant interface with a full featured current mode pulse width modulator dc-dc converter. All power sequencing requirements between the controller interface and switch mode power supply (SMPS) are integrated into the IC. Two options are available providing either an 80% maximum duty cycle limit with slope compensation (on the -80 suffix) device or a 50% maximum duty cycle limit and no slope compensation on the (-50 suffix) device.