Texas Instruments LM5180 | Demoboard TIDA-01535

Description

This single-channel, power-isolated, analog output module reference design delivers current and voltage outputs using the highly-integrated DAC8771 digital-to-analog converter (DAC). The high integration of the DAC8771 coupled with the LM25180 primary-side regulated flyback converter lead to a compact, isolated design with 52-mm × 40-mm board dimensions and a maximum component height of 4 mm. Additionally, the design features external circuitry to provide transient protection for electromagnetic interference (EMI) and electromagnetic compatibility (EMC).

Features

• Designed for reliable and rugged applications– Wide input voltage range of 4.5 V to 65 V– Robust solution with only one component crossing the isolation barrier– ±1% Total output regulation accuracy– Optional VOUT temperature compensation– 6-ms Internal or programmable soft start– Input UVLO and thermal shutdown protection– Hiccup-mode overcurrent fault protection– –40°C to +150°C Junction temperature range
• Integration reduces solution size and cost– Integrated 100-V, 0.35-Ω power MOSFET– No opto-coupler or transformer auxiliary winding required for VOUT regulation– Internal loop compensation– Low EMI operation to meet CISPR 32
• High efficiency PSR flyback operation– Quasi-resonant switching in boundary conduction mode (BCM) at heavy load– Low input quiescent current– External bias option for improved efficiency– Minimum load less than 0.5% of full load

Typical applications

• Isolated power rails for PLC systems
• Motor drive: IGBT gate drive supplies / Isolated field transmitters and field actuators
• Building automation HVAC systems

More information

• Datasheet
• IC product information