Texas Instruments TPS62821DLCR | Demoboard TIDA-00300 PSE2

Description

This reference design provides a simple means through which to isolate I2C or SPI type communication lines. This is often required in Grid Infrastructure applications such as, protertion relays and circuit breakers, where high voltages are involved. This reference design provides the complete solution in which, both power isolation and signal isolation is handled

Features

• DCS-Control™ topology
• 26-mΩ/25-mΩ internal power switches (TPS62823)
• Up to 3-A output current (TPS62823)
• Very low quiescent current of 4 µA
• Switching frequency of typically 2.2 MHz
• 1% feedback voltage accuracy (full temp. range)
• Enable (EN) and power good (PG)
• Adjustable output voltage from 0.6 V to 4 V
• 100% duty-cycle mode
• Internal soft-start circuitry
• Seamless power save mode transition
• Undervoltage lockout
• Active output discharge
• Cycle-by-cycle current limit
• HICCUP short-circuit protection
• Over temperature protection
• CISPR11 class B compliant

Typical applications

• POL supply in portable/battery powered devices
• Factory and building automation
• Mobile computing, networking cards / Solid state drive / Data terminal, point of sale / Servers, projectors, printers

More information

• Datasheet
• IC product information