Texas Instruments' TPS6292xx series of DC/DC converters are specifically tailored for applications in building automation where efficiency and flexibility are crucial. These devices are characterized by their compact size, high efficiency, and versatility in voltage selection, catering to various system requirements.
With a wide input voltage range of 3 V to 17 V, the TPS6292xx converters can support systems powered by 12 V, 5 V, or 3.3 V supply rails, as well as single-cell or multi-cell Li-Ion batteries. This flexibility in voltage compatibility makes them suitable for a diverse range of applications within the building automation sector.
One of the key features of the TPS6292xx series is its ability to operate at either 2.5 MHz or 1 MHz in different modes, including forced PWM and variable frequency (auto PFM) mode. The auto PFM mode enables the devices to automatically transition to power-save mode at light loads, ensuring high efficiency even under minimal power consumption scenarios.
Moreover, Texas Instruments has incorporated automatic efficiency enhancement (AEE) mode in these converters, which dynamically adjusts the switching frequency based on input and output voltages to maintain high conversion efficiency across the operating range. This feature eliminates the need for different inductors and simplifies the design process.
The MODE/S-CONF input pin allows users to select between various configurations, including external and internal feedback dividers, as well as enabling or disabling output voltage discharge capability. By utilizing the internal feedback configuration, designers can choose from 18 output voltage options by simply adjusting a resistor between the FB/VSET pin and GND.
In conclusion, the Texas Instruments TPS6292xx series offers a comprehensive solution for building automation applications, combining efficiency, flexibility, and ease of use in a compact and versatile package. These DC/DC converters are designed to meet the evolving needs of modern systems that demand high performance and energy efficiency.
High-efficiency DCS-Control™ topology
Low quiescent current: 4 µA (typ.)
Output current: up to 1 A
RDSON: 250 mΩ high-side and 85 mΩ low-side
Output voltage accuracy: ±1%
Duty-cycle mode: 100%
Precise enable input
Power-Good output
Pin-to-pin compatible
Package: 0.5 mm pitch, 8-pin SOT-583
No external bootstrap capacitor is required
Output overcurrent and overtemperature protection
Configurable output voltage options:
VFB external divider: 0.6 V to 5.5 V
VSET internal divider: 18 options between 0.4 V and 5.5 V
Flexibility through MODE/S-CONF pin:
Switching frequency: 2.5 MHz or 1.0 MHz
Forced PWM or auto (PFM) power-save mode with a dynamic mode option
Output discharge on/off
Appliances
Building automation
Factory automation and controls
Grid infrastructure
Retail automation and payments
Wireless infrastructure
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