Multi-rail TV power supply reference design, with flexible partitioning to maximize power savings
TIDA-050027
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Key Document
Description
The TIDA-050027 reference design is a power distribution solution for Television (TV) platforms. By providing a configuration that emulates common voltage rails and peripherals, this design can be used as a reference design across multiple TV power architectures including LCD and OLED TV. On the input an eFuse is used for short circuit protection, while the high efficiency buck converters provide the necessary power for the core rail, always-on rails, and peripheral rails. Furthermore, for certain peripherals low IQ lowdropout regulators (LDO) provide clean digital power rails. In addition to these power components load switches control the voltage with controlled slew rates to allow for power sequencing and power savings. Additionally integrated load switches provide self protection while reducing BOM count and solution size.
Features
- Fully-featured power tree for common TV rails allow for appropriate selection of load switches, buck converters, and LDOs in system design
- High efficiency buck converters with fast transient response and reduced BOM count for smaller solution size
- Integrated protection features improve reliability for longer system lifetime
- Switching OFF unused loads results in higher system efficiency and lower standby current
- Load switches offer smaller solution size and lower component count when compared to discrete FET solutions
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Schematic/Block Diagram
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Test Data
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TI Devices (12)
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| Sample & Buy |
Design Kits & Evaluation Modules |
| TLV62568 |
2.5V-5.5V input, 1A high efficiency step-down buck converter in SOT23 and SOT563 package |
Step-down (buck) regulators |
Sample & Buy |
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| TLV62569A |
2A High Efficiency Step-down Buck Converter with forced PWM in SOT Package |
Step-down (buck) regulators |
Sample & Buy |
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| TLV755P |
500-mA, high-PSRR, low-IQ, low-dropout voltage regulator with enable |
Power management |
Sample & Buy |
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| TLV759P |
1-A, low-IQ, high-accuracy, adjustable ultra-low-dropout voltage regulator with enable |
Power management |
Sample & Buy |
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| TLV809E |
Low-power voltage supervisor (reset IC) with active-low, push-pull output |
Power management |
Sample & Buy |
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| TPS22810 |
18-V, 3-A, 79-mΩ load switch with adj. rise time and adj. output discharge |
Power switches |
Sample & Buy |
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| TPS22919 |
5.5-V, 1.5-A, 90-mΩ load switch with adj. output discharge |
Power switches |
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| TPS22975 |
5.7-V, 6-A, 16-mΩ load switch with adj. rise time, optional output discharge, and thermal shutdown |
Power switches |
Sample & Buy |
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| TPS25221 |
0.28A - 2.5A, adjustable ILIMIT, 2.5-5.5V, active-high enable power switch, 70 mOhm |
Power management |
Sample & Buy |
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| TPS2595 |
2.7-V to 18-V, 34mΩ, 0.5-4A eFuse with over voltage protection in small WSON package |
Power switches |
Sample & Buy |
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| TPS564201 |
4.5 V to 17 V input, 4 A output, synchronous step-down converter in Eco-mode |
Step-down (buck) regulators |
Sample & Buy |
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| TPS566250 |
4.5V to 17V Input, 6A Synchronous Step-Down Converter With VID Control |
Step-down (buck) regulators |
Sample & Buy |
Not Available |
CAD/CAE symbols
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Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
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Technical documentation
See the Important Notice and Disclaimer covering reference designs and other TI resources.
User guides (1)
| Title | Type | Size (KB) | Date |
| | PDF | 7246 |
11 Nov 2019
|
Design files (6)
| | ZIP | 1199 |
12 Nov 2019
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| | PDF | 385 |
12 Nov 2019
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| | PDF | 1236 |
12 Nov 2019
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| | ZIP | 974 |
12 Nov 2019
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| | PDF | 60 |
12 Nov 2019
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| | PDF | 222 |
12 Nov 2019
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