CC1120EM 169MHz Reference Design

This "RF Layout Reference Design" demonstrates excellent decoupling and layout techniques for low power RF devices in the 169 MHz band.

Schematic PCB

15-Cell Li-Ion Battery Controller Analog Front-End Reference Design

The TIDA00255 reference design utilizes the bq76940 analog front end (AFE) IC. It can measure battery voltage, mold temperature or external thermistor voltage using a 14-bit ADC. Current is measured individually by a separate 16-bit coulomb counter. The design turns off the low-side power FET to stop discharging or charging based on selected hardware limits. A microcontroller not included in this design will be part of the battery controller to communicate with the AFE to set protection thresholds, enable the power FETs, provide fault recovery, and shut down the FETs during over/under temperature conditions. Battery controller designs may include additional features that are not part of this reference design, such as secondary overvoltage protection, measurement, and isolated communications to inform the system of battery status.

Schematic PCB

Professional MEMS Tools: ST MEMS Adapter Board based on STM32F401VE and compatible with all ST MEMS adapters

Professional MEMS Tools: ST MEMS Adapter Board based on STM32F401VE and compatible with all ST MEMS adapters

Schematic PCB

MAXREFDES32#: Dual Channel Analog Input/Analog Output with Flyback DC Supply

Maxim's MAXREFDES36# reference design is an IO-Link, low-power, 16-channel digital input hub compliant with IEC 61131-9. It contains two octal digital input serializers, an IO-Link transceiver and efficient step-down converter. The entire design fits in a standard DIN rail printed circuit board (PCB) holder.

Schematic PCB

FRDMFS6523CAEVM: FS6523 System Basis Chip with KL25Z

The FRDMFS6523CAEVM evaluation module demonstrates the capabilities of the MC33FS6523, supporting CANFD & FS1B, Vcore SMPS regulators up to 1.5A.

Schematic PCB

36W universal input dual output auxiliary power supply reference design for PSU with greater than 90% efficiency

TIDA-00709 is a 36W dual-output auxiliary power supply with universal DC input, targeting server and telecom power supplies. This reference design uses the UCC28740 constant voltage/constant current (CV-CC) flyback controller to implement a quasi-resonant (QR) flyback converter with optocoupled feedback for voltage and primary-side regulation for current ( PSR). To improve efficiency, the TIDA-00709 uses a synchronous rectifier with a synchronous controller UCC24636 and a low RDS(on) MOSFET to achieve a 12V_ISO/2.75A main output. This design is small and economical and has almost all necessary built-in protection mechanisms, such as protection against output overvoltage and short circuits. Additionally, the design features built-in electronic fuses for fault isolation on the 12V main output voltage rail without affecting any other outputs.

Schematic PCB

CN0130

Integrated device power supply (DPS) for automatic test equipment with output voltage range 0 V to 25 V

Schematic PCB

RDR-866 - 2.5W non-isolated power supply using LinkSwitch-TNZ to generate AC zero-crossing signals losslessly

2.5 W Non-Isolated Power Supply with Lossless Generation of AC Zero-Crossing Signal using LinkSwitch-TNZ

Schematic PCB

High efficiency and high power density 1kW resonant converter reference design with TI HV GaN FETs

This reference design is a high efficiency, high power density and light weight resonant converter reference design. It converts a 390V input to a 48V/1kW output. The PMP20637 power stage has over 140W/in^3 power density. The whole board weight is less than 210g. With fixed 950kHz switching frequency in steady state, 97.6% peak efficiency is achieved.  

Schematic PCB

1 Degree Dial Reference Design Using LDC1314 Inductor-to-Digital Converter

The unique inductive sensing capabilities of the LDC1314 are used to implement a contactless rotational position sensing solution accurate to 1 degree. It uses standard PCB technology and simply manufactured components to achieve a low-cost solution.

Schematic PCB

KIT34717EPEVBE: Supports MC34717EP dual switch mode power supply - dual synchronized, step-down switching regulator

This evaluation kit supports the fully integrated MC34717EP Dual Switch-Mode Power Supply—a dual-synchronous, buck-switching regulator.

Schematic PCB

Vacuum Tube Fluorescent Display (VFD) Reference Design in Automotive

This article describes a vacuum fluorescent display (VFD) and some ideal applications for the technology. The reference design then shows how to use a MAX15005 power-supply controller in a flyback topology to obtain multiple output voltages for a vacuum fluorescent display.

Refrigerator Damper and Fan Motor Control Solutions

Refrigerators often use dampers to control airflow and fans to provide air circulation. Discrete solutions have been used for years, but this TI design uses an integrated motor driver to provide easy control, high performance and complete protection. The DRV8848 drives the stepper motor damper, while the DRV10983 drives the BLDC fan with quiet 180° commutation. The BLDC even has closed-loop speed control when using the MSP430G2553 and the DRV8812 for PWM-based power supplies. The entire solution uses a single layer PCB. BLDC and stepper control example code is included in the MCU firmware. Overcurrent, overtemperature and undervoltage protection mechanisms are integrated in the DRV device.

Schematic PCB

36V, 32A power stage for BLDC motors with cycle-by-cycle stall current limiter

This reference design is a power stage for brushless motors in battery-powered garden tools and power tools rated up to 1 kW, powered by a 10-cell lithium-ion battery with a voltage range of 36 to 42 V. This design uses 60V N-channel NexFET(TM) with ultra-low drain-to-source resistance (RDS_ON) of 1.8 mΩ in a SON5x6 SMD package, resulting in a small 57 × 59 mm PCB footprint. This design uses a three-phase gate driver to drive the three-phase MOSFET bridge, which can operate from 6V to 60V and supports programmable gate current with a maximum setting of 2.3A sink/1.7A source. The C2000™ Piccolo™ LaunchPad™ LAUNCHXL-F28027 is used with this power stage and implements 120-degree trapezoidal control of BLDC motors via Hall sensors in software. The gate driver's cycle-by-cycle current limiting feature limits the maximum current allowed in this power stage to a safe level, thereby protecting the board from overcurrent issues caused during motor shutdown.

Schematic PCB

CN0325

PLC/DCS universal analog input using 4-pin or 6-pin terminal strip

Schematic PCB

USB Type-C™ and Power Delivery MicroDock Reference Design for Video and Charging

The USB Type-C™ and Power Delivery (PD) MicroDock Evaluation Module (EVM) provides a complete USB Type-C dock reference solution including audio, USB data, power delivery and video. The EVM has a small 2-inch × 4-inch form factor and supports both sourcing and sinking power capabilities through the USB Type-C PD host port. Video output capabilities include DisplayPort and HDMI.

Schematic PCB

Linux ^® POS Card Reader

MOSFET parallel use (TK62N60X) application circuit

Dual Output LM5161-Q1 Fly-Buck™ Reference Design with Ultra-Small Coupled Inductors

The PMP15007 uses the LM5161-Q1 in Fly-Buck topology with both primary and secondary output voltages set to 5V nominal. This circuit can accommodate a voltage input range of 36V to 72V, making it ideal for a 48V nominal input voltage rail. The primary side is set to 5.32V nominal and the secondary isolation side is 5V with feedback resistors and is based on Coilcraft LPD8035V series coupled inductors set to a 1:1 turns ratio. The maximum operating current is set to 225mA on both the primary and secondary voltage rails. The switching frequency is set to 315kHz nominal.

Schematic PCB

Single-ended input to differential output conversion circuit reference design

This TI Precision Verified Design provides the principles, component selection, simulation, PCB design and measurement details for a single-ended input of a specific differential output circuit that converts a single-ended input from +0.1V to +2.4V ±2.3V differential output on a single +2.7V supply. The output range is specifically limited to maximize its linearity. This circuit consists of 2 amplifiers. An amplifier acts as a buffer, creating the voltage Vout+. The second amplifier inverts the input and increases the reference voltage to produce Vout-. Both Vout+ and Vout- range from 0.1V to 2.4V. The voltage difference Vdiff is the difference between Vout+ and Vout-. This will give a differential output voltage range of +2.3V.

Schematic PCB