The bq297xy device provides protection for Li-ion/Li-polymer batteries and monitors across external power FETs to provide protection against high charge or discharge currents. Additionally, there is monitoring and protection against overcharging and depleted batteries. These features are achieved with very low current consumption when operating in normal mode.
Stackable monitors and protectors used in large lithium-ion batteries to provide monitoring, balancing and communication functions. Each bq76PL455A-Q1 EVM can manage 8 to 16 cells (12V minimum) in Li-ion battery applications. Up to 16 bq76PL455A-Q1 EVM modules can be stacked. The system provides fast cell balancing, diagnostic functions and modules for controller communication. An independent protection circuit is also integrated.
The MAXREFDES1269 demonstrates how to build a DC-DC buck converter using the MAX20098 step-down controller for 5V DC output applications from a 6V to 36V input. This reference design delivers up to 20A at 5V output. The design uses a six-layer board. Table above shows an overview of the design specification.
The main purpose of TIDA-00600 is to provide a cost-optimized small power management solution for ZigBee systems that require both rechargeable battery and DC connector power. The TIDA-00600 design provides power management departments with test data, design guidance, and light drawing files. This reference design features the LP5907, an ultra-small LDO with high PSRR and low noise, and the BQ24230, a stand-alone battery charger.
This single-layer reference design for pedestal fans and other similar appliances features 2-inch diameter pads and an integrated controller that reduces component count. In addition, sensorless control eliminates the need for Hall sensors and provides multiple protection functions such as overcurrent protection, undervoltage lockout, and overheating protection, each of which improves the robustness of the design. This reference design is suitable for 8V-24V input voltage and is capable of delivering 3A (peak)/2A (rms) phase current.
This application note presents a reference design for a signal-lamp linear LED driver that consists of six strings of 4 LEDs per string and delivers 350mA per string with a common cathode configuration. Common cathode arrangements require that the current-sense resistors be placed on the high (anode) side, which forces the LED drivers to use a level shifter.
The Multi Standard 45W Mobile Charger enables the design of power supplies featuring extreme low standby power with the output voltage in full regulation, very high efficiency and high reliability. The NXP chipset used is targeting mobile and notebook power supplies with power requirements up to 100W. Supplies can be designed easily and with a minimum number of external components.
This reference design helps designers develop a cost optimized ultrasonic water-metering subsystem using an integrated, ultrasonic sensing solution (USS) module, which provides superior metrology performance with low-power consumption and maximum integration. The design is based on the 64KB MSP430FR6043 microcontroller (MCU), with integrated high-speed, ADC-based, signal acquisition and an integrated low energy accelerator (LEA) to optimize digital signal processing.
MAXREFDES116# is an efficient, active clamp topology, isolated power supply design with 24V input, and a 5V output at 40W of power (8A). The design features the MAX17599, an active clamp, current-mode PWM controller optimized for industrial supplies. This entire circuit fits on a 20mm x 70mm board.
The FRDM-HB2001FEVM evaluation kit allows users to practice using all features of the MC33HB2001 H-bridge device with FRDM-KL25z and SPIGen software.
This design is a complete system for controlling a single extruder based 3-axis 3D printer. The system is managed by the MSP430F5529 LaunchPad and utilizes the DRV8846 for precision stepper motor control. The CSD18534Q5A is used as a low-side switch for warm bed heaters, extruder heaters, and cooling fans. The DRV5033 Hall sensor acts as a non-contact limit switch.
3-axis digital accelerometer sensor kit based on IIS3DWB
Power over Ethernet (PoE) is a technology that allows network cables to deliver power to a powered device (PD) through power-sourcing equipment (PSE) or midspan, and has many advantages over traditional methods of delivering power.
This document details the MAXREFDES138# subsystem reference design, a 36V to 57V input, 12V output, no-opto flyback isolated power supply capable of 12W. Design files and test results are included. Hardware is available for purchase.
This is a reference design for a SEPIC/linear LED-display backlight driver for eight parallel strings of 8 WLEDs (white LEDs) at 70mA/string. The dimming ratio is 4000:1. The input voltage is 16V to 36V with 50V transients. The design combines a SEPIC switching power supply with adaptive feedback and linear current sinks for high dimming ratios. The MAX16809 16-channel LED driver is featured.
Flyback converters are the preferred topology in isolated converters for medium and low power range applications due to their simplicity and economic considerations. As flyback converters are isolated converters, the output voltage and the current are traditionally regulated by utilizing the secondary side regulation (SSR) composed of an optocoupler and a secondary-error amplifier.
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