MAXREFDES1022: 5V/2A, synchronous, no optocoupler, isolated, flyback DC-DC converter

Due to its simplicity and low cost, the flyback converter is the preferred choice for low-to-medium isolated DC-DC power-conversion applications. However, the use of an optocoupler or an auxiliary winding on the flyback transformer for voltage feedback across the isolation barrier increases the number of components and design complexity. The MAX17690 eliminates the need for an optocoupler or auxiliary transformer winding and achieves ±5% output voltage regulation over line, load, and temperature variations.

MAXREFDES39#: Power Amplifier Biasing with MAX11300 PIXI

Maxim's Power Amplifier Biasing (MAXREFDES39#) features a PA Bias circuit with the flexible Programmable Mixed Signal I/O (PIXI™) product, the MAX11300. The 2-stage amplifier design biases a 15W, LDMOS PA implemented with unprecedented simplicity, and is capable of biasing many existing PAs. Design files are available and boards are available for purchase.

TEA1892TS GreenChip SR controller has been added onboard for flyback

TEA1892TS GreenChip SR Controller add on board for Flyback

Schematic PCB

KITFS85FRDMEVM: FS84/FS85 12V Automotive Safety SBC Evaluation Board

KITFS85FRDMEVM is a development board for the 12V automotive market. It is designed to provide the best performance and reference layout.

Schematic PCB

MAXREFDES1227: Small-footprint 24W, 12V DC-DC flyback converter using the MAX17596

The MAXREFDES1227 is a miniature 12V output isolated power supply that can deliver up to 2A load current. The design employs the MAX17596 peak-current-mode controller in discontinuous-conduction mode (DCM) flyback topology running at 125kHz. The input voltage range of MAX17596 is 4.5V to 36V; however, an extra bias winding from the transformer is used to power the controller. This allows an input operating voltage of up to 60V for this design.

DI-140 - 10W adapter for portable audio players with latching overvoltage and thermal shutdown protection

10 W Adapter for Portable Audio Players with Latching Overvoltage and Over-Temperature Shutdown Protection

Schematic PCB

20 WT Lamp Direct AC LED Driver with Analog Dimming

RDR-648 - 150 W Power Factor Corrected LLC Power Supply Based on HiperPFS-4 and HiperLCS

Schematic PCB

Flexible system fault protection circuit design

When it is necessary to plug in a board into a system that is currently powered, it is critical to control the inrush current to prevent damage/system fault conditions. This application provides a simple circuit to achieve this function as well as an easy method for resetting the system and monitoring against temperature issues.

Full-bridge AC-DC power supply basic simulation circuit

Offline LED Driver Reference Design

This application note presents a reference design for a nonisolated LED driver intended to operate directly from a 400V _DC input. The design drives a string of 27 WLEDs (white LEDs) or, optionally, 6 amber LEDs at 400mA. The topology is a discontinuous flyback with a transformer. The MAX16801 HB (high brightness) LED controller is featured.

45 W USB-PD Ethernet Power Flyback Converter

TEA2016 USB-I ² C programming interface

Schematic PCB

A_39_V10 Design based on IPS2 motor commutation sensor

Schematic PCB

ASL5015EVBMST: MLC ASL5015SHN Evaluation/Development Board

The ASL5015EVBMST is the main evaluation board for NXP's Matrix LED Controller (MLC) ASL5015SHN, which enables evaluation of external lighting systems.

A_38_V10 Design based on IPS2 motor commutation sensor

Schematic PCB

MAXREFDES1214: Portable 1.5A USB charger with Micro-USB input and USB Standard-A output

The MAXREFDES1214 is a portable USB charger that uses a lithium-ion (Li+) battery to charge a USB device from a USB Standard-A connector.

MAXREFDES1047: wide input range, 5V/3A output synchronous rectification, step-down DC-DC converter, two-layer circuit board design to reduce costs

The MAX17504 high-efficiency, high-voltage, synchronously rectified step-down converter with dual integrated MOSFETs operates over a 4.5V to 60V input. The converter can deliver up to 3.5A and generates output voltage from 0.9V to 90% VIN. Built -in compensation across the output voltage range eliminates the need for external components. The feedback (FB) regulation is accurate to within ±1.1% over -40°C to +125°C. The devices are available in a compact (5mm x 5mm ) TQFN lead (Pb)- free package with an exposed pad. Simulation models are available. The MAX17504 features a peak-current-mode control architecture with a MODE feature that can be used to operate the device in pulse-width modulation (PWM) , pulse-frequency modulation (PFM), or discontinuous mode (DCM) control schemes.

Schematic PCB

Isolated shunt/voltage measurement reference design for automotive battery pack monitoring

This TI verified design provides principles, component selection, TINA-TI simulation, verification and measurement performance, Altium schematic, PCB layout for automotive battery pack monitoring applications. This design uses the automotive AEC-Q100 qualified 12-bit, 4-channel, 1Msps SAR ADC ADS7950-Q1 and isolated system hardware. This isolated input design with four-wire shunt resistors is ideal for such applications using high and low voltage automotive battery packs. It can be used to monitor battery pack current (from -5A to +5A) and extremely high voltages (up to 750V). TINA simulations on input and reference drivers validate design solutions and component selections, while measured results prove the performance of precision designs.

Schematic PCB

MAXREFDES1013: 12W offline flyback converter

The MAX17595 is a peak-current-mode controller for designing wide input-voltage flyback regulators. The MAX17595 offers optimized input thresholds for universal input AC-DC converters and telecom DC-DC (36V to 72V input range) power supplies.