This reference design is ideal for running IR LEDs (up to 3A) in high current pulse mode in automotive ADAS systems. The design supports continuous and pulsed operation even during load dump and hot start events. Other features include analog dimming and CISPR-25 Class 3 EMI filtering.
TI reference design TIDA-00948 demonstrates a 15mmx20mm, 94% efficient low electromagnetic interference (EMI) DC/DC module using the TPS54202, replacing low dropout regulators (LDOs) in most appliance applications. High efficiency eliminates the need for a heat sink, resulting in a smaller, lower cost solution. Higher current capacity enables the addition of more functionality (WiFi, sensors, etc.). High efficiency and low current consumption help achieve stringent energy efficiency ratings.
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.
15W 5V Offline Flyback Converter Using the MAX17595
The KIT33883FRDMEVM evaluation kit allows users to practice using all features of the MC33883 device with the FRDM-KL25Z
I3G4250D adapter board for standard DIL24 socket
Multi-voltage, high-efficiency, 25 W universal power module with robust performance from 6 V to 14 V inputs
LIS2DW12 adapter board for standard DIL24 socket
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. It contains a built-in gate driver for an external n-channel MOSFET. The MAX17595 houses an internal error amplifier with 1% accurate reference, eliminating the need for an external reference. The switching frequency is programmable from 100kHz to 1MHz with an accuracy of 8%, allowing optimization of magnetic and filter components, resulting in compact and cost-effective power conversion.
ZTE 2400 48v50a circuit schematic diagram, available for maintenance
This reference design shows how to increase the output current of the MAX15006/MAX15007 linear regulators to meet the power-supply requirements for an automotive air bag.