UCD3138A64 datasheet(48/80 Pages) TI

Nome de Peças	UCD3138A64

Descrição Electrónicos	UCD3138x Highly-Integrated Digital Controller For Isolated Power

PDF	80 Pages

Scroll/Zoom	100%

Fabricante Electrônico	TI [Texas Instruments]

Página de início	http://www.ti.com

Logo

48 / 80 page

UCD3138128, UCD3138A64

SLUSBZ8A – JUNE 2014 – REVISED SEPTEMBER 2014

www.ti.com

Device Functional Modes (continued)

Event 2 and Event 4 are not relevant in Multi mode.

DPWMB can cross over the period boundary safely, and still have the proper pulse width, so full 100% pulse

width operation is possible. DPWMA cannot cross over the period boundary.

Since the rising edge on DPWM B is also fixed, Blanking B-Begin and Blanking B-End can be used for blanking

this rising edge.

And, of course, Cycle Adjust B is usable on DPWM B.

9.4.1.4 DPWM Resonant Mode

This mode provides a symmetrical waveform where DPWMA and DPWMB have the same pulse width. As the

switching frequency changes, the dead times between the pulses remain the same.

The equations for this mode are designed for a smooth transition from PWM mode to resonant mode, as

described in the LLC Example section. Here is a diagram of this mode:

Submit Documentation Feedback

Product Folder Links: UCD3138128 UCD3138A64

UCD3138A64 Folha de dados(PDF) 48 Page - Texas Instruments