L6598 datasheet(6/16 Pages) STMICROELECTRONICS

部件名	L6598

功能描述	HIGH VOLTAGE RESONANT CONTROLLER

PDF	16 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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6 / 16 page

L6598

6/16

Figure 2. EN1 Timing Diagrams

Figure 3. Oscillator/Output Timing Diagram

High/Low Side driving section

An High and Low Side driving Section provide the proper driving to the external Power MOS or IGBT. An high

sink/source driving current (450/250 mA typ) ensure fast switching times also when size4 Power MOS are used.

The internal logic ensures a minimum dead time to avoid cross-conduction of the power devices.

Timing and Oscillator Section

The L6598 is provided of a soft start function. It consists in a period of time, TSS, in which the switching frequen-

cy shifts from fstart to fmin. This feature is explained in the following description (ref. fig.4 and fig.5).

EN1

EN2

LVG

HVG

D98IN890

LVG

HVG

C f

D98IN897

L6598 数据表(PDF) 6 Page - STMicroelectronics