Datasheet

40.0
60.0
80.0
100.0
120.0
140.0
5 10 15 20 25 30
Load Current (A)
Switching Frequency (kHz)
400Vdc
380Vdc
350Vdc
www.ti.com Performance Data and Typical Characteristic Curves
9.3 Switching Frequency Control
Figure 9. Switching Frequency Control in LLC Mode
9.4 Load Operation with LLC and PWM
Figure 10. LLC Resonant Mode Operation at Full Load Figure 11. PWM Mode Operation after F
SW
= 150 kHz
(Ch1 = V
GS
of Q7, Ch2 = current in resonant network, 2 (Ch1 = V
GS
of Q7, Ch2 = V
GS
of Q6, Ch3 = V
GS
of SR2,
A/div, Ch3 = V
DS
of Q7, Ch4 = V
O
ripple) Ch4 = V
GS
of SR3)
15
SLUU979A–August 2012–Revised July 2013 Digitally Controlled LLC Resonant Half-Bridge DC-DC Converter
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