Datasheet

IN
LEN
HG
LG
400 ns/DIV
IN
HG-SW
LG
40 ns/DIV
IN
HG-SW
LG
40 ns/DIV
IN
LG
HG-SW
0.9V
0.9V
t
2
t
4
t
3
t
1
t
5
t
7
t
8
t
6
LM27222
www.ti.com SNVS306B –SEPTEMBER 2004–REVISED MARCH 2013
Timing Diagram
Typical Waveforms
Figure 2. PWM Low-to-High Transition at IN Input Figure 3. PWM High-to-Low Transition at IN Input
Figure 4. LEN Operation
The typical waveforms are from a circuit similar to Typical Application with:
Q1: 2 x Si7390DP
Q2: 2 x Si7356DP
L1: 0.4 µH
V
IN
: 12V
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