Infineon ICE2HS01G User Manual

Application Note 12 2011-07-06
Solve the equation and find
Then
eq
R is 5kΩ according to Figure 3. According to the definition of over-current protection,
ocpeq
RRR
FMIN
//= ,
Then
ocp
R can be found as 5.6kΩ.
2.3.4 Dead time
The dead time selection should ensure ZVS of two primary-side MOSFET IPA60R199CP at maximum
switching frequency, where the magnetizing current to charge and discharge
ds
C is the minimum. The
magnetizing current at the end of each switching cycle can be calculated as:
[18]
The required time to charge and discharge the
ds
C is:
[19]
Then
TD
R is around 270kΩ according to Figure 4.
Figure 4
DEAD
T Vs
TD
R
kHzf
ocp
250=
A
fL
NVV
I
ocpp
edsO
mag
288.0
10*250*10*690*4
5.16*)1.012(
4
*)(
36
min
=
+
=
+
=
−
ns
I
VC
I
VC
T
mag
innomds
mag
innomds
DEAD
440
288.0
400*10*160*2
22
12
minmin
====
−

Infineon ICE2HS01G Specifications

General

Brand	Infineon
Model	ICE2HS01G
Category	Controller
Language	English