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HS01G Datasheet(PDF) 11 Page - Infineon Technologies AG

Part # HS01G
Description  Half-Bridge Resonant Controller
PDF  18 Pages
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Manufacturer  INFINEON [Infineon Technologies AG]
Direct Link  http://www.infineon.com
Logo INFINEON - Infineon Technologies AG

HS01G Datasheet(HTML) 11 Page - Infineon Technologies AG

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Half-Bridge Resonant Controller
ICE1HS01G
Version 2.0
11
24 August 2009
voltage. The charging time tcha and discharging time
tdisc can be respectively approximated as
[8]
[9]
In [8], Req is the equivalent resistance for parallelling of
RINS1 and RINS2.
[10]
In [9], Req2 is the equivalent resistance for parallelling of
RINS1, RINS2 and RQ3 (900ohm typically).
[11]
IC will repeat the charging and discharging process for
NOLP_R times. After that, IC will turn off the switches for
both charging and discharging. In addition, the current
source for hysteresis will be turned on and another
blanking time of TBL_VINS, the time between t2 and t3 as
shown in Fiugre 14, will be added so that VINS pin fully
recovers and represents the bus voltage information.
IC will start the soft start after the additional blanking
time in case VVINS is higher than the VVINSon.
Figure 13
Circuit connected to VINS pin
Figure 14
VINS voltage waveform during blanking
time after OLP and before IC restarts
tcha
VBUS
Req
RINS1
-------------
⋅


IINST Req
⋅
() V
INSH
–
+
VBUS
Req
RINS1
-------------
⋅


IINST Req
⋅
() V
INSL
–
+
---------------------------------------------------------------------------------------------





ln
–Req CINS
⋅⋅
=
tdisc
VBUS
Req2
RINS1
------------- VINSL
–
⋅
VBUS
Req2
RINS1
-------------
⋅
VINSH
–
----------------------------------------------------





ln
–Req2 CINS
⋅⋅
=
Req
1
1
RINS1
-------------
1
RINS2
-------------
+
----------------------------------
=
Req2
1
1
RINS1
-------------
1
RINS2
-------------
1
RQ3
---------
++
--------------------------------------------------
=
VINS
CV1
Ihys
1.25V
CV3
CV2
EnA
EnA
0.5V
4.5V
IINST
Vdd
R
S
Q
Q
CLK
Counter
TBL_VINS
20ms
AR_R
AR
Mains_OK
ICE1HS01G
Q3
Q1
Q2
Time
VINS_H
t1
t2
t3
VINS_L



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