Infineon ICE1HS01G-1 Half-bridge resonant controller Datasheet

Da ta s h e e t, V e rs i on 2 .0 , 0 4 Ju l y 2 0 1 1
Po wer Ma na ge me nt & Su p ply
N e v e r
s t o p
t h i n k i n g .
ICE1HS01G-1
Revision History:
04 July 2011
Previous Version:
Page
Subjects (major changes since last revision)
For questions on technology, delivery and prices please contact the Infineon Technologies Offices in Germany or
the Infineon Technologies Companies and Representatives worldwide: see our webpage at http://
www.infineon.com
CoolMOS™, CoolSET™ are trademarks of Infineon Technologies AG.
Edition 04 July 2011
Published by
Infineon Technologies AG,
81726 Munich, Germany,
© 2011 Infineon Technologies AG.
All Rights Reserved.
Legal disclaimer
The information given in this document shall in no event be regarded as a guarantee of conditions or
characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any
information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties
and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights
of any third party.
Information
For further information on technology, delivery terms and conditions and prices, please contact your nearest
Infineon Technologies Office (www.infineon.com).
Warnings
Due to technical requirements, components may contain dangerous substances. For information on the types in
question, please contact your nearest Infineon Technologies Office.
Infineon Technologies Components may be used in life-support devices or systems only with the express written
approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure
of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support
devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain
and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may
be endangered.
ICE1HS01G-1
Half-Bridge Resonant Controller
Product Highlights
•
•
•
•
•
Minimum number of external components
High accuracy oscillator
Two-level over current protection
Over load/open loop protection
Mains undervoltage protection with adjustable
hysteresis
• Adjustable blanking time for over load protection
and restart
Applications
Features
•
•
•
•
•
•
•
•
•
•
PG-DSO-8
DSO8 package
•
Maximum 600kHz switching frequency
•
Adjustable minimum switching frequency with high •
accuracy
50% duty cycle
Mains input under voltage protection with adjustable
hysteresis
Two levels of overcurrent protection: frequency shift
and latch off
Open-loop/over load protection with extended
blanking time
Built-in digital and nonlinear softstart
Adjustable restart time during fault protection period
High-accuracy oscillator
LCD/PDP TV
AC-DC adapter
Audio SMPS
Typical Application Circuit
WSH
Q1
Cbus
VINDC
Auxiliary
Supply
Lf
DO1
Cf
CO
VO
WP
Driver
Module
WSL
DO2
Q2
RINS1
CINS
GND
VCC
HG
CS
LG
RB1
CCS1
CCS2
VINS
ICE1HS01/G
RCS1
CS
RINS2
FMIN
DCS2
CC2
OPTO
RFMIN
CC1
TL431
CFB
Type
ICE1HS01G-1
Version 2.0
ROS1
RC1
DCS1
RCS2
FB
RB2
ROS2
Marking
Package
1H01-1
PG-DSO-8
3
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
Table of Contents
Page
1
Pin Configuration and Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.1
Pin configuration with PG-DSO-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.2
Pin Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2
Representative Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
3
3.1
3.1.1
3.1.2
3.1.3
3.1.4
3.1.5
3.2
3.3
3.4
3.5
3.6
3.7
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Oscillator and Pulse Frequency Modulation . . . . . . . . . . . . . . . . . . . . . . . . .7
Minimum charge current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Feedback regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Current sense current ICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Soft start current ISS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Charge current Ichg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
IC power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Soft start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Current sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Over current protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Mains Input Voltage Sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Over load protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
4
4.1
4.2
4.3
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.3.6
4.3.7
4.3.8
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Supply Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Oscillator Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Input voltage sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Current sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Soft start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Over load/Open loop protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Gate driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
5
Outline Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
6
Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Version 2.0
4
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
1
1.1
Pin Configuration and Functionality
Pin Configuration and
Functionality
switching frequency and the switching frequency
during soft start are also related to the current flowing
out of FMIN pin.
Pin configuration with PG-DSO-8
CS (current sense)
The current sense signal is fed to this pin. Inside the IC,
two comparators are provided. If the voltage on CS pin
is higher than the first threshold, IC will increase the
switching frequency to limit the maximum output power
of the converter. If the voltage on this pin exceeds the
second threshold, IC will be latched off immediately.
Pin
Symbol
Function
1
FMIN
Minimum switching frequency
2
CS
Current sense
3
FB
Feedback voltage
4
VINS
Input voltage sense
5
GND
IC ground
6
LG
Low side gate drive
7
HG
High side gate drive
8
VCC
IC power supply
FMIN
1
8
FB (feedback)
This pin is connected to the collector of the optocoupler. Internally, during normal operation, this pin is
connected to reference voltage source with a pull-up
resistor (RFB). The IC uses the voltage on this pin to
adjust the switching frequency within the range of
maximum and minimum frequency set by FMIN pin. If
FB voltage is higher than VFBH for a certain fixed
blanking time, an extended timer will be started. If over
load/open loop protection exists longer than the
extended blanking time, IC will enter auto-restart mode.
An off timer starts from the instant IC stops switching till
IC starts another soft start. This off time is determined
by the resistors and capacitor connected to VINS pin.
VCC
CS
2
7
HG
FB
3
6
LG
VINS
4
5
GND
VINS (mains input voltage sense)
The mains input voltage is fed to this pin via a resistive
voltage divider. If the voltage on VINS pin is higher than
the threshold VINSON, IC will start to operate with
softstart when VCC increases beyond turn on
threshold. During operation, if the voltage on this pin
falls below the threshold VINSON, IC will stop switching
until the voltage on this pin increases again.
When IC goes into over load protection mode, IC will
stop switching and try to restart after a period of time.
This period can be adjusted by connecting different
capacitors between this pin and ground.
GND (ground)
IC common ground.
Figure 1
Pin configuration with PG-DSO-8
LG (low side gate drive)
Low side power MOSFET driver.
1.2
Pin Functionality
HG (high-side gate drive)
Up side power MOSFET driver.
FMIN (minimum switching frequency)
An external resistor is connected between this pin and
the ground. The voltage of this pin is constant during
operation and thus the resistance determines the
current flowing out of this pin. The minimum switching
frequency is determined by this current. The maximum
Version 2.0
VCC (IC power supply)
Supply voltage of the IC.
5
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
Representative Block Diagram
2
Representative Block Diagram
Figure 2
Version 2.0
Representative Block Diagram
6
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
Functional description
3
Functional description
Everytime the capacitor CFS is charged by Ichg to VCH,
the upper switch is turned off and CFS will be
discharged through Idisc. The charge time determines
the on time for gate signal. The discharge time
determines the dead time during transition from one
gate off to another gate on. The switching waveforms
of the oscillator and gate signals are shown in Figure 4.
The controller ICE1HS01G-1 with two gate outputs is
specially designed for LLC resonant half-bridge
converters. An oscillator with accurately-programmed
frequency range is built inside the IC. The two gate
signals are obtained by passing the signal out from the
oscillator through a divide-by-two flip-flop. Therefore,
two signals are of exactly 50% duty cycle and 180o out
of phase. To guarantee the zero-voltage-switching and
safe operation in half-bridge topologies, a fixed dead
time of 380ns is inserted in each internal when one
switch is turned off and the other is turned on.
For LLC resonant half-bridge converter, the output
voltage is regulated by changing the switching
frequency. ICE1HS01G-1 offers the designer to
choose suitable operation frequency range by
programming the oscillator with one single resistor.
In addition, ICE1HS01G-1 offers a programmed softstart function to limit both the inrush current and the
overshoot in output voltage.
To protect the system during operation, mains input
under-voltage protection and over-current protection
are integrated in ICE1HS01G-1 as well.
VCF
4V
1V
t
Vdelay
5V
0V
t
VLG
10V
0V
t
VHG
3.1
Oscillator and Pulse Frequency
Modulation
10V
0V
The oscillator is programmed with only one external
resistor RFMIN connected to FMIN pin. The trimmed
capacitor CFS is built inside the IC with high accuracy.
The simplified oscillator circuit is shown in Figure 3.
td
Figure 4
FMIN
QF2
QF3
Oscillator waveforms
According to Figures 3 and 4, the on time of each gate
can be obtained as
Vdd
QF1
1.5V
t
ICE1HS01G
CF1
Ichg_min
3C FS
T on = -----------I chg
RFMIN
ISS
Q
FB
S
VCH
CO1
1
f s = --------------------------------3C
FS
2 æ ------------ + T dö
è I chg
ø
IFB
Idisc
CS
The switching frequency can be obtained as
R
Ichg
ICS
CFS
[2]
VCL
CO2
R
Q
[3]
S
where the dead time Td is fixed as 380ns.
Figure 3
Simplified oscillator circuit
3.1.1
Minimum charge current
The voltage on pin FMIN is a constant of 1.5V during
normal operation. The resistor RFMIN determines the
current (IFMIN) flowing out from FMIN pin. Around onetenth of IFMIN is defined as the minimum charging
current (Ichg_min), which in turn defines the minimum
switching frequency as follows.
The charge current Ichg is sum of four currents which
are Ichg_min, IFB, ICS and ISS.
I chg = I chgmin + I FB + I cs + I ss
Version 2.0
[1]
7
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
Minimum switching frequency [kHz]
Functional description
3.1.3
Current sense current ICS
In LLC resonant topologies, it is necessary to limit the
resonant current in case of short circuit or other fault
conditions. It is achieved by adding another current Ics
to the charging current Ichg. ICS is limited to 3 times of
the minimum charge current.
280
260
240
220
200
180
160
140
120
100
80
60
40
20
0
0
3.1.4
Soft start current ISS
To limit the inrush current and output overshoot during
start up, the switching frequency shall be necessary
high at start up. The switching frequency will change
gradually toward the minimum switching frequency
until the feedback voltage comes into regulation. The
switching frequency will then go to desired value
according to load and input conditions. The soft start
current Iss also has a upper limit of around 3.4 times of
minimum charge current. Details of soft start will be
shown later.
5 10 15 20 25 30 35 40 45 50 55 60 65
RFMIN [kohm]
Figure 5
FMIN versus RFMIN
3.1.5
Charge current Ichg
The charge current Ichg for IC oscillator capacitor CFS is
the sum of the four parts including Ichg_min, IFB, ISS and
ICS. To limit the maximum switching frequency,
maximum value of Ichg is 5 times of Ichg_min.
In summary, the maximum charge current during
normal operation is 3Ichg_min while the maximum charge
current during fault condition or softstart is around
4Ichg_min and 4.43*Ichg_min respectively. Figure 7 shows
the maximum switching frequency versus minimum
switching frequency during normal operation.
450
400
200
190
180
170
160
150
140
130
120
110
100
90
80
70
60
50
350
FMAX [kHz]
Frequency [kHz]
3.1.2
Feedback regulation
The output information is fed into the controller through
feedback voltage. If the output power is higher, the
feedback voltage will be higher, which will cause the
switching frequency to decrease and vice versa.
The regulation of switching frequency is achieved by
changing the charging current. An accurate operational
transconductance amplifier (OTA) is used to translate
the feedback voltage VFB into current IFB. The effective
range of feedback voltage is from 0.9V to 3.9V.
Figure 6 graphs the relationship between the actual
switching frequency and feedback voltage VFB when
RFMIN=22kohm.
300
250
200
150
100
50
0
0
25
50
75
100
125
150
175
200
FMIN [kHz]
Figure 7
0
0.5
Figure 6
1
1.5
2
2.5
3
Feedback voltage Vfb [V]
3.5
4
4.5
Fmax versus Fmin during normal
operation
Switching frequency versus VFB
Burst mode operation is also provided by ICE1HS01G1. During LLC operation, the feedback signal VFB is
continuously monitored. When VFB drops below VFB_off,
the switching signal will be disabled after a fixed
blanking time TFB. VFB will then rise as Vout starts to
decrease due to no switching signal. Once VFB exceeds
the threshold VFB_on, the IC resumes to normal
operation.
Version 2.0
8
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
Functional description
3.4
Figure 8 shows the maximum switching frequency
versus minimum switching frequency during softstart.
Current sense in LLC half bridge converters is for
protection purpose. The voltage of resonant capacitor
CS is the sum of the resonant voltage and the dc
voltage which is equal to half of the input bus voltage.
If resonant current is higher, then the voltage on CS is
higher.The current informations for both primary side
and secondary side are almost the same and can be
obtained by dividing and filtering the resonant voltage.
The circuit is shown in Figure 10.
550
FMAX_soft start [kHz]
Current sense
500
450
400
350
300
250
200
150
100
50
0
0
25
50
75
100
125
150
175
200
VBUS
FMIN[kHz]
Figure 8
3.2
The controller ICE1HS01G-1 is targeting at
applications with auxiliary power supply. In most cases,
a front-end PFC pre-regulator with a PFC controller is
used in the same system.
The controller ICE1HS01G-1 starts to operate when
the supply voltage VVCC reaches the on-threshold,
VVCCon of 12V. The minimum operating voltage after
turn-on, VVCCoff, is at 11V. The maximum
recommended operating voltage VVCCmax is 18V.
CCS2
Figure 10
3.5
Soft start
300
Frequency [kHz]
250
200
150
100
3.6
50
10
15
20
25
30
35
Time [ms]
Figure 9
Switching frequency during softstart
when RFMIN=22kohm
During soft start, the overload protection is disabled
although FB voltage is high.
Version 2.0
CCS1
DCS2
Current sense circuit
Over current protection
Mains Input Voltage Sense
The working range of mains input voltage needs to be
specified for LLC resonant converter. It is important for
the controller to have input voltage sensing function
and protection features, which lets the IC stop
switching when the input voltage falls below the
specified range and restarts when the input voltage
increases back within the range. The mains input
voltage sensing circuit is shown Figure 2. With the
0
5
RCS2
RCS1
The controller ICE1HS01G-1 incorporates two-level
over current protection. In case of over-load condition,
the lower level OCP will be triggered, the switching
frequency will be increased according to the duration
and power of the over load. The higher level OCP is
used to protect the converter if transformer winding is
shorted, the IC will be latched immediately.
If VCS is higher than 0.8V, IC will boost up the switching
frequency. If Vcs is lower than 0.75V, IC will resume to
normal operation gradually. If VCS is always higher than
0.8V for 1.5ms, the frequency will rise to its maximum
level. And vice versa.
To sum up, ICE1HS01G-1 will increase the switching
frequency to limit the resonant current in case of
temporary over-load and will also decrease the
switching frequency to its normal value after over-load
condition goes away.
At the beginning of the startup phase, the IC provides
a soft start with duration of 32ms with 32 steps. During
this period, the switching frequency is controlled
internally by changing the current ISS.
Figure 9 illustrates the actual switching frequency vs.
startup time when RFMIN=22kohm. During softstart, the
frequency starts from 250kHz, and step by step drops
to normal operation point.
0
DCS1
VCS
WP
CS
Q2
Fmax_ss versus Fmin during soft start
IC power supply
3.3
Q1
9
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
Functional description
current source Ihys connected between VINS and
Ground, an adjustable hysteresis between the on and
off input voltage can be created as
If CFB is 10nF, the time is about 439us. After VFB
reaches VFBH, an internal counter will increase by 1 and
the capacitor is discharged to 0.5V by QFB again. The
charging and discharging process of CFB will be
repeated for NOLP_E times if the fault condition still exist.
After the last time of NOLP_E the FB voltage is pulled
down to zero, IC will stop the switch when FB voltage
rises to VFBH again. This is called over load/open loop
protection. During the charging and discharging period,
the IC will operate with frequency determined by Ichg_min
and ICS.
[4]
V HYS = R INS1 × I hys
The mains input voltage is divided by RINS1 and RINS2 as
shown in the typical application circuit. A current source
Ihys is connected from VINS pin to ground in the IC. If
the on and off threshold for mains voltage is Vmainon and
Vmainoff, the resistors can be decided as
V mainon – V mainoff
R INS1 = ------------------------------------------I hys
VFB (V)
4.5V
V INSON
R INS2 = R INS1 × -----------------------------------------V mainoff – V INSON
3.7
5V
[5]
[6]
Over load protection
0.5V
t1
In case of open control loop or output over load fault,
the FB voltage will increase to its maximum level. If FB
voltage is higher than VFBH and this condition last
longer than a fixed blanking time of TOLP (20ms), the IC
will start the extended blanking timer. The extended
blanking timer is realized by charging and discharging
the filter capacitor CFB via the pull up resistor RFB and
QFB. The circuit for extended blanking timer is shown in
Figure 11.
Iref
I
Figure 12
Vdd
1.0V
S
RFB
Q
R
FB
TOLP
24ms
CFB1
4.5V
CFB2
EnA
S
QFB
T OLP_R
1.2ms
Q
R
CFB3
EnA
0.5V
UP
Reset
OLP
CLK
S
Q
AR
R
AR_R
EnA
CFB4
0.8V
R
0.5V
EnA
Q
Gate_off
S
CFB5
Figure 11
Circuit connected to FB pin
The FB voltage waveform during a OLP period is
shown in Figure 12. After FB voltage has been higher
than VFBH for the fixed blanking time t1 shown in Figure
11, IC will use internal switch QFB to discharge VFB to
VFBL. After the switch QFB is released, CFB will be
charged up by Vdd through RFB. The time needed for
CFB being charged to VFBH can be calculated as
V dd – V FBHö
t chg = – ln æ --------------------------× R FB × C FB
è V dd – V FBL ø
Version 2.0
t3
Time
FB voltage waveform during over load
protection
If the converter returns to normal operation during the
extended blanking time period, FB voltage can not
reach VFBH again. Therefore, after FB voltage is
discharged to zero voltage, if it can not reach VFBH
within TOLP_R, IC will reset all the fault timer to zero and
return to normal operation.
After IC enters into OLP, both switches will be stopped.
However, the IC remains active and will try to start with
soft start after an adjustable period. This period is
realized by charging and discharging the capacitor CINS
connected to VINS pin for NOLP_R times. The time is
therefore determined by the capacitor CINS and resistor
RINS1 and RINS2. The circuit implementation of the
adjustable off time is shown in Figure 13 and Figure 14
shows the voltage waveform of VINS in this case.
As shown in Figure 14, the CINS is discharged to VINS_L
when IC enters into OLP at time t1. After that, an
internal constant current source IINST is turned on to
charge CINS. Once the voltage on VINS is charged to
VINS_H, the current source will be turned off and CINS is
discharged by another switch Q3 to VINS_L again. The
charging and discharging of CINS is thought as one
cycle. The cycle time is also influenced by the bus
ICE1HS01G
IFB
t2
[7]
10
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
voltage. The charging time tcha and discharging time
tdisc can be respectively approximated as
t disc
R eq2
æV
- – V INSL ö÷
ç BUS × -----------R INS1
= – ln ç ----------------------------------------------------÷ × R eq2 × C INS
R eq2
çV
÷
- – V INSHø
è BUS × -----------R INS1
VVINS (V)
t cha
VINS_H
R eq ö
æ æ V BUS × ------------ + ( I INST × R eq ) – V INSHö÷
çè
R INS1ø
= – ln ç ---------------------------------------------------------------------------------------------÷ × R eq × C INS [8]
R eq ö
ç æV
÷
- + ( I INST × R eq ) – V INSLø
è è BUS × -----------R INS1ø
[9]
VINS_L
In [8], Req is the equivalent resistance for paralleling of
RINS1 and RINS2.
t1
[10]
1
R eq = ---------------------------------1
1
------------- + ------------R INS1 R INS2
Figure 14
t2
t3 Time
VINS voltage waveform during blanking
time after OLP and before IC restarts
In [9], Req2 is the equivalent resistance for paralleling of
RINS1, RINS2 and RQ3 (900ohm typically).
1
R eq2 = -------------------------------------------------1
1
1
------------- + ------------- + --------R INS1 R INS2 R Q3
[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 Figure 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.
Vdd
IINST
ICE1HS01G
Q1
VINS
Mains_OK
CV1
Ihys
1.25V
Q2
4.5V
CV2
EnA
Q3
CV3
EnA
R
Q
S
Q
Counter
CLK
TBL_VINS
20ms
AR_R
0.5V
AR
Figure 13
Version 2.0
Circuit connected to VINS pin
11
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
Electrical Characteristics
4
Note:
4.1
Electrical Characteristics
All voltages are measured with respect to ground (Pin 5). The voltage levels are valid if other ratings are
not violated.
Absolute Maximum Ratings
Note: Absolute maximum ratings are defined as ratings, which when being exceeded may lead to destruction
of the integrated circuit. For the same reason make sure, that any capacitor that will be connected to pin 8 (VCC)
is discharged before assembling the application circuit.
Parameter
Symbol
Limit Values
min.
max.
Unit
Remarks
VCC Supply Voltage
VVCC
-0.3
20.51)
V
VHG Voltage
VLG
-0.3
18
V
VLG Voltage
VLG
-0.3
18
V
CS voltage
VCS
-0.3
5
V
FB voltage
VFB
-0.3
5
V
VINS voltage
VVINS
-0.3
5
V
FMIN voltage
VFMIN
-0.3
5
V
Maximum source current on FMIN
IFMIN
-
2.5
mA
Junction Temperature
Tj
-40
125
°C
Storage Temperature
TS
-55
150
°C
Thermal Resistance
Junction-Ambient for PG-DSO-8
RthJA(DSO)
-
185
K/W
PG-DSO-8
ESD Capability
VESD
-
2
kV
Human body model2)
1) Stress beyond this limit may destroy the device. Functional operation of the device at this or any condition
beyond those indicated under 4.2 Operating Range is not implied. Exposure to absolute maximum rated
conditions for extended periods of time may affect device reliability.
2) According to EIA/JESD22-A114-B (discharging a 100pF capacitor through a 1.5kW series resistor)
4.2
Note:
Operating Range
Within the operating range the IC operates as described in the functional description.
Parameter
Symbol
Limit Values
min.
max.
Unit
VCC Supply Voltage
VVCC
10.2
18
V
Junction Temperature
TjCon
-25
125
°C
Version 2.0
12
Remarks
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
Electrical Characteristics
4.3
4.3.1
Note:
Characteristics
Supply Section
The electrical characteristics involve the spread of values guaranteed within the specified supply voltage
and junction temperature range TJ from – 25 oC to 125oC. Typical values represent the median values,
which are related to 25°C. If not otherwise stated, a supply voltage of VCC = 15 V is assumed.
Parameter
Symbol
Limit Values
min.
typ.
max.
Unit
Test Condition
Start up Current
IVCCstart
200
350
530
mA
VVCCon-0.1V
Supply Current in operation with
inactive gate
IVCCop
-
-
3
mA
no switching;
Supply Current in normal
operation with active gate
IVCCactive
-
5.8
-
mA
Freq=50kHz
RFMIN=30kW
VFB=4.2V, VCS=0V
CL=2.2nF,VVCC=15V
VCC Turn-On Threshold
VVCCon
11.3
12
12.7
V
VCC Hysteresis
VVCChys
0.68
0.95
1.25
V
VCC Turn-Off Threshold
VVCCoff
-
VVCCon
VVCChys
-
V
Trimmed Reference Voltage
VREF
4.90
5.0
5.10
V
IFB=0
Unit
Test Condition
4.3.2
Oscillator Section
Parameter
Symbol
Limit Values
min.
typ.
max.
Minimum switching frequency
FMIN
47
50
53
kHz
RFMIN=30kW;
Maximum switching frequency
during normal operation
FMAX_N
-
128
-
kHz
RFMIN=30kW;VFB=0.6V,
VCS=0V, after softstart
Maximum switching frequency
during protection
FMAX_P
-
203
-
kHz
RFMIN=30kW;VFB=0.6V,
VCS=1V
Absolute Maximum switching
frequency
FMAX_abs
-
609
-
kHz
RFMIN=4.8kW,
VFB=0.9V, VCS=1V, soft
start first cycle
Reference voltage on FMIN
VOSCRef
1.44
1.5
1.56
V
Dead time
Td
340
380
420
ns
RFMIN=30kW;VFB=0.6V,
VCS=0V
Oscillation duty cycle
D
48
50
52
%
based on calculation
Version 2.0
13
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
Electrical Characteristics
4.3.3
Input voltage sense
Parameter
Symbol
Limit Values
min.
typ.
max.
Unit
Input voltage on threshold
VVINSon
1.2
1.25
1.3
V
Bias current on VINS pin
Ihys
9
12
15
mA
Blanking time for leaving mains
undervoltage protection
TVINS_out
-
500
-
ms
-
50
-
ms
Blanking time for entering
TVINS_in
mains under voltage protection
4.3.4
Test Condition
Current sense
Parameter
Overcurrent protection low
Symbol
VCSL
Hysteresis voltage for
overcurrent protection low
Limit Values
Unit
min.
typ.
max.
0.75
0.8
0.85
V
-
50
-
mV
Test Condition
Overcurrent protection high
VCSH
1.57
1.63
1.7
V
Blanking time for OCP latch
TOCP_L
-
300
-
ns
Maximum switching frequency
during over current protection
FMAX_C
-
163
-
kHz
RFMIN=30kW;VFB=4.2V,
VCS=1V, after soft start
and 2ms after VCS
higher than 0.8V
Counter input voltage high
VCS_CH
-
4.5
-
V
Not subject to test
Counter input voltage low level VCS_CL
-
0.5
-
V
Not subject to test
Blanking time after each gate is
turned on
-
250
-
ns
Version 2.0
TLEB
14
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
Electrical Characteristics
4.3.5
Soft start
Parameter
Symbol
Limit Values
min.
typ.
max.
Unit
Test Condition
ms
Test as a 32ms
softstart time
Soft start timer
TSS
-
1
-
Soft start steps
NSS
-
32
-
-
3.43
-
-
184
-
kHz
RFMIN=30kW;
Td=380ns; first cycle
softstart
Limit Values
Unit
Test Condition
Ratio of ISS over Ichgmin
Soft start frequency
4.3.6
Fss_step
Not subject to test
Feedback
Parameter
Symbol
min.
typ.
max.
Feedback voltage below which
there is no regulation
VFB_min
-
0.9
-
V
Feedback voltage above which
there is no regulation
VFB_max
-
3.9
-
V
Pull up resistance
RFB
15
20
25
kW
Feedback voltage below which
there is no switch
VFB_off
-
0.2
-
V
Feedback voltage above which
IC resumes switch
VFB_on
-
0.3
-
V
Blanking time for switch on and
off
TFB
-
200
-
ns
Note: The trend of all the voltage levels in the Control Unit is the same regarding the deviation except VVCCOVP
Version 2.0
15
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
Electrical Characteristics
4.3.7
Over load/Open loop protection
Feedback voltage for open
loop/over load protection
VFBH
-
4.5
-
V
Feedback voltage high level for
extended timer
VFB_CH
-
4.5
-
V
Feedback voltage low level for
extended timer
VFB_CL
-
0.5
-
V
On resistance of pulling down
switch QFB
RQFB
-
900
-
ohm
Fixed Blanking time for open
loop/over load protection
TOLP_F
-
20
-
ms
Maximum time for FB voltage
to go up to VFBH during
extended blanking timer
TOLP_R
-
1.28
-
ms
Extended counter
NOLP_E
-
512
-
Charging current on VINS pin
for restart time
IINST
-
750
-
mA
Maximum voltage on VINS pin
charged by IINST
VINS_H
-
4.5
-
V
Minimum voltage on VINS pin
pulled down by Q3
VINS_L
-
0.5
-
V
On resistance of pulling down
switch Q3
RQ3
-
900
-
ohm
Restart counter number
NOLP_R
-
2048
-
Blanking time before IC
restarts after restart counter
reaches 2048
TBL_VINS
-
20
-
4.3.8
ms
Gate driver
Parameter
Symbol
Limit Values
min.
typ.
max.
Unit
Test Condition
Output voltage at logic low
VGATElow
-
-
1.5
V
VVCC=5V, IOUT = 20mA
Output voltage at logic high
VGATEhigh
-
9
-
V
VVCC=VVCCoff+0.2V
CL=2.2nF
Output voltage active shut down VGATEasd
-
1.0
-
V
VVCC = 5V, IOUT = 20mA
Rise Time
trise
-
100
-
ns
CL = 2.2nF
Fall Time
tfall
-
25
-
ns
CL = 2.2nF
GATE current, Peak
Rising Edge
IGATE_R
1
-
-
A
CL = 2.2nF1)
GATE current, Peak
Falling Edge
IGATE_F
-
-
1.5
A
CL = 2.2nF1)
1) Design characteristics (not meant for production testing)
Version 2.0
16
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
Outline Dimension
5
Outline Dimension
PG-DSO-8
(Plastic Dual Small Outline)
Figure 15
Version 2.0
PG-DSO-8
17
02 July 2011
Half-Bridge Resonant Controller
ICE1HS01G-1
Marking
6
Marking
Marking
Figure 16
Version 2.0
Marking for ICE1HS01G-1
18
02 July 2011
Total Quality Management
Qualität hat für uns eine umfassende
Bedeutung. Wir wollen allen Ihren
Ansprüchen in der bestmöglichen
Weise gerecht werden. Es geht uns also
nicht nur um die Produktqualität –
unsere Anstrengungen gelten
gleichermaßen der Lieferqualität und
Logistik, dem Service und Support
sowie allen sonstigen Beratungs- und
Betreuungsleistungen.
Quality takes on an allencompassing
significance at Semiconductor Group.
For us it means living up to each and
every one of your demands in the best
possible way. So we are not only
concerned with product quality. We
direct our efforts equally at quality of
supply and logistics, service and
support, as well as all the other ways in
which we advise and attend to you.
Dazu gehört eine bestimmte
Geisteshaltung unserer Mitarbeiter.
Total Quality im Denken und Handeln
gegenüber Kollegen, Lieferanten und
Ihnen, unserem Kunden. Unsere
Leitlinie ist jede Aufgabe mit „Null
Fehlern“ zu lösen – in offener
Sichtweise auch über den eigenen
Arbeitsplatz hinaus – und uns ständig
zu verbessern.
Part of this is the very special attitude of
our staff. Total Quality in thought and
deed, towards co-workers, suppliers
and you, our customer. Our guideline is
“do everything with zero defects”, in an
open manner that is demonstrated
beyond your immediate workplace, and
to constantly improve.
Unternehmensweit orientieren wir uns
dabei auch an „top“ (Time Optimized
Processes), um Ihnen durch größere
Schnelligkeit den entscheidenden
Wettbewerbsvorsprung zu verschaffen.
Geben Sie uns die Chance, hohe
Leistung durch umfassende Qualität zu
beweisen.
Wir werden Sie überzeugen.
http://www.infineon.com
Published by Infineon Technologies AG
Throughout the corporation we also
think in terms of Time Optimized
Processes (top), greater speed on our
part to give you that decisive
competitive edge.
Give us the chance to prove the best of
performance through the best of quality
– you will be convinced.
Similar pages