IR11688STRPBF [INFINEON]

DUAL SYNCHRONOUS RECTIFICATION CONTROL IC;
IR11688STRPBF
型号: IR11688STRPBF
厂家: Infineon    Infineon
描述:

DUAL SYNCHRONOUS RECTIFICATION CONTROL IC

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中文:  中文翻译
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SMPS IC  
SmartrectifierTM  
IR11688S  
DUAL SYNCHRONOUS RECTIFICATION CONTROL IC  
Product Summary  
Features  
Secondary-side  
high  
speed  
synchronous  
Topology  
VD  
LLC Half-bridge  
200V  
rectification controller for resonant half bridge  
converters  
Direct sensing of MOSFET drain voltage up to 200V  
Operates up to 400kHz switching frequency  
Programmable Minimum On Time  
Anti-bounce logic and UVLO protection  
Linear turn-off phase to compensate for premature  
switch off due to parasitic inductance  
4A peak turn off drive current  
Micropower start-up & ultra-low quiescent current  
50ns turn-off propagation delay  
Wide Vcc operating range 4.75V to 18V  
Cycle by Cycle MOT Protection  
VOUT  
Vcc  
Io+ & I o-  
+1A & -4A  
Package Options  
Auto low power mode standby mode  
Improved noise immunity  
Compatible with Energy Star low standby power  
Lead-free  
8-Pin SOIC  
Typical Applications  
Desktop SMPS, Server SMPS, AC-DC adapters,  
LCD & PDP TV, Telecom SMPS  
Ordering Information  
Base Part Number  
IR11688S  
Standard Pack  
Package Type  
Complete Part Number  
Form  
Quantity  
SOIC8N  
Tape and Reel  
2500  
IR11688STRPBF  
1
2016-1-18  
IR11688S  
Typical Connection Diagram  
Gate1  
1
Gate2  
8
VCC  
2
GND  
7
LOAD  
Cout  
MOT  
3
VS  
6
VD1  
4
VD2  
5
2
2016-1-18  
IR11688S  
Table of Contents  
Ordering Information  
Page  
1
Description  
4
Absolute Maximum Ratings  
Electrical Characteristics  
Functional Block Diagram  
Input/Output Pin Equivalent Circuit Diagram  
Pin Definitions  
5
6
8
9
10  
10  
12  
23  
24  
25  
26  
Pin Assignments  
Application Information and Additional Details  
Package Details  
Tape and Reel Details  
Part Marking Information  
Qualification Information  
3
2016-1-18  
IR11688S  
Description  
The IR11688 is a dual smart secondary-side controller IC optimized to drive two N-Channel power MOSFETs  
configured for synchronous rectification in resonant converter applications. Each channel can drive one or multiple  
parallel MOSFETs to emulate the behavior of Schottky diode rectifiers, bypassing the body diodes for the majority  
of each conduction period to minimize power dissipation and remaining off during the blocking period.  
The drain to source voltage of each rectifier MOSFET is sensed to determine the source to drain current and turn  
each gate on rapidly at the start of each conduction cycle and off in close proximity to the zero current transitions  
for each branch of the output rectifier circuit. Ruggedness and noise immunity are accomplished using an  
advanced blanking scheme and double-pulse suppression that allows reliable operation in fixed and variable  
frequency applications.  
The programmable minimum on time (MOT) function provides flexibility to work over a wide range of switching  
frequencies. The cycle-by-cycle MOT protection circuit is able to automatically detect a light or no load condition so  
that the gate drives may be disabled to avoid unwanted reverse currents flowing through the MOSFETs.  
The IR11688 has a wide Vcc supply voltage range from 4.75V to 18V, enabling its supply to be derived from the  
output and eliminating the need for an auxiliary supply circuit in systems with output voltage as low as 5V.  
The IR11688 also has very low quiescent current when the gate drives are not switching to offer minimal power  
consumption in standby mode.  
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IR11688S  
Absolute Maximum Ratings  
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage  
parameters are absolute voltages referenced to COM, all currents are defined positive into any pin. The thermal  
resistance and power dissipation ratings are measured under board mounted and still air conditions.  
Parameters  
Supply Voltage  
Cont. Drain Sense Voltage  
Pulse Drain Sense Voltage  
Source Sense Voltage  
Gate Voltage  
Symbol  
VCC  
VD1,2  
VD1,2  
VS  
VGATE1,2  
VMOT  
TJ  
Min.  
-0.3  
-1  
-3  
-1  
-0.3  
-0.3  
-40  
-55  
Max.  
20  
200  
200  
5
Vcc+0.3  
3.5  
150  
150  
128  
970  
Units  
V
V
V
V
V
V
°C  
°C  
°C/W  
mW  
Remarks  
MOT Voltage  
Operating Junction Temperature  
Storage Temperature  
Thermal Resistance  
TS  
RθJA  
PD  
SOIC-8  
SOIC-8, TAMB=25°C  
Package Power Dissipation  
Recommended Operating Conditions  
For proper operation the device should be used within the recommended conditions.  
Symbol  
VCC  
Definition  
Min.  
Max.  
18  
200  
Units  
Supply voltage  
Drain Sense Voltage  
4.75  
V
VD  
-3  
TJ  
Junction Temperature  
-40  
125  
°C  
Fsw  
Switching Frequency  
---  
400  
kHz  
-3V negative spike width 100ns  
VD  
Recommended Component Values  
Symbol  
RMOT  
Component  
MOT pin resistor value  
Min.  
20  
Max.  
150  
Units  
kΩ  
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IR11688S  
Electrical Characteristics  
VCC=12V, TA = 25°C unless otherwise specified. The output voltage and current (VO and IO) parameters are  
referenced to GND (pin7).  
Supply Section  
Parameters  
Supply Voltage Operating  
Range  
Symbol Min.  
Typ.  
Max.  
Units  
Remarks  
VCC  
4.75  
4.35  
18  
V
V
VCC Turn On Threshold  
VCC Turn Off Threshold  
(Under Voltage Lock Out)  
VCC ON  
4.55  
4.35  
0.2  
4.75  
VCC UVLO 4.15  
4.55  
---  
V
V
VCC Turn On/Off Hysteresis VCC HYST  
---  
---  
CLOAD =1nF, fSW = 400kHz,  
Operating Current  
ICC  
13  
15  
mA RMOT=50kΩ  
No switching at VD pins and after  
TWAIT is exceeded, VD=2V,  
RMOT=50kΩ  
VCC=VCC ON - 0.1V  
Quiescent Current  
IQCC  
---  
---  
320  
40  
500  
80  
µA  
µA  
µS  
Start-up Current  
ICC START  
TWAIT  
Quiescent waiting time  
340  
570  
800  
Comparator Section  
Parameters  
Turn-off Threshold  
Regulation Threshold  
Symbol Min.  
Typ.  
-4  
Max.  
0
Units  
mV VS=0V  
mV  
mV  
Remarks  
VTH1  
VTHR  
VTH2  
-7  
-50  
-263  
---  
-40  
-230  
230  
-5  
-30  
-197  
---  
10mV hysteresis (-50mV/-40mV)  
Turn-on Threshold  
Hysteresis  
VHYST  
IIBIAS1  
IIBIAS2  
TBon  
mV GBD  
-7.5  
---  
VD = -50mV  
Input Bias Current  
Input Bias Current  
Turn-on Blanking time  
---  
µA  
µA  
ns  
VD = 200V  
GBD  
7
150  
10  
---  
---  
One-Shot Section  
Parameters  
Blanking pulse duration  
Reset Threshold  
Reset Delay  
Symbol Min.  
Typ.  
15  
1.18  
400  
40  
Max.  
24  
1.31  
---  
Units  
µs  
V
Remarks  
Remarks  
tBLANK  
8
1.06  
---  
VTH3  
tBRST  
ns  
Hysteresis  
---  
---  
mV GBD  
VHYST3  
Minimum On Time Section  
Parameters  
Symbol Min.  
Typ.  
500  
1
Max.  
625  
Units  
375  
TOnmin  
ns  
µs  
RMOT =24kΩ, VCC=5V  
RMOT =50kΩ, VCC=5V  
Minimum on time  
0.75  
1.25  
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IR11688S  
Electrical Characteristics  
VCC=12V, TA = 25°C unless otherwise specified. The output voltage and current (VO and IO) parameters are  
referenced to GND (pin7).  
Gate Driver Section  
Parameters  
Gate Low Voltage  
Symbol Min.  
Typ.  
0.15  
11.9  
4.9  
20  
10  
Max.  
0.25  
---  
---  
38  
Units  
V
Remarks  
IGATE = 100mA  
GBD  
GBD  
CLOAD = 1nF  
VGLO  
---  
---  
---  
---  
---  
Gate High Voltage  
VGTH  
V
Rise Time  
Fall Time  
tr  
tf  
ns  
ns  
22  
CLOAD = 1nF  
VDS to VGATE – VDS goes down  
from 6V to -1V  
Turn on Propagation Delay  
tDon  
---  
200  
250  
ns  
VDS to VGATE –VDS goes up from  
-1V to 6V  
GBD  
Turn off Propagation Delay  
Pull up Resistance  
Pull down Resistance  
Output Peak Current  
(source)  
tDoff  
rup  
rdown  
---  
---  
---  
42  
6
1.5  
60  
---  
---  
ns  
IGATE = -100mA  
IO source  
IO sink  
---  
---  
1
4
---  
---  
A
A
GBD  
GBD  
Output Peak Current (sink)  
GBD – parameter is guaranteed by design and is not tested.  
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IR11688S  
Functional Block Diagram  
VCC  
UVLO  
&
Internal Bias  
VTHR  
VTH3  
RESET  
Min ON Time  
VCC  
(With Cycle by Cycle  
MOT Check Circuit)  
150ns  
VD1  
VS  
GATE1  
Min OFF Time  
MOT  
PGEN  
MOT  
Shoot-through  
Protection  
Logic  
Min ON Time  
(With Cycle by Cycle  
MOT Check Circuit)  
150ns  
VD2  
GATE2  
GND  
Min OFF Time  
VCC  
RESET  
VTH3  
VTHR  
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IR11688S  
I/O Pin Equivalent Circuit Diagram  
VCC  
VD1  
VD2  
RESD  
ESD  
Diode  
ESD  
Diode  
GATE1  
GATE2  
ESD  
Diode  
200V  
Diode  
GND  
GND  
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IR11688S  
Pin Definitions  
PIN#  
Symbol  
GATE1  
VCC  
MOT  
VD1  
VD2  
VS  
GND  
GATE2  
Description  
Gate Drive Output 1  
Supply Voltage  
Minimum On Time Programmable pin  
Sync FET 1 Drain Voltage Sense  
Sync FET 2 Drain Voltage Sense  
Sync FET Source Voltage Sense  
Analog and Power Ground  
Gate Drive Output 2  
1
2
3
4
5
6
7
8
Pin Assignments  
Gate1  
Gate2  
8
1
VCC  
2
GND  
7
MOT  
3
VS  
6
VD1  
4
VD2  
5
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IR11688S  
Detailed Pin Description  
VCC: Power Supply  
This is the supply voltage pin of the IC, monitored by the under voltage lockout circuit. It is possible to turn off the  
IC entering UVLO mode by pulling this pin below the minimum turn off threshold voltage for micro power  
consumption.  
To prevent noise interfering with operation, a ceramic decoupling capacitor should be connected from Vcc to GND  
and located as close to the IC as possible. A low value series resistor may also be added to the Vcc supply circuit  
for filtering if required. Vcc is internally clamped at around 20V.  
GND: Ground  
This is power ground connection to the IC. Internal circuit blocks and gate drivers are referenced to this point.  
MOT: Minimum On Time  
The MOT programming pin controls the amount of minimum on time. Once VTH2 is crossed at either VD input, the  
corresponding gate drive output will transition high to turn on the SR MOSFET. Spurious ringing and oscillations  
can falsely trigger the input comparator to prematurely switch the output off. During the MOT period the input  
comparator is disabled maintaining conduction through the MOSFET on for this preset minimum period.  
The MOT is typically programmed between 500ns and 2us by means of an external resistor referenced to GND.  
VD1 and VD2: Drain Voltage Sense  
The VD pins are the voltage sensing inputs for the SR MOSFET drains. These are high voltage inputs therefore  
particular care must be taken in properly routing the connections. Additional RC filters can be placed at these  
inputs to improve noise immunity, however only a small resistor (≤1kΩ) and capacitor value (in the pF range) may  
be used to avoid introducing excessive delay to the control input.  
VS: Source Voltage Sense  
This is the signal ground for the sources of the two SR power MOSFETs to provide an accurate differential voltage  
measurement. Kelvin connect this pin to the source of MOSFET2 (channel 2 MOSFET) is recommended if the two  
MOSFETs are far apart to each other.  
GATE1 and GATE2: Gate Drive Outputs  
Each gate driver output has +1A/-4A peak drive capability. Although these pins can be directly connected to the  
SR MOSFET gates the use of gate resistors is recommended, especially when using several MOSFETs in parallel.  
Care must be taken to keep the gate loop as short and as tight as possible in order to achieve optimal switching  
performance.  
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IR11688S  
Application Information and Additional Details  
State Diagram  
POWER ON  
Gate Inactive  
UVLO/SLEEP MODE  
VCC < VCCon  
Gate Inactive  
ICC max = 200uA  
VCC > VCCon,  
DS>VTH3 two edges  
V
VCC < VCCuvlo  
or  
No VD edge > Twait  
NORMAL  
Gate Active  
Gate PW ≥ MOT  
Cycle by Cycle MOT Check Enabled  
VDS>VTH1 @ MOT  
VDS<VTH1 @ MOT  
MOT PROTECTION MODE  
Gate Output Disabled  
UVLO/SLEEP Mode  
The IC remains in the UVLO/SLEEP condition until the voltage at the VCC pin first exceeds the VCC turn on  
threshold voltage, VCC ON. While in the UVLO/SLEEP state, the gate drive outputs are inactive and only a very small  
quiescent current of ICC START is drawn. UVLO mode is accessible from any other state of operation whenever the IC  
supply voltage condition of Vcc < VCC UVLO occurs. If during normal operation, the drain inputs remain inactive such  
that no edges are detected for a period longer than TWAIT the IC enters SLEEP mode. It remains in a low power  
state until woken up by a voltage transition at either VD input.  
Normal Mode  
The IC enters into normal operating mode when the VCC ON threshold has been exceeded. On entering Normal  
Mode from the UVLO Mode the GATE outputs remain disabled until VDS transitions above VTH3 two times. This  
ensures that the GATE output cannot be enabled in the middle of a switching cycle since this can cause undesired  
reverse conduction. The cycle by cycle minimum on time (MOT) protection circuit also becomes activated to  
prevent reverse currents occurring when conduction time is short, which may also happen during system power up  
and down. The gate drives will continuously drive the MOSFETs after this startup sequence is completed.  
MOT Protection Mode  
If secondary current conduction time in either rectifier circuit branch is shorter than the set MOT, the subsequent  
gate driver output pulse is skipped. This function avoids reverse current from occurring when the system is  
switching at very low duty-cycles under very light or zero load conditions. The cycle by cycle MOT check circuit  
always remains active in Normal Mode and MOT Protection Mode so that the IC will automatically resume normal  
operation only after the load increases to a level where the secondary current conduction time exceeds MOT.  
System standby power consumption is significantly reduced in this mode while the gate outputs are inactive.  
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IR11688S  
General Description  
The IR11688 dual SMART RECTIFIERTM controller is a high-voltage IC for synchronous rectification designed for  
resonant converter applications. As stated, it emulates the operation of two diodes configured with a center tapped  
transformer secondary by correctly switching on and off the synchronous rectifier MOSFETs in the two rectifier  
circuit branches.  
The core of this device consists of two high-voltage drain sensing inputs feeding high speed comparators to  
differentially sense the drain to source voltage at each SR MOSFET. The SR MOSFET source to drain current is  
detected from the voltage across the conducting body diode or the RDSON resistance when switched on. Internal  
control logic allows the corresponding gate drive output to be switched on and off at the correct time to bypass the  
body diode for the majority of the conduction period.  
The IR11688 further simplifies synchronous rectifier control by offering the following power management features:  
Wide VCC operating range allows the IC to be supplied from the converter output  
Shoot through protection logic that prevents both GATE outputs from ever being high at the same time  
Turn-off phase regulation to compensate for power device package inductance and avoid premature turn-  
off  
Optimized negative turn on voltage threshold detection and leading edge noise filter to minimize false  
triggering due to ringing oscillations  
The IR11688 control technique senses SR MOSFET source to drain voltages comparing them with three different  
negative thresholds (VTH1, VTH2 and VTHR) to precisely control gate turn on and off as shown in figure 1:  
VGATE  
VTH2  
VTH1  
VTHR  
VDS  
Figure 1: Input comparator thresholds  
Turn-on phase  
When the conduction phase of each SR MOSFET begins, the device is off so therefore current starts to flow  
through the body diode producing a negative VDS voltage across it. The body diode has a much higher voltage  
drop than the one resulting from the MOSFET on resistance and is therefore sufficient to trigger the turn-on  
threshold VTH2  
.
When either VDS input remains below VTH2 for more than TBon (150ns), the gate of the corresponding SR MOSFET  
is driven high, which causes VDS to reduce rapidly to ID x RDSON. The internal delay timer will be reset if VDS rises  
above VTH2 before TBon times out. This turn-on blanking time helps to avoid misfiring that could be triggered by high  
frequency ringing in DCM operation. The voltage drop at switch on is usually accompanied by some amount of  
ringing, which could potentially trigger the input comparator to turn off the gate drive very quickly. However the  
minimum on time (MOT) blanking period prevents this. The turn-on blanking time (TBon) and the MOT limit the  
minimum conduction time for the secondary rectifiers determining the switching frequency upper limit that the  
IR11688 may effectively operate at.  
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IR11688S  
Regulation phase  
After the gate has been driven high at switch on, the SR MOSFET remains on until the source to drain current falls  
to the level where VDS reaches the regulation threshold VTHR. At the end of the MOT, the gate output is no longer  
driven high and reverts to a high impedance state. When VDS<VTHR a weak pull down gradually discharges the  
gate voltage held by the SR MOSFET input capacitance. As the gate voltage drops, the MOSFET channel  
resistance increases as it enters the linear region. This causes VDS to once again exceed VTHR so that weak pull  
down will cease until the conduction current falls to the point where VDS again drops below VTHR. This regulating  
process continues so that the conduction period is extended until the current has fallen to a very low level. In this  
way premature turn off, which can arise due to parasitic inductances in PCB traces and the MOSFET package, is  
prevented. This period of conduction through the SR MOSFET body diodes is thereby reduced to a minimum  
improving overall system efficiency.  
Turn-off and reset phases  
At the end of the switching cycle the conduction rectifier current reduces to zero so the VDS voltage will cross the  
turn-off threshold VTH1. When this happens the gate is driven low to switch off the SR MOSFET. Any residual  
current will again start flowing through the body diode causing a negative step in VDS. When this occurs VDS could  
potentially trigger turn-on once again by crossing VTH2. To prevent this possibility, turn on is blanked for a time  
period, tBLANK after turn off has occurred. The blanking time is internally set and can be reset only when VDS  
crosses the positive threshold VTH3. Reset occurs only when VDS remains higher than VTH3 for more than the reset  
blanking time, tBRST. This protects against false triggering due to ringing after the turn-off phase. Once reset the  
IR11688 is re-armed so that turn on may be triggered for the next conduction cycle.  
VTH3  
DCM ringing  
IDS  
VDS  
(across  
MOSFET)  
T1  
T2  
VTH1  
VTHR  
VTH2  
Tbrst  
TDon  
TBon  
TDoff  
<TBon  
Gate Drive  
Blanking  
VDS pulse < TBon  
Gate stays off  
VDS pulse > TBon  
Gate turns on  
MOT  
MOT  
tBLANK  
time  
Figure 2: Secondary currents and voltages  
Programmable Minimum On Time  
The minimum on time is set by an external resistor (RMOT) connected between the MOT pin and ground. The  
minimum on time can be calculated based on below equation:  
T
MOT = RMOT x 2 x 10-11 + 20ns  
where 20ns is the typical internal comparator propagation delay.  
RMOT value should remain within the upper and lower limits specified under recommended operating conditions.  
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IR11688S  
MOT protection  
Under very light load or zero load conditions, the current in the SR MOSFETs becomes discontinuous and may be  
shorter than the MOT time in some cases. If this happens, reverse current will flow from the drain to source at the  
end of the MOT since the gate drive has been kept on. This reverse current discharges the converter output  
capacitor sending energy back to the transformer and resonating to cause voltage ringing at VDS at switch off.  
Such ringing may potentially trigger gate turn on leading to further reverse current and subsequent multiple falsely  
triggered erroneous gate pulses as illustrated below in Figure 4:  
VDS  
IDS  
Gate  
MOT  
Figure 3: Waveform without MOT protection  
The cycle-by-cycle MOT protection function detects reverse current at the end of the MOT period and disables the  
following gate output pulse preventing further reverse current. The internal comparator and MOT pulse generator  
continue to operate under the protection mode even when the gate drive is disabled. This enables the circuit to  
continuously monitor the system load current and automatically revert to normal operating mode once the load  
current conduction time has again increased to be longer than the MOT. This protection function reduces standby  
power losses and can also prevent voltage spikes caused by false triggering at light load.  
VDS  
IDS  
Gate Low  
Figure 4: Waveform under MOT protection mode  
Synchronized Enable Function  
Sync Enable function ensures that gate turn on always occurs at the beginning of a switching cycle.  
VGATE  
VDS  
UVLO  
Idrain  
Vth3  
IC activated in the middle of a  
conduction cycle, VGATE stays low.  
Vgate has output from the 3rd cycle  
VD>Vth3 for 2 cycles  
Figure 5: Synchronized Enable Function  
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IR11688S  
Driving Logic Level MOSFET  
An external gate clamping circuit is recommended when driving logic level SR MOSFETs. The clamping circuit  
keeps the gate voltage below 1V during system power up when the IR11688 is not fully biased in UVLO mode,  
especially when Vcc is less than 2V. It is not recommended to drive logic level MOSFETs with the IR11688 without  
a safety clamping circuit.  
Note the gate regulation feature will be lost when using PNP transistor clamping circuit. Use MOSFET clamping  
circuit (figure 7) if regulation function is needed.  
SR MOSFET 2  
Rg2  
SR MOSFET 1  
Rg1  
Gate1  
1
Gate2  
8
VCC  
2
GND  
7
CVcc  
MOT  
3
VS  
6
VD1  
4
VD2  
5
Rb1  
RMOT  
Rb2  
Figure 6: PNP transistor gate clamping circuit for driving logic level MOSFET  
SR MOSFET  
Rg2  
Gate1  
1
Gate2  
8
Rg1  
SR MOSFET  
VCC  
2
GND  
7
CVcc  
3
4
6
5
Clamp FET2  
Clamp FET1  
250k  
2M  
1M  
Clamp FET3  
Figure 7: Signal MOSFET gate clamping circuit for driving logic level MOSFET  
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IR11688S  
VTH1  
VDS  
VTH2  
tDon  
tDoff  
VGate  
90%  
10%  
trise  
tfall  
Figure 8: VD and gate drive output timing  
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IR11688S  
Figure 9: Undervoltage Lockout vs. Temperature  
Figure 10: Icc Quiescent Current vs. Temperature  
Figure 11: Icc supply current at 1nF load vs. Temperature Figure 12: Icc Startup Current vs. Temperature  
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IR11688S  
Figure 13: VD bias at -50mV vs. Temperature  
Figure 14: VD bias at 200V vs. Temperature  
Figure 15: VTH1 Threshold vs. Temperature  
Figure 16: VTH2 Threshold vs. Temperature  
(Red curve channel 1, Blue curve channel 2)  
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IR11688S  
Figure 17: VTH3 Threshold vs. Temperature  
Figure 18: TBRST Reset Time vs. Temperature  
Figure 19: VTHR+ Threshold vs. Temperature  
Figure 20: VTHR- Threshold vs. Temperature  
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IR11688S  
Figure 21: Minimum On Time vs. Temperature  
Figure 22: TWAIT Wait Time vs. Temperature  
Figure 23: TBLANK Blanking Time vs. Temperature  
Figure 24: Gate Pull Down Resistance vs. Temperature  
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IR11688S  
Figure 25: Gate Rise and Fall Time vs. Temperature (CH1) Figure 26: Gate Rise and Fall Time vs. Temperature (CH2)  
Figure 27: TDON Propagation Delay vs. Temperature  
Figure 28: TDOFF Propagation Delay vs. Temperature  
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IR11688S  
Package Details: SOIC8N  
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2016-1-18  
IR11688S  
Tape and Reel Details: SOIC8N  
LOADED TAPE FEED DIRECTION  
A
B
H
D
F
C
NOTE : CONTROLLING  
DIMENSION IN MM  
E
G
CARRIER TAPE DIMENSION FOR 8SOICN  
Metric  
Imperial  
Min  
0.311  
0.153  
0.46  
Code  
A
B
C
D
E
F
G
H
Min  
7.90  
3.90  
11.70  
5.45  
6.30  
5.10  
1.50  
1.50  
Max  
8.10  
4.10  
12.30  
5.55  
6.50  
5.30  
n/a  
Max  
0.318  
0.161  
0.484  
0.218  
0.255  
0.208  
n/a  
0.214  
0.248  
0.200  
0.059  
0.059  
1.60  
0.062  
F
D
B
C
A
E
G
H
REEL DIMENSIONS FOR 8SOICN  
Metric  
Imperial  
Code  
A
B
C
D
E
F
G
H
Min  
329.60  
20.95  
12.80  
1.95  
98.00  
n/a  
14.50  
12.40  
Max  
330.25  
21.45  
13.20  
2.45  
102.00  
18.40  
17.10  
14.40  
Min  
12.976  
0.824  
0.503  
0.767  
3.858  
n/a  
Max  
13.001  
0.844  
0.519  
0.096  
4.015  
0.724  
0.673  
0.566  
0.570  
0.488  
24  
2016-1-18  
IR11688S  
Part Marking Information  
Part number  
11688  
Date code  
YWW ?  
IR logo  
Pin 1  
Identifier  
C XXXX  
Lot Code  
(Prod mode –  
4 digit SPN code)  
?
MARKING CODE  
P
Lead Free Released  
Assembly site code  
Per SCOP 200-002  
25  
2016-1-18  
IR11688S  
Qualification Information†  
Industrial††  
Comments: This family of ICs has passed JEDEC’s Industrial  
qualification. IR’s Consumer qualification level is granted by  
extension of the higher Industrial level.  
Qualification Level  
MSL2††† 260°C  
SOIC8N  
Moisture Sensitivity Level  
(per IPC/JEDEC J-STD-020)  
Class A  
Machine Model  
Human Body Model  
(per JEDEC standard JESD22-A115)  
ESD  
Class 1C  
(per EIA/JEDEC standard EIA/JESD22-A114)  
Class I Level A  
(per JESD78)  
Yes  
IC Latch-Up Test  
RoHS Compliant  
Qualification standards can be found at International Rectifier’s web site: http://www.irf.com/product-  
info/reliability/  
†† Higher qualification ratings may be available should the user have such requirements. Please contact your  
International Rectifier sales representative for further information.  
††† Higher MSL ratings may be available for the specific package types listed here. Please contact your  
International Rectifier sales representative for further information.  
26  
2016-1-18  
IR11688S  
Published by  
Infineon Technologies AG  
81726 München, Germany  
© Infineon Technologies AG 2015  
All Rights Reserved.  
IMPORTANT NOTICE  
The information given in this document shall in no event be regarded as a guarantee of conditions or  
characteristics (“Beschaffenheitsgarantie”). With respect to any examples, hints or any typical values stated  
herein and/or any information regarding the application of the product, 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.  
In addition, any information given in this document is subject to customer’s compliance with its obligations stated  
in this document and any applicable legal requirements, norms and standards concerning customer’s products  
and any use of the product of Infineon Technologies in customer’s applications.  
The data contained in this document is exclusively intended for technically trained staff. It is the responsibility of  
customer’s technical departments to evaluate the suitability of the product for the intended application and the  
completeness of the product information given in this document with respect to such application.  
For further information on the product, technology, delivery terms and conditions and prices please contact your  
nearest Infineon Technologies office (www.infineon.com).  
WARNINGS  
Due to technical requirements products may contain dangerous substances. For information on the types in  
question please contact your nearest Infineon Technologies office.  
Except as otherwise explicitly approved by Infineon Technologies in a written document signed by authorized  
representatives of Infineon Technologies, Infineon Technologies’ products may not be used in any applications  
where a failure of the product or any consequences of the use thereof can reasonably be expected to result in  
personal injury.  
27  
2016-1-18  

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