IR1168SPBF International Rectifier, IR1168SPBF Datasheet - Page 14

• Manufacturer Part Number: IR1168SPBF
• Description: IC MOSFET DRIVER DUAL 200V 8SOIC
• Manufacturer: International Rectifier

Specifications of IR1168SPBF

• Configuration: Half Bridge
• Input Type: Non-Inverting
• Delay Time: 60ns
• Current - Peak: 1A
• Number Of Configurations: 1
• Number Of Outputs: 2
• Voltage - Supply: 8.6 V ~ 18 V
• Operating Temperature: -25°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: *
• Part Status: Active and Preferred
• Package: 8-Pin SOIC(NB)
• Circuit: Switching Regulator Controller
• Topology: Resonant Half-Bridge
• Current Mode: Discontinuous / Critical
• Vcc (min): 8.6
• Vcc (max): 18
• Vout (max): 200
• Iout (a): +1 / -4
• Switch Freq (khz): up to 500kHz
• Vgate Clamp (v): 10.7
• Enable Pin: No
• Automatic Mot Protection: No
• Pbf: PbF Option Available
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• High Side Voltage - Max (bootstrap): -
• Lead Free Status / Rohs Status: RoHS Compliant part

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Since the device currents are sinusoidal here, the device VDS will cross the V
dV/dt. Once the threshold is crossed, the current will start flowing again through the body diode, causing the VDS
voltage to jump negative. Depending on the amount of residual current, VDS may once again trigger the turn-on
threshold; hence, VTH2 is blanked for a time duration t
crosses the positive reset threshold VTH3, t
shown below.
Figure 2: Secondary currents and voltages
Gate Drive
Blanking
V
V
V
I
DS
TH1
TH2
DS
T1
BLANK
MOT
is terminated and the IC is ready for next conduction cycle as
14
T2
BLANK
after VTH1 is triggered. When the device VDS
V
TH3
t
BLANK
time
TH1
threshold with a relatively low
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