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| ICE2QR1765G_14 Datasheet, PDF (15/27 Pages) Infineon Technologies AG – Off-Line SMPS Quasi-Resonant PWM Controller with integrated 650V CoolMOS? and startup cell in DSO-16/12 | |||
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CoolSETâ¢Q1
ICE2QR1765G
Functional Description
the up/down counter will be set to 1 immediately after leaving Active Burst Mode. This is helpful to decrease the
output voltage undershoot.
Figure 9 Signals in Active Burst Mode
3.6
Protection Functions
The IC provides full protection functions. The following table summarizes these protection functions.
Table 3 Protection features
VCC Over-voltage
VCC Under-voltage
Over-load/Open Loop
Over-temperature
Output Over-voltage
Short Winding
Auto Restart Mode
Auto Restart Mode
Auto Restart Mode
Auto Restart Mode
Latched Off Mode
Latched Off Mode
During operation, the VCC voltage is continuously monitored. In case of an under-voltage or an over-voltage,
the IC is reset and the main power switch is then kept off. After the VCC voltage falls below the threshold
Data Sheet
15
V2.1, 2014-04-01
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