FAN7930M Fairchild Semiconductor, FAN7930M Datasheet - Page 16

• Manufacturer Part Number: FAN7930M
• Description: IC POWER FACTOR CORR CTRLR 8SOIC
• Manufacturer: Fairchild Semiconductor

Specifications of FAN7930M

• Mode: Critical Conduction (CRM)
• Current - Startup: 120µA
• Voltage - Supply: 13 V ~ 20 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Switching Frequency: 300 KHz
• Maximum Power Dissipation: 195 W
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency - Switching: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

© 2010 Fairchild Semiconductor Corporation
FAN7930 • Rev. 1.0.1
live again. When AC input voltage is live again, high
V
put on the MOSFET and diode. To protect against this,
FAN7930 internally checks if the input AC voltage
exists. If input does not exist, soft-start is reset and
waits until AC input is live again. Soft-start manages the
turn-on time for smooth operation when it detects AC
input is applied again and applies less voltage and
current stress on startup.
COMP
Figure 40.
allows high switching current and more stress is
Operation without Input Voltage
Absent Circuit
16
10. Current Sense: The MOSFET current is sensed
using an external sensing resistor for the over-current
protection. If the CS pin voltage is higher than 0.8V, the
over-current
protection signal. An internal RC filter of 40kΩ and 8pF
is included to filter switching noise.
11. Gate Driver Output: FAN7930 contains a single
totem-pole output stage designed for a direct drive of
the power MOSFET. The drive output is capable of up
to +500/-800mA peak current with a typical rise and fall
time of 50ns with 1nF load. The output voltage is
clamped to 13V to protect the MOSFET gate even if the
V
CC
voltage is higher than 13V.
Figure 41.
protection
Operation with Input Voltage
Absent Circuit
comparator
generates
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