December 2007
FAN7535
PFC & Ballast Control IC
Features
PFC, Ballast Control, and Half-Bridge Driver in One IC
PFC Driver Current Capability: +500mA/-800mA
Critical Conduction Mode Control Type PFC
Internal Clamping Zener Diode (PFC): 23V
Under-Voltage Lockout with 3.5V of Hysteresis (PFC)
Internal Clamping Zener Diode (Ballast): 15V
Lower di/dt Gate Driver for Better Noise Immunity
Under-Voltage Lockout with 1.8V Hysteresis (Ballast)
Ballast Driver Current Capability: +350mA/-650mA
Programmable Preheat Time & Frequency
Programmable Run Frequency
Programmable Ignition Sweep Time
Internal Active ZVS Control
Internal Protection Function (Latch Mode)
Description
FAN7535 provides simple, high-performance, active
power factor correction (PFC), and ballast control. The
FAN7535 is optimized for all kinds of fluorescent lamps,
which require minimum board area and reduced
external components. The FAN7535 PFC control block
to reduce the input current THD lower than conventional
CRM boost PFC methods. An innovative Active Zero
Voltage Switching (AZVS) block reduces the swtiching
power loss. A dedicated timing section in the FAN7535
allows the user set the necessary parameters for proper
lamp preheat and ignition.
24-SOP
Applications
Fluorescent Lamp Ballast
Ordering Information
Part Number
FAN7535M
FAN7535MX
Package
24-SOP
Operating Temperature Range
-25°C ~ 125°C
All packages are lead free per JEDEC: J-STD-020B standard.
Packing Method
Tube
Tape & Reel
© 2007 Fairchild Semiconductor Corporation
FAN7535 Rev. 1.0.0
www.fairchildsemi.com