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Electronic Ballast Control IC
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General Description
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The FAN7710, developed using Fairchild’s unique high-voltage
process and system-in-package (SiP) concept, is
a ballast control integrated circuit (IC) for a compact
fluorescent lamp (CFL). The FAN7710 controls internal
high-voltage stress and delivers 20W to the lamp at
310VDC voltage. FAN7710 incorporates a preheating /
ignition function, controlled by an user-selected external
capacitor, to increase lamp life. The FAN7710 detects
switch operation from after ignition-mode through an
internal active Zero-Voltage Switching (ZVS) control
circuit. This control scheme enables the FAN7710 to
detect an open-lamp condition, without the expense of
external circuitry, and prevents stress on MOSFETs. The
high-side driver built into the FAN7710 has a common-mode
noise cancellation circuit that provides robust
operation against high-dv/dt noise intrusion.
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Features
- Integrated Half-Bridge MOSFET
- Floating Channel for Bootstrap Operation up to +550V.
- Low Start-up and Operating Current: 120µA, 2.6mA
- Under-Voltage Lockout with 1.8V of Hysteresis
- Adjustable Run Frequency and Preheat Time
- Internal Active ZVS Control
- Internal Protection Function (No Lamp)
- Internal Clamping Zener Diode
- High Accuracy Oscillator
- Soft-Start Functionality
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Applications
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Compact Flouresent Lamp Ballast
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Datasheet
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Product Status/Pricing/Packaging 
* Fairchild 1,000 piece Budgetary Pricing
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| ** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples |
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Qualification Support
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