FAN7548G Fairchild Semiconductor, FAN7548G Datasheet
FAN7548G
Manufacturer Part Number
FAN7548G
Description
Dual LCD Back Light Inverter Drive IC
Manufacturer
Fairchild Semiconductor
Datasheet
1.FAN7548G.pdf
(12 pages)
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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FAN7548GX
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
Features
• Backlight Lamp Ballast and Soft Dimming
• Reduce the Number of Components
• Wide Range Operating Voltage 9-30V
• Precision Voltage Reference Trimmed to 3.4%
• Low Standby Current (Typ. 150uA)
• Soft Start Function
• Dual PWM Control
• Analog & Burst Dimming Function
• P-Channel MOSFET Drive
• Open Lamp Regulation(OLR)
• Open Lamp Protection(OLP)
• Buck+Royer Topology
• 20 SSOP
©2003 Fairchild Semiconductor Corporation
FAN7548
FAN7548
Dual LCD Back Light Inverter Drive IC
Dual LCD Back Light Inverter Drive IC
FAN7548
FAN7548
Dual LCD Back Light Inverter Drive IC
Dual LCD Back Light Inverter Drive IC
Description
The FAN7548 provides the necessary circuit blocks to
implement a highly efficient CCFL backlight power supply
in a small footpirnt 20 SSOP package. The device features
two control stages for operating independent resonant tanks
for multi-lamp designs.
External parts count is minimized and system cost is reduced
by integration such features as a feedback controlled PWM
driver stage, the soft start, the open lamp regulation, the open
lamp protection, the UVLO, and the self-synchronization
circuitry between the buck and Royer stages. It includes an
internal shunt regulator, allowing it to operate with input
voltage from 9 to 30V. It supports analog and burst dimming
modes of operation. It providees the open lamp regulation,
and the open lamp protection.
20-SSOP
1
www.fairchildsemi.com
Rev. 1.0.0
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