FAN7548

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 &am...

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FAN7548 Picture
SeekIC No. : 004340493 Detail

FAN7548: 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%• L...

floor Price/Ceiling Price

Part Number:
FAN7548
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Month Sales

268 Transactions

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evaluate  (4.8 stars)

Upload time: 2024/3/28

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Product Details

Description



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



Pinout

  Connection Diagram


Specifications

Characteristics Symbol Value Unit
Supply Voltage VCC 6~30 V
Operating Temperature Range Topr -25 ~ 85 °C
Storage Temperature Range Tstg -65 ~ 150 °C
Thermal Resistance Junction-Air (Note1,2) RJA 112 °C/W
Power Dissipation Pd 1.1 W
Note:
1. Thermal resistance test board
    Size: 76.2mm * 114.3mm * 1.6mm(1S0P)
    JEDEC standard: JESD51-3, JESD51-7
2. Assume no ambient airflow



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.




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