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FAN5610

Features: • LED Driver for 4 Parallel-connected LEDs• Low Voltage Drop (<350mV) to Support Direct Li-ion Applications with Low VF LEDs• Independent Control Loop for Each LED• Regulated, Matched Constant Current in LEDs• No External Components• No EMI, No Swit...

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SeekIC No. : 004340431 Detail

FAN5610: Features: • LED Driver for 4 Parallel-connected LEDs• Low Voltage Drop (<350mV) to Support Direct Li-ion Applications with Low VF LEDs• Independent Control Loop for Each LEDR...

FAN5610 Data Sheet

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Part Number:
FAN5610
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

• LED Driver for 4 Parallel-connected LEDs
• Low Voltage Drop (<350mV) to Support Direct Li-ion Applications with Low VF LEDs
• Independent Control Loop for Each LED
• Regulated, Matched Constant Current in LEDs
• No External Components
• No EMI, No Switching Noise
• Built-in DAC for Digital and PWM Brightness Control
• Up to 91% Maximum Efficiency
• Up to 84mA (21mA/LED) Bias Current
• 2.7V to 5.5V Input Voltage Range
• ICC< 1A in Shutdown Mode
• 3mmX3mm MLP-8 Package


Application

• Cell Phones
• Handheld Computers
• PDA, DSC, MP3 Players
• LCD Display Modules
• Keyboard Backlight
• LED Displays


Pinout

Connection Diagram


Specifications

Parameter Min. Max. Unit
VIN,IN A/IN B Voltage to GND -0.3 6.0 V
Lead Soldering Temperature (10 seconds)   300 °C
Operating Junction Temperature Range   150 °C
Storage Temperature -55 150 °C
Electrostatic Discharge Protection Level (Note1) HBM 4   kV
CDM 2  



Description

The FAN5610 generates matched current source drives for a maximum of four LEDs. Since each LED current source has
its own self-regulating loop, precise current matching is maintained even if there is a substantial forward voltage spread among the LEDs. LED pre-selection therefore is not required. In order to minimize voltage drop, and maximize efficiency, the value of the internal current sense resistors connected in series with the LEDs is very low (10 ). This is an important consideration for direct DC-driven white LEDs in battery-powered systems.

The FAN5610 LEDs' current can be set to 0mA (OFF Mode), 7mA, 14mA, and 21mA with a built-in two-bit digital-to-analog converter. Customized current settings can also be used. When the control bits are set to zero, the internal circuitry is disabled and the quiescent current drops below 1A.

Both digital input lines (A, B) FAN5610 can be pulse-width-modulated (PWM). Using PWM, any value of average LED current can be obtained within the 1 to 20 mA range. The FAN5610 is available in an 8-lead 3X3 MLP package.




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