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ACT6359

Features: • High-Efficiency DC/DC WLED Bias Supply• Internal 40V, 0.55Ω Power MOSFET• Up to 10 WLEDs per String• 500mA Peak Current• Supports Analog and PWM LED Dimming• Integrated Over-Voltage Protection (OVP)• Thermal Shutdown• Cycle-by-Cycle...

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SeekIC No. : 004268024 Detail

ACT6359: Features: • High-Efficiency DC/DC WLED Bias Supply• Internal 40V, 0.55Ω Power MOSFET• Up to 10 WLEDs per String• 500mA Peak Current• Supports Analog and PWM LED D...

ACT6359 Data Sheet

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Part Number:
ACT6359
Supply Ability:
5000

Price Break

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

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Upload time: 2024/6/7

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Product Details

Description



Features:

• High-Efficiency DC/DC WLED Bias Supply
• Internal 40V, 0.55Ω Power MOSFET
• Up to 10 WLEDs per String
• 500mA Peak Current
• Supports Analog and PWM LED Dimming
• Integrated Over-Voltage Protection (OVP)
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Tiny SOT23-6 Package


Application

• TFT LCD Displays
• Smart Phones
• Portable Media Players
• GPS/Personal Navigation Devices


Specifications

PARAMETER VALUE UNIT
SW to G
IN, EN to G
FB, OV to G
Continuous SW Current
Junction to Ambient Thermal Resistance (JA)
Operating Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 10 sec)
Maximum Power Dissipation		 -0.3 to 42
-0.3 to 6
-0.3 to VIN + 0.3
Internally Limited
200
0.727
-40 to 150
-55 to 150
300		 V
V
V

°C/W
W
°C
°C
°C
 : Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may affect device reliability.


Description

The ACT6359 step-up DC/DC converter drives white LEDs with an externally programmable constant current. This device features an integrated, 40V power MOSFET that is capable of driving up to ten white LEDs in series, providing inherent current matching for uniform brightness. WLED brightness adjustment is easily achieved via simple external circuitry, which accepts either a PWM or an analog dimming control signal.

The ACT6359 features a variety of protection circuits, including integrated over voltage protection (OVP), cycle-by-cycle current limiting, and thermal shutdown protection circuitry.

The ACT6359 has a 500mA current limit, and is available in a small 6-pin SOT23-6 package.




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