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KB3386

Features: `Output Current up to 400mA`Up to 94% Efficiency in Torch Mode`Automatic Softstart Limits Inrush Current`Adjustable FLASH Mode`x1 and x2 Automatic Modes for High Efficiency`Minimum External Components: No Inductors`High Frequency Operation: 2.4 MHz`Low 50mV Reference for low Loss Sensing...

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SeekIC No. : 004384109 Detail

KB3386: Features: `Output Current up to 400mA`Up to 94% Efficiency in Torch Mode`Automatic Softstart Limits Inrush Current`Adjustable FLASH Mode`x1 and x2 Automatic Modes for High Efficiency`Minimum Externa...

KB3386 Data Sheet

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Part Number:
KB3386
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: 2024/11/23

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Product Details

Description



Features:

` Output Current up to 400mA
` Up to 94% Efficiency in Torch Mode
` Automatic Softstart Limits Inrush Current
` Adjustable FLASH Mode
` x1 and x2 Automatic Modes for High Efficiency
` Minimum External Components: No Inductors
` High Frequency Operation: 2.4 MHz
` Low 50mV Reference for low Loss Sensing
` 1A Shutdown Current
` PWM Dimming Control
` Automatic Switchover Between Buck/Boost
` Overvoltage Protection on Output
` Overcurrent/Temerature Protection
` Low Ripple and EMI
` Space Saving 10-pin 3mm x 3mm DFN Pckage




Application

· White LED Torch/Flash for Cell Phones, DSCs, and Camcorders
·Generic Lighting/Flash/Strobe Applications
· White LED Backlighting


Pinout

Connection Diagram


Specifications

VIN , VOUT ..............................................-0.3V to 6V
Output Current Pulse (Flash) ........................ 500mA
Output Current Continuous (Torch) .............. 200mA
Storage Temperature ..................... -65 to +150
Operating Temperature .....................-40 to +85
VEN ........................................................ ZeroV to 7V
3x3 10 DFN ......................................JA = 57.1/W
ESD Rating. ................................................ 2kV HBM


Description

The KB3386 is a current regulated charge pump ideal for powering high brightness LEDs for camera flash applications. The charge pump can be set to regulate two current levels for FLASH and TORCH modes. The KB3386 automatically switches modes between step-up and step-down ensuring that LED current does not depend on the forward voltage. A low current sense reference voltage (50mV) allows the use of small 0603 current sensing resistors. The KB3386 is . offered in 10-pin DFN package.




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