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G5119

Features: Driving Up to 4 LEDsAuto Trigger/Release OVP Function (G5115/G5119)Input Voltage Range: 1.7V ~ 6.5VPrecise Dimming Control Using PWM Signal50A No Switching CurrentInternal 18V Switch With 0.8 Rds(on)Soft Start Function IncludedUp to 85% EfficiencyApplicationWhite LED Backlight Display fo...

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SeekIC No. : 004346355 Detail

G5119: Features: Driving Up to 4 LEDsAuto Trigger/Release OVP Function (G5115/G5119)Input Voltage Range: 1.7V ~ 6.5VPrecise Dimming Control Using PWM Signal50A No Switching CurrentInternal 18V Switch With ...

G5119 Data Sheet

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Part Number:
G5119
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:

Driving Up to 4 LEDs
Auto Trigger/Release OVP Function (G5115/G5119)
Input Voltage Range: 1.7V ~ 6.5V
Precise Dimming Control Using PWM Signal
50A No Switching Current
Internal 18V Switch With 0.8 Rds(on)
Soft Start Function Included
Up to 85% Efficiency


Application

White LED Backlight Display for PDA
Pocket PC
Smart Phones
Handheld Devices
Cellular Phones


Pinout

Connection Diagram


Specifications

SW, OVP to GND..............-0.3V to +18V
VCC, SHDN to GND..............................-0.3V to +7V
FB to GND............................................-0.3V to VCC
Operating Temperature..........-40 to 85
Junction Temperature ..........................................125
Storage Temperature...................-65 to 150
Reflow Temperature (soldering, 10sec)........260


Description

The G5115/G5117/G5119 are high efficiency boost converters with constant current output that drives up to 4 white LEDs.

The continuous LED current of G5115/G5117/G5119 is set with the FB pin regulated voltage across an external sense resistor (Rs) connected from that pin to ground. A dimming PWM waveform to SHDN pin controls LED average current proportional to its duty makes the brightness of LEDs also proportional to the duty.

Low FB regulation voltage and low switch of G5115/G5117/G5119 turned on resistance result in high converting efficiency from wide battery voltage range to high LED series voltage.  An over-voltage protection prevents device damage while LEDs is open. G5115/G5117/G5119 are easy to release protection state by just put the load path closed.




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