Purchase G5119, In-stock G5119 From SeekIC.
Part Number: G5119
Description: The G5115/G5117/G5119 are high efficiency boost converters with constant current output that drives up...
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G5119
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DataSheet
General Description
G5119 General 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 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 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. It is easy to release protection state by just put the load path closed.
G5119 Maximum Ratings
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
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
G5119 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
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
G5119 Typical Application
White LED Backlight Display for PDA
Pocket PC
Smart Phones
Handheld Devices
Cellular Phones
Pocket PC
Smart Phones
Handheld Devices
Cellular Phones
G5119 Connection Diagram
G5103
PDF/DataSheet Download
- Datasheet: G5103
- File Size: 295475 KB
- Manufacturer: GMT [Global Mixed-mode Technology Inc]
- Click here to Download
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The G5114/G5116/G5118 are high efficiency boost converters with constant current output that drives up to 8 white LEDs. The continuous LED current is set with the FB pin regulated voltage across an external sense resistor (Rs) connected from that pin to grou...
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G5115
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/G5119is set with the FB pin regulated voltage across an external sense resistor (Rs) connected f...
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