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LM2795 Supply Datasheet PDF

Current Regulated Switched Capacitor LED Supply

Current Regulated Switched Capacitor LED Supply

 

 

 

Part Number LM2795
Description Current Regulated Switched Capacitor LED Supply
Feature LM2794, LM2795 www.
ti.
com SNVS168L – JANUARY 2002 – REVISED MAY 2013 LM2 794 /LM2795 Current Regulated Switched Capacitor LED Supply with Analog and PW M Brightness Control Check for Samples: LM2794, LM2795 FEATURES 1
•2 Regula ted Current Sources with ±0.
5% Matchin g between any Two Outputs
• High Effi ciency 3/2 Boost Function
• Drives On e, Two, Three or four White LEDs
• 2.
7V to 5.
5V Input Voltage
• Up to 80mA Output Current
• Analog Brightness C ontrol
• Active-Low or High Shutdown Input ('94/95)
• Very Small Solution Size and no Inductor
• 2.
3µA (typ.
) Shutdown Current
• 325kHz Switching F r .
Manufacture Texas Instruments
Datasheet
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LM2795

 

 

 


 

 

 

Part Number LM27953
Description White LED Driver
Feature November 2004 www.
DataSheet4U.
com LM279 53 White LED Driver with Four LED Curre nt Sinks and 3/2x Switched Capacitor Bo ost LM27953 White LED Driver with Four LED Current Sinks and 3/2x Switched Ca pacitor Boost General Description The L M27953 is a charge-pump-based white-LED driver that is ideal for mobile phone display backlighting.
It is intended to drive 4 LEDs for a main phone display backlight.
Regulated internal current s ources deliver excellent current and br ightness matching in all LEDs.
The LED driver current sinks can be used to bac klight a main phone display with up to 4 LEDs.
The lo .
Manufacture National Semiconductor
Datasheet
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LM27953

 

 

 


 

 

 

Part Number LM27952
Description white-LED Driver
Feature LM27952 www.
ti.
com SNVS364B – MAY 20 05 – REVISED MAY 2013 LM27952 White LED Adaptive 1.
5X/1X Switched Capacitor Current Driver Check for Samples: LM27 952 FEATURES 1
•2 Drives up to 4 LED s with up to 30mA each
• Regulated cu rrent sources with 0.
2%(typ.
) matching
• 3/2x, 1x Gain transition based on L ED VF
• Peak Efficiency Over 85%
• Input Voltage Range: 3.
0V to 5.
5V
• P WM Brightness Control
• Very Small So lution Size - NO INDUCTOR
• Fixed 750 kHz Switching Frequency
• <1µA Shutd own Current
• 14-pin WSON Package: 4.
0mm X 3.
0mm X 0.
8mm APPLICATIONS
• W hite LED Display Backlights
• White L ED K .
Manufacture Texas Instruments
Datasheet
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LM27952

 

 

 

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