The XRP6840 is a controlled-current dual-cell supercapacitor charger and high power LED driver. Operating from a standard lithium-ion battery, it provides up to 4.3A of programmable Flash LED current and up to 600mA and 5.6V of programmable supercapacitor charging current and voltage.

Architectured around a 2.4MHz tri-mode 1x, 1.5x and 2x charge pump, the XRP6840 charges the stacked supercapacitor to the programmed output voltage with no more than 600mA drawn from the battery. While charging, an internal active balance circuitry insures matching of the stacked capacitors’ voltages.

A standard 2-line I2C serial interface allows the dynamic programming of LED currents in torch and flash modes, flash timeout, channel enable, gain control, capacitor charge voltage, and enable. The XRP6840 comes in a 2 and 3 channel version supporting respectively 440mA/2.15A per channel and 300mA/1.45A in torch/flash modes.


  • Programmable 4.3A Flash LED Driver
    • Torch and Flash Modes
    • 2 and 3 Channels Versions
  • Programmable Supercapacitor Charger
    • 600mA Adjustable Charging Current
    • Programmable Supercapacitor Voltage
    • In-rush Current Control
    • Active Voltage Balance Control
  • Tri-mode Charge Pump Architecture
    • 1x, 1.5x, 2x Operation Modes
    • 2.4MHz Switching Frequency
  • I²C Serial Interface
  • Thermal, Over Current and Output Short Protection
  • LED Short Detection
  • “Green”/Halogen Free 20-pin 4mmx4mm TQFN package
4.3A Supercapacitor Flash LED Driver with I²C

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Mfr Part#: XRP6840AILB-F
Mounting Method: Surface Mount
Package Style: TQFN-20
Available In: BAG

XRP6840 Series 4.3 A 5.5 V 3 Channel Supercapacitor Flash LED Driver - TQFN-20


Technical Specifications:

Output Current per Channel: Supply Voltage: Switching Frequency-Max:
4.3 A 2.7 to 5.5 V 2.4 MHz
See the Download Center for a complete library of supporting documentation.


$1.45 USD (each)
300+ $1.45 (Save 13%)

Other quantities & packages (Reels) may also be available


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Multiple of: 50
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