RN5T651 Series

Data Sheet
Data Sheet
Rev. 3.4 (2.82MB)
Charge-Pump for White LED and Power Supply
RN5T651 contains constant frequency charge pump to optimize for white LED application, step-down DC/DC converter and two low-noise LDOs. Output enable/disable, LEDs current setting and LDO output voltage setting are individually controllable through I2C.
Power Supply Function
  ・Step-down DC/DC converter × 1 (ON/OFF programmable)
・LDO × 2 (ON/OFF programmable)
・Over current Protection (ALL Regulators) and thermal shutdown
White LED Charge Pump
  ・Current capability: All currents capability 450mA
・Flash at 300mA max.
・Four Main LEDs at 25mA max.
・Two Sub LEDs 25mA max.
I2C-Bus (Max 400kHz)
  ・Address = 12h
・ON/OFF control
・Individual LEDs current value setting
・Individual LDOs voltage value setting

Others
  ・Soft-start circuit
・Short-circuit circuit, open-circuit and Thermal Protection
Package
  ・28pin Thin QFN package (Body size: 4 x 4 x 0.8mm)
Process
  ・CMOS process

  • ・Wireless Handset
  • ・MP3 players, PDA
  • ・Digital Still Cameras
  • ・Portable GPS
Data Sheet
(PDF) 		Package Info.
(PDF)
RN5T651 Series
Rev. 3.4 (2.82MB) 		QFN28

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