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System LED Drivers deliver 8kV ESD protection in ultra-small packages

04.26.2005
BD6061GUT、BD6063HFN

ROHM's BD6061GUT and BD6063HFN system LED drivers is ideal for the backlight LEDs used in compact LCDs in mobile equipment such as PDAs, DSCs, DVCs and can also be used as supplementary light as a flash in mobile phone cameras.
With the need to reduce the number of parts in mobile phones for more compact end products, ROHM has developed the BD6061GUT and BD6063HFN in CSP and HSON packages, respectively.
ROHM recently developed a synchronous rectification system-a system that carries out the rectification required in switching DC/DC using a PMOS transistor instead of a Schottky barrier diode-that reduces the number of external parts from 5 to 4.


BD6061GUT saves board space by 65%, while BD6063HFN saves 93%.


· Applications

This IC is ideal for PDAs, DSCs, DVCs, mobile phones and supplementary light for mobile phone camera flash.


· Series Features: BD6061GUT and BD6063HFN

  1. Compact package contributes to space-saving.
  2. The onboard functions, like LED lighting and brightness adjustment, are simple and allow a broad range of applications in all types of compact, mobile equipment.
  3. The element configuration and circuits has increased electrostatic resistance to 8kV for high reliability.
  4. The synchronous rectification system eliminates the need for an external Schottky barrier diode.
  5. With two package types, CSP (BD6061GUT) and HSON (BD6063HFN). PCB and flexible substrates are both available.

· Explanation of terms

  • Synchoronous rectification system
    This is a system that carries out the rectification required in switching DC/DC using a PMOS transistor instead of a Schottky barrier diode.
  • Electrostatic resistance
    This indicates the upper limit on external static electricity before the LSI is damaged or destroyed. Generally, higher values are better.
  • PCB (printed circuit board) substrate
    These are substrates made of a rigid substance called glass epoxy upon which copper or other foil is printed to make electrical circuits.
  • Flexible substrate
    These are substrates made of polyimide file or other soft material whose shape can be altered.