MBI5024 데이터 시트보기 (PDF) - Unspecified

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MBI5024

16-bit Constant Current LED Sink Driver

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MBI5024

Load Supply Voltage (VLED)

MBI5024 are designed to operate with VDS ranging from 0.4V to 0.8V (depending on IOUT=3~45mA) considering the

package power dissipating limits. VDS may be higher enough to make PD(act) >PD(max) when VLED=5V and

VDS=VLED–VF, in which VLED is the load supply voltage. In this case, it is recommended to use the lowest possible

supply voltage or to set an external voltage reducer, VDROP.

A voltage reducer lets VDS=(VLED–VF)–VDROP.

Resistors or Zener diode can be used in the applications as shown in the following figures.

VLED

Voltage Supply

VDrop

VF

VDS

VDrop

Voltage Supply(VLED)

VF

VDS

MBI5024

MBI5024

Switching Noise Reduction

LED driver ICs are frequently used in switch-mode applications which always behave with switching noise due to

the parasitic inductance on PCB. To eliminate switching noise, refer to “Application Note for 8-bit and 16-bit LED

Drivers- Overshoot”.

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April 2008, VA.02

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