MP4603 – WHITE LED DRIVER FOR LARGE LCD TV BACKLIGHTS

MP4603 Rev. 1.0

www.MonolithicPower.com

5

4/27/2012

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© 2012 MPS. All Rights Reserved.MP4603

noted.

Parameters

Symbol Condition

Min

Typ

Max

Units

Dim Gate Driver Sourcing Current

I

DGD+

V

-25

mA

Dim Gate Driver Sinking Current

I

DGD-

V

DGD

–V

SS

=10V,

V

PWM

=1.5V

45

mA

LED Open OV Threshold

V

OVPTH

1.2

V

LED Short Threshold for Immediate

Latch-Off

V

FBS

600

mV

LED Short Delay for Latch-Off

τ

DFBS

300mV < V

FBS

< 600mV

450

μs

Thermal Shutdown

(5)

150

°C

Thermal Shutdown Hysteresis

(5)

20

°C

Note:

5) Guaranteed by design.