LX1801ILQ

LX1801ILQ Datasheet

LX1801

Part	Datasheet
LX1801ILQ	LX1801ILQ (pdf)

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LX1801 SMBus to Analog & Digital System Interface PRODUCTION DATA SHEET .COM KEY FEATURES The LX1801 is a SMBus controlled In addition to its SMBus interface, Fully Compliant to Standard dimming interface for CCFL inverters. the LX1801 contains an eight bit ADC, SMBus Specifications It complies with the Dell Inc. M07 seven 8 bit registers, three 8 bit DAC’s, specification for Notebook backlight a multiplier, and other special circuits inverters. that process its analog voltage output. I2C Bus Compatible 8 bit Resolution ±10 LSB Accuracy One 8 bit ADC The LX1801 processes 3 brightness The LX1801 controls inverter on/off control inputs, one each from the and monitors and reports lamp status SMBus, an ambient light sensor, and a and inverter faults in real time. separate system side PWM signal and The LX1801 is available in the 16 generates an analog output signal that lead 3 x 3mm MLPQ package. drives the dimming circuitry of a CCFL inverter controller. Five e different brightness control modes are supported which include Intel DPST display power saving technology. t IMPORTANT For the most current data, consult MICROSEMI’s website: le 5V LPX1a9r7t2 PRODUCT HIGHLIGHT so I/O CONN SMB_DAT SMB_CLK ObINV_PWM LX1801 ALS_IN ADR0 V_BOT VREF_IN PWM_IN Part VDD VSS OVR_CUR FLT_DLY LMP_ON EN_OUT LMP_C BRITE_OUT Three 8 bit DAC’s SMBus Address Strap for 2 Selectable Addresses External Reference Inputs Set

PDF Datasheet Preview

LX1801

SMBus to Analog & Digital System Interface

PRODUCTION DATA SHEET
.COM

KEY FEATURES

The LX1801 is a SMBus controlled In addition to its SMBus interface,

Fully Compliant to Standard
dimming interface for CCFL inverters. the LX1801 contains an eight bit ADC,

SMBus Specifications

It complies with the Dell Inc. M07 seven 8 bit registers, three 8 bit DAC’s,
specification for Notebook backlight a multiplier, and other special circuits
inverters.
that process its analog voltage output.

I2C Bus Compatible 8 bit Resolution ±10 LSB Accuracy One 8 bit ADC

The LX1801 processes 3 brightness The LX1801 controls inverter on/off control inputs, one each from the and monitors and reports lamp status SMBus, an ambient light sensor, and a and inverter faults in real time. separate system side PWM signal and The LX1801 is available in the 16 generates an analog output signal that lead 3 x 3mm MLPQ package. drives the dimming circuitry of a CCFL inverter controller. Five
e different brightness control modes are
supported which include Intel DPST display power saving technology.
t IMPORTANT For the most current data, consult MICROSEMI’s website:
le 5V

LPX1a9r7t2

PRODUCT HIGHLIGHT
so I/O

CONN

SMB_DAT SMB_CLK

ObINV_PWM

LX1801

ALS_IN

ADR0

V_BOT

VREF_IN

PWM_IN

Part

VDD VSS

OVR_CUR

FLT_DLY

LMP_ON

EN_OUT

LMP_C

BRITE_OUT

Three 8 bit DAC’s SMBus Address Strap for 2

Selectable Addresses External Reference Inputs Set

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Datasheet ID: LX1801ILQ 649010