Datasheet > IW7023

IW7023

更新时间： 2024-11-15 01:22:15

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描述
16-Channel LED Driver for LCD Panel Backlighting

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IW7023 数据手册

iW7023

16-Channel LED Driver for LCD Panel Backlighting

1.0 Features

2.0 Description

The iW7023 is a high efﬁciency driver for LEDs. It is designed

for use with mid-size LCD panels that use arrays of LEDs as

a backlight source. It is able to communicate with up to one

● 16-channel LED driver, 60V (max) per channel

● V_IN: 9V to 28V

● Fully-integrated current-sink FETs with minimum external step-up or step-down PWM DC-DC converter to

external components

drive up to 16 separate strings of multiple series-connected

LEDs.

● Two dynamic external boost or buck controller interfaces

to optimize system power efﬁciency

The iW7023 features dynamic output voltage control, which

automatically chooses the lowest active LED source voltage

to adjust the feedback voltage of a step-up or step-down

converter. Through this function, the iW7023 is able to

dynamically adjust the output voltage of up to two external

step-up or step-down converters to optimize the system

power efﬁciency.

● Patented BroadLED™ digital adaptive switch mode

technology for high current matching at maximum

efﬁciency

Channel-to-channel matching accuracy ±2%

Enables use of cheaper, loosely binned LED arrays

for lower BOM cost

The iW7023 also provides 16 constant current sinks with

maximum ±2% current matching. The LED PWM dimming

can be adjusted dynamically through a high bandwidth SPI

interface, which provides users ﬂexibility to control the light

intensity of LEDs. In addition, users can provide versatile

conﬁgurations of the iW7023 through SPI interface registers.

● High-speed PWM dimming via SPI interface

High-bandwidth PWM-based dynamic local dimming

PLL-locked VSYNC synchronized PWM

Dimming range: 1% to 99.9%, 12-bit resolution

The iW7023 can maintain very high efﬁciency even with the

existence of LED channel total forward voltage mismatch,

with the proprietary digital power management and patent

pending adaptive switch mode LED current regulation

technology.

Dimming frequency support for NTSC, PAL and 3D

game modes with 5-bit programmability in normal

mode (controlled by SPI dimming interface)

● Direct and unsynchronized dimming via external PWM

● Per-channel current

The iW7023 has multiple features to protect the LED

channels from fault conditions, and these protections are

LED PWM cycle-by-cycle based to ensure system reliability

and provide consistent operation.

Up to 150mA average

Up to 240mA peak

● Comprehensive protection features:

3.0 Applications

● Direct & Segment-Edge LED Backlit LCD TV

● Edge Type global dimming LED backlit LCD TV

● Medical, Industrial Monitors and Public Displays

LED open and short-circuit fault protection

Over-temperature shutdown

● 48-lead QFN-7m-48L package

iW7023

Rev. 1.0

Datasheet

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中文翻译

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与IW7023相关器件

型号	品牌	获取价格	描述	数据表
IW7023-00-QFN4	DIALOG	获取价格	16-Channel LED Driver for LCD Panel Backlighting
iW7027	RENESAS	获取价格	16-Channel, External Current Sinks LED Driver with Patented 2-pin Sensing to Protect Again
IW7032	DIALOG	获取价格	32-Channel LED Driver for LCD Panel Backlighting
IW7032-00-TQ1	DIALOG	获取价格	32-Channel LED Driver for LCD Panel Backlighting
iW7038	RENESAS	获取价格	High Precision, 16-Channel LED Backlighting Driver with Integrated Current Sinks for High
iW7039	RENESAS	获取价格	High Precision, 32-Channel LED Backlighting Driver with Integrated Current Sinks for High
iW709	RENESAS	获取价格	Secondary-Side USB Power Delivery 3.0 Interface IC Integrated with Synchronous Rectifier C
iW760	RENESAS	获取价格	Secondary-Side USB Power Delivery 3.0 Interface IC Integrated with Synchronous Rectifier C
iW765	RENESAS	获取价格	Zero Standby Power Secondary-Side USB Power Delivery 3.1 Interface IC Integrated with Sync
IW-8/100MHZ	KOA	获取价格	Ferrite Bead, 1 Function(s),

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