Datasheet > iW7027

iW7027

更新时间： 2024-11-15 14:58:19

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
9页	666K
描述
16-Channel, External Current Sinks LED Driver with Patented 2-pin Sensing to Protect Against LED Shorts

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iW7027 数据手册

iW7027

16-Channel LED Driver for

LCD Panel Backlighting

1.0 Features

2.0 Description

The iW7027 is a versatile, 16-channel, high precision LED

backlight driver for medium to large size LCD display panels.

● 16ch LED driver with external power MOSFET, with 5V

and 9-16V(Typ=12V) input supply voltage range

● Patented BroadLED™ adaptive switch mode

technology for high current matching at maximum

eﬃciency

The LED current sink MOSFETs are external, allowing

maximum ﬂexibility for diﬀerent current and voltage

conﬁgurations. Built-in safety features include over-

temperature shutdown, open and short LED detection.

Channel Current matching accuracy ±3%

Enables use of cheaper, loosely binned LED arrays

for lower BOM cost

High Speed SPI daisy-chain interface simpliﬁes the system

design when multiple IW7027s are used to support more

than 16 LED strings.

● Dynamic external Boost or Buck controller interface to

optimize system power eﬃciency

Scan mode provide ﬂexible PWM mode to reduce motion

blur.

Dual interface controls one or two DC-DC converters

Programmable LED channel assignment for individual

DC-DC converters

Internal PLL simpliﬁes the system requirement with only

Vsync signal needed.

● High speed SPI interface and SPI daisy-chain support

● PWM-generator clock

It uses Dialog’s patented 2-pin sensing technology to realize

LED short detection.

Internal OSC

3.0 Applications

● LED backlighting for LCD-TV sets and LCD monitors

External clock (HSYNC)

PLL-synthesized clock from external signal

● Industry only Patented Gate Sensing to detect channel

short without external component

● Dimming control

12-bit PWM dimming range from 0% to 99.9%

Supports direct PWM dimming control

● Supports Scan Mode

● Supports VSYNC frequency from 50Hz to 480Hz.

● Programmable external MOS driver slew rate

● Integrated OTP with 2 times programmable access

With ECC for one bit error

Two bit OTP error fault generation

● Programmable burn-in mode and direct PWM mode

● Supports diﬀerent channel delay in all VSYNC range

setting for every channel

● Comprehensive protection features

LED open fault detection

Programmable LED short level fault detection

Over-temperature shutdown

Over two OTP bits error shutdown

Microcontroller interruption interface

Rev. 1.1

30-Jan-2022

Product Summary

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与iW7027相关器件

型号	品牌	获取价格	描述	数据表
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),
iW873	RENESAS	获取价格	Secondary-Side Synchronous Rectifier Controller with Integrated 60V MOSFET
IW-9/100MHZ	KOA	获取价格	Ferrite Bead, 1 Function(s),

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