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High Precision, 32-Channel LED Backlighting Driver with Integrated Current Sinks for High Dynamic Range (HDR) LCD Displays

封装信息

CAD 模型:View CAD Model
Pkg. Type:QFN-48L
Pkg. Code:
Lead Count (#):48
Pkg. Dimensions (mm):7 x 7
Pitch (mm):0.5

环境和出口类别

Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090

产品属性

Lead Count (#)48
Carrier TypeTape & Reel
Moisture Sensitivity Level (MSL)3
Pb (Lead) FreeYes
Advanced FeaturesAnyMode, BroadLED, Head/Tail/Center PWM Modulation
Backlight for LCD Size (inches)29 - 85
Brightness ControlYes
Channels (#)32
Controller / IntegratedIntegrated
DC/DC Converter Interfaces (#)1
Dimming Resolution (bits)12
Fault SwitchNo
ILED Average (Max) (mA)66
ILED Peak (Max) (mA)66
Input Voltage (Max) (V)16
Input Voltage (Min) (V)4.5
Input Voltage Range (V)4.5 - 16
Integrated DiodeNo
InterfaceSPI
LED Current Accuracy (%)2.5
LED Driver Channels (#)32
LEDs (#)100
Operating Voltage Range (V)4.5 - 16
Output Current Max/Channel (mA)66
Parametric CategoryBacklight LED Drivers
Pass DeviceFET
Peak Efficiency (%)90
Pitch (mm)0.5
Pkg. Dimensions (mm)7 x 7
Pkg. TypeQFN-48L
Qty. per Reel (#)4000
Qualification LevelStandard
Supply Voltage (max) (V)65 - 65
Temp. Range (°C)-40 to +85°C
Topology [Rail 1]Inductor Boost
Total Current for DC/DC Lighting (mA)2112
已发布Yes

描述

The iW7039 LED driver for LCD backlighting integrates 32 precision current sinks with advanced digital control technology to improve brightness control in direct backlit, High Dynamic Range (HDR) displays. The digital control block uses Renesas' BroadLED™ adaptive switch technology, improving thermal performance by optimizing the voltage drop across each LED string while enabling precision matching with unbinned LEDs.

The iW7039 also uses Renesas' patented AnyMode™ dimming, which offers comprehensive, simple and flexible options to improve HDR display picture quality. It allows continuous PWM signals or very narrow PWM burst signals that are fully synchronized to the video frame at the same or higher frequency. The PWM duty cycle can be updated in each video frame and with user-configurable tail or head delays. This provides more options to reduce motion blur and improve the contrast ratio.

AnyMode dimming also helps reduce motion blur caused by the Human Visual System (HVS) by generating high intensity, short duration PWM pulses. This results in faster fade out and reduces the physiological afterimage effects of the HVS, important for automobile dashboard displays.