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RT8532GQW Datasheet (PDF) - Richtek Technology Corporation

RT8532GQW Datasheet PDF - Richtek Technology Corporation
Part # RT8532GQW
Download  RT8532GQW Download

File Size   252.92 Kbytes
Page   14 Pages
Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation
Description 6-String 43V White LED Driver with Boost Regulator

RT8532GQW Datasheet (PDF)

Go To PDF Page Download Datasheet
RT8532GQW Datasheet PDF - Richtek Technology Corporation

Part # RT8532GQW
Download  RT8532GQW Click to download

File Size   252.92 Kbytes
Page   14 Pages
Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation
Description 6-String 43V White LED Driver with Boost Regulator

RT8532GQW Datasheet (HTML) - Richtek Technology Corporation

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RT8532GQW Product details

Description
The RT8532 is a high efficiency white LED driver. It is
designed for LCD panel that employs a LED array as the
lighting source. An integrated switch current mode Boost
controller drives six strings in parallel and supports up to
10 pieces of LEDs per string. The internal current sinks
support maximum ±2% current matching for excellent
brightness uniformity in each LED string. To provide enough
headroom for the operating of current sink, the Boost
controller monitors the minimum voltage of feedback pins
and regulates an optimized output voltage for power
efficiency.
The RT8532 has wide input voltage range from 2.5V to
24V and provides adjustable 5mA to 50mA LED current.
The internal 200mΩ, 43V power switch with current-mode
control provides cycle-by-cycle over current protection.
The RT8532 also integrates PWM and analog dimming
functions for accurate LED current control. The input PWM
dimming frequency can be operated operate from 100Hz
to 20kHz without any inrush current in LED.
The RT8532 is available in WQFN-20L 3x3 package.

Features
Wide Input Voltage : VIN 2.5V to 24V
High Output Voltage : VOUT up to 43V
Programmable Full Channel Current from 5mA to
50mA and Matched to 2%
Channel Current Regulation with ±3% Accuracy
Dimming Controls
 Direct PWM Dimming up to 20kHz and Minimum
On-Time to 500ns
 PWM to Mixed Analog and PWM Dimming up to
20kHz with Maximum 9 bit Resolution
Built-In Soft Start to Prevent Inrush Current without
External Capacitor
Disconnects LED in Shutdown
Protection
 Strings Open Detection
 Current Limit Protection
 Programmable Over Voltage Protection
 Over Temperature Protection
20-Lead WQFN Package
RoHS Compliant and Halogen Free

Applications
UMPC and Notebook Computer Backlight




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