Datasheet SmartLED-III 17W LED Backlight Converter Part number: IN-53-xxx The information contained in this document has been carefully researched and is, to the best of our knowledge, accurate. However, we assume no liability for any product failures or damages, immediate or consequential, resulting from the use of the information provided herein. Our products are not intended for use in systems in which failures of product could result in personal injury. All trademarks mentioned herein are property of their respective owners. All specifications are subject to change without notice.

<S> DATA DISPLAY GROUP A FORTEC GROUP MEMBER 1. Overview SmartLED-III is a 17W output LED backlight converter able to drive up to four rails of highbrightness LEDs. The converter is highly configurable by software and thus can be adapted to a multitude of different applications. SmartLED-III is intended as a universal LED Converter to drive LCD panel backlight systems (LED rails) with easy configuration for low and mid quantity sales projects to have a cheaper and/or adaptable product as compared to Mitsubishi (TDK), PowerSystems, CCBR/CDS converter. To compete with these already available products,...

<S> DATA DISPLAY GROUP A FORTEC GROUP MEMBER 3. General Features • Input: 10 - 28V • Output: 9 - 40V, 30mA - 260mA per channel (rail), total power limited to approx. 17W • Control via analog voltage (0..3.3V or 0..5V) or PWM (100 .. 1000Hz) • Output PWM synchronized to input, sync signal or free-running with programmable frequency • I2C for ambient light sensor and temperature sensor(s) • Additional GPIOs for local control (pushbuttons, sensor pads or potentiometer) of brightness • Capability to connect multiple boards in a master-slave setup for high-power applications • Control input...

<S> DATA DISPLAY GROUP A FORTEC GROUP MEMBER o Channels can be programmed to different max. current levels o However, no different current levels possible at the same time o Control input - pin shared with sync input - is used to switch over between active channels with their respective current level Ambient Light Sensor • Support for ambient light sensor via I2C Temperature Sensor • Internal temperature sensor in controller on SmartLED-III. • External temperature Sensor(s) are supported via I2C. • Two I2C channels are available to allow connection of identical sensors (e.g. for identical sensors...

<S> DATA DISPLAY GROUP A FORTEC GROUP MEMBER Note (1) Within operating temperature range. Note (2) Permanent damage to the device may occur if maximum values are exceeded. Note (3) In the upper range of TOp total output power as well as the heat dissipation/cooling has to be checked. Forced airflow might be required. The diagram below shows the derating characteristic:

<S> DATA DISPLAY GROUP A FORTEC GROUP MEMBER 1) To use voltage control of dimming requires alternative firmware or configuration. Brightness control characteristics can be adapted on customer request. Please contact your sales partner for possible options. 2) To use external PWM control of dimming requires alternative firmware or configuration. Please refer to Ordering Information section. Leave VCONTRol unconnected, and apply PWM to VPWMIN. 3) Error Flag might be unavailable for very low dimming ratio (< 10%, TBD) 4) To use sync input requires alternative firmware. Please contact your sales...

<S> DATA DISPLAY GROUP A FORTEC GROUP MEMBER 8) Below 40mA SmartLED-III has lower precision about with ±20% tolerance. Higher precision could be achieved customized on project base on request. 9) Do not fall below that value to prevent flicker. 10) Use the Brightness Input / Output Transfer Characteristic feature of ChandlerRover for diming the brightness to 0nits with smooth transition and achieving the dimming range up to 1:6000@100Hz. 11) SmartLED monitors the LED strings to detect LED short-circuit and string open-circuit faults. When verified, all string faults force the ERROR flag and the...

<S> DATA DISPLAY GROUP A FORTEC GROUP MEMBER The mechanical layout is made similar to current SmartLED-II connector placement, but due to different connector usage and power stage layout, some changes are necessary.

<S> DATA DISPLAY GROUP A FORTEC GROUP MEMBER 9. Connectors and Switches The drawing above shows the input and output interfaces of the SmartLED-III. The design is implemented as a single printed circuit board. 9.1 Overview

<S> DATA DISPLAY GROUP A FORTEC GROUP MEMBER Connector used: DF13-14P-1.25H (20) (Hirose) Mating housing: DF13-14S-1.25C (Hirose) 1) To use voltage or PWM control of dimming requires alternative firmware. Please contact your sales partner for specific information about possible options. Pins 12 and 14 are connected internally but kept for backwards compatibility. 2) Error Flag might be unavailable for very low dimming ratio (< 10%, exact value TBD) 3) To use sync input or NVIS mode feature requires alternative firmware. Please contact your sales partner for possible options. 4) Output power...

<S> DATA DISPLAY GROUP A FORTEC GROUP MEMBER

<S> DATA DISPLAY GROUP A FORTEC GROUP MEMBER Datasheet Location: Connectors used: Mating housing: Function: Outputs can be paralleled using cable adapter or as an assembly option for high-current applications

<S> DATA DISPLAY GROUP A FORTEC GROUP MEMBER Notes: 1) Maximum current drawn 300mA 2) Pin function is software defined; contact your sales partner for possible options

<S> DATA DISPLAY GROUP A FORTEC GROUP MEMBER 9.4.3 Master/Slave Connector The master/slave connector is intended to connect and synchronise multiple SmartLED-III converters for high power applications. Additionally, the GPIO pin present on this connector may be used as an alternative enable input by configuration option. Location: CON8 Connector used: DF13-5P-1.25H (20) (Hirose) Notes: 1) 3,3V TTL/CMOS signal level.