Ultra Low Power Bluetooth 5 System-On-Chip 1.62V to 3.6V 2Mbps 48-Pin HVQFN T/R

LED7708TR

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STMicroelectronics

16 CHANNELS X 85 MA LED DRIVER WITH BOOST CONTROLLER AND 4-WIRE SERIAL INTERFACE

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LED7708TR

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STMicroelectronics

16 CHANNELS X 85 MA LED DRIVER WITH BOOST CONTROLLER AND 4-WIRE SERIAL INTERFACE

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Description Specifications Series Pricing CAD Documents

Description

General part information

LED7708 Series

The STEVAL-ILL035V2 product evaluation board is an extension (daughterboard) of the STEVAL-ILL035V1 (motherboard) based on the LED7708 LED driver. It allows implementation of a daisy-chained configuration for applications requiring more than 16 channels.

The LED7708 is configured as slave on the STEVAL-ILL035V2, and as master on the STEVAL-ILL035V1.

The boost controller section is not used and the supply voltage for the LED strings is derived from the motherboard (STEVAL-ILL035V1, master) by extending the output voltage optimization through dedicated hand-shake signals. Additional daughterboards can be connected to a single motherboard to increase the number of channels. The brightness control of the LED strings and the fault management options are identical to the ones available for the STEVAL-ILL035V1 evaluation board. The evaluation board is intended as a solution for medium/large LCD panel backlight drivers, but is suitable for any application involving several LEDs arranged is strings (e.g. advertisement panels, signs, gaming, etc.).

Technical Specifications

Parameters and characteristics for this part

Specification	LED7708TR

Applications	Backlight
Current - Output / Channel	85 mA
Dimming	PWM
Frequency (Max)	1 MHz
Frequency (Min)	250 kHz
Internal Switch(s)	Yes
Mounting Type	Surface Mount
Number of Outputs	16
Operating Temperature (Max)	150 °C
Operating Temperature (Min)	-40 °C
Package / Case	48-VFQFN Exposed Pad
Package Length	7 mm
Package Name	48-VFQFPN
Package Width	7 mm
Topology	Step-Up (Boost)
Type	DC DC Controller
Voltage - Output	36 V
Voltage - Supply (Max)	36 V
Voltage - Supply (Min)	3.6 V

LED7708 Series

16 channels x 85 mA LED driver with boost controller and 4-wire serial interface

Part	Frequency (Max)	Frequency (Min)	Package / Case	Voltage - Supply (Max)	Mounting Type	Topology	Current - Output / Channel	Dimming	Operating Temperature (Min)	Operating Temperature (Max)	Applications	Voltage - Supply (Min)	Internal Switch(s)	Number of Outputs	Type	Package Width	Package Name	Package Length	Voltage - Output	Supplied Contents	Contents	Utilized IC / Part	Features	Voltage - Input (Maximum)	Voltage - Input (Minimum)
STMicroelectronics LED7708	1 MHz	250 kHz	48-VFQFN Exposed Pad	36 V	Surface Mount	Step-Up (Boost)	85 mA	PWM	-40 °C	150 °C	Backlight	3.6 V	Yes	16	DC DC Controller	7 mm	48-VFQFPN	7 mm	36 V
STMicroelectronics LED7708TR	1 MHz	250 kHz	48-VFQFN Exposed Pad	36 V	Surface Mount	Step-Up (Boost)	85 mA	PWM	-40 °C	150 °C	Backlight	3.6 V	Yes	16	DC DC Controller	7 mm	48-VFQFPN	7 mm	36 V
STMicroelectronics STEVAL-ILL035V2																				Board(s)	Board	LED7708	Dimmable	36 V	4.5 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Product Change Notice EN

Datasheet

LED7708TR | Datasheet