LED7706 datasheet(1/31 Pages) STMICROELECTRONICS

部品番号	LED7706

部品情報	6-rows 30 mA LEDs driver with boost regulator for LCD panels backlight

PDF	31 Pages

Scroll/Zoom	100%

メーカー	STMICROELECTRONICS [STMicroelectronics]

ホームページ	http://www.st.com

Logo

1 / 31 page

February 2008

Rev 1

1/31

31

LED7706

6-rows 30 mA LEDs driver with boost regulator

for LCD panels backlight

Features

■ Boost section

– 4.5 V to 36 V input voltage range

– Internal power MOSFET

– Internal +5 V LDO for device supply

– Up to 36 V output voltage

– Constant frequency peak current-mode

control

– 250 kHz to 1 MHz adjustable switching

frequency

– External synchronization for multi-device

application

– Pulse-skip power saving mode at light load

– Programmable soft-start

– Programmable OVP protection

– Stable with ceramic output capacitors

– Thermal shutdown

■ Backlight driver section

– Six rows with 30 mA maximum current

capability (adjustable)

– Parallelable rows for higher current

– Rows disable option

– Less than 500 ns minimum dimming time

(1 % minimum dimming duty-cycle at 20

kHz)

– ±2 % current matching between rows

– LED failure (open and short-circuit)

detection

Applications

■ LCD monitors and TV panels

■ PDA panel backlight

■ GPS panel backlight

Description

The LED7706 consists of a high efficiency

monolithic boost converter and six controlled

current generators (rows) specifically designed to

supply LED arrays used in the backlighting of

LCD panels. The device can manage an output

voltage up to 36 V (i.e. 10 white LEDs per row).

The generators can be externally programmed to

sink up to 30 mA and can be dimmed via a PWM

signal (1 % dimming duty-cycle at 20 kHz can be

managed). The device allows to detect and

manage the open and shorted LED faults and to

let unused rows floating. Basic protections

(Output Over-Voltage, internal MOSFET

Over-Current and Thermal Shutdown) are

provided.

VFQFPN-24 4x4

Table 1.

Device summary

Order code

Package

Packaging

LED7706

VFQFPN-24 4x4 (exposed pad)

Tube

LED7706TR

Tape and reel

www.st.com

同様の部品番号 - LED7706

メーカー	部品番号	データシート	部品情報
Roithner LaserTechnik G...	LED770-03AU	66Kb / 1P	Infrared LED Lamp
STMicroelectronics	LED7707	1Mb / 48P	6-rows 85 mA LEDs driver with boost regulator for LCD panels backlight 18-Sep-2008
	LED7707TR	1Mb / 48P	6-rows 85 mA LEDs driver with boost regulator for LCD panels backlight 18-Sep-2008
	LED7708	861Kb / 53P	16 channels x 85 mA LED driver with boost controller and 4-wire serial interface May 2012 Rev 1
	LED7708TR	861Kb / 53P	16 channels x 85 mA LED driver with boost controller and 4-wire serial interface May 2012 Rev 1

More results

同様の説明 - LED7706

メーカー	部品番号	データシート	部品情報
ON Semiconductor	PM6600	768Kb / 43P	6-rows 30 mA LEDs driver with boost regulator for LCD panels backlight January 2008 Rev 2
STMicroelectronics	PM6600	774Kb / 43P	6-row 32 mA LED driver with boost regulator for LCD panel backlight 07-Apr-2008
STMicroelectronics	LED7707	1Mb / 48P	6-rows 85 mA LEDs driver with boost regulator for LCD panels backlight 18-Sep-2008
Semtech Corporation	SC662	961Kb / 30P	Backlight Driver for 6 LEDs with SemPulse짰 Interface
Rohm	BD6581GU	751Kb / 27P	White Backlight LED Driver for Medium to Large LCD Panels (Switching Regulator Type)
	BD8113EFV	389Kb / 20P	White Backlight LED Driver for Medium to Large LCD Panels (Switching Regulator Type)
	BD6583MUV-A	1Mb / 27P	White Backlight LED Driver for Medium to Large LCD Panels (Switching Regulator Type)
STMicroelectronics	STEVAL-ISA056V1	98Kb / 4P	6 rows - 30 mA LEDs driver with boost converter for LCD panels backlight evaluation board based on the PM6600 10-Mar-2008
Rohm	BD9206EFV	1Mb / 21P	Simple Structure Constant Current Backlight Driver for LCD panels
STMicroelectronics	ALED7707	1Mb / 36P	6-row 85 mA LEDs driver with boost regulator for LCD panels backlight 23-Jan-2017