CAT3606 datasheet(1/11 Pages) CATALYST

Numer części	CAT3606

Szczegółowy opis	6-Channel Low Noise Charge Pump White LED Driver

PDF	11 Pages

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Producent	CATALYST [Catalyst Semiconductor]

Strona internetowa	http://www.catalyst-semiconductor.com

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Characteristics subject to change without notice

1

CAT3606

6-Channel Low Noise Charge Pump White LED Driver

Doc. No. 5009, Rev. B

I White LED detect circuitry on all channels

I Shutdown current less than 1

µA

I Small ceramic capacitors

I Soft start and current limiting

I Short circuit protection

I 16-lead thin QFN package, 0.8mm

max height

DESCRIPTION

The CAT3606 controls up to four LEDs for the main

display and two LEDs for the sub-display in cellular

phones. The device is capable of operating in either

1x (LDO) mode or 1.5x charge pump mode. All LED

pin currents are regulated and tightly matched to

achieve uniformity of brightness across the LCD

backlight. An external resistor (RSET) sets the

nominal output current.

The device can deliver as much as 20mA per

channel during low voltage operation (3V), and

30mA per channel during nominal operation (3.3V).

A constant high-frequency switching scheme

FEATURES

I Drives up to 4 main LEDs and 2 sub LEDs

I Separate control for main and sub LEDs

I Compatible with supply voltage of 3V to 5.5V

I Power efficiency up to 90%

I Output current up to 30mA per LED

I High-frequency Operation at 1MHz

I 2 modes of operation 1x and 1.5x

APPLICATIONS

I Cell phone main and sub-display backlight

I Navigation

TYPICAL APPLICATION CIRCUIT

CAT3606

+

-

C1+

C2+

C1-

C2-

VIN

EN

ENM

ENS

RSET

VOUT

LED1

LED2

LED3

LED4

LED5

LED6

COUT

20mA

RSET

Li-Ion

Battery

ON/OFF

ENABLE

LED1-4

ENABLE

LED5-6

CIN

GND

Main Display

Sub Display

I PDAs

I Digital Cameras

(1MHz) provides low noise and allows the use of

very small value ceramic capacitors.

A “zero” quiescent current mode can be achieved

via the chip enable pin EN. The Main and Sub LEDs

each have their own dedicated ON/OFF control

pins (

ENM, ENS). Dimming can be achieved using

either a DC voltage to control the RSET pin current,

or by applying a PWM signal on the

ENM and ENS

pins.

The device is available in a 16-lead thin QFN

package with a max height of 0.8mm.

Podobny numer części - CAT3606

Producent	Numer części	Arkusz danych	Szczegółowy opis
Catalyst Semiconductor	CAT3606	867Kb / 28P	Catalyst Semiconductor
Catalyst Semiconductor	CAT3606	367Kb / 12P	6-Channel Low Noise Charge Pump White LED Driver
ON Semiconductor	CAT3606	259Kb / 11P	6-Channel Low Noise Charge Pump White LED Driver January, 2010 ??Rev. 3
	CAT3606HV4-GT2	360Kb / 12P	6-Channel Low Noise Charge Pump White LED Driver Doc. No. MD-5009 Rev. D
	CAT3606HV4-GT2	259Kb / 11P	6-Channel Low Noise Charge Pump White LED Driver January, 2010 ??Rev. 3

More results

Podobny opis - CAT3606

Producent	Numer części	Arkusz danych	Szczegółowy opis
California Micro Device...	CM9156A	561Kb / 15P	Charge Pump White LED Driver
California Micro Device...	CM9156B	545Kb / 13P	Charge-Pump White LED Driver
Allegro MicroSystems	A8434	446Kb / 11P	6-Channel High Efficiency Charge Pump White LED Driver
Orister Corporation	RS9360A	483Kb / 8P	Charge-Pump White LED Driver
Catalyst Semiconductor	CAT3606	367Kb / 12P	6-Channel Low Noise Charge Pump White LED Driver
ON Semiconductor	CAT3606HV4-T2	360Kb / 12P	6-Channel Low Noise Charge Pump White LED Driver Doc. No. MD-5009 Rev. D
ON Semiconductor	CAT3606	259Kb / 11P	6-Channel Low Noise Charge Pump White LED Driver January, 2010 ??Rev. 3
Eutech Microelectronics...	EUP3654	82Kb / 1P	6 Channel, 1X/1.5X Charge Pump White LED Driver
Rohm	BD2606MVV	1Mb / 20P	6-Channel Charge Pump White LED Driver
SG Micro Corp	SGM3144	2Mb / 12P	6-Channel PWM Dimming Charge Pump White LED Driver

More results

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