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CAT3606

Features: *Drives up to 4 main LEDs and 2 sub LEDs*Separate control for main and sub LEDs*Compatible with supply voltage of 3V to 5.5V*Power efficiency up to 90%*Output current up to 30mA per LED*High-frequency Operation at 1MHz*2 modes of operation 1x and 1.5x*White LED detect circuitry on all ch...

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SeekIC No. : 004310642 Detail

CAT3606: Features: *Drives up to 4 main LEDs and 2 sub LEDs*Separate control for main and sub LEDs*Compatible with supply voltage of 3V to 5.5V*Power efficiency up to 90%*Output current up to 30mA per LED*Hi...

CAT3606 Data Sheet

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Part Number:
CAT3606
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/23

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Product Details

Description



Features:

*Drives up to 4 main LEDs and 2 sub LEDs
*Separate control for main and sub LEDs
*Compatible with supply voltage of 3V to 5.5V
*Power efficiency up to 90%
*Output current up to 30mA per LED
*High-frequency Operation at 1MHz
*2 modes of operation 1x and 1.5x
*White LED detect circuitry on all channels
*Shutdown current less than 1µA
*Small ceramic capacitors
*Soft start and current limiting
*Short circuit protection
*16-lead thin QFN package, 0.8mm max height



Application

*Cell phone main and sub-display backlight
*Navigation
*PDAs
*Digital Cameras


Pinout

Connection Diagram


Specifications

Pretemara

Rating

Unit

VIN,VOUT,LEDX voltage

-0.3 to 7.0

V

EN,ENM,ENS voltage

-0.3 to VIN

V


RSET voltage

-0.3 to VIN

V

RSET current

±1

mA

Ambient Temperature Range

-40 tO +85

oC


Storage Temperature Range

-65 to 160

oC

Lead Temperature

300

oC

ESD Ratings
Human Body Model(HBM)
MAchine Model(MM)(note1)

2000
200

V
V




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.

CAT3606 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
(1MHz) provides low noise and allows the use ofvery small value ceramic capacitors.

A "zero" quiescent current mode CAT3606 can be achieved via the chip enable pin EN. The Main and Sub LED seach have their own dedicated ON/OFF controlpins (ENM, ENS). Dimming can beachieved using either a DC voltage to control the RSET pin current, or by applying a PWM signal on the ENM and ENSpins.

CAT3606 is available in a 16-lead thin QFNpackage with a max height of 0.8mm.




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