Datasheet > LTC3212

LTC3212

更新时间： 2024-11-22 14:57:59

品牌	Logo	应用领域
亚德诺 - ADI		驱动泵驱动器
页数	文件大小	规格书
12页	800K
描述
RGB LED 驱动器和充电泵

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中文翻译

获取价格

数据手册

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LTC3212 数据手册

LTC3212

RGB LED Driver and

Charge Pump

FeaTures

DescripTion

The LTC^®3212 is a low noise charge pump RGB LED

driver capable of driving three LEDs up to 25mA each

from a 2.7V to 5.5V input. Low external part count (one

ﬂying capacitor, two bypass capacitors and one to three

programmingresistors)makestheLTC3212ideallysuited

for small, battery-powered applications.

■

Power and Current Control for Driving RGB LEDs

■

Individually Programmable Current Sources

■

1x or 2x Mode, Low Noise, Constant Frequency

Charge Pump

■

Single Wire Enable Control for All LEDs

■

White Mode Adjusts R, G, B Currents for White Light

■

25mA Maximum LED Current

Built-in soft-start circuitry prevents excessive inrush cur-

rent during start-up and mode switching. High switching

frequency enables the use of small external capacitors.

The charge pump shuts down to a high impedance mode

to prevent LED leakage while the LTC3212 is off.

■

V Range: 2.7V to 5.5V

■

Automatic Soft-Start, Mode Switching and Output

Disconnect in Shutdown Mode

■

Available in 12-Lead (3mm × 2mm) DFN Package

Each LED may be individually turned on or off via a single

pin interface. The current through the LEDs may be indi-

vidually programmed with resistors or may share a single

programming resistor. White mode adjusts the red, green

and blue LED current ratios for a white light when all three

LEDs are programmed to be on.

applicaTions

■

Cellular Phones

■

Media Players

■

RGB Back Lights

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

Protected by U.S. Patents, including 6411531.

LED currents are regulated using internal low dropout

current sources. Automatic mode switching optimizes

efﬁciency by monitoring the LED current drivers and

switches mode only when dropout is detected. The part

is available in a 3mm × 2mm 12-lead DFN package.

Typical applicaTion

RGB Power Supply and Current Control

1µF

CPO

2.7V TO 5.5V

LTC3212

1µF

LEDR

LEDG

LEDB

LEDEN

SETB

SETR

SETG

INDIVIDUAL WHITE

SETTINGS MODE

11.8k

15mA

13.5mA

15mA

11.2mA

LEDR

LEDG

LEDB

3212 TA01a

3212fb

ꢀ

12 3 4 5 6 7...12

中文翻译

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与LTC3212相关器件

型号	品牌	获取价格	描述	数据表
LTC3212EDDB#PBF	Linear	获取价格	LTC3212 - RGB LED Driver and Charge Pump; Package: DFN; Pins: 12; Temperature Range: -40&a
LTC3212EDDB#TR	Linear	获取价格	IC LED DISPLAY DRIVER, PDSO12, 3 X 2 MM, LEAD FREE, PLASTIC, DFN-12, Display Driver
LTC3212EDDB#TRM	Linear	获取价格	IC LED DISPLAY DRIVER, PDSO12, 3 X 2 MM, LEAD FREE, PLASTIC, DFN-12, Display Driver
LTC3212EDDB#TRMPBF	Linear	获取价格	LTC3212 - RGB LED Driver and Charge Pump; Package: DFN; Pins: 12; Temperature Range: -40&a
LTC3212EDDB-PBF	Linear	获取价格	RGB LED Driver and Charge Pump
LTC3212EDDB-TR	Linear	获取价格	RGB LED Driver and Charge Pump
LTC3214	Linear	获取价格	500mA Camera LED Charge Pump
LTC3214	ADI	获取价格	500mA 相机 LED 充电泵
LTC3214EDD	Linear	获取价格	500mA Camera LED Charge Pump
LTC3214EDD#PBF	Linear	获取价格	LTC3214 - 500mA Camera LED Charge Pump; Package: DFN; Pins: 10; Temperature Range: -40&

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