參數(shù)資料
型號(hào)： LTC3206
廠商： Linear Technology Corporation
英文描述： I2C Multidisplay LED Controller
中文描述： 多顯示LED控制器的I2C
文件頁(yè)數(shù)： 1/16頁(yè)
文件大?。?/td> 204K
代理商： LTC3206
LTC3206
1
3206f
APPLICATIU
■
Cellular Phones
■
Wireless PDAs
■
Multidisplay Handheld Devices
DESCRIPTIOU
FEATURES
TYPICAL APPLICATIO
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
I
2
C is a trademark of Philips Electronics N.V.
* U.S. Patent 6,411,531
■
Step-Up/Direct-Connect Fractional Charge Pump
Provides Up to 92% Efficiency
■
Up to 400mA Continuous Output Current
■
Independent Current and Dimming Control for
1-6 LED MAIN, 1-4 LED SUB and RGB LED Displays
■
LED Currents Programmable Using 2-Wire I
2
C
Serial Interface
■
1% LED Current Matching
■
Low Noise Constant Frequency Operation*
■
Minimal Component Count
■
Automatic Soft-Start Limits Inrush Current
■
16 Exponentially Spaced Dimming States Provides
128:1 Brightness Range for MAIN and SUB Displays
■
Up to 4096 Color Combinations for RGB Display
■
Low Operating Current: I
VIN
= 180
μ
A
■
Tiny, Low Profile 24-Lead (4mm
×
4mm
×
0.75mm)
QFN Package
I
2
C Multidisplay
LED Controller
The LTC
3206 is a highly integrated multidisplay LED con-
troller. The part contains a high efficiency, low noise frac-
tional step-up/direct-connect charge pump to provide
power for both main and sub white LED displays plus an
RGB color LED display. The LTC3206 requires only four
small ceramic capacitors plus two resistors to form a
complete 3-display LED power supply and current
controller.
Maximum currents for the main/sub displays and RGB
display are set independently. Current for each LED is
controlled with an internal current source. Dimming and
ON/OFF control for all displays is achieved via a 2-wire
serial interface. Two auxiliary LED pins can be individually
assigned to either the MAIN or SUB displays. 16 individual
dimming states exist for both the MAIN and SUB displays.
Each of the RED, GREEN and BLUE LEDs have 16 dimming
states as well, resulting in up to 4096 color combinations.
The LTC3206 charge pump optimizes efficiency based on
V
IN
and LED forward voltage conditions. The part powers
up in direct-connect mode and automatically switches to
1.5x
step-up mode once any enabled LED current source
begins to enter dropout. Internal circuitry prevents inrush
current and excess input noise during start-up and mode
switching. The LTC3206 is available in a 24-lead (4mm
×
4mm) QFN package.
V
IN
2.2
μ
F
2.2
μ
F
3206 TA01a
2.2
μ
F
2.2
μ
F
V
IN
2.7V TO
4.5V
4
MAIN DISPLAY
SUB DISPLAY
RGB ILLUMINATOR
2
I
RGB
I
MS
I
2
C SERIAL
INTERFACE
2
3
RED
GREEN BLUE
LTC3206
SERIAL PORT
MAIN1-4
AUX 1
AUX 2
SUB1-2
RGB
CPO
5-LED Main Display Efficiency
vs Input Voltage
INPUT VOLTAGE (V)
3.0
E
L
/
I
)
60
80
100
3206 TA01b
40
20
50
70
90
30
10
0
3.6
3.9
3.3
4.2
FIVE LEDs AT 15mA/LED
(TYP V
F
AT 15mA = 3.2V)
T
A
= 25
°
C
相關(guān)PDF資料
PDF描述
LTC3206EUF I2C Multidisplay LED Controller
LTC3215 700mA Low Noise High Current LED Charge Pump
LTC3215EDD 700mA Low Noise High Current LED Charge Pump
LTC3443 700mA Low Noise High Current LED Charge Pump
LTC3216EDE 1A Low Noise High Current LED Charge Pump with Independent Torch/Flash Current Control
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC3206EUF 功能描述:IC LED DRVR WT/RGB BCKLGT 24-QFN RoHS:否 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:6,000 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?開路漏極，PWM 輸出數(shù):4 內(nèi)部驅(qū)動(dòng)器:是 類型 - 主要:LED 閃爍器 類型 - 次要:- 頻率:400kHz 電源電壓:2.3 V ~ 5.5 V 輸出電壓:- 安裝類型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-HVSON 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C 其它名稱:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND
LTC3206EUF#PBF 功能描述:IC LED DRVR WT/RGB BCKLGT 24-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:6,000 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?開路漏極，PWM 輸出數(shù):4 內(nèi)部驅(qū)動(dòng)器:是 類型 - 主要:LED 閃爍器 類型 - 次要:- 頻率:400kHz 電源電壓:2.3 V ~ 5.5 V 輸出電壓:- 安裝類型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-HVSON 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C 其它名稱:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND
LTC3206EUF#TR 功能描述:IC LED DRVR WT/RGB BCKLGT 24-QFN RoHS:否 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:6,000 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?開路漏極，PWM 輸出數(shù):4 內(nèi)部驅(qū)動(dòng)器:是 類型 - 主要:LED 閃爍器 類型 - 次要:- 頻率:400kHz 電源電壓:2.3 V ~ 5.5 V 輸出電壓:- 安裝類型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-HVSON 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C 其它名稱:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND
LTC3206EUF#TRPBF 功能描述:IC LED DRVR WT/RGB BCKLGT 24-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - LED 驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:6,000 系列:- 恒定電流:- 恒定電壓:- 拓?fù)?開路漏極，PWM 輸出數(shù):4 內(nèi)部驅(qū)動(dòng)器:是 類型 - 主要:LED 閃爍器 類型 - 次要:- 頻率:400kHz 電源電壓:2.3 V ~ 5.5 V 輸出電壓:- 安裝類型:表面貼裝 封裝/外殼:8-VFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-HVSON 包裝:帶卷 (TR) 工作溫度:-40°C ~ 85°C 其它名稱:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND
LTC3207 制造商:LINER 制造商全稱:Linear Technology 功能描述:600mA Universal Multi-Output LED/CAM Driver
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