参数资料
型号: LTC3205EUF
厂商: Linear Technology
文件页数: 16/16页
文件大小: 0K
描述: IC LED DRVR WT/RGB BCKLGT 24-QFN
标准包装: 91
拓扑: PWM,降压(降压),升压(升压),切换式电容器(充电泵)
输出数: 9
内部驱动器:
类型 - 主要: 背光
类型 - 次要: RGB,白色 LED
频率: 600kHz ~ 1.1MHz
电源电压: 2.8 V ~ 4.5 V
安装类型: 表面贴装
封装/外壳: 24-WFQFN 裸露焊盘
供应商设备封装: 24-QFN 裸露焊盘(4x4)
包装: 管件
工作温度: -40°C ~ 85°C
LTC3205
TYPICAL APPLICATIO
Using the RGB Display as a Camera Light
L1
2.2 μ H
D1
V RGB = 6V
I RGB = 300mA TOTAL
Li-Ion
5
1
1 μ F
5
4
1 μ F
6
3
16
1 μ F
2.2 μ F
4
V IN
SHDN
LT1930A
GND
2
SW
FB
3
38.3k
10k
10 μ F
C1 + C1 –
C2 + C2 –
V IN
CPO
15
1 μ F
FROM
MICROCONTROLLER
10
12
7
8
9
ENRGB
DV CC
D IN
SCLK
LD
LTC3205
MAIN1
MAIN2
MAIN3
MAIN4
SUB1
SUB2
2
1
24
23
22
21
WHITE
WHITE
WHITE
WHITE
WHITE
WHITE
I LED = 20mA
RED
GREEN
BLUE
RED
GREEN
BLUE
18
19
20
3205 TA07
SGND STEPUP I MS
I RGB
17
11
14
13
24.9k
24.9k
Si1406DH
6.2k
I FLASH = 100mA PER R, G, B, LED
FLASH
RELATED PARTS
PART NUMBER
LT ? 1618
LTC1911-1.5
LT1932
LT1937
LTC3200-5
LTC3201
LTC3202
LTC3251
LTC3405/LTC3405A
LTC3406/LTC3406B
LTC3440
LT3465/LT3465A
DESCRIPTION
Constant Current, Constant Voltage, 1.4MHz
High Efficiency Boost Regulator
250mA (I OUT ), 1.5MHz High Efficiency
Step-Down Charge Pump
Constant Current, 1.2MHz High Efficiency White
LED Boost Regulator
Constant Current, 1.2MHz High Efficiency White
LED Boost Regulator
Low Noise, 2MHz Regulated Charge Pump
White LED Driver
Low Noise, 1.7MHz Regulated Charge Pump
White LED Driver
Low Noise, 1.5MHz Regulated Charge Pump
White LED Driver
500mA (I OUT ), 1MHz to 1.6MHz Spread Spectrum
Step-Down Charge Pump
300mA (I OUT ), 1.5MHz Synchronous Step-Down
DC/DC Converter
600mA (I OUT ), 1.5MHz Synchronous Step-Down
DC/DC Converter
600mA (I OUT ), 2MHz Synchronous Buck-Boost
DC/DC Converter
1.2MHz/2.7MHz with Internal Schottky
COMMENTS
Up to 16 White LEDs, V IN : 1.6V to 18V, V OUT(MAX) : 34V, I Q : 1.8mA, I SD : ≤ 1 μ A,
10-Lead MS
75% Efficiency, V IN : 2.7V to 5.5V, V OUT(MIN) : 1.5V/1.8V, I Q : 180 μ A,
I SD : ≤ 10 μ A, MS8
Up to 8 White LEDs, V IN : 1V to 10V, V OUT(MAX) : 34V, I Q : 1.2mA, I SD : ≤ 1 μ A,
ThinSOT TM
Up to 4 White LEDs, V IN : 2.5V to 10V, V OUT(MAX) : 34V, I Q : 1.9mA, I SD : ≤ 1 μ A,
ThinSOT, SC70
Up to 6 White LEDs, V IN : 2.7V to 4.5V, V OUT(MAX) : 5V, I Q : 8mA, I SD : ≤ 1 μ A,
ThinSOT
Up to 6 White LEDs, V IN : 2.7V to 4.5V, V OUT(MAX) : 5V, I Q : 6.5mA, I SD : ≤ 1 μ A,
10-Lead MS
Up to 8 White LEDs, V IN : 2.7V to 4.5V, V OUT(MAX) : 5V, I Q : 5mA, I SD : ≤ 1 μ A,
10-Lead MS
85% Efficiency, V IN : 3.1V to 5.5V, V OUT(MIN) : 0.9V to 1.6V, I Q : 9 μ A, I SD : ≤ 1 μ A,
10-Lead MS
95% Efficiency, V IN : 2.7V to 6V, V OUT(MIN) : 0.8V, I Q : 20 μ A, I SD : ≤ 1 μ A,
ThinSOT
95% Efficiency, V IN : 2.5V to 5.5V, V OUT(MIN) : 0.6V, I Q : 20 μ A, I SD : ≤ 1 μ A,
ThinSOT
95% Efficiency, V IN : 2.5V to 5.5V, V OUT(MIN) : 2.5V, I Q : 25 μ A, I SD : ≤ 1 μ A,
10-Lead MS
Up to 6 White LEDs, V IN : 12.7V to 16V, V OUT(MAX) : 34V, I Q : 1.9mA, I SD : <1 μ A,
ThinSOT
ThinSOT is a trademark of Linear Technology Corporation.
3205f
(408) 432-1900 q FAX: (408) 434-0507 www.linear.com
16
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
q
LT/TP 0504 1K ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2003
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