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| 型号： | LT3465AES6#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR WHITE BCKLGT TSOT-6 |
| 标准包装： | 2,500 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1.8MHz ~ 2.8MHz |
| 电源电压： | 2.7 V ~ 16 V |
| 输出电压： | 30V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 供应商设备封装： | TSOT-23-5 |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
LT3465/LT3465A
1.2MHz/2.4MHz White
LED Drivers with Built-in
Schottky in ThinSOT
FEATURES
DESCRIPTIO
■
■
■
■
■
■
■
■
■
■
■
■
Inherently Matched LED Current
Drives Up to Six LEDs from a 3.6V Supply
No External Schottky Diode Required
1.2MHz Switching Frequency (LT3465)
2.4MHz Switching Frequency Above AM Broadcast
Band (LT3465A)
V IN Range: 2.7V to 16V
V OUT(MAX) = 30V
Automatic Soft-Start (LT3465)
Open LED Protection
High Efficiency: 81% (LT3465) 79% (LT3465A)
Typical
Requires Only 0.22 μ F Output Capacitor
Low Profile (1mm) SOT-23
The LT ? 3465/LT3465A are step-up DC/DC converters
designed to drive up to six LEDs in series from a Li-Ion cell.
Series connection of the LEDs provides identical LED
currents and eliminates the need for ballast resistors.
These devices integrate the Schottky diode required exter-
nally on competing devices. Additional features include
output voltage limiting when LEDs are disconnected, one-
pin shutdown and dimming control. The LT3465 has
internal soft-start.
The LT3465 switches at 1.2MHz, allowing the use of tiny
external components. The faster LT3465A switches at
2.4MHz. Constant frequency switching results in low input
noise and a small output capacitor. Just 0.22 μ F is required
for 3-, 4- or 5-LED applications.
APPLICATIO S
■ Cellular Phones
■ PDAs, Handheld Computers
■ Digital Cameras
The LT3465 and LT3465A are available in the low profile
(1mm) 6-lead SOT-23 (ThinSOT TM ) package.
, LTC and LT are registered trademarks of Linear Technology Corporation. ThinSOT is a
trademark of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
■
■
MP3 Players
GPS Receivers
TYPICAL APPLICATIO
Conversion Efficiency
3V TO 5V
L1
22 μ H
82
V IN = 3.6V
80 4 LEDs
78
SW
V IN
V OUT
76
74
SHUTDOWN
AND DIMMING
CONTROL
C1
1 μ F
LT3465/
LT3465A
CTRL
GND
FB
10 ?
C2
0.22 μ F
72
70
68
66
C1, C2: X5R OR X7R DIELECTRIC
3465A F01a
L1: MURATA LQH32CN220
Figure 1. Li-Ion Powered Driver for Four White LEDs
64
62
60
0
5
10
15
LT3465
LT3465A
20
LED CURRENT (mA)
3465A F01b
3465afa
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3465ES6 | 制造商:Linear Technology 功能描述:LED DRVR 6Segment 3.3V/5V/9V/12V/15V 6-Pin TSOT-23 |
| LT3465ES6#PBF | 制造商:Linear Technology 功能描述:IC WHITE LED DRIVER SCHOTTKY SMD 制造商:Linear Technology 功能描述:IC, WHITE LED DRIVER, SCHOTTKY, SMD 制造商:Linear Technology 功能描述:LED DRIVER, BOOST, PWM/ANALOGUE, 2.4MHZ, TSOT-23-6; Topology:Boost (Step Up); No. of Outputs:1; Output Voltage:30V; Driver Case Style:TSOT-23; Input Voltage Min:2.7V; Input Voltage Max:16V; Dimming Control Type:PWM / Analogue ;RoHS Compliant: Yes |
| LT3465ES6#TR | 功能描述:IC LED DRIVR WHITE BCKLGT TSOT-6 RoHS:否 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极，PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
| LT3465ES6#TRM | 功能描述:IC LED DRIVR WHITE BCKLGT TSOT-6 RoHS:否 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极，PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND |
| LT3465ES6#TRMPBF | 功能描述:IC LED DRIVR WHITE BCKLGT TSOT-6 RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:60 系列:- 恒定电流:- 恒定电压:- 拓扑:线性（LDO），PWM，升压（升压） 输出数:8 内部驱动器:是 类型 - 主要:背光 类型 - 次要:RGB，白色 LED 频率:500kHz ~ 1.5MHz 电源电压:4.75 V ~ 26 V 输出电压:45V 安装类型:* 封装/外壳:* 供应商设备封装:* 包装:* 工作温度:-40°C ~ 85°C |
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