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参数资料
| 型号： | LT3465ES6#TR |
| 厂商： | Linear Technology |
| 文件页数： | 12/16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： | 800kHz ~ 1.6MHz |
| 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
APPLICATIO S I FOR ATIO
Open-Circuit Protection
The LT3465 and LT3465A have an internal open-circuit
protection circuit. In the cases of output open circuit,
when the LEDs are disconnected from the circuit or the
LEDs fail, the V OUT is clamped at 30V. The LT3465 and
LT3465A will then switch at a very low frequency to
minimize the input current. V OUT and input current during
output open circuit are shown in the Typical Performance
Characteristics.
Board Layout Consideration
As with all switching regulators, careful attention must be
paid to the PCB board layout and component placement.
To maximize efficiency, switch rise and fall times are
made as short as possible. To prevent electromagnetic
interference (EMI) problems, proper layout of the high
frequency switching path is essential. Place C OUT next to
the V OUT and GND pins. Always use a ground plane under
resistor R1 should be tied directly to the GND pin and not
shared with any other component, ensuring a clean, noise-
free connection. Recommended component placement is
shown in Figure 8.
Start-Up Input Current (LT3465A)
As previously mentioned, the LT3465A does not have an
internal soft-start circuit. Inrush current can therefore rise
to approximately 400mA as shown in Figure 9 when
driving 4 LEDs. The LT3465 has an internal soft-start
circuit and is recommended if inrush current must be
minimized.
I IN
200mV/DIV
FB
200mV/DIV
the switching regulator to minimize interplane coupling.
In addition, the ground connection for the feedback
CTRL
2V/DIV
50 μ s/DIV
3465A F09
Figure 9.
GND
L
C OUT
R FB
1
2
3
6
5
4
C IN
V IN
CTRL
3465A F08a
Figure 8. Recommended Component Placement.
3465afa
12
相关PDF资料 |
PDF描述 |
|---|---|
| LT3465ES6#TRM | IC LED DRIVR WHITE BCKLGT TSOT-6 |
| P51-500-A-AF-MD-4.5OVP-000-000 | SENSOR 500PSI 9/16-18 UNF 4.5V |
| 4905-3/4"X72YD SM PK | TAPE VHB ACRYLIC CLEAR 3/4"X72YD |
| REC3-2405SRW/H4/C/M | CONV DC/DC 3W 18-36VIN 05VOUT |
| P51-500-A-Z-M12-20MA-000-000 | SENSOR 500PSI 1/4-18NPT 4-20MA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3465ES6TRMPBF | 制造商:Linear Technology 功能描述:LED Driver 6-Seg 3.3/5/9/12/15V TSOT23-6 |
| LT3466 | 制造商:LINER 制造商全称:Linear Technology 功能描述:20mA LED Driver and OLED Driver with Integrated Schottky in 3mm x 2mm DFN |
| LT3466-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:20mA LED Driver and OLED Driver with Integrated Schottky in 3mm x 2mm DFN |
| LT3466EDD | 功能描述:IC LED DRIVR WHITE BCKLGT 10-DFN 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 |
| LT3466EDD#PBF | 功能描述:IC LED DRIVR WHITE BCKLGT 10-DFN 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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