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| 型号： | LT3590ESC8#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 8/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT SC-70-8 |
| 标准包装： | 1 |
| 拓扑： | PWM，降压（降压） |
| 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： | 650kHz ~ 1.05MHz |
| 电源电压： | 4.5 V ~ 55 V |
| 输出电压： | 55V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-VFSOP（0.492"，1.25mm 宽） |
| 供应商设备封装： | SC-70-8 |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 1340 (CN2011-ZH PDF) |
| 其它名称： | LT3590ESC8#TRMPBFDKR |
LT3590
APPLICATIONS INFORMATION
Inductor Selection
A 220μH inductor is recommended for most LT3590 ap-
plications with V IN < 25V and 470μH is recommended for
applications with V IN > 25V. Although small size and high
ef?ciency are major concerns, the inductor should have
low core losses at 850kHz and low DCR (copper wire
resistance). Several manufacturers and inductor series
that meet these criteria are listed in Table 1. The ef?ciency
comparison of different inductors is shown in Figure 3.
Table 1. Inductor Manufacturers
INDUCTANCE
Capacitor Selection
The small size of ceramic capacitors make them ideal
for LT3590 applications. X5R and X7R types are recom-
mended because they retain their capacitance over wider
voltage and temperature ranges than other types such as
Y5V or Z5U. A 1μF input capacitor and a 0.1μF regulator
capacitor are suf?cient for most applications. For the
output capacitor, 1μF is generally recommended, but if
the voltage across the capacitor exceeds 10V, a 0.47μF
capacitor may be used instead. For applications driving
one or two LEDs a 2.2μF output capacitor is needed.
VENDOR
Coilcraft
www.coilcraft.com
PART
SERIES
DO1605
LPS4012
LPS3010
RANGE (μH)
(RELEVANT TO
THIS PART)
100 TO 680
100 TO 680
100 TO 330
DIMENSIONS
(mm)
5.4 × 4.2 × 1.8
4.0 × 4.0 × 1.2
3.0 × 3.0 × 0.9
Table 2 shows a list of several ceramic capacitor manufac-
turers. Consult the manufacturers for detailed information
on their entire selection of ceramic parts.
Table 2: Recommended Ceramic Capacitor Manufacturers
1812FS
MSS5131
100 TO 680
100 TO 390
5.1 × 5.1 × 3.1
Taiyo Yuden
(408) 573-4150
www.t-yuden.com
Sumida
www.sumida.com
Toko
www.tokoam.com
Würth Elektronik
CDC4D20
LLQ1608
LLQ2012
WE-PD2
100 TO 680
100 TO 270
100 TO 680
100 TO 220
4.8 × 4.8 × 2.0
5.2 × 5.8 × 4.5
AVX
Murata
Kemet
(803) 448-9411
www.avxcorp.com
(714) 852-2001
www.murata.com
(408) 986-0424
www.we-online.com
TYPE M
www.kemet.com
WE-PD2
TYPE L
100 to 470
7.0 × 7.8 × 5.0
Coiltronics
CTX32C
100 to 330
2.5 × 3.2 × 2.2
www.cooperet.com
Murata
www.murata.com
LQH32M
LQH43M
100 to 560
100 to 680
3.2 × 2.5 × 2.0
4.5 × 3.2 × 2.0
92
90
88
86
V IN = 48V
10 LEDs
FRONT PAGE
APPLICATION
CIRCUIT
TDK SLF70145-471MR22-PF
MURATA QH32CN471K23
MURATA LQH43CN471K03
COILCRAFT LP06013-474KLB
COILCRAFT 1008PS-474KLB
COILCRAFT LPS4012-474ML
84
0
10
20
30
40
50
LED CURRENT (mA)
3590 F03
Figure 3. Ef?ciency Comparison of Different Inductors
3590f
8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3590ESC8-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:48V Buck Mode LED Driver in SC70 and 2mm x 2mm DFN |
| LT3591 | 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 |
| LT3591EDDB#PBF | 制造商:Linear Technology 功能描述:LED DRVR 10Segment 3.3V/5V/9V 8-Pin DFN EP 制造商:Linear Technology 功能描述:LED DRIVER BOOST PWM/ANALOGU 制造商:Linear Technology 功能描述:LED DRIVER, BOOST, PWM/ANALOGUE, 1MHZ, DFN-8; Topology:Boost (Step Up); No. of Outputs:1; Output Voltage:42V; Driver Case Style:DFN; Input Voltage Min:2.5V; Input Voltage Max:12V; Dimming Control Type:PWM / Analogue ;RoHS Compliant: Yes |
| LT3591EDDB#TRMPBF | 功能描述:IC LED DRIVER WHITE BCKLGT 8-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 |
| LT3591EDDB#TRPBF | 功能描述:IC LED DRIVER WHITE BCKLGT 8-DFN RoHS:是 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 |
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