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| 型号： | LT3593EDC#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 8/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER WHITE BCKLGT 6-DFN |
| 标准包装： | 2,500 |
| 拓扑： | 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： | 850kHz ~ 1.15MHz |
| 电源电压： | 2.7 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WFDFN 裸露焊盘 |
| 供应商设备封装： | 6-DFN-EP（2x2） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
LT3593
APPLICATIONS INFORMATION
Inductor Selection
A 10μH inductor is recommended for most LT3593 ap-
plications. Although small size and high ef?ciency are
major concerns, the inductor should have low core losses
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
at 1MHz and low DCR (copper wire resistance). Some
inductors in this category with small size are listed in
Table 1. The ef?ciency comparison of different inductors
is shown in Figure 4.
Taiyo Yuden
AVX
Murata
(408) 573-4150
www.t-yuden.com
(803) 448-9411
www.avxcorp.com
(714) 852-2001
Table 1. Recommended Inductors
L DCR
CURRENT
RATING
Kemet
www.murata.com
(408) 986-0424
www.kemet.com
PART
LQH43CN100
LQH32CN100
NR3010T100M
(μH)
10
10
10
( Ω )
0.24
0.44
0.45
(mA)
650
450
500
VENDOR
Murata
Taiyo Yuden
Diode Selection
Schottky diodes, with their low forward voltage drop and
fast reverse recovery, are the ideal choices for LT3593 ap-
plications. The forward voltage drop of a Schottky diode
VLF4012AT-100M
VLF3010AT-100M
DE2812-1098AS-100M
DB3015C-1068AS-100M
10
10
10
10
0.20
0.58
0.29
0.38
500
490
580
400
TDK
TOKO
represents the conduction losses in the diode, while the
diode capacitance (C T or C D ) represents the switching
losses. For diode selection, both forward voltage drop and
diode capacitance need to be considered. Schottky diodes
with higher current ratings usually have lower forward
voltage drop and larger diode capacitance, which can
90.00
80.00
70.00
60.00
cause signi?cant switching losses at the 1.0MHz switching
frequency of the LT3593. A Schottky diode rated at 400mA
to 500mA is suf?cient for most LT3593 applications. Some
recommended Schottky diodes are listed in Table 3.
Table 3. Recommended Schottky Diodes
50.00
NR3010T100M
VLF4012-AT-100MR50
LQH43CN100K03
VLF3010AT-100MR49
PART
NUMBER
FORWARD VOLTAGE
CURRENT DROP
(mA) (V)
DIODE
CAPACITANCE
(pF) MANUFACTURER
40.00
LQH32CN100K53
DB3015C-1068AS-100M
CMDSH05-4
500
0.47 at
50 at 1V
Central
30.00
0.00
5.00 10.00 15.00
LED CURRENT (mA)
20.00
3593 F04
CMMSH1-40
1000
500mA
0.55 at
1A
80 at 4V
631-435-1110
www.centralsemi.com
Figure 4. Ef?ciency Comparison of Different Inductors
ZLL5400
520
0.50 at
400mA
15 at 30V
Zetex
631-543-7100
www.zetex.com
Capacitor Selection
PMEG-
4005AEA
500
0.47 at
500mA
50 at 1V
Phillips
+3140 27 24825
The small size of ceramic capacitors makes them ideal
www.semiconductors.
phillips.com
for LT3593 applications. Use only X5R and X7R types
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 1μF output capacitor are
suf?cient for most applications.
3593f
8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3593ES6#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 |
| LT3593ES6#TRPBF | 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: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 |
| LT3593ES6-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:1MHz White LED Driver with Output Disconnect and One Pin Current Programming |
| LT3593ES6-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:1MHz White LED Driver with Output Disconnect and One Pin Current Programming |
| LT3595 | 制造商:LINER 制造商全称:Linear Technology 功能描述:16 Channel Buck Mode LED Driver |
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