收藏本站
LT3597
APPLICATIONS INFORMATION
Inductor Selection
Inductor values between 100μH and 470μH are recom-
mended for most applications. It is important to choose
an inductor that can handle the peak current without
saturating. The inductor DCR (copper wire resistance)
must also be low in order to minimize I 2 R power losses.
Table 1 lists several recommended inductors.
Typically 10μF capacitors are sufficient for the V IN and BIAS
pins. The output capacitor for the buck regulators depends
on the number of LEDs and switching frequency. Refer to
Table 3 for the proper output capacitor selection.
Table 3. Recommended Output C apacitor     Values (V LED = 3.5V)
SWITCHING FREQUENCY (kHz) # LEDS C OUT (μF)
1000 1-3 3.3
Table 1. Recommended Inductors
>3
2.2
PART
L (μH)
DCR (?)
CURRENT
RATING (A)
VENDOR
500
1-3
>3
4.7
3.3
LPS6225
MSS1038
MSS1038
MSS1038
CDRH105R
CDRW105R
CDRH105R
CDR6D28MN
DS1262C2
DS1262C2
DS1262C2
SLF10145T
SLF10145T
DR73
DR73
100
100
220
470
100
220
470
100
100
220
470
100
220
100
220
0.61
0.3
0.76
1.24
0.253
0.50
1.29
0.9
0.17
0.35
1.243
0.26
0.47
0.527
1.05
0.52
1.46
0.99
0.70
1.35
0.94
0.60
0.75
1.5
1.0
0.7
1.0
0.7
0.79
0.53
Coilcraft
www.coilcraft.com
Sumida
www.sumida.com
Toko
www.toko.com
TDK
www.tdk.com
Coiltronics
www.cooperet.com
200 1-3 15
>3 6.8
Diode Selection
Schottky diodes, with their low forward voltage drop and
fast switching speed, must be used for all LT3597 ap-
plications. Do not use P-N junction diodes. The diode’s
average current rating must exceed the application’s aver-
age current. The diode’s maximum reverse voltage must
exceed the application’s input voltage. Table 4 lists some
recommended Schottky diodes.
Table 4. Recommended Diodes
Capacitor Selection
Low ESR (equivalent series resistance) capacitors should
be used at the outputs to minimize output ripple voltage.
Use only X5R or X7R dielectrics, as these materials retain
their capacitance over wider voltage and temperature
ranges than other dielectrics. Table 2 lists some suggested
manufacturers. Consult the manufacturers for detailed
information on their entire selection of ceramic surface
mount parts.
PART
DFLS160
B160
CMMSH1-60
ESIPB
MAX CURRENT MAX REVERSE
(A) VOLTAGE (V)
1 60
1 60
1 60
1 100
MANUFACTURER
Diodes, Inc.
www.diodes.com
Central
www.centralsemi.com
Vishay
www.vishay.com
Table 2. Recommended Ceramic Capacitor Manufacturers
Taiyo Yuden
AVX
Murata
Kemet
TDK
www.t-yuden.com
www.avxcorp.com
www.murata.com
www.kemet.com
www.tdk.com
3597fa
11
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
LT3598IUF#PBF IC LED DRIVR WHITE BCKLGT 24-QFN
LT3599IFE#PBF IC LED DRVR WHITE BCKLGT 28TSSOP
LT3743EFE#PBF IC LED DVR HP CONST CURR 28TSSOP
LT3745IUJ#TRPBF IC LED DVR 16CH 50MA 40QFN
LT3746IUHH#TRPBF IC LED DRIVER 32CHANNEL 56-QFN
LT3754IUH#TRPBF IC LED DVR 16CH 50MA 32QFN
LT3755EMSE#PBF IC LED DRVR HP CONS CURR 16-MSOP
LT3760EFE#PBF IC LED DVR WHT/CLR BCKLT 28TSSOP
相关代理商/技术参数
LT3597EUHG#TRPBF 功能描述:IC LED DRIVER 60V TRIPLE 52-QFN 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
LT3597IUHG#PBF 功能描述:IC LED DRIVER 60V TRIPLE 52-QFN 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
LT3597IUHG#TRPBF 功能描述:IC LED DRIVER 60V TRIPLE 52-QFN 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
LT3598 制造商:LINER 制造商全称:Linear Technology 功能描述:60V Triple Step-Down LED Driver Programmable Temperature Protection
LT3598_1 制造商:LINER 制造商全称:Linear Technology 功能描述:6-String 30mA LED Driver with 1.5% Current Matching
LT3598EFE#PBF 功能描述:IC LED DRVR WHITE BCKLGT 24TSSOP 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
LT3598EFE#PBF 制造商:Linear Technology 功能描述:LED DRIVER BOOST PWM 2.5MHZ 制造商:Linear Technology 功能描述:LED DRIVER, BOOST, PWM, 2.5MHZ, TSSOP-24
LT3598EFE#TRPBF 功能描述:IC LED DRVR WHITE BCKLGT 24TSSOP 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