- 您现在的位置：买卖IC网 > PDF目录20847 > LT3595AEUHH#PBF (Linear Technology)IC LED DRIVR WHITE BCKLGT 56-QFN PDF资料下载
参数资料
| 型号： | LT3595AEUHH#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 9/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVR WHITE BCKLGT 56-QFN |
| 标准包装： | 40 |
| 拓扑： | PWM，降压（降压） |
| 输出数： | 16 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1.6MHz ~ 2.4MHz |
| 电源电压： | 3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 56-WFQFN 裸露焊盘 |
| 供应商设备封装： | 56-QFN-EP（5x9） |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
LT3595A
OPERATION
Discontinuous Current Mode
The LT3595A can drive a 10-LED string at 15mA LED
current operating in continuous conduction mode using
the recommended external components shown in the ap-
plication circuit on page 1 of this data sheet. As current
is further reduced, the regulator enters discontinuous
conduction mode. The photo in Figure 1 details circuit
V SW
20V/DIV
I L
20mA/DIV
operation driving ten LEDs at 10mA load. The inductor
current reaches zero during the discharge phase and the
V IN = 45V
400ns/DIV
3595A F01
SW pin exhibits ringing. The ringing is due to the LC tank
circuit formed by the inductor in combination with the
switch and diode capacitance. This ringing is not harmful;
far less spectral energy is contained in the ringing than in
the switch transitions.
APPLICATIONS INFORMATION
Inductor Selection
A 100μH inductor is recommended for most LT3595A
10 LEDS AT 10mA
Figure 1. Switching Waveforms
Table 1. Inductor Manufacturers
INDUCTANCE
RANGE (μH)
applications. Although small size and high ef?ciency are
major concerns, the inductor should have low core losses
at 2MHz and low DCR (copper wire resistance). Some
inductors that meet these criteria are listed in Table 1. An
ef?ciency comparison of different inductors is shown in
Figure 2.
VENDOR
Coilcraft
www.coilcraft.com
Sumida
www.sumida.com
PART
SERIES
DO1605
LPS4012
1812FS
MSS5131
CDC4D20
RELEVANT TO
LT3595A
100 to 680
100 to 680
100 to 680
100 to 390
100 to 680
DIMENSIONS
(mm)
5.4 × 4.2 × 1.8
4 × 4 × 1.2
5.8 × 4.9 × 3.8
5.1 × 5.1 × 3.1
4.8 × 4.8 × 2
100
95
90
COILCRAFT 1812FS-104KLB
COILCRAFT LPS4012-104MLB
TOKO A915AY-101M
TDK VLCF4020T-101MR26
COILTRONICS SD3812-101
COILTRONICS SD52-101
Toko
www.tokoam.com
TDK
www.component.
tdk.com
Coiltronics
www.cooperet.com
Murata
www.murata.com
D53LC
VLCF4020T
SD3812
SD52
LQH32M
LQH43M
100 to 680
100 to 330
100 to 330
100 to 330
100 to 560
100 to 680
5.2 × 5.4 × 3
4 × 4 × 2
4 × 4 × 1.2
5.6 × 5.2 × 2
3.2 × 2.5 × 2
4.5 × 3.2 × 2
Capacitor Selection
V IN = 45V
L = 100μH
85
10 20 30 40 50
I LED (mA)*
3595A F02
10 LEDS
*I LED ADJUSTED WITH R SET
Figure 2. Ef?ciency Comparison of Different Inductors
The small size of ceramic capacitors make them ideal for
LT3595A applications. Only X5R and X7R types should
be used because they retain their capacitance over wider
voltage and temperature ranges than other types such as
Y5V or Z5U. Typically, 10μF capacitors on V IN and V CC
are suf?cient. The output capacitor used across the LED
3595af
9
相关PDF资料 |
PDF描述 |
|---|---|
| REC7.5-4805SRW/H2/A/M/SMD | CONV DC/DC 7.5W 36-72VIN 05VOUT |
| P51-1500-A-Z-M12-4.5OVP-000-000 | SENSOR 1500PSI 1/4-18NPT .5-4.5V |
| P51-200-G-AD-I36-20MA-000-000 | SENSOR 200PSI 7/16-20UNF 4-20MA |
| LT3743IFE#TRPBF | IC LED DVR SYNC STEPDOWN 28TSSOP |
| LT3743IUFD#TRPBF | IC LED DVR SYNC STEP-DOWN 28QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3595AEUHHTRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:16 Channel Buck Mode LED Driver |
| LT3595EUHH#PBF | 功能描述:IC LED DRIVR WHITE BCKLGT 56-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 |
| LT3595EUHH#TRPBF | 功能描述:IC LED DRIVR WHITE BCKLGT 56-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 |
| LT3595EUHH-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:16 Channel Buck Mode LED Driver |
| LT3595EUHH-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:16 Channel Buck Mode LED Driver |
发布紧急采购，3分钟左右您将得到回复。