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参数资料
| 型号： | LT3595AEUHH#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/16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
16 Channel
Buck Mode LED Driver
FEATURES
DESCRIPTION
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4.5V to 45V Input Supply Range
Up to 50mA LED Current per Channel
100mA, 45V Internal Switches
Improvements vs LT3595
Pinout Allows 1-Sided PCB Layout
Higher Maximum Switch Duty Cycle
LED Current Accuracy (7% vs 8%)
± 4% LED Current Matching
16 Independent LED Channels
5000:1 True Color PWM TM Dimming Range
LEDs Disconnected in Shutdown
Internal Schottky Diodes
2MHz Switching Frequency
R SET Pin Sets Master LED Current
Typical Ef?ciency: 92%
Open LED Detection and Thermal Protection
56-Pin 5mm × 9mm × 0.75mm QFN Package
The LT ? 3595A is a high performance LED Driver designed
to drive sixteen independent channels of up to 10 LEDs
at currents up to 50mA. Series connection of the LEDs
provides identical LED currents resulting in uniform bright-
ness. Power switches, Schottky diodes, and compensation
components are all internal, providing a small converter
footprint and lower component cost. The high 2MHz
switching frequency permits the use of tiny, low pro?le
inductors and capacitors. A ?xed frequency, current mode
architecture results in stable operation over a wide range
of supply and output voltage.
A single external resistor sets the LED current for all sixteen
channels, and dimming is then controlled for each chan-
nel by pulse width modulating the individual PWM pins.
LED current accuracy is 7%, channel-to-channel current
matching is ± 4% and the PWM dimming range is 5000:1.
The part is available in a 5mm × 9mm × 0.75mm 56-pin
APPLICATIONS
QFN package.
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LED Video Billboards
LCD Televisions
Stadium and Advertising Displays
L , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. True Color
PWM is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners.
TYPICAL APPLICATION
V IN
15V TO
16-Channel LED Driver (Three LEDs per Channel), 20mA Current
5000:1 PWM
Dimming at 100Hz
45V
10μF
0.47μF
0.47μF
0.47μF
0.47μF
0.47μF
0.47μF
0.47μF
0.47μF
V PWM
5V/DIV
V CC
100k
L1 SW1
L2
SW2
SW3
L3
SW4
L4
L5
SW5
L6
SW6
SW7
L7
SW8
L8
I SW
20mA/DIV
OPENLED
PWM1
PWM9
LED
BRIGHTNESS
CONTROL
V CC
3V TO
5.5V
PWM2
PWM3
PWM4
PWM5
PWM6
PWM7
PWM 8
SHDN
V CC
L16 SW16
L15 SW15 V IN SW14 L14
SW13
LT3595A
L13
L12
SW12 L11 SW11 V IN SW10 L10
PWM10
PWM11
PWM12
PWM13
PWM14
PWM15
PWM16
GND
R SET
SW9 L9
LED
BRIGHT-
NESS
CONTROL
I LED
10mA/DIV
V IN = 15V
3 LEDS AT 20mA
400ns/DIV
T = 10ms
t ON = 2μs
3595A TA01b
10μF
0.47μF
0.47μF
0.47μF
0.47μF
0.47μF
0.47μF
0.47μF
0.47μF
3595A TA01
3595af
1
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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 |
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