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参数资料
| 型号： | LT3590ESC8#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 6/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR WHITE BCKLGT SC-70-8 |
| 标准包装： | 2,500 |
| 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： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
LT3590
PIN FUNCTIONS
(SC70/DFN)
I LED = IN LED
SW (Pin 1/Pin 3): Switch Pin. Minimize trace area at this
pin to minimize EMI. Connect the inductor at this pin.
GND (Pins 2, 3, 4/Pin 2): Ground Pins. All ground pins
should be tied directly to local ground plane. Proper
soldering of these pins to the PCB ground is required to
achieve the rated thermal performance.
CTRL (Pin 5/Pin 1): Dimming and Shutdown Pin.
Connect it below 100mV to disable the switcher. As the
pin voltage is ramped from 0V to 1.5V, the feedback volt-
age (V IN - V LED ) ramps from 0mV to 200mV, controlling
the LBD current.
V ? V
R 1
BLOCK DIAGRAM
V IN
48V
C1
1μF
VREG (Pin 6/Pin 6): Internally Generated 3.3V Regulated
Output Pin. Must be locally bypassed with a 0.1μF X5R
capacitor.
LED (Pin 7/Pin 5): Connection point for the anode of the
highest LED and the sense resistor.
V IN (Pin 8/Pin 4): Input Supply Pin. Must be locally by-
passed.
Exposed Pad (NA/Pin 7): Ground. The Exposed Pad
should be soldered to the PCB ground to achieve the
rated thermal performance.
V IN
R1
6.8Ω
+
REG
–
A = 6.25
LED
C3
0.1μF
VREG
VREF
1.25V
START-UP
EAMP
+
+
–
L1
C2
1μF
CONTROL
SW
470μH
V OUT
PWM
R
S
Q
+
∑
ISNS
–
RAMP
GENERATOR
850kHz
OSCILLATOR
CONTROL
CTRL
GND
3590 F01
Figure 1. Block Diagram
3590f
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| LT3591EDDBTRMPBF | 制造商:Linear Technology 功能描述:LED Driver 10-Seg 3.3/5/9V DFN8EP |
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