参数资料
型号: SC443ULTRT
厂商: Semtech
文件页数: 3/19页
文件大小: 0K
描述: IC LED DRIVR CONST CURRENT 16MLP
标准包装: 1
恒定电流:
拓扑: PWM,升压(升压)
输出数: 3
内部驱动器:
类型 - 主要: 背光
类型 - 次要: 白色 LED
频率: 640kHz ~ 960kHz
电源电压: 4.5 V ~ 21 V
输出电压: 42V
安装类型: 表面贴装
封装/外壳: 16-UFQFN 裸露焊盘
供应商设备封装: 16-MLP(3x3)
包装: 标准包装
工作温度: -40°C ~ 85°C
其它名称: SC443ULTRTDKR
SC443
Absolute Maximum Ratings
V IN Pin: Supply Voltage …………………………… -0.3 to 30V
Maximum Output Power ………………………………… 4W
FSET, IOSET Voltage ………………………………… -0.3 to 2V
SW, VOUT, IO1~IO3, OVPIN Voltage ……………… 0.3V to 45V
SS, COMP Voltage …………………………………… -0.3 to 3V
EN, PWM Voltage …………………………… -0.3 to V IN +0.3V
Recommended Operating Conditions
Supply Input Voltage ……………………………… 4.5 to 27V
Maximum Output Voltage…………………………………42V
Maximum LED Current ………………………………… 30mA
Thermal Information
Junction to Ambient (1) ……………………………… 38°C/W
PGND to AGND and IOGND…………………………
Peak IR Reflow Temperature ………………………….
ESD Protection Level (2) …………………………………
± 0.3V
260°C
2kV
Maximum Junction Temperature……………………… 150°C
Storage Temperature ………………………… -65 to +150°C
Lead Temperature (Soldering) 10 sec ………………… 260°C
Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters specified
in the Electrical Characteristics section is not recommended.
NOTES-:
(1)
(2)
Calculated from package in still air, mounted to 3” x 4.5”, 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.
Tested according to JEDEC standard JESD22-A114-B.
Electrical Characteristics
Unless otherwise noted, V IN = 12V, -40°C < T A = T J < 85°C, R IOSET = 4.02kΩ, R FSET =40.2 kΩ
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Input Supply
Under-Voltage Lockout Threshold
UVLO Hysteresis
U VLO-TH
U VLO-H
V IN rising
4.2
250
4.45
V
mV
V IN Quiescent Supply Current
V IN Supply Current in Shutdown
I IN-Q
I IN-S
No switching
EN / PWM = low
3
1
mA
μA
Oscillator
Switching Frequency (1)
Switching Frequency Range (1)
f S
f S
R FSET = 40.2 kΩ
0.64
200
0.8
0.96
1200
MHz
kHz
Maximum Duty Cycle (1)
Minimum Duty Cycle (1)
Minimum On-Time
D MAX
D MIN
T ON-MIN
90
200
0
%
%
ns
Internal Power Switch
Switch Current Limit
I SW
1
A
Switch Saturation Voltage
Switch Leakage Current
V SAT
I S-LEAK
I SW = 500mA
V SW = 12V
200
0.01
400
1
mV
μA
? 2009 Semtech Corp.
www.semtech.com
3
相关PDF资料
PDF描述
SC4509SKTRT IC LED DRVR WT/OLED BCKLT SOT236
SC4538ULTRT IC LED DRIVR WHITE BCKLGT MLPD-8
SC4539ULTRT IC LED DRIVR CONST CURRENT 8MLPD
SC4540ULTRT IC LED DRIVR CONST CURRENT 8MLPD
SC4541SKTRT IC LED DRVR BACKLIGHT SOT23-6
相关代理商/技术参数
参数描述
SC44-47SUF 制造商:SEALTITE PRODUCTS 功能描述:WIDE BOLT CLAMP 44-47MM
SC445 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:High Efficiency Integrated Driver for 4-Strings of 150mA LEDs
SC446 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:High Efficiency Integrated Driver for 3-Strings of 100mA LEDs
SC446TETRT 功能描述:IC LED DRVR WHT BCKLGT TSSOP-16 RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 特色产品:LM3445 TRIAC Dimmable LED Driver 标准包装:55 系列:PowerWise® 恒定电流:是 恒定电压:- 拓扑:PWM,降压(降压) 输出数:1 内部驱动器:无 类型 - 主要:- 类型 - 次要:高亮度 LED(HBLED) 频率:30kHz ~ 1MHz 电源电压:8 V ~ 12 V 输出电压:- 安装类型:表面贴装 封装/外壳:14-SOIC(0.154",3.90mm 宽) 供应商设备封装:14-SOICN 包装:管件 工作温度:-40°C ~ 125°C 产品目录页面:1285 (CN2011-ZH PDF) 其它名称:LM3445M
SC4485 制造商:SEMS SCREWS 功能描述: