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参数资料
| 型号： | IRS2540SPBF |
| 厂商： | International Rectifier |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR HP CONST CURR 8-SOIC |
| 标准包装： | 95 |
| 恒定电流： | 是 |
| 拓扑： | PWM，降压（降压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 通用 |
| 频率： | 500kHz |
| 电源电压： | 9 V ~ 15.6 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
| 工作温度： | -25°C ~ 125°C |
Data Sheet No. PD60293
Not recommended for new design
IRS254(0,1)(S)PbF
LED BUCK REGULATOR CONTROL IC
Description
The IRS254(0,1) are high voltage, high frequency
buck control ICs for constant LED current regulation.
They incorporate a continuous mode time-delayed
hysteretic buck regulator to directly control the
average load current, using an accurate on-chip
bandgap voltage reference.
The application is inherently protected against short
circuit conditions, with the ability to easily add open-
circuit protection. An external high-side bootstrap
circuit drives the buck switching element at high
frequencies. A low-side driver is also provided for
synchronous rectifier designs. All functions are
realized within a simple 8 pin DIP or SOIC package.
Features
? 200 V (IRS2540) and 600 V (IRS2541) half bridge
driver
? Micropower startup (<500 μ A)
? ±2% voltage reference
? 140 ns deadtime
? 15.6 V zener clamp on V CC
? Frequency up to 500 kHz
? Auto restart, non-latched shutdown
? PWM dimmable
? Small 8-Lead DIP/8-Lead SOIC packages
Packages
8-Lead PDIP
8-LeadSOIC
Typical Application Diagram
IRS254(0,1)PbF
IRS254(0,1)SPbF
VBUS
L2
VOUT+
RS1
RS2
DBOOT
IC1
CVCC1
VCC
1
8
VB
CBUS1
CBUS2
ROV1
ROV2
DCLAMP
DOV
CEN
CVCC2
COM
IFB
ENN
2
3
4
RF
7
6
5
HO
VS
LO
RG1
CBOOT
RG2
M1
M2
L1
COUT
VOUT-
RCS
ROUT
CF
COM
EN
DEN1
www.irf.com
Page 1
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| IRS2541SPBF | IC LED DRVR HP CONST CURR 8-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IRS2540SPBF | 制造商:International Rectifier 功能描述:LED Driver IC 制造商:International Rectifier 功能描述:IC, LED CURRENT REGULATOR, BUCK, SOIC-8 |
| IRS2540STRPBF | 功能描述:LED照明驱动器 200V Half Bridge LED Driver Buck Regulatr RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| IRS25411 | 制造商:IRF 制造商全称:International Rectifier 功能描述:LED BUCK REGULATOR CONTROL IC |
| IRS25411PBF | 功能描述:LED照明驱动器 Hysteretic Buck LED Drvr RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| IRS25411PBF | 制造商:International Rectifier 功能描述:IC LED DRVR DIP8 |
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