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參數資料
| 型號： | IRS2540PBF |
| 廠商： | International Rectifier |
| 英文描述： | LED BUCK REGULATOR CONTROL IC |
| 中文描述： | 發光二極管降壓穩壓器控制IC |
| 文件頁數： | 1/14頁 |
| 文件大小： | 456K |
| 代理商： | IRS2540PBF |
www.irf.com Page 1
Data Sheet No. PD60293
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.
Typical Application Diagram
VBUS
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
IRS254(0,1)PbF IRS254(0,1)SPbF
1
2
3
4
8
7
6
5
I
VCC
IFB
LO
VS
HO
VB
COM
M1
M2
CBOOT
DBOOT
RCS
RF
CF
RS1
CVCC1
CVCC2
ROV1
ROV2
CEN
DOV
DEN1
L1
EN
COM
COUT
RG1
RG2
VOUT+
VOUT
IC1
CBUS2
RS2
DCLAMP
CBUS1
L2
ENN
ROUT
相關PDF資料 |
PDF描述 |
|---|---|
| IRS2540STRPbF | LED BUCK REGULATOR CONTROL IC |
| IRS2541PbF | LED BUCK REGULATOR CONTROL IC |
| IRS2541SPbF | LED BUCK REGULATOR CONTROL IC |
| IRS2541STRPbF | LED BUCK REGULATOR CONTROL IC |
| IRSF3021 | FULLY PROTECTED POWER MOSFET SWITCH(Vds(50V), Rds(on)=200mohm) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| IRS2540PBF | 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, DIP-8 |
| IRS2540SPbF | 功能描述:LED照明驅動器 200V HALF BRDG DRVR LED BUCK REGULATOR RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| 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照明驅動器 200V Half Bridge LED Driver Buck Regulatr RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| IRS25411 | 制造商:IRF 制造商全稱:International Rectifier 功能描述:LED BUCK REGULATOR CONTROL IC |
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