參數(shù)資料
型號(hào)： IRS2540PBF
廠商： International Rectifier
英文描述： LED BUCK REGULATOR CONTROL IC
中文描述： 發(fā)光二極管降壓穩(wěn)壓器控制IC
文件頁數(shù)： 1/14頁
文件大?。?/td> 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(guān)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(guān)代理商/技術(shù)參數(shù)
參數(shù)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(qū)動(dòng)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(fēng)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(qū)動(dòng)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(fēng)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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