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参数资料
| 型号： | IRS2980STRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 3/18页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER |
| 标准包装： | 2,500 |
| 系列： | * |
IRS2980S
Description
The IRS2980S utilizes International Rectifier's control and high-voltage technologies to realize a simple,
high-performance Buck LED driver solution. This solution is based on hysteretic output current regulation
typically operating from 25 kHz to 120 kHz. Frequency and duty cycle vary to maintain a tightly regulated
average output current over variations in line and load. Output current ripple will depend on inductor
selection in conjunction with input and output voltages as well as output current and component selection.
The IRS2980S uses a unique floating high side differential current sense and level shift scheme allowing
hysteretic operation with a low side switching MOSFET optimizing size and cost. In addition, the IRS2980S
includes a high voltage regulator able to operate up to 450V eliminating the need for an external VCC supply.
A PWM dimming interface is also included that can be controlled from a 0 to 2V analog or 3.3 or 5V logic
control signal able to operate up to 1kHz offering brightness control from 0 to 100%. A programmable on
board PWM oscillator is used with DC dimming control.
Block Diagram
HV 1
Ref
0.5V
VCC
5
ADIM
CS 8
15.6V
2V
0.2V
VS 2
High Side
Well
6
RAMP
1V
VCC 3
REGULATOR
UVLO
VCC
15.6V
NOISE FILTER +
MAXIMUM
FREQUENCY
TIMING
7
4
OUT
COM
www.irf.com
3
? 2011 International Rectifier
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRS-3.3/15-Q48N-C | 功能描述:1/16TH BRICK 3.3V 15A 18-75VIN 制造商:murata power solutions inc. 系列:* 零件状态:在售 标准包装:24 |
| IRS-3.3/15-Q48NF-C | 功能描述:1/16TH BRICK 3.3V 15A 18-75VIN 制造商:murata power solutions inc. 系列:* 零件状态:在售 标准包装:24 |
| IRS4426 | 制造商:IRF 制造商全称:International Rectifier 功能描述:DUAL LOW SIDE DRIVER |
| IRS44262SPBF | 制造商:International Rectifier 功能描述:DUAL LOW SIDE DRIVER - Rail/Tube 制造商:International Rectifier 功能描述:IC DVR LOW SIDE DUAL 8-SOIC 制造商:International Rectifier 功能描述:TUBE / Dual Low Side Driver |
| IRS44262STRPBF | 制造商:International Rectifier 功能描述:DUAL LOW SIDE DRIVER - Tape and Reel 制造商:International Rectifier 功能描述:IC DVR LOW SIDE DUAL 8-SOIC 制造商:International Rectifier 功能描述:T&R / Dual Low Side Driver |
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