CXUS65172电荷泵驱动四个恒定电流白色LED超低漏电流调节器250kHz固定频率开关单电池锂电池输入电压高效率
发表时间:2020-07-13
浏览次数:354

目录

1.产品概述       2.产品特点     bfV嘉泰姆

3.应用范围       4.技术规格书下载(PDF文档)bfV嘉泰姆

5.产品封装       6.电路原理图  bfV嘉泰姆

7.相关产品bfV嘉泰姆

   产品概述 返回TOPbfV嘉泰姆


The CXUS65172 charge pump drives up to four white LEDs with regulated constant current for uniform intensity. By utilizing dynamic 1x/2x charge-pump modes and ultra-low-dropout current regulators, it achieves high efficiency over the 1-cell lithium battery input voltage range. The 250kHz fixed frequency switching allows for tiny external components, and the regulation scheme is optimized to ensure low EMI and low input ripple. The CXUS65172 uses a single wire EN/Brightness control to enable, disable, and set the LED current with 16-linear steps down to 100μA. Once the desired LED brightness is set, the CXUS65172 maintains constant LED current as long as EN pin is kept high. If EN pin kept low for 90μs, the CXUS65172 enters shutdown. The short-circuit, over-voltage, and thermal protection are also included. The soft start is enabled to reduce the inrush current during power on and pump mode transformed.

   产品特点 返回TOPbfV嘉泰姆


Dynamic 1x/2x Charge Pump Switching bfV嘉泰姆

„ Up to 80mA (20mA/LED) Drive Capability bfV嘉泰姆

„ 90% Average Efficiency bfV嘉泰姆

„ 0.5% (TYP) LED Current Matching bfV嘉泰姆

„ Wide Current Range per LED [0.1mA ~ 20mA] bfV嘉泰姆

„ Single Wire EN/Brightness Control bfV嘉泰姆

„ 2.7V to 5.5V Supply Voltage Range bfV嘉泰姆

„ < 1μA Shutdown Current bfV嘉泰姆

„ Output Over-voltage Protection bfV嘉泰姆

„ Open/Short LED Protection bfV嘉泰姆

„ Thermal Shutdown Protection bfV嘉泰姆

„ TDFN2.5X2.5-10 and TQFN3X3-16 PackagebfV嘉泰姆

   应用范围 返回TOPbfV嘉泰姆


„ Mobile Phones bfV嘉泰姆

„ White LED Backlighting bfV嘉泰姆

„ Camera Flash LED LightingbfV嘉泰姆

   技术规格书(产品PDF) 返回TOP bfV嘉泰姆


     需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持bfV嘉泰姆

 QQ截图20160419174301.jpgbfV嘉泰姆

产品封装图 返回TOPbfV嘉泰姆


image.pngbfV嘉泰姆

电路原理图 返回TOPbfV嘉泰姆


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Charge   Pump and Current SourcebfV嘉泰姆

Part   NO.bfV嘉泰姆

Vin(V)bfV嘉泰姆

min.bfV嘉泰姆

Vin(V)bfV嘉泰姆

max.bfV嘉泰姆

IOUTbfV嘉泰姆

(mA)bfV嘉泰姆

FOSCbfV嘉泰姆

(kHz)bfV嘉泰姆

VOUTbfV嘉泰姆

(V)bfV嘉泰姆

LED bfV嘉泰姆

NumberbfV嘉泰姆

Eff.bfV嘉泰姆

(%)bfV嘉泰姆

NotebfV嘉泰姆

PackagebfV嘉泰姆

CXUS65171bfV嘉泰姆

3bfV嘉泰姆

5.5bfV嘉泰姆

600bfV嘉泰姆

250bfV嘉泰姆

1x/2xbfV嘉泰姆

1bfV嘉泰姆

--bfV嘉泰姆

Flash LEDdriver,Flash/Torch/SHDNbfV嘉泰姆

TDFN3X3-10bfV嘉泰姆

CXUS65172bfV嘉泰姆

2.7bfV嘉泰姆

5.5bfV嘉泰姆

80bfV嘉泰姆

250bfV嘉泰姆

1x/2xbfV嘉泰姆

4bfV嘉泰姆

90bfV嘉泰姆

4-CH LED in Parallel,PWM control16 bfV嘉泰姆

levels dimming controlbfV嘉泰姆

TDFN2.5X2.5-10bfV嘉泰姆

TQFN3X3-16bfV嘉泰姆

CXUS65173bfV嘉泰姆

2.7bfV嘉泰姆

5bfV嘉泰姆

90bfV嘉泰姆

1000bfV嘉泰姆

4.5/5bfV嘉泰姆

--bfV嘉泰姆

88bfV嘉泰姆

EN,GND,VOUT,C+,VIN,C-,BoostbfV嘉泰姆

TSOT-23-6/TDFN2X2-6bfV嘉泰姆

CXUS65174bfV嘉泰姆

1.8bfV嘉泰姆

5bfV嘉泰姆

60bfV嘉泰姆

270bfV嘉泰姆

-VINbfV嘉泰姆

--bfV嘉泰姆

90bfV嘉泰姆

IN,EN,GND,C-,C+,OUT,InvertingbfV嘉泰姆

SOT-23-6/TDFN2X2-6bfV嘉泰姆

CXUS65175bfV嘉泰姆

1.8bfV嘉泰姆

5bfV嘉泰姆

60bfV嘉泰姆

270bfV嘉泰姆

-VINbfV嘉泰姆

--bfV嘉泰姆

90bfV嘉泰姆

NC,CP+,GND,CP-,OUT,NC,NC,INbfV嘉泰姆

SOP-8bfV嘉泰姆

CXUS65176bfV嘉泰姆

8bfV嘉泰姆

24bfV嘉泰姆

10bfV嘉泰姆

350bfV嘉泰姆

1.5xbfV嘉泰姆

--bfV嘉泰姆

--bfV嘉泰姆

PG,D_CAPbfV嘉泰姆

MSOP-8bfV嘉泰姆

CXUS65177bfV嘉泰姆

8bfV嘉泰姆

24bfV嘉泰姆

10bfV嘉泰姆

370bfV嘉泰姆

1.5xbfV嘉泰姆

--bfV嘉泰姆

--bfV嘉泰姆

PG,D_CAP,12V,ONx,DRIVERxbfV嘉泰姆

TQFN3X3-20bfV嘉泰姆

CXUS65178bfV嘉泰姆

4.5bfV嘉泰姆

5.5bfV嘉泰姆

14bfV嘉泰姆

--bfV嘉泰姆

2xbfV嘉泰姆

--bfV嘉泰姆

--bfV嘉泰姆

2-NMOSFET driver,20mA dischargingbfV嘉泰姆

TQFN3X3-20bfV嘉泰姆