TK11850L中文资料PDF规格书
TK11850L规格书详情
DESCRIPTION
The TK11850L is a pulse skipping step-up DC-DC converter IC designed for White LED driver applications with the following built in: a very high current switching transistor (400 mA peak), an inductor current limit detector, low voltage reference (Vref = 0.5 V), high speed oscillator, an error comparator, a rectifier diode (for small power output) and an ON/OFF control. The IC works with a very wide operating supply range (2.3 V to 10 V) and the adjustable output voltage can be set as high as 20 V. The device is in the ON state when the EN pin is pulled to a high level. Using the very small TK11850L and a few external components, battery powered systems with LCD displays such as digital cameras and cellular phones can be effectively backlit with white LEDs. The white LEDs are connected in series and driven at a constant current resulting in uniform brightness
and high efficiency.
FEATURES
■ Very High Speed Adjustable OSC (Max 800 kHz)
■ Very Wide Operating Voltage Range (2.3 V to 10 V)
■ Low Loss Detector (Low Reference Voltage: VREF = 0.5 V)
■ Operates with Toko D31FU Miniature Coil (Current Limited by Input Current Sensor)
■ Internal Switching Transistor
■ Internal Diode
■ Active High On / Off Control
■ Available Intensity Control Using EN Pin with PWM Signal
■ Very Small SOT23L-8 Surface Mount Package
APPLICATIONS
■ LED Backlighting and Frontlighting
■ LED Flashlights
■ Step-up DC-DC Converters
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TOKO |
2020+ |
SOP-8 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
TOKO |
1742+ |
SOT23L-8 |
98215 |
只要网上有绝对有货!只做原装正品! |
询价 | ||
TOKO |
23+ |
SOT |
90000 |
只做原厂渠道价格优势可提供技术支持 |
询价 | ||
TOKO |
22+ |
SOT |
50000 |
只做原装正品,假一罚十,欢迎咨询 |
询价 | ||
TOKO |
23+ |
NA/ |
4550 |
原厂直销,现货供应,账期支持! |
询价 | ||
TOKO |
22+23+ |
SOT23-8 |
42371 |
绝对原装正品现货,全新深圳原装进口现货 |
询价 | ||
TOKO |
SOP-8 |
68500 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
TOKO |
23+ |
SOT23L-8 |
4500 |
全新原装、诚信经营、公司现货销售! |
询价 | ||
TOKO |
03+ |
SOP-8 |
3554 |
原装现货海量库存欢迎咨询 |
询价 | ||
TOKO |
SOT23L-8 |
11200 |
原厂授权一级代理、全球订货优势渠道、可提供一站式BO |
询价 |