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TK11850LTL中文资料PDF规格书
TK11850LTL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 |
23+ |
SOT23 |
3000 |
全新原装现货 优势库存 |
询价 | ||
TOKO |
03+ |
SOP-8 |
3554 |
原装现货低价销售 |
询价 | ||
TOKO |
21+ |
SOT |
20000 |
全新原装 公司现货 价优 |
询价 | ||
TOKO |
22+ |
SOP-8 |
9600 |
原装现货,优势供应,支持实单! |
询价 | ||
TOKO |
22+23+ |
SOP-8 |
9718 |
绝对原装正品全新进口深圳现货 |
询价 | ||
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 |
20+ |
SOP-8 |
2960 |
诚信交易大量库存现货 |
询价 | ||
TOKO |
24+ |
SOT23-8 |
19698 |
原装正品现货库存假一赔十欢迎询价 |
询价 | ||
TOKO |
21+ |
SOT23L-8 |
15000 |
原厂VIP渠道,亚太地区一级代理商,可提供更多数量! |
询价 | ||
TOKO |
23+ |
NA/ |
6804 |
原装现货,当天可交货,原型号开票 |
询价 |