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PT4115 PT4115B89E LED Driver IC Constant Current SOT89-5 High Efficiency

PT4115 PT4115B89E LED Driver IC Constant Current SOT89-5 High Efficiency

PT4115 PT4115B89E LED Driver IC Constant Current SOT89-5 High Efficiency
PT4115 PT4115B89E LED Driver IC Constant Current SOT89-5 High Efficiency PT4115 PT4115B89E LED Driver IC Constant Current SOT89-5 High Efficiency PT4115 PT4115B89E LED Driver IC Constant Current SOT89-5 High Efficiency

Large Image :  PT4115 PT4115B89E LED Driver IC Constant Current SOT89-5 High Efficiency Get Best Price

Product Details:

Place of Origin: CHINA
Brand Name: POWTECH/Thinkchip
Model Number: PT4115

Payment & Shipping Terms:

Minimum Order Quantity: 100PCS
Price: negotiable
Packaging Details: Tape & Reel (TR) / Cut Tape (CT)
Delivery Time: 1-2 working days
Payment Terms: T/T, Western Union,paypal,MoneyGram
Supply Ability: 9,900,000 pcs
Detailed Product Description
TYPE: PT4115 Package: SOT23-6
REEL: 3000/REEL DATE CODE: NEW
High Light:

three terminal voltage regulator

,

ldo voltage regulator

PT4115 PT4115B89E SOT89-5 LED constant current Driver IC NEW

Contact us if you need more detail or quotation of these item. info@gr-ele.com
 
G-Resource Electronics Co., Ltd, as the preferred supplier of the world well-known enterprises, take strict quality control as the key to our success. G-Resource Electronics Co., Ltd has all along been committed to the "Zero Defect" quality management system and we have established a comprehensive quality management system, from supply chain management to single transaction monitoring, from suppliers grading system to quality inspection procedures. At the same time, we also has the excellent services of electronics field : Spot Buy Service; PPV Projects;BOM Kitting;Excess Liquidation;Value-Add Service;All-in-One Package Service. And also, we ensure the fast delivery of all our customers,we not only has closed cooperation relationship with international express :UPS,DHL,FEDEX,TNT ect but also has the great support of District logistics dedicated line.We confident that you will be satisfy with us once you start to cooperate with us. We stay here and waiting you to be our partner!

 

 

 

 


Pls kindly check the below part number of same series.

 

TYPE PF VIN   MOS W     PAckage  
PT4119 -- 6.0~30Vdc PWM 0.6Ω 7x2.0 0.97 30V,0.8A SOT89-  
PT4238E 0.9 90~264VAC NO 10 0.9   SOP-7  
PT4240E 0.9 90~264VAC NO 20W 0.9   SOP-7  
PT4115 -- 6.0~50Vdc PWM 0.4Ω 10x3.0 0.97 50V,1.5A SOT89-5  
PT4121 - 6.0~60VDC PWM - - 0.97 60V SOT23-6/SOP-8  
PT4121E - 6.0~60VDC PWM - - 0.97 60V SOT23-6/SOP-8  
PT4123 - 6.0~60VDC PWM 15mΩ 100W 0.97 60V,6A ESOP-8  

OPERATION DESCRIPTION The device, in conjunction with the coil (L1) and current sense resistor (RS), forms a self oscillating continuous-mode buck converter. When input voltage VIN is first applied, the initial current in L1 and RS is zero and there is no output from the current sense circuit. Under this condition, the output of CS comparator is high. This turns on an internal switch and switches the SW pin low, causing current to flow from VIN to ground, via RS, L1 and the LED(s). The current rises at a rate determined by VIN and L1 to produce a voltage ramp (VCSN) across RS. When (VIN-VCSN) > 115mV, the output of CS comparator switches low and the switch turns off. The current flowing on the RS decreases at another rate. When (VIN-VCSN) < 85mV, the switch turns on again and the mean current on the LED is determined by 85 115 2 ( ) / 100 / mV R mV R S S + = . The high-side current-sensing scheme and on-board current-setting circuitry minimize the number of external components while delivering LED current with ±5% accuracy, using a 1% sense resistor. The PT4115 allow dimming with a PWM signal at the DIM input. A logic level below 0.3V at DIM forces PT4115 to turn off the LED and the logic level at DIM must be at least 2.5V to turn on the full LED current. The frequency of PWM dimming ranges from 100Hz to more than 20 kHz. The DIM pin can be driven by an external DC voltage (VDIM) to adjust the output current to a value below the nominal average value defined by RS. The DC voltage is valid from 0.5V to 2.5V. When the dc voltage is higher than 2.5V, the output current keeps constant. The LED current also can be adjusted by a resistor connected to the DIM pin. An internal pull-up resistor (typical 200KΩ) is connected to a 5V internal regulator. The voltage of DIM pin is divided by the internal and external resistor. The DIM pin is pulled up to the internal regulator (5V) by a 200KΩ resistor. It can be floated at normal working. When a voltage applied to DIM falls below the threshold (0.3V nom.), the output switch is turned off. The internal regulator and voltage reference remain powered during shutdown to provide the reference for the shutdown circuit. Quiescent supply current during shutdown is nominally 95uA and switch leakage is below 5uA. Additionally, to ensure the reliability, the PT4115 is built with a thermal shutdown (TSD) protection and a thermal pad. The TSD protests the IC from over temperature (160℃). Also the thermal pad enhances power dissipation. As a result, the PT4115 can handle a large amount of current safely.
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