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LED Driver

LM3909 Typical 1.5V Flasher Schematic Diagram and Datasheet 

September 1st, 2010

The LM3909 features low cost, low voltage and low current drain, with a bright-high current LED pulse and wide temperature range. It can be applied on applications such as flashlight finder, siren for toy fire engine, sawtooth generators, emergency locators, warning indicators and etc. [...]

TLE4241GM LED Driver Typical Application Circuit Schematic 

July 18th, 2012

You can have TLE4241GM LED Driver Datasheet which can be download in pdf filetype. (source: infineon.com) [...]

TLE4241GM LED Driver Pin Configuration Diagram 

July 24th, 2012

And here are TLE4241GM LED Driver Pin Configuration Diagram:
1. GND = Ground, which is internally connected to pin 5.
2. ST = Status Output, open collector output to external pull
up resistor (10k or higher).
3. PWM = Pulse Width Modulation Input, just connect it to VI if not being used.
4. SET = High/Low Current Input, choice of current level. [...]

AT9933 Datasheet, the Automotive Hysteretic Boost-Buck LED Driver IC 

August 22nd, 2009

(more…) [...]

Design Boost-Buck Converter using HV9930 

September 2nd, 2009

If you consider in designing a LED lamp driver using a low noise boost buck topology to control the application, you may use the HV9930 from Supertex. It can be applied to RGB backlight applications, battery powered LED lamps, and other low voltage AC/DC or DC/DC LED drivers. And below is the circuit diagram of Boost-Buck Converter using the HV9930. [...]

TDA5140A Brushless DC Motor Circuit and Datasheet 

August 17th, 2012

The TDA5140A yet embody an Uncommitted Transconductance Amplifier (OTA) that can be appled as a control amplifier. The output is adequate for directly driving an external power transistor. The TDA5140A is built for systems with low current consumption, there are: use of I2L logic, adaptive base drive for the output transistors, likelihood of using a pick-up coil without bias current. [...]

Adaptable Digital Tachometer Circuit Diagram and Datasheet 

August 15th, 2012

A: Apply momentary ground to reset hours to zero.
B: When using the MTH6 with inductive loads, we recommend installing a suppression diode across all coils.
C: Terminals 4 and 8 may be grounded on negative ground power supply.
D: Alternator must be equipped with a tach terminal (auxiliary AC terminal).
E: Connecting full battery potential to terminal 9 can cause damage
to the switchgage. Shutdown circuit is rated for 300 mA continuous. Circuit grounds out at set point. [...]

Great and Rapid Laser Driver Circuit for Multi-Function Integrated Laser Driver 

August 14th, 2012

Integrated laser drivers is recommended for fast switching, since signal changes will move faster because of reduced wiring line inductance and capacitance. The use of integrated laser driver circuit gives some benefit such as: output power stability improvement, board space reduction, error monitoring, better dynamic performance, and MTBF reliability improvement. [...]

LM348 Sine Wave Generator Circuit Diagram 

August 10th, 2012

The phase shift oscillator works in such a way that if the amplitude of the inverting amplifier is not high enough the system will continually attenuate the signal until the amplitude is zero, it was therefore decided to change the amplification power of the inverting amplifier. [...]

NCP1034 DC to DC Buck Converter Circuit Diagram and Datasheet 

August 8th, 2012

And here is the NCP1034 datasheet(source:onsemi.com). [...]

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