The ZXSC400 is a voltage mode boost converter in the SOT26 package. Its low feedback voltage allows the current in a chain of °Cs to be set and accurately monitored with a single resistor giving minimal losses.
The SSL2101 is a Switched Mode Power Supply (SMPS) controller IC that operates in combination with a phase cut dimmer directly from rectified mains. It is designed to drive LED devices.
Designed with Seoul Semiconductor's own phosphor and packaging technology. The P4 emits 240 lm at 1A. Luminous efficacy of 100 lm/W @ 350 mA at the maximum, with only a single die. Z-Power series is designed for high current operation and high flux output applications.
Z-POWER LED Series
Z-Power LED's thermal management perform exceeds other power LED solutions. It incorporates state of the art SMD design and Thermal emission material. Z Power LED is ideal light sources for general illumination applications, custom designed solutions, automotive large LCD backlights.
" Why constant current? - LED is the component that allows current through itself according to input voltage. In other words, it is close to voltage control component. General LED, especially Z-POWER LED must be driven by constant current. There are two main reasons. Firstly, LED is an optical device. How much luminous flux we can get from LED is very important. Generally luminous flux is closely related to driving current. It is easy to recognize and control optical characteristics by current constant. Secondly, LED is more sensitive to voltage than current."
Seoul Semiconductor Co., Ltd is a Korean company manufacturing LED devices. The company is producing LED packages in two plants in Ansan, Korea.
Seoul Semiconductor Co. Ltd.
1B-25, 727, Wonsi-dong, Danwon-gu, Ansan-city, Gyeonggi-do, Korea 425-851
Z-POWER LED Series
Z-Power LED's thermal management perform exceeds other power LED solutions. It incorporates state of the art SMD design and Thermal emission material. Z Power LED is ideal light sources for general illumination applications, custom designed solutions, automotive large LCD backlights.
" Why constant current? - LED is the component that allows current through itself according to input voltage. In other words, it is close to voltage control component. General LED, especially Z-POWER LED must be driven by constant current. There are two main reasons. Firstly, LED is an optical device. How much luminous flux we can get from LED is very important. Generally luminous flux is closely related to driving current. It is easy to recognize and control optical characteristics by current constant. Secondly, LED is more sensitive to voltage than current."
Seoul Semiconductor Co., Ltd is a Korean company manufacturing LED devices. The company is producing LED packages in two plants in Ansan, Korea.
Seoul Semiconductor Co. Ltd.
1B-25, 727, Wonsi-dong, Danwon-gu, Ansan-city, Gyeonggi-do, Korea 425-851
Conventional TRIAC dimmers are designed to interface to a resistive
load (halogen or incandescent bulb), while today's LED driver solutions
interfaced to a standard wall dimmer produce 120 Hz flicker of the LED
and/or do not allow 100:1 dimming.
LM3445 - TRIAC dimmable offline LED driver
The LM3445 provides a constant current for illuminating high power LEDs and includes a TRIAC . The LM3445 contains all the necessary circuitry to build a line-powered (mains powered) constant current LED driver whose output current can be controlled with a conventional TRIAC dimmer.
Thermal shutdown limits total power dissipation by turning off the output switch when the IC junction temperature exceeds 165°C. After thermal shutdown occurs, the output switch doesn ’t turn on until the junction temperature drops to approximately 145°C
LM3445 - TRIAC dimmable offline LED driver
The LM3445 provides a constant current for illuminating high power LEDs and includes a TRIAC . The LM3445 contains all the necessary circuitry to build a line-powered (mains powered) constant current LED driver whose output current can be controlled with a conventional TRIAC dimmer.
Thermal shutdown limits total power dissipation by turning off the output switch when the IC junction temperature exceeds 165°C. After thermal shutdown occurs, the output switch doesn ’t turn on until the junction temperature drops to approximately 145°C
This chip for LED driving has a power factor correction, the critical conduction mode keeps transformer small. A opto-coupler for feedback is avoided by an innovative primary shunt monitor.
Offline Isolated Flyback LED Controller - LT3799-1
The LT3799-1 uses a micropower hysteretic start-up to efficiently operate at offline input voltages, with a third winding to provide power to the part. An internal LDO provides a well regulated supply for the part’s internal circuitry and gate driver.
20 Watt LED Driver using LT799-1
The FAULT pin provides notification of open and short LED conditions. The LT3799-1 offers improved line regulation over the LT3799, but is not designed for use with a TRIAC dimmer.
Features
Offline Isolated Flyback LED Controller - LT3799-1
The LT3799-1 uses a micropower hysteretic start-up to efficiently operate at offline input voltages, with a third winding to provide power to the part. An internal LDO provides a well regulated supply for the part’s internal circuitry and gate driver.
20 Watt LED Driver using LT799-1
The FAULT pin provides notification of open and short LED conditions. The LT3799-1 offers improved line regulation over the LT3799, but is not designed for use with a TRIAC dimmer.
Features
- Offline 4W to 100W+ LED Applications
- High DC VIN LED Applications
- Gate driver to drive an external high voltage MOSFET.
- Typical power factors of 0.97.
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