| 1 |
RT84 |
AUTOMOTIVE BRIDGE RECTIFIERS |
59K |
|
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| 2 |
RT8474A |
The RT8474A is a current-mode LED driver supporting wide
input voltage range from 4.5V to 50V in multiple topologies.
With the internal 500kHz operating frequency, the size of
the external PWM inductor and input/output capacitors
can be minimized. High efficiency is achieved by a 100mV
current sensing control. LED dimming control can be done
from either analog or PWM signal. The RT8474A provides
an internal soft-start function to avoid inrush current and
thermal shutdown to prevent the device from overheat.
The RT8474A is available in the SOP-8 (Exposed pad)
package. |
226K |
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|
| 3 |
RT8497 |
The RT8497 integrates a power MOSFET and a Boundary mode controller. It is used for step down converters by well controlling the internal MOSFET and regulating a constant output current.
The RT8497 features a ZCS detector which keeps system operating in BCM and obtaining excellent power efficiency, better EMI performance.
The RT8497 achieves high Power Factor Correction (PFC) and low Total Harmonic Distortion of Current (THDi) by a smart internal line voltage compensation circuit which has minimized system component counts; saved both PCB size and total system cost.
Especially, the RT8497 can use a cheap simple drum core inductor in the system instead of an EE core to obtain high efficiency.
The RT8497 is housed in a SOP-8 package. Thus, the components in the whole LED driver system can be made very compact.
package.
(Exposed Pad) package. |
828K |
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