RT8497 Datasheet PDF - Richtek
| Part Number | RT8497 | |
| Description | Power MOSFET Integrated High Efficiency BCM LED Driver Controller | |
| Manufacturers | Richtek | |
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There is a preview and RT8497 download ( pdf file ) link at the bottom of this page. Total 13 Pages | ||
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RT8497
Power MOSFET Integrated High Efficiency BCM LED Driver
Controller for High Power Factor Applications
General Description
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.
Ordering Information
RT8497
Package Type
S : SOP-8
Lead Plating System
G : Green (Halogen Free and Pb Free)
MOSFET Built-In
Default : 500V/5.2
A : 500V/2
B : 600V/4.2
C : 600V/7
D : 600/3.2
Note :
Richtek products are :
RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes
Features
Built-In Power MOSFET
Support High Power Factor and Low THDi
Applications
Programmable Constant LED Current with
High-Precision Current Regulation
Extremely Low Quiescent Current Consumption
and 1A Shutdown Current
Compact Floating Buck Topology with Low
Component Counts, Small PCB Size, and Low
System BOM Cost
Unique Programmable AND Pin for ZVS Setting
to Achieve Best Power Efficiency
Support Off-Line Universal Input Voltage Range
Built-in Over Thermal Protection
Built-in Over Voltage Protection
Output LED String Open Protection
Output LED String Short Protection
Output LED String Over Current Protection
Applications
E27, PAR, Light Bar, Offline LED Lights
Pin Configurations
(TOP VIEW)
SGND
VC
AND
SOURCE
8
27
36
45
SOP-8
VCC
NC
DRAIN
DRAIN
Copyright © 2015 Richtek Technology Corporation. All rights reserved.
DS8497-02 October 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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RT8497
Parameter
Symbol
Test Conditions
Min Typ Max Unit
RT8497, VDS = 500V
RT8497A, VDS = 500V
Drain-Source Leakage Current IDSS
RT8497B, VDS = 600V
-- -- 10 A
RT8497C, VDS = 600V
RT8497D, VDS = 600V
Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may affect
device reliability.
Note 2. JA is measured at TA = 25C on a high effective thermal conductivity four-layer test board per JEDEC 51-7.
Note 3. Devices are ESD sensitive. Handling precaution recommended.
Note 4. The device is not guaranteed to function outside its operating conditions
Copyright © 2015 Richtek Technology Corporation. All rights reserved.
DS8497-02 October 2015
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for RT8497 electronic component. |
| Information | Total 13 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ RT8497.PDF Datasheet ] | |
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