RICHTEK RT8497AGS
| Manufacturer | RICHTEKAsian Brands |
| MPN | RT8497AGS |
| LCSC Part # | C19539913 |
| Packaging | SOP-8 |
| Customer # | |
| Key Attributes | Buck 1 250mA SOP-8 LED Drivers ICs RoHS |
| Datasheet | RICHTEK RT8497AGS |
| RoHS Compliance | 1 documents available |
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs | |
| Manufacturer | RICHTEK | |
| Packaging | SOP-8 | |
| Features | Over Voltage Protection;Short Circuit Protection;LED open-circuit protection;Over-Temperature Protection (OTP) | |
| Frequency - Switching | - | |
| Operating temperature | -40℃~+85℃ | |
| Topology | Buck | |
| Number of Channels | 1 | |
| Output Current | 250mA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs | |
| Manufacturer | RICHTEK | |
| Packaging | SOP-8 | |
| Features | Over Voltage Protection;Short Circuit Protection;LED open-circuit protection;Over-Temperature Protection (OTP) | |
| Frequency - Switching | - |
| Type | Description | |
|---|---|---|
| Operating temperature | -40℃~+85℃ | |
| Topology | Buck | |
| Number of Channels | 1 | |
| Output Current | 250mA |
Introduction
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.
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 1μμ 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
Products Specifications
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs | |
| Manufacturer | RICHTEK | |
| Packaging | SOP-8 | |
| Features | Over Voltage Protection;Short Circuit Protection;LED open-circuit protection;Over-Temperature Protection (OTP) | |
| Frequency - Switching | - | |
| Operating temperature | -40℃~+85℃ | |
| Topology | Buck | |
| Number of Channels | 1 | |
| Output Current | 250mA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs | |
| Manufacturer | RICHTEK | |
| Packaging | SOP-8 | |
| Features | Over Voltage Protection;Short Circuit Protection;LED open-circuit protection;Over-Temperature Protection (OTP) | |
| Frequency - Switching | - |
| Type | Description | |
|---|---|---|
| Operating temperature | -40℃~+85℃ | |
| Topology | Buck | |
| Number of Channels | 1 | |
| Output Current | 250mA |
Introduction
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.
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 1μμ 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
C19539913 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |